612058–E
OPERATOR’S MANUAL
RELEASED: 8–15–95
IPP/PSE
INCLUDING:ĂSERVICE KITS, GENERAL DESCRIPTION & TROUBLESHOOTING
ALSOINCLUDEMANUALS:6641X-XAIRMOTORMANUAL,FORM3637-2GENERALINĆ
FORMATION SHEET.
3” AIR MOTOR
5:1 RATIO
2 1/4” STROKE
612058–E
PUMP
READ THIS MANUAL CAREFULLY BEFORE INSTALLING,
OPERATING OR SERVICING THIS EQUIPMENT
.
SERVICE KITS
Air Inlet
2608
Connect
• Use only genuine AROR replacement parts to assure compatible
pressure rating and longest service life.
66419
Air Motor
• 637066-B for repair of Air Motor section.
GENERAL DESCRIPTION
1/2 NPT
Mat’l Outlet
This model is designed for high volume delivery of low viscosity fluids
such as motor oil, gear oil or transmission fluids. Material dispensing
accessories and supply lines and fittings must be capable of withstandĆ
ing pressures developed by pump.
Lower Pump
FIGURE 1
25 5/16
(643 mm)
• The ARO 5:1 ratio basic pump assembly consists of a 3" air motor
and ball check lower pump end.
• The ball check design provides for easy priming of the lower foot
valve. Material is delivered to the pump discharge outlet on both
the up and down stroke.
15 11
(398.4
RATIO x REGULATEDAIRPRESSURETO AIR MOTOR=MAXIMUMFLUID
PRESSURE.
• The 5:1 ratio is an expression of the relationship between the air
motor area and the lower pump end area. When 150 p.s.i. (10 bar)
air pressure is supplied to the air motor, the lower pump end will
develop a maximum of 786 p.s.i. (54 bar) fluid pressure (at no flow)
- as the fluid control is opened, the flow rate will increase as the air
motor cycle rate increases to keep up with the demand.
1 1/2 NPT
Mat’l Inlet
INCLUDED BUT NOT
SHOWN: 210 COUPLER
F022
OPERATING AND SAFETY PRECAUTIONS
•
•
HEED ALL WARNINGS.
•
•
•
Donotoperatepumpcontinuouslyatspeedsinexcessof75cyclesperminĆ
ute.
DO NOT EXCEED MAXIMUM WORKING PRESSURE OF 786 PSI (54
BAR) AT 150 PSI (10 BAR) AIR INLET PRESSURE.
Disconnectair line from pump air motor when system sits idle for long periĆ
ods of time.
WARNING : HIGH PRESSURE DEVICE. Improper usage of
this equipment could result in serious injury. The possibility
of injection into the flesh is a potential hazard. Never allow any
part of the human body to come in front of or in direct contact
with the material outlet. An injection injury can be serious. If
injection should occur, contact a qualified physician immediĆ
ately for treatment.
Materialsandsolventsbeingpumpedbythispumpmustbecompatiblewith
the parts of this pump that come in contact with the material and solvent.
WARNING : PREVENT STATIC SPARKING. If static sparking
occurs, fire or explosion could result. Pump, dispensing
valve and containers must be grounded when handling inĆ
flammable fluids such as petroleum products, paints, lacĆ
quers, etc. and wherever discharge of static electricity is a
hazard.
•
•
COMPONENTRUPTURE.Thispumpiscapableofproducinghighmaterial
pressure as stated on pump model plate.
•
Usegroundedhoses(staticwire)andbesuretheobjectisgroundedifitcan
produce a static charge.
Be sure material hoses and other components are able to withstand fluid
pressures developed by this pump.
THE ARO CORPORATION D ONE ARO CENTER
E1995 THE ARO CORPORATION D PRINTED IN U.S.A.
D
BRYAN, OHIO 43506–0151
&
(419) 636–4242
D
FAX (419) 636–2115
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LOWER PUMP
PARTS LIST
66419
ITEM Description
1 Seal
Qty Part No.
1
1
1
1
1
1
1
1
1
93992
90123
90120
90125
76506
Y23-191
75678
Y16-32
2 Washer
2
3
3 Spring
4 Washer
-5 Tube
4
6 Set Screw
7 Follower
8 Ball (1" DIA.)
1/2" NPT
5
6
9 Cup Packing
10 Washer
1
1
1
1
1
1
1
1
75680
75682
Air Motor
Piston Rod
11 Seat
75681
7
8
12 Pin
83009
13 ``O" Ring (1 7/8" OD)
14 Ball (1 1/4" DIA)
15 Seat
Y325-223
Y16-240
77006
9
16 Coupling
Y43-48-C
10
11
. TORQUE REQUIREMENTS ,
NOTE: DO NOT OVERTIGHTEN
Items (5) and (15) 60-70 Ft.-lbs. Item (11) 65-70 Ft.-lbs.
LUBRICATION / SEALANTS
Apply Parker O-LubeR to all O-rings, & matĆ
ing parts.
12
13
PUMP ASSEMBL
Y
14
15
Assemble with new service parts.
1. Install (14) ball and (12) pin into (15) seat. Screw (15) seat onto (5)
tube and tighten.
2. Vise air motor base assembly and replace (2) washer, (3) spring
and (4) washer.
16
3. Screw (6) set screw into air motor piston rod. Screw (7) follower
onto (6) set screw. Replace (8) ball into (7) follower.
4. Place (10) washer and (9) cup packing onto (11) seat and (9) cup
packing onto (11) seat and screw this assembly into (7) follower.
5. Slide (5) tube over (7) follower assembly and (9) cup packing.
NOTE: Care must be used when sliding (5) tube over (9) cup packĆ
ing.Be careful not to damage (9) cup packing.
1 1/2" NPT
6. Screw (5) tube into air motor base assembly.
F023
FIGURE 2
Parker O-LUBER is a registered trademark of Parker Hannifin Corporation.
-``Smart Parts" Keep these items on hand in addition to the Service Kits for fast repair and reduction of down time.
612058-E
PAGE 3 of 4
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TROUBLE SHOOTING
No Material. (Stalled Pump.)
Material on one stroke only. (Fast Upstroke.)
• Obstructed Material Line. Disconnect air supply. Relieve all fluid
• Item (9) cup packing is worn. Remove the cup packing. Replace
pressure in pump. Remove Obstruction in system.
cup packing.
No Material (Pump Continually Cycles.)
Material on one stroke only. (Fast Downstroke.)
• Empty material supply. Shut down system. Replenish material
• Item (14) ball in (15) seat is not properly seating. Remove the seat.
Clean and inspect ball and seat. If either is damaged. replace with
new parts.
supply.
P/N97999-662
612058-E
Page 4 of 4
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