Nilfisk ALTO Vacuum Cleaner 46 53 User Manual

American-Lincoln  
Technology  
ATS 46/53 BATTERY  
SWEEPER/SCRUBBER  
OPERATOR’S  
MANUAL &  
PARTS LIST  
AT  
S
4
6
/5  
3
Beginning with Serial Number: 683082  
READ THIS BOOK  
This book has important information for the use and safe operation of this machine. Failure  
to read this book prior to operating or attempting any service or maintenance procedure to  
your machine could result in injury to you or to other personnel. Damage to the machine or to  
other property could occur as well. You must have training in the operation of this machine  
before using it.  
ISO 9001  
U
®
L
FILE#A2287  
All directions given in this book are as seen from the operator's position at the rear of the machine.  
American-Lincoln®  
Part No.  
2004  
Printed in the USA  
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TABLE OF CONTENTS  
SERVICE CHART ....................................................................................................................................................... 1-34  
SERVICE PRECAUTIONS .......................................................................................................................................... 1-36  
SERVICE INSTRUCTIONS ......................................................................................................................................... 1-37  
MAIN BROOM .................................................................................................................................................... 1-37  
CHECKING THE MAIN BROOM SWEEP PATTERN.......................................................................................... 1-37  
ADJUSTING THE MAIN BROOM HEIGHT ......................................................................................................... 1-37  
REPLACING THE MAIN BROOM ....................................................................................................................... 1-37  
MAIN BROOM LEVELADJUSTMENT ................................................................................................................ 1-37  
SIDE BROOM .................................................................................................................................................... 1-38  
CHECKING THE SIDE BROOM SWEEP PATTERN.......................................................................................... 1-38  
ADJUSTING THE SIDE BROOM HEIGHT ......................................................................................................... 1-38  
REPLACING THE SIDE BROOM ....................................................................................................................... 1-38  
HOPPER SERVICE ........................................................................................................................................... 1-38  
HOPPER............................................................................................................................................................ 1-39  
CLEANING THE HOPPER ................................................................................................................................ 1-39  
CHECKING THE HOPPER SEALS ................................................................................................................... 1-39  
DUST CONTROL FILTER ................................................................................................................................. 1-39  
CHECKING THE DUST CONTROL FILTER ..................................................................................................... 1-39  
CLEANING THE DUST CONTROL FILTER ...................................................................................................... 1-39  
REPLACING THE DUST CONTROL FILTER .................................................................................................... 1-40  
DUST FLAPS ..................................................................................................................................................... 1-40  
CHECKING THE DUST FLAPS ......................................................................................................................... 1-40  
ADJUSTING THE DUST FLAPS ........................................................................................................................ 1-40  
BRAKES ............................................................................................................................................................ 1-41  
ADJUSTING THE BRAKE PEDAL ..................................................................................................................... 1-41  
ADJUSTING THE BRAKES ............................................................................................................................... 1-41  
GENERALMACHINEMAINTENANCE ........................................................................................................................ 1-42  
FILLING THE HYDRAULIC RESERVOIR .......................................................................................................... 1-42  
CLEANING THE HYDRAULIC SYSTEM ............................................................................................................ 1-42  
REPLACING THE RETURN FILTER ELEMENT ............................................................................................... 1-42  
REPLACING THE SCRUB BRUSH .................................................................................................................. 1-43  
COVERSAND LATCHES................................................................................................................................... 1-43  
SOLUTION LOW WARNING LIGHT .................................................................................................................. 1-43  
RECOVERY HIGH WARNING LIGHT ................................................................................................................ 1-43  
SOLUTION CONTROL ...................................................................................................................................... 1-43  
RECYCLING PUMP ESP SYSTEM.................................................................................................................... 1-43  
RECYCLING PUMP STORAGE ......................................................................................................................... 1-44  
REAR SQUEEGEE ............................................................................................................................................ 1-44  
SQUEEGEE CASTER WHEELS ....................................................................................................................... 1-44  
ADJUSTING CASTERS ..................................................................................................................................... 1-44  
BATTERY ........................................................................................................................................................... 1-45  
PARTS LIST LEGEND ................................................................................................................................................ 1-46  
GENERALTROUBLESHOOTING ............................................................................................................................... 1-47  
ORDERING PARTS .................................................................................................................................................... 1-49  
CHAPTER 2 PARTS ................................................................................................................................................... 2-1  
MAIN BROOM .................................................................................................................................................... 2-2  
SIDE BROOM .................................................................................................................................................... 2-4  
SIDE BROOM PULLEY...................................................................................................................................... 2-6  
SIDE BROOM LEVER ........................................................................................................................................ 2-8  
SIDE BROOM LIFT SYSTEM ............................................................................................................................. 2-10  
BROOM CHAMBER FLAPS & SEALS ............................................................................................................... 2-12  
BROOM CHAMBER DOORS ............................................................................................................................. 2-14  
HOPPER............................................................................................................................................................ 2-16  
HOPPER LID/COVER ....................................................................................................................................... 2-20  
HOPPER DOOR CYLINDER ............................................................................................................................. 2-21  
HOPPER DUMP DOOR .................................................................................................................................... 2-22  
HOPPER CONTROL VALVE.............................................................................................................................. 2-24  
SCRUB DECK (46”) .......................................................................................................................................... 2-26  
SIDE SQUEEGEES (46”) .................................................................................................................................. 2-30  
REAR SQUEEGEE (46”) ................................................................................................................................... 2-32  
SCRUB DECK (53”) .......................................................................................................................................... 2-34  
SIDE SQUEEGEES (53”) .................................................................................................................................. 2-40  
REAR SQUEEGEE (53”) ................................................................................................................................... 2-42  
SQUEEGEE LIFT ............................................................................................................................................... 2-44  
SWING SQUEEGEE SUPPORT........................................................................................................................ 2-46  
SOLUTION TANK .............................................................................................................................................. 2-48  
SOLUTION FEED .............................................................................................................................................. 2-50  
American-Lincoln  
ATS 46/53 Battery  
1-3  
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TABLE OF CONTENTS  
RECOVERY TANK ............................................................................................................................................. 2-52  
RECOVERY DRAIN SYSTEM ............................................................................................................................ 2-56  
FRONT BUMPER .............................................................................................................................................. 2-57  
FRONT WHEELS .............................................................................................................................................. 2-58  
WHEEL WELL FLAP.......................................................................................................................................... 2-59  
REAR (DRIVE) WHEELASSEMBLY .................................................................................................................. 2-60  
BRAKE PEDAL/PARKING BRAKE ..................................................................................................................... 2-62  
ACCELERATOR/FLOOR PANELASSEMBLY .................................................................................................... 2-66  
FRAME ............................................................................................................................................................... 2-68  
SAFETYARM ...................................................................................................................................................... 2-69  
STEERING COLUMN ........................................................................................................................................ 2-70  
VAC FAN ............................................................................................................................................................ 2-72  
VAC MOTOR MANIFOLD ................................................................................................................................... 2-74  
FILTER SHAKER ............................................................................................................................................... 2-76  
SEATASSEMBLY ............................................................................................................................................... 2-78  
HYDRAULIC PUMPASSEMBLY ........................................................................................................................ 2-80  
MAIN BROOM HYDRAULICS ............................................................................................................................ 2-81  
SIDE BROOM HYDRAULICS ............................................................................................................................ 2-82  
HOPPER LIFT HYDRAULICS ........................................................................................................................... 2-83  
HOPPER DUMP DOOR HYDRAULICS ............................................................................................................ 2-84  
SCRUB DECK HYDRAULICS ........................................................................................................................... 2-85  
SCRUB DECK LIFT HYDRAULICS ................................................................................................................... 2-86  
SQUEEGEE LIFT HYDRAULICS ....................................................................................................................... 2-87  
HYDRAULIC RESERVOIR ................................................................................................................................ 2-88  
2-WAY HYDRAULIC VALVE ............................................................................................................................... 2-90  
DRIVE WHEEL HYDRAULICS .......................................................................................................................... 2-92  
VAC MOTOR HYDRAULICS .............................................................................................................................. 2-93  
VAC FAN HOPPER HYDRAULICS .................................................................................................................... 2-94  
STEERING 90º - 90º HYDRAULICS .................................................................................................................. 2-95  
COVERS ............................................................................................................................................................ 2-96  
INSTRUMENT PANELASSEMBLY .................................................................................................................... 2-98  
POWER PANEL #2 ............................................................................................................................................ 2-100  
DECALS ............................................................................................................................................................ 2-102  
CE KIT ............................................................................................................................................................... 2-105  
HYDRAULIC HOSE DIAGRAM ................................................................................................................................. 2-106  
HYDRAULIC SCHEMATIC ........................................................................................................................................ 2-108  
INSTRUMENT PANEL CONNECTION DRAWING ................................................................................................... 2-109  
MACHINE HARNESS ROUTING .............................................................................................................................. 2-110  
MACHINE HARNESS CONNECTION DIAGRAM...................................................................................................... 2-111  
POWER PANEL CONNECTION DIAGRAM .............................................................................................................. 2-112  
ELECTRICAL SCHEMATIC....................................................................................................................................... 2-113  
CHAPTER 3 OPTIONS .............................................................................................................................................. 3-1  
ROLL-OUT BATTERY (800AH) ................................................................................................................................ 3-2  
BRUSHES ................................................................................................................................................................ 3-4  
HOPPER THERMO-SENSOR SHUTDOWN ............................................................................................................ 3-6  
CLOGGED FILTER SENSOR ................................................................................................................................... 3-8  
REAR WORK LIGHT ................................................................................................................................................. 3-10  
OVERHEAD GUARD ................................................................................................................................................ 3-12  
AMBER SAFETY LIGHT WITH OVERHEAD GUARD ................................................................................................ 3-14  
AMBER SAFETY LIGHT WITHOUT OVERHEAD GUARD ........................................................................................ 3-16  
ESP/AUTOFIL ........................................................................................................................................................... 3-18  
ESP/AUTOFIL WIRING ............................................................................................................................................. 3-24  
ESP/AUTOFIL WIRING (CON’T) ............................................................................................................................... 3-26  
FIRE EXTINGUISHER .............................................................................................................................................. 3-28  
BACK-UPALARM ...................................................................................................................................................... 3-29  
SPRAY WAND ........................................................................................................................................................... 3-30  
RETRACTABLE SEATBELT ...................................................................................................................................... 3-34  
SUSPENSION SEAT ................................................................................................................................................. 3-35  
PAD DRIVER (16") .................................................................................................................................................... 3-36  
PAD DRIVER (18") .................................................................................................................................................... 3-37  
VACUUM WAND ....................................................................................................................................................... 3-38  
VAC HOSE SERVICE KIT ......................................................................................................................................... 3-39  
SPARE PARTS LISTS ............................................................................................................................................... 3-40  
1-4  
American-Lincoln  
ATS 46-53 Battery  
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SPECIFICATIONS  
CLEANING PATH  
Scrubbing  
46 Inches (116.84 cm) or 53” (134.62cm)  
60 Inches (152.40 cm)  
6 Inches (15.24 cm) Right Side 53 Inches  
(134.62 cm) Only  
Sweeping  
Edge Cleaning  
TRAVEL SPEED  
STEERING  
0 - 4.7 MPH  
Rack & Pinion 90°-90° Hydraulic Power Steering  
Adjustable Steering Column  
TURNING RADIUS  
Left  
74.5 Inches (189.23 cm)  
74.5 Inches (189.23 cm)  
110.0 Inches (279.40 cm)  
Right  
Aisle “U” Turn  
DIMENSIONS  
Length  
102.5 Inches (265.43 cm)  
55.0 Inches (132.08 cm)  
55.5 Inches (140.97 cm)  
78.75 Inches (197.49 cm)  
50.8 Inches (128.90 cm)  
Width  
Height  
Height w/ Overhead Guard  
Wheel Base  
WEIGHT  
Standard Machine  
2600 lbs. (1170.0 Kg) Less Battery  
TIRES  
Type  
Urethane (Front & Rear)  
Two (2) 16” (41cm) x 3.75” (8.26 cm)  
One (1) 16” (41 cm) x 4.00” (10.16 cm)  
Front  
Rear  
RAMP CLIMBING  
Sweeping  
3 Degrees  
8 Degrees  
Transporting  
MAIN BROOM  
One piece plastic core disposable type. Broom position can be set to “restricted down” or  
“free floating.”  
Length  
45 Inches (114 cm)  
14 Inches (35.6 cm)  
3.25 Inches (8.26 cm)  
Nylon (Herringbone)  
High Density Nylon  
Diameter  
Bristle Length  
Optional Bristle Type  
Proex and Wire  
Poly and Wire  
Main Broom Lift  
Main BroomArms  
Hard Linkage  
Patented (No-Tool Broom Change)  
SIDE BROOM  
Side Broom Size  
Side Broom Bracket  
Side Broom Lift  
21-inch (53.34 cm) Diameter  
Swing Away Shock Mount  
Cable  
INSTRUMENTS AND CONTROLS  
Main Broom Lever (Activates Immediately when lowered)  
Key Switch  
Headlight/Taillight Switch  
Squeegee Switch  
Combination Battery Condition & Hour Meter  
Side Broom Lever (Activates Immediately when lowered)  
Recovery High Light  
Scrub Deck Switch  
Hopper Temperature Light (OPTION)  
Solution Low Light  
Clogged Filter Light (OPTION)  
Solution Control  
Filter Shaker Switch  
Hopper Up/Down  
Dust Control Switch  
Dump Door Open/Closed  
Horn Button  
American-Lincoln  
ATS 46/53 Battery  
1-5  
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SPECIFICATIONS  
SCRUBBING SYSTEM  
Brush Size-46”  
Brush Size-53”  
Three (3) 16” (40.64 cm) Diameter Brushes  
Three (3) 17.88” (45.42 cm)  
Diameter Brushes  
Brush Drive  
Electric Motors, Off in Neutral  
(after 2-second delay)  
Brush Drive Lift  
Scrub Load  
Actuator  
Ground Clearance  
250 lbs. (112.50 Kg) or 400 lbs. (180.0 Kg)  
SQUEEGEE  
Vacuum/Squeegee  
Side Squeegees (2)  
Squeegee Lift  
55.5-inch (140.97 cm) Wide Swing, Gum Rubber Outer Blade  
Patented Configuration  
Actuator and Cable,Auto Lift in Reverse  
2-inch (5.08 cm) Diameter  
Squeegee Hose  
TANKS  
Solution Tank  
Recovery Tank  
Solution Metering  
70 Gallon (264.96 Liters) Polyethylene  
70 Gallon (264.96 Liters) Polyethylene  
Variable to 3.0 GPM  
HOPPER  
Capacity  
10 Cubic Feet (.2832 Cubic Meters), 700 lbs. (315 Kg)  
Variable Dump with Dump Door  
78 Sq. Ft. (72,464 Sq. Cm)  
Dump and Lift  
Filter  
Dump Height  
Reach Into Dumpster  
60 Inches (152.40 cm)  
11 Inches (27.94 cm)  
SYSTEM FLUID CAPACITIES  
Fuel Tank  
10.0 Gallons (37.95 Liters)  
4.0 Gallons (15.16 Liters)  
Hydraulic System  
OPTIONAL EQUIPMENT  
Seat Belt  
Back Up Alarm  
Work Light  
Headlight/Taillight Switch  
Overhead Guard  
Non-Marking Tires  
Clogged Filter  
Roll-Out Battery  
Fire Extinguisher  
Vacuum Wand  
Spray Wand  
Wet Sweep Bypass/Thermo-Sensor  
Amber Safety Light  
ESP & Autofil Recycling System  
Pad Drivers  
Scrub Brushes  
WARRANTY  
Our general conditions of business are applicable with regard to the guarantee. Subject to change as a  
result of technical advances. The guarantee is invalidated if the machine is not operated in accordance  
with these instructions or otherwise abused. The guarantee is invalidated if the machine is not serviced as  
described.  
R
MACHINE DATA  
MACHINE NAME  
DATE / SERIAL NUMBER  
MODEL  
RATED POWER  
WEIGHT  
IP X3  
MAX OPERATING SLOPE  
LWA  
B
1-6  
American-Lincoln  
ATS 46-53 Battery  
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MACHINE DIMENSIONS  
85.5“  
217.17 cm  
78.75“  
200.025 cm  
52“  
143.5 cm  
27.0“  
68.60 cm  
50.8“  
129.03 cm  
102.5“  
260.35 cm  
25.75“  
65.41 cm  
25.75“  
65.41 cm  
55.5“  
140.97 cm  
C1694d/0402  
American-Lincoln  
ATS 46/53 Battery  
1-7  
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STANDARD HARDWARE & TORQUE VALUES  
SAE - Grade 8  
SAE - Grade 5  
Type  
F & T  
& BT  
Grade  
5
Plated  
Screw  
Size  
Grade  
8
Plated  
Type  
B, AB  
Brass  
410H  
Stainless  
C
C
F
F
F
-
F
20  
35  
54  
132  
22  
39  
62  
95  
-
C
-
C
20  
18  
33  
47  
114  
19  
34  
55  
85  
-
5
9
23  
41  
*6  
*8  
14  
27  
21  
34  
15  
28  
43  
-
-
37  
49  
-
13  
32  
6
64  
156  
49  
120  
*10  
*1/4  
5/16  
3/8  
7/16  
1/2  
9/16  
5/8  
3/4  
7/8  
1
39  
86  
-
130  
22  
151  
24  
44  
70  
108  
155  
216  
378  
-
120  
108  
17  
31  
49  
76  
110  
153  
267  
-
15  
28  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
40  
63  
10  
16  
-
44  
68  
95  
138  
191  
338  
545  
818  
98  
-
135  
239  
387  
579  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
C = Coarse Thread  
F = Fine Thread  
* = Torque values for #6 through 1/4 are lb./in. All others are lb./ft.  
NOTE  
Decrease the torque by 20% when using thread lubricant  
The torque tolerance is on torque values.  
C2000/9905  
1-8  
American-Lincoln  
ATS 46-53 Battery  
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HYDRAULIC TORQUE REQUIREMENTS  
HYDRAULIC TORQUE REQUIREMENTS  
Refer to the following chart for torque values on all hydraulic hoses and fittings.  
Nominal  
SAE  
O-Ring Face Seal End  
SAE O-Ring Boss End  
Thread  
Size  
Swivel  
Nut  
Thread  
Size  
Str. Fitting  
Dash  
Size  
or Locknut  
Torque  
LB-FT  
Inch  
Torque  
LB-FT  
*
Inch  
-3  
-4  
*
3/8-24  
7-16-20  
1/2-20  
8-10  
9/16-18  
*
10-12  
*
14-16  
-5  
18-20  
-6  
11/16-16  
13/16-16  
1-14  
18-20  
32-35  
46-50  
65-70  
65-70  
92-100  
125-140  
150-165  
9/16-18  
3/4-16  
24-25  
-8  
50-60  
-10  
-12  
-14  
-16  
-20  
-24  
7/8-14  
72-80  
1 3/16-12  
1 3/16-12  
1 7-16-12  
1 11/16-12  
2-12  
1 1/16-12  
1 3/16-12  
1 5/16-12  
1 5/8-12  
1 7/8-12  
125-135  
160-180  
200-220  
210-280  
270-360  
* O-Ring face seal type end not defined for this tube size.  
NOTE  
Parts must be lightly oiled with hydraulic fluid.  
C-2002  
American-Lincoln  
ATS 46/53 Battery  
1-9  
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DECIMAL-METRIC CONVERSION TABLE  
DECIMAL-METRIC CONVERSION TABLE  
Fraction  
Decimal  
0.015625  
Millimeter  
0.3969  
Fraction  
Decimal  
0.515625  
Millimeter  
13.0969  
1
33  
64  
64  
1
0.03125  
0.7938  
17  
32  
0.53125  
13.4938  
32  
3
0.046875  
0.0625  
1.1906  
1.5875  
1.9844  
2.3813  
2.7781  
3.1750  
3.5719  
3.9688  
4.3656  
4.7625  
5.1594  
5.5563  
5.9531  
6.3500  
6.7469  
7.1438  
7.5406  
7.9375  
8.3344  
8.7313  
9.1281  
9.5250  
9.9219  
10.3188  
10.7156  
11.1125  
11.5094  
11.9063  
12.3031  
12.7000  
35  
64  
0.546875  
0.5625  
13.8906  
14.2875  
14.6844  
15.0813  
15.4781  
15.8750  
16.2719  
16.6688  
17.0656  
17.4625  
17.8594  
18.2563  
18.6531  
19.0500  
19.4469  
19.8438  
20.2406  
20.6375  
21.0344  
21.4313  
21.8281  
22.2250  
22.6219  
23.0188  
23.4156  
23.8125  
24.2094  
24.6063  
25.0031  
25.4000  
64  
1
9
16  
16  
5
0.078125  
0.09375  
0.109375  
0.125  
37  
64  
0.578125  
0.59375  
0.609375  
0.625  
64  
3
19  
32  
32  
7
39  
64  
64  
1
8
5
8
9
0.140625  
0.15625  
0.171875  
0.1875  
41  
64  
0.640625  
0.65625  
0.671875  
0.6875  
64  
5
21  
32  
32  
11  
64  
43  
64  
3
11  
16  
16  
13  
64  
0.203125  
0.21875  
0.234375  
0.25  
45  
64  
0.703125  
0.71875  
0.734375  
0.75  
7
23  
32  
32  
15  
64  
47  
64  
1
4
3
4
17  
64  
0.265625  
0.28125  
0.296875  
0.3125  
49  
64  
0.765625  
0.78125  
0.796875  
0.8125  
9
25  
32  
32  
19  
64  
51  
64  
5
13  
16  
16  
21  
64  
0.328125  
0.34375  
0.359375  
0.375  
53  
64  
0.828125  
0.84375  
0.859375  
0.875  
11  
32  
27  
32  
23  
64  
55  
64  
3
8
7
8
25  
64  
0.390625  
0.40625  
0.421875  
0.4375  
57  
64  
0.890625  
0.90625  
0.921875  
0.9375  
13  
32  
29  
32  
27  
64  
59  
64  
7
15  
16  
16  
29  
64  
0.453125  
0.46875  
0.484375  
0.5  
61  
64  
0.953125  
0.96875  
0.984375  
1.0000  
15  
32  
31  
32  
31  
64  
63  
64  
1
1
2
C-2001  
1-10  
American-Lincoln  
ATS 46-53 Battery  
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MACHINE PREPARATION  
C1694c  
FIGURE 1  
YOURATS 46/53 BATTERY MACHINE HAS BEEN SHIPPED COMPLETE, BUT DO NOTATTEMPTTO  
OPERATE WITHOUTFOLLOWING THESE INSTRUCTIONS.  
PREPARING THE MACHINE FOR OPERATION  
*Uncrate the machine and carefully remove from skid to prevent damage.  
*The ATS 46/53 machines that are shipped without batteries have the (+) positive drive motor lead  
disconected.  
*Open the battery compartment and connect the (+) positive motor lead to the top terminal post (the wire  
“P” is also attached to it). Tighten the terminal nut.  
*Install the scrub brushes.  
*Check the oil level in the hydraulic reservoir  
*Install batteries as follows (if not included):  
1. Turn the key to the “OFF” position.  
2. Raise the Solution Cover to the open position.  
3. Use a battery lifting device with a 2500 lbs. (1150 Kg) capacity hoist to lift the battery.  
4. Using the lifting device, lower the 36 volt battery into the battery compartment directly in front of the  
driver’s compartment. Orient the cables & plug them in as required.  
5. Plug the polarized connector from the battery into the 36-volt plug provided.  
WARNING  
Hydrogen gas is formed during the charging operation and is explosive! Only charge batteries in a well-venti-  
lated area with the lid open. Avoid any open flame or electrical sparks. Pulling out the charger plug with the  
timer on will cause an arc and must be avoided.  
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ATS 46/53 Battery  
1-11  
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SAFETY INSTRUCTIONS  
THE FOLLOWING STATEMENTSARE USED THROUGHOUT THIS MANUALAS INIDICATED IN THEIR  
DESCRIPTIONS:  
DANGER  
To warn of immediate hazards which will result in severe personal injury or death.  
WARNING  
To warn of hazards or unsafe practices which could result in severe personal injury or death.  
CAUTION  
To warn of hazards or unsafe practices which could result in minor personal injury.  
ATTENTION  
To warn of unsafe practices which could result in extensive equipment damage.  
NOTE  
To give important information or to warn of unsafe practices which could result in equipment damage.  
WARNING  
THE FOLLOWING INFORMATION SIGNALS POTENTIALLY DANGEROUS CONDITIONS TO THE OPERATOR OR  
EQUIPMENT. READ THIS MANUAL CAREFULLY. KNOW WHEN THESE CONDITIONS CAN EXIST. THEN, TAKE  
NECESSARY STEPS TO TRAIN MACHINE OPERATING PERSONNEL. FOR THE SAFE OPERATION OF THIS  
MACHINE, READAND UNDERSTANDALLWARNINGS, CAUTIONSAND NOTES.  
WARNING  
Machines can ignite flammable materials and vapors. Do not use with or near flammables such as gasoline,  
grain dust, solvents, and thinners.  
WARNING  
Heavy machinery. Improper use can cause personal injury.  
WARNING  
Operate only when lids, doors, and access panels are securely closed.  
WARNING  
Use care when reversing machine in confined area.  
WARNING  
When servicing the machine, disconnect the batteries first to prevent possible injury.  
WARNING  
When working on the machine, empty hopper, remove batteries, clear area of people and obstructions, use  
additional people and proper procedures when lifting the machine.  
WARNING  
Always empty the hopper and disconnect the battery before doing maintenance.  
WARNING  
You must have training in the operation of this machine before using it.  
READ THE INSTRUCTION BOOK.  
WARNING  
Do not operate this machine unless it is completely assembled.  
WARNING  
Do not use this machine as a step or furniture.  
1-12  
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SAFETY INSTRUCTIONS  
WARNING  
Stop and leave this machine on a level surface. When you stop the machine, put the power switch in the “OFF”  
position and engage the Wheel Lock.  
WARNING  
To prevent injury and damage to the machine, do not lift the machine  
or move it to an edge of a stair or loading dock.  
WARNING  
Lead acid batteries generate gases, which can cause an explosion. Keep sparks and flames away from batteries.  
NO SMOKING. Charge batteries only in areas with good ventilation.  
WARNING  
Always wear eye protection and protective clothing when working near batteries. Remove all jewelry. Do not put  
tools or other metal objects across the battery terminals or across the tops of batteries.  
WARNING  
Only authorized personnel should do maintenance and repairs. Tighten all fasteners. Maintain adjustments  
according to the specifications given in the service manual for the machine. Keep the electrical parts of the  
machine dry. For storage, keep the machine in a building.  
WARNING  
Make sure all labels, decals, warnings, cautions and instructions are fastened to the machine. Purchase new  
labels and decals from American-Lincoln.  
WARNING  
The operator must exhibit extreme caution when negotiating, turning, and traveling across grades or ramps.  
Start, stop, change direction, travel and brake smoothly. Slow down when turning.  
WARNING  
Avoid uneven surfaces and loose materials. Watch for obstructions, especially overhead.  
WARNING  
Operate only from the designated operator’s position. Stay inside the body of the machine. Keep hands and feet  
on the designated controls. Always operate in well-lighted areas.  
WARNING  
Do not carry passengers on the machine. Set the Wheel Lock when leaving the machine. Chock (block) the  
wheels if the machine is parked on a grade (ramp), or is being prepared for maintenance.  
WARNING  
Never leave the operator’s compartment when the machine is running.  
WARNING  
Report damage or faulty operation immediately. Do not operate the machine until repairs have been completed.  
Only authorized personnel should do maintenance and repairs.  
WARNING  
To maintain the stability of this machine in normal operation, the overhead guard, counterweights, rear bumper  
guard, or any similar equipment installed by the manufacturer, as original equipment should never be removed.  
If it becomes necessary to remove such equipment for repair or maintenance, this equipment must be reinstalled  
before the machine is placed back into operation.  
WARNING  
Electrical hazard. Shocks can cause serious personal injury. Unplug the battery before cleaning or servicing. To  
avoid possible injury or property damage, read the Operator’s Manual before servicing the machine. Authorized  
personnel should do maintenance and repairs.  
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SAFETY INSTRUCTIONS  
WARNING  
Disconnecting the battery connector with the key switch in the “I” position will cause sparks that could ignite  
explosive hydrogen gas generated by the batteries. To prevent serious injury or possible property damage, turn  
Key Switch to “O” position before disconnecting the battery cable from the machine for charging or service.  
FOR SAFETY, OBSERVE THE FOLLOWING WARNINGS. FAILURE TO COMPLY MAY CREATE A SERI-  
OUS RISK OF INJURY TO YOU AND OTHERS. THIS MACHINE SHOULD NOT BE USED IN HAZARDOUS  
LOCATIONS INCLUDINGAREAS OF VOLATILE DUST OR VAPOR CONCENTRATIONS.  
Operators must be trained and qualified to operate this machine. They must also understand the  
operator’s manual before starting.  
Use caution when mounting or dismounting the machine, particularly on wet/slippery surfaces.  
Do not dump the hopper over an open pit or dock. Do not dump the hopper when positioned on a  
grade (ramp). The machine must be level (horizontal).  
1-14  
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OPERATION OF CONTROLS AND GAUGES  
WET SWEEP  
BYPASS  
(Option)  
COMBINATION  
BATTERY CONDITION  
& HOUR METER  
LIGHT  
SWITCH  
WORK  
LIGHT  
(Option)  
WARNING  
BANK  
FILTER  
SHAKER  
SWITCH  
MAIN  
BROOM  
LEVER  
KEY  
SWITCH  
SCRUB  
DECK  
SWITCH  
SIDE  
BROOM  
LEVER  
SQUEEGEE  
SWITCH  
FWD/REV  
SWITCH  
+
-
HOPPER  
LEVER  
HOPPER  
DOOR  
LEVER  
CIRCUT BREAKERS  
CIRCUIT  
BREAKERS  
HORN  
BUTTON  
SIDE  
BROOM  
ADJUSTMENT  
SOLUTION  
CONTROL  
LEVER  
MAIN  
BROOM  
ADJUSTMENT  
FOOT  
PEDAL  
BRAKE  
PEDAL  
SEAT  
ADJUSTMENT  
PARKING  
BRAKE  
P5034b-1batt  
FIGURE 2  
LIGHT SWITCH (See Figure 2)  
The light switch is located on the instrument panel to the right of the battery condition/hour meter. It will work  
various light options available for this machine, such as:  
* HEAD LIGHTS  
*
*
TAIL LIGHTS  
INSTRUMENT LIGHTS  
HORN BUTTON (See Figure 2)  
The horn button is located on the left side control panel. Push the button to sound the horn. The horn button is  
always active.  
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OPERATION OF CONTROLS AND GAUGES  
KEY  
SWITCH  
KEY SWITCH (See Figure 3)  
The keyed ignition switch is located on the instrument  
panel to the left of the side broom lever. The key switch is  
a two-position switch that controls power to the machine  
systems and accessories. The “OFF” position (O position)  
will shut off the machine. The IGN/ON position (I position)  
provides power to the machine and all its systems and  
accessories.  
NOTE  
The operator should never leave the machine  
unattended while it is on.  
FORWARD/REVERSE SWITCH (See Figure 3)  
A two-position switch controls the machine’s direction and  
is located on the righthand side of the instrument panel  
directly below the key switch. Pushing the upper portion of  
the switch will provide forward motion when the foot pedal  
is pressed. Pushing the bottom portion of the switch will  
make the machine move in reverse when the foot pedal is  
pressed.  
FWD/REV  
SWITCH  
C1631A-batt  
FIGURE 3  
NOTE  
The machine will not move if:  
The operator is not seated properly in the operator’s  
compartment due to the Seat Switch Interlock safety  
feature; or if the foot pedal is depressed or depressed too  
quickly after turning the key switch on as a result of the High  
Pedal Disable safety feature. (See “MillipaK SEM Controller”)  
COMBINATION BATTERYCONDITION & HOUR METER  
(See Figure 4)  
The combination battery condition and hour meter is  
located on the instrument panel next to the warning bank.  
The meter is activated when the key switch is placed in the  
ignition position. The hour meter indicates the actual “run”  
time of the machine and can be used to determine ma-  
chine maintenance intervals.  
BATTERY  
HOUR CONDITION  
METER  
METER  
C1633-batt  
FIGURE 4  
The battery condition meter indicates the charge level of  
the batteries. The batteries are sufficiently charged if all  
the amber LEDs are illuminated during the machine’s  
operation.  
SEAT  
POSITION  
ADJUSTMENT  
LEVER  
If the LED on the far left displays red while using the  
machine, the low voltage lockout safety feature will shut  
down the scrub deck’s operation. The batteries must now  
be fully charged in order to reset the low voltage lockout  
and continue the cleaning operation.  
SEAT POSITION ADJUSTMENT (See Figure 5)  
The seat position adjustment lever is located on the right  
side of the seat base. The lever is spring loaded to the  
“LOCK” position.  
TO  
LOCK  
TO ADJUST  
To adjust the seat, push “FORWARD” on the lever and  
move the seat to the desired position. Then release the  
lever to “LOCK” the seat into place.  
C-0508a  
C0508A-2  
1-16  
FIGURE 5  
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OPERATION OF CONTROLS AND GAUGES  
FILTER SHAKER SWITCH (See Figure 6)  
The filter shaker switch is located on the instrument panel  
below the ignition switch. This is a momentary switch  
that will activate the filter shaker motors for 20 to 30  
seconds to clear the dust control filter. The Impeller fan  
will stop when the filter shaker has been activated. The  
filter shaker will only operate with the hopper in the  
“DOWN” position.  
Use the filter shaker to clear the filter when the dust  
control light comes on (warning bank) and just before  
dumping the hopper.  
FILTER  
SHAKER  
SWITCH  
MillipaK SEM CONTROLLER (See Figure 7)  
The controller is located in the seat compartment and  
includes a number of features designed to help the user  
track down operational faults, wiring faults or internal  
controller faults, including a flashing indicator light.  
C1640-2batt  
FIGURE 6  
The Flash Codes are:  
CONTROLLER  
ON  
OFF  
1 flash  
No fault, normal condition  
Internal controller fault  
Program Error  
2 flashes  
3 flashes  
4 flashes  
5 flashes  
6 flashes  
7 flashes  
8 flashes  
High Pedal Disable  
MOSFET Short Circuit  
Contactor fault or Motor Open Circuit  
Not used  
Accelerator wire off fault  
Low or High battery voltage  
Over temperature or timed cutback  
PUMP MOTOR  
PUMP  
HYDRAULIC PUMP (See Figure 7)  
The pump is located in the seat compartment and is  
powered by a 45 amp circuit breaker (on the power panel)  
and a contact linked with the key switch. It functions at  
1450 PSI and features 100 bar relief.  
FIGURE 7  
HOPPER SAFETY LOCK ARM (See Figure 8)  
The hopper safety arm is located near the right front wheel  
well. The safety arm will prevent the hopper from dropping  
unexpectedly during service/maintenance.  
HOPPER  
SAFETY ARM  
TO ENGAGE THE SAFETY ARM:  
1. Empty hopper  
2. Set the parking brake.  
3. Raise the hopper.  
4. Lift safety arm to engage the slot on the hopper  
frame.  
TO  
ENGAGE  
M
O
D
E
L
N
O
.
S
E
R
I
A
L
N
O
.
5. When work has been completed, return the  
safey arm to the stowed position.  
C1700  
WARNING  
When the hopper is raised the safety arm must be engaged  
before ANY work is done under the hopper.  
C1700  
American-Lincoln  
ATS 46/53 Battery  
FIGURE 8  
1-17  
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OPERATION OF CONTROLS AND GAUGES  
SIDE BROOM LEVER (See Figure 9)  
The Side Broom Lever is located to the right of the instru-  
ment console. The handle pulled back and turned to the  
left, will raise the side broom and lock it into position.  
SIDE  
BROOM  
LEVER  
To raise the side broom pull the lever back into the “UP”  
position.  
To lower the side broom, move the lever out of the “UP”  
position and move it forward to the “DOWN” position.  
SIDE  
BROOM  
ADJUSTMENT  
NOTE  
IF THE MAIN BROOM IS ENGAGED, THE SIDE BROOM WILL  
AUTOMATICALLYENGAGE WHEN LOWERED.  
SIDE BROOM ADJUSTMENT (See figure 9)  
The side broom lever has an adjustment for changing the  
sweep height to compensate for broom wear. The side  
broom adjustment is located under the right side of the  
instrument panel.  
C1641batt  
FIGURE 9  
MAIN BROOM LEVER (See figure 10)  
The main broom lever is located on the left side of the  
instrument panel. The main broom lever has three posi-  
tions and controls the main broom sweep height.  
To lower the main broom, grasp the lever and move it to  
the left out of the “UP” position, and place it in the  
“SWEEP” or “FLOAT” position.  
MAIN  
BROOM  
LEVER  
The “SWEEP” position is used for normal sweeping and  
should be used under most sweeping conditions (approxi-  
mately 2” broom pattern).  
The “FLOAT” position is used for sweeping very uneven  
surfaces only. Using the float position will cause premature  
wear on the main broom if used under normal operating  
conditions for extended periods of time (approximately 4”  
broom pattern).  
MAIN  
BROOM  
ADJUSTMENT  
CIRCUT BREAKERS  
NOTE  
The Main Broom will automatically engage when lowered to  
the sweep position or the float position. The hopper must be  
completely closed.  
MAIN BROOM ADJUSTMENT (See Figure 10)  
The main broom lever has an adjustment for changing the  
sweep height to compensate for broom wear. The main  
broom adjustment is located under the left side of the  
instrument panel.  
C1642-1batt  
1-18  
FIGURE 10  
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OPERATION OF CONTROLS AND GAUGES  
DUST CONTROL SWITCH (See Figure 11)  
The Dust Control Switch is a two position switch located on  
the instrument panel next to the filter shaker switch. The  
switch controls the vacuum fan in the dust control system.  
To turn on the dust control system for “NORMAL” sweeping,  
press on the top portion of the switch. To turn off the dust  
control system for sweeping in wet conditions, press the  
lower portion of the switch. This will prevent the filter from  
being damaged by water pickup while sweeping.  
DUST  
CONTROL  
SWITCH  
(Wet Sweep  
Bypass)  
C1640-1batt  
FIGURE 11  
SCRUB DECK SWITCH (See Figure 12)  
SCRUB DECK  
SWITCH  
The brushes switch is located on the console to the left of  
the steering wheel in the “SCRUBBING” section. This switch  
in the position marked “LOWER” will lower the scrub deck  
and activate the three scrub brushes. This switch in the  
“RAISE” position will stop the brushes from rotating and  
raise the scrub deck.  
NOTE  
Lowering the scrub deck will not start the brushes rotating.  
The machine must be moving to engage the scrub brushes. If  
the machine stops moving for 2 seconds or more, the  
brushes will automatically stop rotating until the machine  
starts moving again.  
CIRCUT BREAKERS  
C1642A-batt  
FIGURE 12  
SQUEEGEE SWITCH (See Figure 13)  
The squeegee blade switch is located on the console to the  
left of the steering wheel in the “SCRUBBING” section. This  
switch in the position marked “LOWER” will lower the  
squeegee and activate the squeegee vacuum. This switch in  
the “RAISE” position will stop the squeegee vacuum and  
raise the squeegee. If the machine is put in reverse, a  
switch is automatically activated to raise the squeegee if in  
the lowered position as well as stop the vacuum.  
SQUEEGEE  
SWITCH  
The switch has a center position which will raise the squee-  
gee but allows the vacuum to continue running, retrieving the  
water left in the squeegee recovery hose. This prevents  
water from dripping on the floor with the squeegee “UP.”  
CIRCUT BREAKERS  
C1642B -batt  
FIGURE 13  
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OPERATION OF CONTROLS AND GAUGES  
CIRCUT BREAKERS  
SOLUTION  
CONTROL  
C1716batt  
FIGURE 14  
SOLUTION CONTROL (See Figure 14)  
To apply solution to the scrub brushes, pull the solution control lever back until the desired setting is reached.  
The solution rate is continuously variable from off to approximately 1-3/4 GPM at low and 3 GPM at high. To  
stop application of solution push forward on the lever until it stops at the “off” position. The solution warning light  
will illuminate when the solution tank is low, marking the end of the scrubbing cycle.  
NOTE  
For best results, discontinue application of solution 10 feet before stopping or making a 90° or 180° turn.  
NON-RECYCLING OR STANDARD SCRUBBING SYSTEM  
1. Make sure the solution control lever is in the “off” (FORWARD) position.  
2. Open the solution tank cover (Vacuum Assembly)  
3. Fill the tank with 70 gallons of water and the correct mixture of American-Lincoln #100 Industrial  
Cleaner for the job on hand.  
4. Close the solution tank cover (Vacuum Assembly).  
RECYCLING OR ESP & AUTOFIL SYSTEM  
1. Make sure the solution control lever is in the “off” position.  
2. Connect hose to autofil coupling.  
3. Turn the key switch to the “ACC” position.  
4. Turn on the water hose valve.  
5. Fill the detergent tank with American-Lincoln #100 Industrial Cleaner.  
6. The system will fill the solution and recovery tank to proper levels and shut off the water flow.  
TO DISCONNECT WATER HOSE  
1. Leave ignition switch in the “on” position  
2. Turn the water off at the source  
3. “Tip” the float switch on the solution tank to depressurize the water hose before disconnecting  
WARNING  
To prevent oversudsing and machine damage, use only AMERICAN-LINCOLN Industrial Cleaner Solution #100.  
DO NOT put gasoline, combustible or flammable material in the solution, detergent, or recovery tanks.  
1-20  
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OPERATION OF CONTROLS AND GAUGES  
WARNING  
BANK  
RECOVERY  
HIGH  
LIGHT  
CHARGING SYSTEM  
LIGHT  
CLOGGED  
FILTER LIGHT  
SOLUTION  
LOW LIGHT  
HOPPER  
TEMP  
LIGHT  
C1636batt  
FIGURE 15  
WARNING BANK (See Figure 15)  
The Warning Bank is located on the instrument panel and provides the operator with fault/status indicators for  
engine and sweeper systems. The operator should monitor the indicators while sweeping. It is very important  
that the operator be familiar with the meaning of each indicator.  
CHARGING SYSTEM LIGHT  
The charging system light illuminates to indicate a charging system fault. When this occurs the  
machines charging system is not working properly, have the machine serviced by a qualified  
service technician.  
CLOGGED FILTER LIGHT (Option)  
The clogged filter light illuminates to indicate that the dust control filter is clogged. When this  
occurs, stop the machine and use the filter shaker to clear the dirt and debris from the filter. After  
using the filter shaker, continue sweeping.  
HOPPER TEMPERATURE LIGHT (Option)  
When the temperature of the air moving through the hopper dust control system exceeds 140° F,  
an automatic protection feature shuts down the dust control fan and illuminates the hopper tem-  
perature light. When this occurs, shut down the machine and carefully investigate for a possible fire  
in the hopper, then manually reset the switch.  
SOLUTION LOW LIGHT  
The solution low warning light will illuminate when the solution tank is empty, indicating the end of  
the scrubbing cycle.  
RECOVERY HIGH LIGHT  
The recovery high warning light will illuminate approximately 5 minutes before the recovery tank is  
full, giving ample time to complete the scrubbing cycle, before the mechanical float shuts off the  
vacuum to the recovery tank.  
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ATS 46/53 Battery  
1-21  
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OPERATION OF CONTROLS AND GAUGES  
PARKING  
BRAKE  
BRAKE  
FOOT PEDAL  
C1789batt  
FIGURE 18  
FOOT PEDAL (ACCELERATOR)  
The foot pedal, or accelerator, is located on the right side of the operator compartment floor. The foot pedal  
provides speed control only. To set the machine in motion, push the forward/reverse switch up or down (see  
figure 3), then push down on the foot pedal. Smoothly releasing the pedal will help slow the machine before  
breaking.  
BRAKE PEDAL  
The foot brake is located on the floor of the operator’s compartment to the left of the accelerator. To stop,  
remove foot from accelerator and apply pressure to the brake pedal.  
PARKING BRAKE  
The parking brake is located just above and slightly left ofthe foot brake. When engaged, the parking brake  
“locks” the foot brake in the down position.  
To engage the parking brake, press down on the parking brake pedal.  
To release the parking brake, press down on the regular brake pedal.  
1-22  
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OPERATION OF CONTROLS AND GAUGES  
HOPPER  
LEVER  
HOPPER  
DOOR  
LEVER  
C1717  
C1717  
FIGURE 19  
NOTE  
The main broom, side broom, dust control and filter shaker turn off automatically when the hopper is dumping and/  
or the dump door is in a closed position. SEE HOPPER LIFT and HOPPER DUMP DOOR.  
HOPPER LIFT LEVER - (See Figure 19)  
The hopper lift lever is located to the left of the steering wheel on the left side of the driver’s compartment. This  
lever, which is marked “HOPPER”, raises and lowers the debris hopper to ease unloading.  
WARNING  
The hopper may drop unexpectedly and cause injury, always engage the safety arm before working under the  
hopper.  
HOPPER DUMP DOOR LEVER - (See Figure 19)  
The hopper dump door lever is located to the left of the steering wheel on the left of the driver compartment.  
This lever opens and closes the hopper door. This lever is located below the hopper lift door and is marked  
“DUMP DOOR”.  
NOTE  
A switch triggered by the hopper and dump door’s position control the sweeping functions, main broom, side  
broom, dust control, and filter shaker. The hopper must be down and the dump door open to allow these to  
operate.  
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ATS 46/53 Battery  
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OPERATION OF CONTROLS AND GAUGES  
4-WAY FLASHER  
SWITCH  
TURN SIGNAL  
SWITCH  
+
-
LIG
TO SIGNAL  
RIGHT TURN  
TO TURN  
ON 4-WAY  
FLASHER  
TO SIGNAL  
LEFT TURN  
C1702batt  
FIGURE 20  
TURN SIGNAL - 4-Way (Option) (See Figure 20)  
The turn signal option is located on the steering column and works as automotive turn signals work, forward on  
the lever for right and back on the lever for left. The 4-way flasher will activate when the turn signal lever is pulled  
out.  
BACK-UP ALARM SWITCH (Option) (See Figure 20)  
The back-up alarm is activated by a switch that is located under the lower section of the accelerator pedal and  
the forward/reverse switch. The alarm makes a loud audible noise when the machine is being driven in reverse.  
1-24  
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OPERATION OF CONTROLS AND GAUGES  
FILTER PANEL LATCH (See Figure 21)  
LIFT  
FRAME TO  
REMOVE  
FILTER  
The filter panel is located in the hopper filter compartment  
and will need to be removed periodically for cleaning or  
replacement. Removal of the filter panel requires no tools.  
The hopper cover must be opened to gain access to the  
filter compartment. The panel filter is held in place by a  
hinged frame and latch.  
FILTER  
PANEL  
LATCH  
TURN LATCH  
TO RELEASE  
To remove the panel filter, turn the knob counterclockwise  
and lift the hinged frame.  
FILTER  
PANEL  
The panel filter can now be lifted out and cleaned or re-  
placed (see Filter Cleaning instructions in this manual).  
C-1719  
To install the replacement panel filter, lower the frame and  
turn the knob clockwise to lock the filter in place.  
C1719  
FIGURE 21  
HOPPER TEMP SENSOR (Option) (See Figure 22)  
The temp sensor switch monitors the hopper air tempera-  
ture near the vac fan. When the temperature of the air  
moving through the hopper exceeds 140°F, the switch is  
tripped. It turns off the dust control fan and illuminates the  
hopper temp light on the warning bank.  
RESET  
BUTTON  
HOPPER  
TEMP  
SENSOR  
The hopper temp sensor can be reset thermal switch which  
is located in the hopper filter compartment near the  
vacuum fan intake.  
PUSH  
TO  
RESET  
When the hopper temp light illuminates, carefully investi-  
gate for a possible fire in the hopper.  
C1718/9705  
To reset the temp sensor, press the reset button.  
C1718  
FIGURE 22  
FRONT COVER LATCH (See Figure 23)  
The front cover encloses the power source. The cover can  
be lifted to allow easy access for service and inspection.  
WARNING  
Operate Only When Lids, Doors, And Access Panels Are  
Securely Closed.  
PUSH  
To open the cover, lift the cover latch lever up and turn the  
latch ¼ turn. Lift the cover open.  
NOTE  
The overhead guard option has a safety latch for storing  
open cover.  
LIFT  
AND  
TURN  
After closing the cover, check it to be certain the latch has  
fully engaged and is latched.  
C1722-9706  
NOTE  
C1722  
FIGURE 23  
Side covers can be removed for service.  
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ATS 46/53 Battery  
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OPERATION OF CONTROLS AND GAUGES  
HYDRAULIC RESERVOIR LEVEL SIGHT GAUGE  
(See Figure 24)  
HYDRAULIC RESERVOIR  
LEVEL SIGHT GAUGE  
The sight gauge is located on the inside of the hydraulic  
reservoir in the engine compartment. The sight gauge is  
used to indicate the level of fluid in the reservoir. The fluid  
level must be visible in the sight gauge when the hopper is  
in the down position.  
MAIN BROOM COMPARTMENT DOORS (See Figure 25)  
The main broom compartment doors are located behind the  
front tires on both sides of the machine. The doors provide  
access to the main broom for service or inspection.  
WARNING  
Operate Only When Lids, Doors, And Access Panels Are  
Securely Closed.  
C1730  
FIGURE 24  
Open the right side door to remove or replace the main  
broom. The right side door is an integral part of the main  
broom drive system and must be closed for operation.  
Open the left side broom door for inspection. Check the  
drive hub for banding and shrink-wrap which have a  
tendency to get tangled in the broom driver. To open the  
main broom door, reach inside the hole in the door and lift  
up on the latch handle. The door latch will automatically  
engage when the door is closed.  
MAIN BROOM  
COMPARTMENT  
LATCH  
PULL UP  
TO OPEN  
NOTE  
Side squeegees mount on doors and the scrub deck must  
be lowered to slide the doors and squeegees into place.  
C0729A/9707  
NOTE  
For proper function of side squeegees, side squeegees must  
be positioned so the lift strap is above the scrub deck lift  
brackets. Damage to the side squeegees could occur if not  
in the correct position.  
C0729A  
FIGURE 25  
SEAT COMPARTMENT COVER & PROP LATCH  
(See Figure 26)  
The seat compartment cover opens to allow easy access to  
various components that will need to be inspected or  
serviced periodically. The cover opens forward and has a  
safety latch to hold the cover in the open position.  
On battery-powered machines, the compartment below the  
seat contains the hydraulic pump motor and reservoir.  
The seat compartment latch is located under the seat  
compartment cover and is used to hold the cover open.  
To hold the seat compartment cover open, lift the cover and  
rotate the latch.  
C1699a-batt  
C1699a-batt  
FIGURE 26  
1-26  
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OPERATION OF CONTROLS AND GAUGES  
HOPPER DOOR LEVER (See Figure 27)  
The hopper door lever is located on the operator’s com-  
partment and is used to close and open the hopper dump  
door. The lever is a two position hydraulic valve that is  
spring loaded to the center position which “HOLDS” the  
hopper door in position.  
To open the hopper dump door for sweeping or dumping,  
push the lever to the “OPEN” direction.  
HOPPER  
DOOR  
LEVER  
(Variable Dump  
Hopper Only)  
To close the hopper dump door for dumping or transport-  
ing, push the lever fully back in the “CLOSE” direction,  
and hold for 3 seconds or until you hear the door close.  
C1717A  
FIGURE 27  
HOPPER LIFT LEVER (See Figure 28)  
The hopper lift lever is located on the operator’s compart-  
ment console. The lever is a two position hydraulic valve  
that controls the operation of the hopper lift system. The  
lever is spring loaded to the center position which stops  
hopper movement and “HOLDS” the hopper at the present  
position.  
HOPPER  
LEVER  
To raise the hopper for dumping, move the lever to the  
“RAISE” position and hold until the hopper reaches the  
desired height, then release.  
WARNING  
The hopper may drop unexpectedly and cause injury,  
always engage the safety arm before working under the  
hopper.  
C1717B  
FIGURE 28  
To lower the hopper after dumping, move the lever to the  
“LOWER” position until the hopper is fully lowered and  
seated in the machine, then release.  
LIFT TO OPEN  
HOPPER FILTER COVER  
(See Figure 29)  
The hopper filter cover is actually the front cover or “hood”  
of the machine. It opens forward by releasing latches to  
access the filter compartment for service/inspection of the  
dust control filter and optional hopper temp sensor.  
Inspect gaskets daily. Replace any gaskets that show  
signs of deterioration. Failure to maintain the gaskets in  
serviceable condition will degrade dust control at the floor  
and will result in less than optimal sweeping performance.  
C1725A-batt  
FIGURE 29  
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ATS 46/53 Battery  
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ESP SYSTEM OPERATING INSTRUCTIONS  
ESP SYSTEM  
INSTRUMENT PANEL  
(OPTION)  
SOLUTION LEVEL  
WARNING LIGHT  
DETERGENT  
FLOW KNOB  
ON  
OFF  
RECYCLING SYSTEM  
ON/OFF SWITCH  
DETERGENT LOW  
WARNING LIGHT  
C1713/9705  
C1713  
FIGURE 30  
THE ESP RECYCLING CONTROL PANEL (See Figure 30)  
THE ESP RECYCLING SYSTEM ON/OFF SWITCH  
This switch turns the ESP recycling system on and off.  
NOTE  
The solution control lever must be on “FULL” for ESP operation.  
SOLUTION LEVEL WARNING LIGHT  
The solution level warning light will go out when the solution tank is empty. Some solution will remain in the  
recovery tank at the end.  
DETERGENT LOW WARNING LIGHT  
The detergent light will illuminate when the detergent tank is low, warning the operator to add detergent.  
DETERGENT FLOW KNOB  
This rotary knob controls the detergent flow into the scrubbing solution. The operator may choose from any  
detergent setting, for light to heavy cleaning applications. The detergent light will illuminate when the detergent  
tank is low, warning the operator to add detergent.  
1-28  
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ESP SYSTEM OPERATING INSTRUCTIONS  
NON - RECYCLING  
RECYCLING  
DETERGENT  
TANK  
SOLUTION  
TANK  
SOLUTION  
TANK  
RECOVERY  
TANK  
RECOVERY  
TANK  
C1728  
FIGURE 32  
THE SCRUBBING SYSTEM - HOW IT WORKS  
There are two scrubbing systems available for the ATS 46/53 machine, the non-recycling or standard scrubbing  
system and the recycling or ESP scrubbing system.  
THE NON-RECYCLING OR STANDARD SCRUBBING SYSTEM - HOW IT WORKS  
During the scrubbing process, detergent solution water from the solution tank is fed to the solution line. There  
it is fed to the floor where three disc scrubbing brushes work to dislodge soil.  
After scrubbing, the dirty solution is vacuumed from the floor and discharged into the containment chamber in  
the forward portion of the recovery tank, where a system of baffles helps to clarify the solution.  
Sensors in each tank will indicate, by lights on the control panel, when the water in the solution tank is too low  
or when the water in the recovery tank is too high.  
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ESP SYSTEM OPERATING INSTRUCTIONS  
THE RECOVERY OR ESP AND AUTOFIL SYSTEM - HOW IT WORKS  
During the scrubbing process, filtered water from the solution tank is fed to the solution line, where it combines  
with detergent from the metering pump. This mixture is then fed to the floor where three disc scrubbing brushes  
work to dislodge soil.  
After scrubbing, the dirty solution is vacuumed from the floor and discharged into the recovery tank. At inter-  
vals, a float switch activates the recycling pump, which sends filtered solution from the recovery tank to the  
solution tank. Detergent is added continuously to solution water from the flow valve.  
The autofil system distributes water from the supply hose into the recovery and solution tanks. Then a solenoid  
valve is closed when the proper level in the solution tank is reached.  
NOTE  
Both tanks must be drained and cleaned before filling.  
Tuck solution tank drain hose behind bumper during operation hose  
ORIFICE  
CHECK  
VALVE  
DETERGENT  
TANK  
SOLUTION  
TANK  
RECOVERY  
TANK  
SOLUTION  
PUMP  
FILTER  
AUTOFIL  
FILTER  
FLOW VALVE  
VALVE  
SEPARATOR  
DETERGENT  
PUMP  
FILL COUPLING  
SCRUB  
BRUSH  
SQUEEGEE  
P4759a  
FLOOR CONTACT  
P4759A  
1-30  
FIGURE 33  
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OPERATING INSTRUCTIONS  
SWEEPING AND DUST CONTROL SYSTEMS-HOW THEY WORK  
ATS 46/53 machines are equipped with a sweeping and dust control system. (See Figure 34)  
DUST CONTROL  
C1731  
FIGURE 34  
BEFORE STARTING THE MACHINE  
1. Set parking brake.  
2. Make sure all controls are in the “OFF” position.  
3. Be sure the directional control switch is in the center position.  
4. Ensure the batteries have been fully charged and serviced (see battery service instructions).  
NOTE  
Before starting the machine, perform the pre-start checklist.  
PRE-START CHECKLIST  
1. Check hydraulic fluid level.  
2. Check all systems for leaks.  
3. Check brakes and controls for proper operation.  
4. Check broom patterns.  
5. Check to ensure that all covers, panels and access doors are securely closed.  
STARTING BATTERY MACHINES  
Starting the battery powered models is accomplished by turning the key switch to the “I” (on) position. It is  
important to note that the batteries should be fully charged and serviced prior to using the machine.  
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OPERATING INSTRUCTIONS  
EMPTYING THE DEBRIS HOPPER  
1. Remove foot from accelerator and stop the machine.  
2. Engage the parking brake.  
3. Move the hopper dump door lever to the “CLOSE” position until the door is closed.  
4. Move the hopper lift lever to the “RAISE” position until the hopper reaches the desired height.  
5. Disengage the parking brake.  
6. Drive forward slowly with hopper raised to clear the refuse container before opening hopper dump door.  
7. Stop machine and engage the parking brake.  
8. Push the hopper dump door lever forward to the “OPEN” position. This will allow debris in the hopper to  
fall out into the refuse container.  
9. Move the hopper dump door lever to the “CLOSE” position until the door is closed.  
10. Release the parking brake.  
11. Drive slowly in reverse to clear the refuse container.  
12. Stop machine and engage the parking brake.  
13. Move the hopper lift lever forward to the “LOWER” position and hold until the hopper is closed.  
14. Move the hopper dump door lever to the “OPEN” position until the dump door opens.  
WARNING  
Do not turn off the machine with the hopper in the lifted position.  
NOTE  
After stopping the machine, perform these post-operation checks.  
POST-OPERATION CHECKLIST  
1. Clean the debris hopper.  
2. Check sweeping brooms for wear or damage.  
3. Check all flaps for wear, damage and adjustment.  
4. Check all systems for leaks.  
5. Charge and service motive power batteries (see battery charging instructions).  
6. Check squeegees for damage.  
BATTERY CHARGING INSTRUCTIONS  
Charge the batteries at the end of each day or when the battery condition meter indicates low battery voltage.  
The batteries need to be charged when the needle stays in the “red” zone while the machine is being operated.  
When charging the batteries, only use the quick disconnect provided to ensure correct polarity. Follow the  
instructions below.  
Check the liquid level in the batteries at least once a week and add water when low. Use only distilled water.  
Fill the batteries after charging them to prevent electrolyte from spilling over onto the tops of the batteries  
during the charging process.  
WARNING  
The use of an extension cord with the charger should be avoided. Risk of fire and electrical shock is possible if  
the wrong type or size extension cord is used. Locate all cords so they cannot be stepped on, tripped over, or  
otherwise subjected to damage or stress.  
STORAGE FOR BATTERY-POWERED MACHINES  
When batteries are not in use, they will discharge much sooner in cooler temperatures than in warm tempera-  
tures. Recharging and storing is more efficient at room temperature.  
Do not discharge the batteries excessively (do not go below 80%). Excessive discharge can cause polarity  
reversal of the individual cells in the battery. This will lead to complete failure of the batteries.  
Use a hydrometer to monitor the specific gravity of the individual cells in the batteries. When checking the  
specific gravity of the batteries, you should not see a large difference between the individual cells. The batteries  
may need to be replaced if the battery shows a significant difference of specific gravity between the cells.  
1-32  
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HELPFUL HINTS FOR CLEANING OPERATION  
SIDE AISLES  
MAIN AISLE  
P4134/0001  
SIDE AISLES  
P4134  
FIGURE 35  
WARNING  
Do not turn the steering wheel sharply when the machine is in motion. The machine is very responsive to  
movement of the steering wheel. Do not make sudden turns. Scrub in straight paths. Do not bump posts. Do  
not scrape the sides of the machine.  
When the machine is in motion, do not push the foot pedal all the way down. This will put a strain on drive  
system.  
1. Plan your sweeping and scrubbing in advance. Try to arrange long runs with minimum stopping and  
starting. Sweep debris from narrow aisles out into main aisles ahead of time. Do an entire floor or section  
at one time.  
2. Pick up oversize debris before sweeping.  
3. Allow a few inches of overlap of sweep and scrub paths. This will eliminate leaving dirty patches.  
4. Do not turn steering wheel too sharply when the machine is in motion. The machine is very responsive to  
movement of the steering wheel, so avoid sudden turns.  
5. Try to follow as straight a path as possible. Avoid bumping into posts or scraping the sides of the machine.  
6. When placing the machine in motion, avoid slamming the directional control pedal all the way forward  
quickly. This is equivalent to starting in “High” and puts needless strain on the engine and drive system.  
7. Always allow the machine to warm up before operating in cold temperatures.  
8. Periodically turn the sweeping broom end-over-end to prevent the bristles from “setting” in one direction.  
NOTE  
Replace the sweeping broom when the bristles are worn to 3 inch (8cm) length. Replace disc brushes when  
bristles are reduced to ½ inch (1.3 cm) in length. Replace squeegee rubbers when all usable edges have become  
rounded with wear.  
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SERVICE CHART  
SERVICE CHART  
Check items for proper operation. If service is required, please contact an authorizedAmerican-Lincoln dealer.  
For best performance, replace worn parts with genuineAmerican-Lincoln parts.  
EVERY 8 HOURS or DAILY operation check and clean/adjust if necessary:  
1. Inspect panel filters for damage and clean them.  
2. Check hydraulic fluid level.  
3. Check all flaps for wear or damage.  
4. Check brooms for wear or damage, adjust as required.  
5. Check panel filters (clean side) for leakage.  
6. Check brake pedal and parking brake.  
7. Check hydraulic oil filter.  
8. Check battery electrolyte level (unless maintenance-free battery).  
9. Check all fluid system components for leaks.  
50 HOUR (WEEKLY) MAINTENANCE CHECKLIST  
10. Check solution tank (recycling or ESP system).  
11. Check solution filter screen (recycling or ESP system).  
12. Check recovery tank.  
13. Check recovery tank screens and filters.  
14. Inspect scrub brushes for wear or damage.  
15. Inspect rear and side squeegees for wear or damage.  
16. Check battery electrolyte level (unless maintenance-free battery).  
17. Check all hydraulic hoses for wear or cuts.  
18. Rotate main brush (end-over-end).  
19. Clean or replace panel filters.  
20. Lubricate dump system and drive wheel pivot points.  
100 HOUR MAINTENANCE CHECKLIST  
21. Lubricate drive wheel, swivel wheel bearings, and steering rack guide.  
22. Lubricate front wheel bearings.  
23. Lubricate all moving joints.  
24. Check brake shoes for wear and adjust accordingly.  
25. Lubricate all 3 DANHOUSER bushings with NAPA#765-1363 or equivalent anti-seize lubricant. The  
bushings are located on the steering, scrub deck lift, squeegee lift, variable dump hopper door.  
250 HOUR MAINTENANCE CHECKLIST  
26. Lubricate squeegee casters.  
27. Clean solution tank and filter screen.  
28. Replace hydraulic filter element.  
400 HOUR MAINTENANCE CHECKLIST  
29. Clean hydraulic reservoir.  
30. Clean hydraulic intake strainer.  
31. Change hydraulic fluid.  
500 HOUR MAINTENANCE CHECKLIST  
32. Inspect brushes on pump and drive motors for wear. Replace as needed.  
33. Inspect drive system cables for wear.  
1-34  
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SERVICE CHART  
10,  
11,  
27  
13  
7, 8  
, 16  
12  
FRONT  
29  
30  
2, 31  
28  
1, 5  
20  
FRONT  
6
21  
22, 24  
4, 18  
14  
4
3, 15  
3, 15, 26  
Service chart-batt  
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SERVICE PRECAUTIONS  
SERVICE PRECAUTIONS  
For safety, read and follow the service precautions below. Know the hazards associated with the equipment you  
are working on to prevent personal injury or damage to equipment.  
Refer all Maintenance and Service Requirements to Qualified Maintenance Personnel.  
WARNING  
Do not attempt to Service this Machine until you have read and understand all Safety Warnings associated with the  
equipment you are working on.  
WARNING  
Only authorized personnel should do electrical repairs. Consult your American-Lincoln Authorized Distributor to  
perform service and/or repairs. Use only genuine American-Lincoln parts.  
WARNING  
Unexpected movement could cause injury. Always park on a level surface, turn key off, and engage parking brake  
before working on the machine.  
WARNING  
Always empty the hopper and disconnect the batteries before starting any maintenance work.  
Keep all fasteners tight. Keep adjustments within the specifications outlined for this machine.  
WARNING  
Always wear eye protection and protective clothing when working near batteries. Do not put tools or other metal  
objects across the tops of the batteries. NO SMOKING.  
WARNING  
The hopper could fall and cause serious injury.  
Always engage the hopper safety arm before working under the hopper.  
WARNING  
Pinch points may cause injury. Stay clear of moving parts.  
WARNING  
To maintain the stability of this machine in normal operation, the overhead guard or any similar equipment installed  
by the manufacturer as original equipment should not be removed. If it becomes necessary to remove such  
equipment for repair or maintenance, reinstalled before placing the machine back in operation.  
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SERVICE INSTRUCTIONS  
SWEEPING SYSTEM SERVICE  
MAIN BROOM  
To prevent the broom from “setting” in one direction and to provide the maximum life of the broom it is recom-  
mended that the broom be turned end over end periodically.  
CHECKING THE MAIN BROOM SWEEP PATTERN  
Check the main broom sweep pattern after changing the broom or when poor sweeping performance is encoun-  
tered while sweeping.  
1. While the machine is not moving, lower the main broom to the “SWEEP” position and let machine sweep in  
one spot for a short period of time.  
2. Before moving the machine, raise main broom lever to the “UP” position and move the sweeper forward  
enough to see the pattern left by the main broom bristles on the floor.  
3. Check the width of the pattern on the floor to determine if the main broom requires adjustment.  
-A normal sweep pattern left on the floor will be between 1 and 2 inches wide.  
-A pattern that is more than 2 inches wide indicates the broom linkage needs to be adjusted “UP.”  
-A pattern that is less than 1 inch wide indicates the broom linkage needs to be adjusted “DOWN.”  
ADJUSTING THE MAIN BROOM HEIGHT  
When changing the sweep height adjustment it is recommended that the bolt be adjusted 1 turn at a time. After  
adjustment, recheck the sweep pattern to determine if further adjustment is necessary.  
-Turn the adjustment knob counterclockwise to INCREASE the sweep pattern width.  
-Turn the adjustment knob clockwise to DECREASE the sweep pattern width.  
REPLACING THE MAIN BROOM  
The Main Broom should be replaced when the bristles become worn to less than 2". The main broom is held in  
place by the right side broom door. This feature provides for easy removal and installation of the main broom  
without the need for special tools or equipment. Follow the instructions below for main broom removal &  
replacement.  
1. Park sweeper on a smooth level surface, engage parking brake, turn key switch to “O”, place the main  
broom lever in the “SWEEP” position.  
2. Lift the door latch to open the right side broom door.  
3. Swing the broom drive idler hub out to clear the main broom.  
4. Remove the broom from the broom compartment.  
5. Install the replacement broom. Pay special attention to the slots on the broom, it may be necessary to  
rotate the broom so the tabs on the drive hub align with the slots on the broom.  
6. Swing the idler hub to engage the main broom and close the access door. Check the door latch for proper  
engagement when closed.  
7. Check the Main Broom sweep pattern and adjust as necessary.  
MAIN BROOM LEVEL ADJUSTMENT  
The main broom level is factory set and should not need adjustment. If the level becomes out of adjustment and  
the broom bristle contact pattern is not an even 1" to 2" wide, the broom arm lift frame will need to be adjusted.  
The frame is supported by two plates located inside the broom doors. The carriage bolts that secure the plates  
to the frame will need to be loosened. The frame can then be leveled and the bolts re-tightened.  
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SERVICE INSTRUCTIONS  
SIDE BROOM SERVICE  
LOCK PIN  
FLOOR  
CONTACT  
AREA  
10  
FORWARD  
3
C-0740  
SIDE  
BROOM  
C0740  
FIGURE 36  
SIDE BROOM  
The Side Broom sweeping angle is not adjustable. However, the height of the side brooms can be adjusted to  
compensate as the broom becomes worn from use. Always check and adjust the sweep pattern after changing  
the side broom.  
CHECKING THE SIDE BROOM SWEEP PATTERN  
ADJUSTING THE SIDE BROOM HEIGHT  
Turn the side broom adjustment knob to change the side broom sweep height. Recheck for proper sweep pattern  
after adjustment.  
-Turn the adjustment knob counterclockwise to INCREASE the sweep pattern width.  
-Turn the adjustment knob clockwise to DECREASE the sweep pattern width.  
SIDE BROOM SERVICE  
1. Park the machine on a smooth level surface.  
2. Place the side broom lever in the “DOWN” position.  
3. Move the brooms control lever to the “ON” position.  
4. While staying in place allow the side broom to sweep for a short period of time. (Allow enough time for the  
side brooms to leave a clean footprint on the floor).  
5. Place the side broom lever in the “UP” position.  
6. Move the brooms control lever to the “OFF” position.  
7. Back the sweeper away from the area where the pattern was left.  
8. Turn the key switch to the “OFF” position and engage the parking brake.  
9. Leave the operator’s compartment and check the pattern to determine the floor contact area.  
10. Determine if adjustment to the side brooms height is necessary by examining the floor contact area. The  
broom should contact the floor as shown in Figure 36. Adjust the side broom height if the contact area on  
the floor does not match the diagram.  
REPLACING THE SIDE BROOM  
Change the side brooms when the bristles become worn to less than 3 inches length.  
1. Park the machine on a smooth level surface, turn key switch to “O” Position and engage parking brake.  
2. Place the side brooms lever in the “UP” position.  
3. Remove the lock pin that holds the broom flange to the motor shaft.  
4. Disassemble the flange from the broom by removing the screws that hold the flange to the broom.  
5. Assemble the flange to the replacement broom and fasten using the hardware removed.  
6. Install the replacement broom on the shaft and insert the lockpin.  
1-38  
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SERVICE INSTRUCTIONS  
HOPPER SERVICE  
FILTER  
COMPARMENT  
DUST CONTROL  
FILTER  
C-0532  
c0532  
FIGURE 37  
WARNING  
The hopper could fall and cause serious injury.  
Always engage the hopper safety arm before working under the hopper.  
HOPPER  
The hopper houses the debris compartment, the dust control filter and the removable dust baffle. For maximum  
performance and service life, keep the hopper clean and inspect the seals and flaps daily.  
Clean the hopper prior to parking the sweeper at the end of the day. A clean hopper will make inspecting the  
flaps and seals much easier and will prevent premature deterioration of hopper components. Do not leave the  
hopper full of debris while in storage or when parked for extended periods of time.  
CLEANING THE HOPPER  
Once the hopper has been emptied the inside of the hopper should be rinsed out with water.  
CHECKING THE HOPPER SEALS  
The hopper seals are important to positive dust control while sweeping. Damaged seals will reduce vacuum  
pressure at the broom. Inspect for cuts, tears and proper positioning of the seal material. Replace all seals that  
become damaged.  
DUST CONTROL FILTER  
The dust control filter should be checked daily for damage and cleaned if necessary. A damaged filter must be  
replaced to prevent damage to other dust control system components. Inspect the filter for tears in the filter  
media or excessive dirt lodged in the pleats. A tear in the filter media will allow dirt to pass through the filter and  
can be easily seen as a dirty patch on the top side on the filter. Cleaning of the filter is necessary when the  
filter shaker fails to adequately clean the pleats.  
CHECKING THE DUST CONTROL FILTER  
1. Park the machine on a smooth level surface, turn the key switch to the “O” position and engage the  
parking brake.  
2. Raise the hopper lid for access to the filter compartment.  
3. Turn the filter latch, lift the filter frame and remove the filter.  
4. Inspect the panel filter for tears and clean or replace if necessary.  
5. Reinstall the filter, lower the filter frame and engage the filter latch.  
6. Close the hopper cover.  
CLEANING THE DUST CONTROL FILTER  
Clean the dust control filter when the shaker fails to adequately clear the filter. The filter can be cleaned with  
compressed air not to exceed 100 PSI. To clean the filter with compressed air, apply the compressed air to the  
topside of the panel to backflush the lodged dirt from the filter pleats. Be careful to not damage the filter media  
while cleaning. The filter can be cleaned with a solution of soap and water. If this cleaning method is used do  
not use the filter until it has completely dried.  
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ATS 46/53 Battery  
1-39  
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SERVICE INSTRUCTIONS  
1/16"  
SET DOOR FLAP  
EVEN WITH FLOOR  
P4488A  
FIGURE 38  
REPLACING THE DUST CONTROL FILTER  
Change the filter panel when damage is evident.  
1. Park the machine on a smooth level surface, turn the key switch to the “O” position and engage  
the parking brake.  
2. Open the hopper compartment cover to gain access to the filter compartment.  
3. Turn the latch on the hinged frame counterclockwise and lift the frame .  
4. Remove the filter panel.  
5. Install replacement filter, lower the hinged frame and engage the latch.  
6. Lower the filter compartment cover.  
DUST FLAPS  
The dust flaps are very important to sweeping and dust control and are susceptible to damage and should be  
inspected daily and maintained in good condition.  
CHECKING THE DUST FLAPS  
The dust flaps are used on the wheel well, broom chamber and broom door. Inspect the flaps daily and replace  
any flap that shows signs of wear or deterioration. All flaps should be replaced when worn or damaged to the  
point that they can no longer perform their normal function. The adjustable flaps have slotted mounting holes  
to facilitate adjustment.  
ADJUSTING THE DUST FLAPS  
Adjust the flaps so there is a 1/8" to 1/16" gap between the floor and the bottom edge of the flaps. The rear  
flap adjustment is 1/16" (16 cm.) above the floor.  
1. Park the machine on a smooth level surface and engage the parking brake.  
2. Loosen the flap retaining screws and adjust the flap to clear the floor and leave a 1/16" to 1/8" gap.  
3. Tighten flap-retaining screws while holding flap in position.  
4. Drive the machine on a smooth surface and recheck the flaps for proper floor clearance.  
1-40  
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SERVICE INSTRUCTIONS  
BRAKE SERVICE  
CABLE  
LH BRAKE LINK  
BRAKE PEDAL PIVOT  
PARKING BRAKE PEDAL  
CABLE  
JAM NUT  
PULL ROD  
BRAKE PEDAL  
BRAKE PEDAL LINK  
C1720batt  
FIGURE 39  
BRAKES  
The service brakes are located on the front wheels and are operated by the brake pedal and the parking brake.  
Check the brakes daily for proper operation and inspect the brake pads for wear every 100 hours of operation.  
ADJUSTING THE BRAKE PEDAL  
Perform this adjustment to ensure proper pedal height and linkage operation. The brakes are properly adjusted  
when the brakes hold the sweeper on an 8-degree ramp. The brakes need adjusted if the pedal travels closer  
than 1” to the floor of the operator’s compartment when the brakes are fully engaged.  
WARNING  
Always park on a level surface, chock tires and observe safety procedures when adjusting the brakes.  
ADJUSTING THE BRAKES  
When adjusting the brake clevis, follow these steps:  
1. Right hand brake cable slack.  
2. Adjust parking brake for maximum engagement.  
3. With parking brake “off,” check L.H. wheel which should rotate with minimum drag. (Not completely free)  
4. Adjust R.H. brake to provide minimum drag when released.  
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ATS 46/53 Battery  
1-41  
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GENERAL MACHINE MAINTENANCE  
FILL  
HYDRAULIC  
RESERVOIR  
FILLING THE HYDRAULIC RESERVOIR  
1. Access to the hydraulic reservoir is located in the  
seat compartment.  
2. Open the hydraulic reservoir breather filter cap.  
3. Remove any debris that is in the breather filter cap  
screen.  
4. Fill the reservoir until the fluid is at the “FULL” line on  
the hydraulic fluid sight gauge. The sight gauge is  
located on the center side of the hydraulic reservoir.  
5. Close the hydraulic reservoir breather filter cap.  
6. Close the seat compartment.  
C1691A  
FIGURE 40  
CLEANING THE HYDRAULIC SYSTEM  
1. Put a drop cloth on the floor.  
2. Drive the machine onto the drop cloth.  
3. Set the parking brake.  
4. Open the seat compartment.  
5. Put a container under the reservoir drain to catch the reservoir fluid.  
6. Remove the drain plug. The reservoir fluid will drain. Do not use the drained fluid to refill the hydraulic  
reservoir. Dispose of the used fluid.  
7. Flush the interior of the hydraulic reservoir with clean fluid.  
8. Put the reservoir plug (removed in Step 6) back in the hydraulic tank drain and tighten it. Apipe thread  
sealer is required on the plug.  
9. Open the breather filter cap.  
10. Fill the reservoir with new FORD type “F” automotive transmission fluid. The capacity of the tank is 10  
gallons. Fill to the “FULL” line on the hydraulic fluid sight gauge.  
11. Close the breather filter cap.  
12. Close the seat compartment.  
REPLACING THE RETURN FILTER ELEMENT  
COVER  
1. Replace the return filter element after 250  
hours of machine run time.  
SPRING  
2. Unscrew the fasteners from the filter  
O-RING  
assembly cover and retain.  
3. Remove the cover and the compression  
spring and retain.  
FILTER  
ELEMENT  
4. Discard the old filter element.  
5. Position the new filter element inside the  
filter body.  
FILTER  
BODY  
6. Put the compression spring in position.  
Wipe the cover magnet free of any metal filings  
or debris.  
7. Place O-ring (moisten with clean hydraulic  
fluid) and cover into position.  
8. Reattach fasteners to the filter cover.  
9.Clean any hydraulic reservoir fluid spills. The  
fluid can damage painted surfaces on the  
machine.  
P-5091/9907  
P5091  
1-42  
FIGURE 41  
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GENERAL MACHINE MAINTENANCE  
BRUSH  
LATCH  
C1747/9708  
C1747  
FIGURE 42  
REPLACING THE SCRUB BRUSH  
1. Raise the scrub brush deck by pressing the “Scrub Brush” switch on the instrument panel.  
2. Press the brush latches in to release the scrub brush.  
3. Remove the old scrub brush.  
4. Snap the new brush into place.  
COVERS AND LATCHES  
The covers have been designed to allow access, either by hinge or removal, to all areas of the machine. No  
maintenance is required.  
SOLUTION LOW WARNING LIGHT  
The solution low warning light will illuminate when the solution tank is low. This part of the level control system  
requires no maintenance. If the system fails to operate, consult the Electrical Troubleshooting Guide.  
RECOVERY HIGH WARNING LIGHT  
The recovery high warning will illuminate approximately 5 minutes before loss of vacuum to the recovery tank.  
This part of the level control system requires no maintenance, except for daily cleaning of the tank level switch.  
If the system fails to operate, consult the Electrical Troubleshooting Guide.  
SOLUTION CONTROL (Non-Recycling or Standard)  
The solution control lever controls the amount of solution applied to the scrubbing brushes.  
The solution control should shut off completely with the lever in the (front) “off” position. If complete shut off  
does not occur, the control valve should be adjusted.  
SOLUTION CONTROL (Recycling or ESP System)  
In the recycling mode, the solution control lever is also used to activate the detergent pump. If the detergent  
pump fails to operate (engine running) when the solution control lever is moved into the low to high range, first  
check the circuit by manually activating the switch. If the detergent pump does not operate at this time, a  
further electrical or mechanical check is required (see Electrical Troubleshooting Guide or Detergent Pump  
Troubleshooting).  
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1-43  
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GENERAL MACHINE MAINTENANCE  
RECYCLING PUMP ESP SYSTEM  
The recycling pump is located under the seat. The pump is electric and except for daily cleaning of the pump  
intake screens, it requires no regular maintenance.  
RECYCLING PUMP STORAGE  
Always drain pump for extended storage, especially when freezing temperatures may be encountered.  
REAR SQUEEGEE  
The squeegee will require service when the inner edges of the blades become round with wear, impairing the  
wiping action or water pickup. To service the rear squeegee use the following steps:  
1. Loosen the four aluminum knobs (item 10, these hold the squeegee tool to the squeegee support).  
2. Remove the squeegee tool and turn upside down to service the blades or caster wheels. The squeegee  
blades are designed to flip over and use another unworn edge (items 5 & 6).  
To service the blades  
1. Loosen the clamp bolts which clamp items 8 & 9 together.  
2. Loosen far enough to slip the end clamp brackets off the squeegee tool. This will allow flipping the blades  
or installing new blades.  
3. Install blades so that the outer blade is 3/16” longer than the inner blades. This is achieved by assembling  
the top edge of the blade against the squeegee tool weldment.  
4. Re-install the squeegee clamp band and tighten the clamp bolt.  
SQUEEGEE CASTER WHEELS  
There are 2 grease fittings on each caster wheel. The casters should be greased each time the blades are  
serviced.  
APPLY  
NEVERSEIZE  
10  
5
6
8
C1677-1/9705  
9
C1677-1  
FIGURE 43  
ADJUSTING CASTERS  
Lower the squeegee on a flat surface, making sure the rear squeegee blade is perpendicular to the surface.  
Adjust the caster 3/16” above the flat surface. Lock the jam nuts.  
1-44  
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GENERAL MACHINE MAINTENANCE  
BATTERY  
The battery is located in front of the operator’s compartment with easy access through the hopper door.  
Keep the top of the battery clean and dry. Keep the terminals and connectors clean. To clean the top of the  
battery, use a damp cloth with a weak solution of ammonia or bicarbonate of soda. To clean the terminals and  
connectors, use a terminal and connector-cleaning tool.  
WARNING  
NEVER allow the soda solution to enter the cells.  
This will permanently destroy the battery’s recharging capabilities.  
BATTERY  
COVER  
OPEN  
C1737batt  
C1737batt  
FIGURE 50  
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1-45  
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PARTS LIST LEGEND  
ABBREVIATIONS - SCREWS  
= Adjusting Screw  
ADJ  
= Adjusting Plunger Screw  
= Binding Head Machine Screw  
= Button Head Socket Screw  
= Captivated Slotted Screw  
= Captivated Wing Screw  
= Flat Head Machine Screw  
= Filister Head Machine Screw  
= Hexagon Head Cap Screw  
= Hexagon Head Machine Screw  
= 1/2 High Head Screw  
ADJ.SP  
BHM  
BHS  
CAPT.SL  
CAPT.WG  
FHM  
FIL.HM  
HHC  
HHM  
HIHD  
HSHC  
HSFHC  
KNH  
= Hexagonal Socket Head Cap Screw  
= Hexagonal Socket Flat Head Cap Screw  
= Knurled Head Screw  
= Metric Hexagon Head Cap Screw  
= Pan Head Machine Screw  
= Round Head Drive Screw  
= Round Head Machine Screw  
= Round Head Wood Screw  
= Shiny Crown Cap Screw  
= Shoulder Thumb Screw  
= Square Head Screw  
MHHC  
PHM  
RHD  
RHM  
RHW  
SHC  
SHTB  
SQ  
= Thumb Screw  
TB  
= Truss Head Machine Screw  
= Weld Stud  
THM  
WELD  
WG  
= Wing Screw  
ABBREVIATIONS - SETSCREWS  
= Hexagonal Socket Setscrew  
= Slotted Setscrew  
HS  
S
= Square Head Setscrew  
= Knurled Cup Point Setscrew  
= Cup Point Setscrew  
SH  
-KCP  
-CP  
-OP  
-FDP  
-HDP  
-FP  
= Oval Point Setscrew  
= Full Dog Point Setscrew  
= Half Dog Point Setscrew  
= Flat Point Setscrew  
= Cone Point Setscrew  
-COP  
C-2004  
1-46  
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GENERAL TROUBLESHOOTING  
PROBABLE CAUSE REMEDY  
PROBLEM  
1. Dump door open  
2. Hopper is raised  
3. Hopper switch out of adjustment  
1. Close dump door.  
2. Lower hopper  
3. Adjust hopper switch  
Sweeping Does Not  
Function.  
1. Side or rear squeegee are worn or  
damaged.  
1. Examine squeegee rubber  
blade for cuts or worn spots.  
Replace if necessary.  
2. Clogging in water pick-up.  
2. Repair or replace hose and  
connections.  
Poor Water Pick-Up At  
Squeegee.  
3. Air leaks in suction hose and  
connection  
3. Repair or replace gaskets.  
4. Air leaks at recovery tank cover  
and/or manifold gaskets.  
5. Poor vacuum  
4. Check vacuum motor.  
5. Check seal on recovery tank.  
6. Drain hose or drain plug leakage or 6. Close, repair or replace drain  
not closed properly.  
plug in recovery tank.  
1. Side squeegee blades, poor  
contact with floor.  
1. Readjust blades for proper  
contact.  
2. Squeegee blades worn or  
damaged.  
3. Too much solution being applied  
before making turns.  
2. Replace and adjust  
Water Spills From  
Squeegee.  
3. Shut off solution flow 5 to 10  
feet.  
4. Brushes rotating opposite direction. 4. Check position of switches  
1. Clogged suction hose or pick-up  
tool.  
1. Disconnect suction hose from  
squeegee, flush squeegee &  
hoses thoroughly.  
2. Loose connections between suction 2. Check all hose connections  
hose & squeegee or between hoses  
of manifold inlet.  
for looseness or damage.  
3. Vacuum motor not operating.  
3. Check hydraulic motor in  
recovery.  
Lack Of Suction At Rear.  
4. Vacuum float cage clogged.  
5. Vacuum float shut off  
4. Clean perforated metal  
thoroughly.  
5. Excessive solution in  
recovery drain tank.  
Excessive foam build up,  
change cleaning chemical  
mixture. Use A-L approved  
materials.  
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1-47  
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GENERAL TROUBLESHOOTING  
PROBLEM  
PROBABLE CAUSE  
REMEDY  
1. Worn scrubbing brushes  
1. Inspect brushes. If they are worn  
to ½" (1.3 cm) or less, replace  
all 3 brushes  
2. Incorrect method of operation  
2. Check scrubbing procedures,  
brush pressure, type of brush  
solution flow & cleaning  
chemical used. For extreme  
conditions double scrubbing  
may be necessary.  
Poor Scrubbing  
3. Wrong cleaning agent or mixture  
4. Poor solution distribution  
3. Use A-L recommended materials  
4. Clean out distribution tube &  
metering holes to brushes.  
Checks feed hose & clean if  
necessary. Check valve & cable  
control system.  
1. Foot pedal and/or linkage jammed  
or not adjusted.  
1. Check pedal linkage  
Machine Runs,  
2. Front wheels jammed or brakes  
locked  
3. Hydraulic pump trouble.  
2. Check wheels & brakes  
But Will Not Move  
3. Check & repair pump, check tow  
valve.
on Level Ground  
4. Rear wheel hydraulic motor, broken 4.
h
e
c
k
&
r
e
p
a
i
o
r
r
ep  
lace.  
shaft key, broken shaft etc.  
1. Low hydraulic oil level  
2. Brake dragging  
1. Add oil to the reservoir  
2. Check brakes  
Machine Moves  
Slowly  
3. Hydraulic oil temperature too high  
3. Check oil level. Add SAE 5 ATF if  
required  
4. Worn hydraulic pump or drive motor 4.
C
h
ec  
k
&
r
e
pa  
i
r
orreplace.  
1. Clogged inlet strainer or suction line 1. Clean inlet strainer line. Drain &  
flush reservoir if oil is dirty. Refill  
Hydraulic Pump  
Making Excessive  
Noise  
with clean SAE 5 ATF.  
2. Air bubbles in hydraulic fluid  
2. Check for low hydraulic fluid level,  
leaking fitting or hoses  
Check & repair or replace.  
3. Hydraulic pump is worn or damaged 3.
1-48  
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ATS 46-53 Battery  
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ORDERING PARTS  
INTERNET  
ALTO HEADQUARTERS  
Incentive International A/S  
Kongens Nytorv 28  
FRANCE  
ALTO France S.A.  
SLOVENIA  
Wap ALTO cistilni sistemi, d.o.o.  
Letaliska 33  
SLO-1110 Ljubljana  
Tel.: +368 15 20 62 00  
Fax: +368 15 20 62 10  
B.P. 44, 4 Place d’Ostwald  
67036 Strasbourg Cedex 2  
Tel.: +33 3 88 28 84 00  
Fax: +33 3 88 30 05 00  
P.O. Box 2064  
1013 Copenhagen K  
Tel.: +45 72 18 10 00  
Fax: +45 72 18 11 64  
GERMANY  
SLOWAKIA  
AUSTRIA  
ALTO Österreich GmbH  
Metzgerstr. 68  
5101 Bergheim/Salzburg  
Tel.: +43 6624 5 64 00-14  
Fax: +43 6624 5 64 00-55  
ALTO Deutschland GmbH  
Guido-Oberdorfer-StraBe 2-8  
89287 Bellenberg  
Tel.: +49 0180 5 37 37 37  
Fax: +49 0180 5 37 37 38  
Wap ALTO cistiace systémy s.r.o.  
Remeselnicka 42  
83106 Bratslavia-Raca  
Tel.: +421 2 44 881 402  
Fax: +421 2 44 881 395  
GREAT BRITAIN  
CROATIA  
Wap ALTO Strojevi za ciscenje, d.o.o.  
Siget 18a  
ALTO Cleaning Systems  
(UK) Ltd.  
Bowerbank Way  
Gilwilly Industrial Estate, Penrith  
Cumbria CA11 9BN  
Tel.: +44 1 7 68 86 89 95  
Fax: +44 1 7 68 86 47 13  
SPAIN  
ALTO Iberica S.L.  
Calle de la Majada No. 4  
28760 Tres Cantos - Madrid  
Tel.: +34 91 8 04 62 56  
Fax: +34 91 8 04 64 63  
10020 Zagreb  
Tel.: +385 1 65 54 144  
Fax: +385 1 65 54 112  
CZECH REPUBLIC  
SWEDEN  
NETHERLANDS  
ALTO Nederland B.V.  
Postbus 65  
3370 AB Hardinxveld-Giessendam  
Tel.: +31 18 46 77 20 0  
Fax: +31 18 46 77 20 1  
ALTO SverigeAB  
Aminogatan 18  
431 04 Mölndal  
Tel.: +46 3 17 06 73 00  
Fax: +46 3 17 06 73 41  
ALTO Ceská Republika s.r.o.  
Zateckych 9  
14000 Praha 4  
Tel.: +420 2 41 40 84 19  
Fax: +420 2 41 40 84 39  
NORWAY  
DENMARK  
ALTO Danmark A/S  
Industrikvarteret  
ALTO NorgeA/S  
Bjørnerudveien 24  
1266 Oslo  
Tel.: +47 22 75 17 70  
Fax: +47 22 75 17 71  
9560 Hadsund  
Tel.: +45 7218 21 00  
Fax: +45 7218 21 05  
1. Use the model number, catalog number, and serial number when ordering.  
2. Give the part number, description, and quantity of parts needed.  
3. Give shipping instructions for either freight, UPS, or parcel post.  
American-Lincoln  
ATS 46/53 Battery  
1-49  
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