Troy Bilt 494 User Manual

OPERATOR’S MANUAL  
Chipper Shredder  
Model 494  
IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY  
Warning: This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest-  
covered, brush-covered or grass-covered land unless the engine’s exhaust system is equipped with a spark arrester meeting  
applicable local or state laws (if any). If a spark arrester is used, it should be maintained in effective working order by the operator.  
In the State of California the above is required by law (Section 4442 of the California Public Resources Code). Other states may have  
similar laws. Federal laws apply on federal lands. A spark arrester for the muffler is available through your nearest engine authorized  
service dealer or contact the service department, P.O. Box 361131 Cleveland, Ohio 44136-0019.  
TROY-BILT LLC P.O. BOX 361131 CLEVELAND, OHIO 44136-0019  
PRINTED IN U.S.A.  
769-00167A
FORM NO.  
(9/2002)  
SECTION 1: IMPORTANT SAFE OPERATION PRACTICES  
WARNING: This symbol points out important safety instructions which, if not followed, could  
endanger the personal safety and/or property of yourself and others. Read and follow all instructions in  
this manual before attempting to operate this machine. Failure to comply with these instructions may  
result in personal injury. When you see this symbol - heed its warning.  
WARNING: The Engine Exhaust from this product contains chemicals known to the  
State of California to cause cancer, birth defects or other reproductive harm.  
DANGER: This machine was built to be operated according to the rules for safe operation in this  
manual. As with any type of power equipment, carelessness or error on the part of the operator can  
result in serious injury. This machine is capable of amputating hands and feet and throwing objects.  
Failure to observe the following safety instructions could result in serious injury or death.  
2. Always wear safety glasses or safety goggles  
Training  
during operation or while performing an adjustment  
1. Read, understand, and follow all instructions on the  
or repair, to protect eyes. Thrown objects which  
machine and in the manual(s) before attempting to  
ricochet can cause serious injury to the eyes.  
assemble and operate. Keep this manual in a safe  
3. Wear sturdy, rough-soled work shoes and close-  
place for future and regular reference and for  
ordering replacement parts.  
2. Be familiar with all controls and their proper  
fitting slacks and shirts. Loose fitting clothes or  
jewelry can be caught in movable parts. Never  
operate this machine in bare feet or sandals. Wear  
operation. Know how to stop the machine and  
leather work gloves when feeding material in the  
disengage them quickly.  
chipper chute.  
3. Never allow children under 16 years old to operate  
4. Before starting, check all bolts and screws for  
this machine. Children 16 years old and over  
should read and understand the operation  
instructions and safety rules in this manual and  
should be trained and supervised by a parent.  
proper tightness to be sure the machine is in safe  
working condition. Also, visually inspect machine  
for any damage at frequent intervals.  
5. Maintain or replace safety and instructions labels,  
as necessary.  
6. To avoid personal injury or property damage use  
4. Never allow adults to operate this machine without  
proper instruction.  
5. Keep bystanders, helpers, pets, and children at  
least 75 feet from the machine while it is in  
operation. Stop machine if anyone enters the area.  
6. Never run an engine indoors or in a poorly  
ventilated area. Engine exhaust contains carbon  
monoxide, an odorless and deadly gas.  
7. Do not put hands and feet near rotating parts or in  
extreme care in handling gasoline. Gasoline is  
extremely flammable and the vapors are explosive.  
Serious personal injury can occur when gasoline is  
spilled on yourself or your clothes which can ignite.  
Wash your skin and change clothes immediately.  
a. Use only an approved gasoline container.  
b. Extinguish all cigarettes, cigars, pipes, and  
the feeding chambers and discharge opening.  
other sources of ignition.  
Contact with the rotating impeller can amputate  
fingers, hands, and feet.  
c. Never fuel machine indoors.  
d. Never remove gas cap or add fuel while the  
8. Never attempt to unclog either the feed intake or  
engine is hot or running.  
discharge opening, remove or empty bag, or  
e. Allow engine to cool at least two minutes  
inspect and repair the machine while the engine is  
before refueling.  
running. Shut the engine off and wait until all  
f. Never over fill fuel tank. Fill tank to no more  
moving parts have come to a complete stop.  
than 1/2 inch below bottom of filler neck to  
Disconnect the spark plug wire and ground it  
against the engine.  
provide space for fuel expansion.  
g. Replace gasoline cap and tighten securely.  
h. If gasoline is spilled, wipe it off the engine  
Preparation  
and equipment. Move machine to another  
area. Wait 5 minutes before starting the  
engine.  
1. Thoroughly inspect the area where the equipment  
is to be used. Remove all rocks, bottles, cans, or  
other foreign objects which could be picked up or  
thrown and cause personal injury or damage to the  
machine.  
i. Never store the machine or fuel container  
inside where there is an open flame, spark,  
or pilot light (e.g. furnace, water heater,  
space heater, clothes dryer, etc.)  
3
j. To reduce a fire hazard, keep machine free  
of grass, leaves, or other debris build-up.  
Clean up oil or fuel spillage and remove any  
fuel soaked debris.  
k. Allow machine to cool at least 5 minutes  
before storing.  
bag while the engine is running.  
10. Keep all guards, deflectors and safety devices in  
place and operating properly.  
11. Keep your face and body back and to the side of  
the chipper chute while feeding material into the  
machine to avoid accidental kickback injuries.  
12. Never operate this machine without good visibility  
or light.  
13. Do not operate this machine on a paved, gravel or  
non-level surface.  
14. Do not operate this machine while under the  
influence of alcohol or drugs.  
Operation  
1. Do not put hands and feet near rotating parts or in  
the feeding chambers and discharge opening.  
Contact with the rotating impeller can amputate  
fingers, hands, and feet.  
15. Muffler and engine become hot and can cause a  
burn. Do not touch.  
16. Never pick up or carry machine while the engine is  
running.  
2. Before starting the machine, make sure the chipper  
chute, feed intake, and cutting chamber are empty  
and free of all debris.  
3. Thoroughly inspect all material to be shredded and  
remove any metal, rocks, bottles, cans, or other  
foreign objects which could cause personal injury  
or damage to the machine.  
4. If it becomes necessary to push material through  
the shredder hopper, use a small diameter stick. Do  
not use your hands or feet.  
5. If the impeller strikes a foreign object or if your  
machine should start making an unusual noise or  
vibration, immediately shut the engine off. Allow the  
impeller to come to a complete stop. Disconnect  
the spark plug wire, ground it against the engine  
and perform the following steps:  
Maintenance And Storage  
1. Never tamper with safety devices. Check their  
proper operation regularly.  
2. Check bolts and screws for proper tightness at  
frequent intervals to keep the machine in safe  
working condition. Also, visually inspect machine  
for any damage and repair, if needed.  
3. Before cleaning, repairing, or inspecting, stop the  
engine and make certain the impeller and all  
moving parts have stopped. Disconnect the spark  
plug wire and ground it against the engine to  
prevent unintended starting.  
a. Inspect for damage.  
b. Repair or replace any damaged parts.  
c. Check for any loose parts and tighten to  
assure continued safe operation.  
4. Do not change the engine governor settings or  
overspeed the engine. The governor controls the  
maximum safe operating speed of the engine.  
5. Maintain or replace safety and instruction labels, as  
necessary.  
6. Follow this manual for safe loading, unloading,  
transporting, and storage of this machine.  
7. Never store the machine or fuel container inside  
where there is an open flame, spark or pilot light  
such as a water heater, furnace, clothes dryer, etc.  
8. Always refer to the operators manual for proper  
instructions on off-season storage.  
6. Do not allow an accumulation of processed  
material to build up in the discharge area. This can  
prevent proper discharge and result in kickback of  
material through the feed opening.  
7. Do not attempt to shred or chip material larger than  
specified on the machine or in this manual.  
Personal injury or machine damage could result.  
8. Never attempt to unclog either the feed intake or  
discharge opening while the engine is running.  
Shut the engine off, wait until all moving parts have  
stopped, disconnect the spark plug wire and  
ground it against the engine before clearing debris.  
9. Never operate without the shredder hopper,  
chipper chute, or discharge chute properly attached  
to the machine. Never empty or change discharge  
9. If the fuel tank has to be drained, do this outdoors.  
10. Observe proper disposal laws and regulations for  
gas, oil, etc. to protect the environment.  
-
4
Your Responsibility  
Restrict the use of this power machine to persons who read, understand and follow the warnings and instructions in  
this manual and on the machine. Not all safety labels shown may apply to your chipper shredder.  
SECTION 2: ASSEMBLING YOUR CHIPPER SHREDDER  
IMPORTANT: This unit is shipped without gasoline or oil  
Disconnecting Spark Plug Wire  
in the engine. Be certain to service engine with gasoline  
Before setting up your chipper shredder, disconnect the  
and oil as instructed in the separate engine manual  
spark plug wire from the spark plug and ground against  
before operating your machine.  
the engine.  
NOTE: Reference to right or left hand side of the  
chipper shredder is observed from the operating  
position.  
Hopper  
Assembly  
Removing Unit From Carton  
Remove staples, break glue on top flaps, or cut  
tape at carton end and peel along top flap to open  
carton.  
Remove loose parts if included with unit (i.e.,  
operators manual, etc.)  
Cut along corners, lay carton down flat, and remove  
packing material.  
Roll or slide unit out of carton and check carton  
thoroughly for loose parts.  
Discharge  
Chute  
Tamper  
Plug  
Loose Parts In Carton (See Figure 1)  
Hopper Assembly  
Discharge Chute  
Chipper  
Chute  
Chipper Chute  
Bag (Not Shown)  
Tamper Plug (If Equipped)  
Figure 1  
5
other end of the rod has to be attached to the stop  
washer on the inlet guide.  
Raise the hopper till it clicks into position.  
Unscrew the shoulder bolt from the stop washer on  
the inlet guide. See Figure 3.  
Align the loose end of the flap control rod with the  
stop washer on the inlet guide. See Figure 3.  
Slide the shoulder bolt through the opening in the  
flap control rod. See Figure 3. Secure tightly.  
Attaching the Hopper Assembly  
Remove the 8-3/8long hex bolt and the hex nut  
from the bottom of the inlet guide opening. See  
Figure 2.  
Place the hopper assembly on the ground and hold  
it in the position.  
Holding the hopper, push hopper pivot door down  
inside the hopper.  
Slide the hopper assembly towards the chipper-  
shredder housing so that the upper guide on the  
hopper assembly slides under the stop washer on  
each side of the inlet guide.  
WARNING: This flap control rod is a safety  
device to hold the flap in place inside the  
hopper while shredding branches. Do not  
operate the chipper-shredder without  
properly attaching this flap control rod to  
the unit.  
Align the two holes (one on each side) of the lower  
hopper with the two holes (one on each side) of the  
inlet guide.  
Insert the hex bolt (that you earlier removed) from  
the left through the hole on the hopper and the inlet  
guide. Insert the hex nut onto the bolt from the other  
side.  
Bolt  
Hex Nut*  
Stop Washer*  
Tighten the bolt till the lock nut is engaged. Make  
sure to remove any side play from the bolt, but the  
hopper should be able to pivot.  
Hopper  
Inlet Guide Opening  
Hex Bolt  
Hopper Pivot Door  
Flap Control Rod  
Hopper  
Stop Washer  
Hole  
NOTE: This part is  
already assembled.  
Hex Nut  
* Do not remove this hardware from the inlet guide  
assembly while attaching the flap control rod.  
Figure 3  
Attaching the Discharge Chute  
Remove the wing knobs from each side of the  
discharge opening on the chipper shredder.  
See Figure 4.  
Inlet  
Guide  
Using two 7/16" wrenches, remove hex lock nut,  
two spacers, and hex bolt from top of the housing  
assembly. For easy assembly, do not remove the  
second spacer from the hex bolt.  
Place the discharge chute in position on the  
discharge opening. Insert hex bolt and spacer  
through hinge on discharge chute and housing  
(spacer fits inside of hinge).  
Hopper  
Figure 2  
To raise the hopper, hold the hopper by the hand-  
hold and lift it up till it clicks into position.  
To lower the hopper, hold the hopper by the hand-  
hold and pull the release bar. The hopper should  
drop down.  
Place second spacer over hex bolt inside the other  
part of the hinge. Secure with hex lock nut and  
tighten securely. See Figure 4.  
The flap control rod is already attached to the  
hopper at the top, as indicated in Figure 3. The  
6
Secure both sides of discharge chute to housing  
using wing knobs that you earlier removed. Tighten  
wing knobs.  
Align the holes towards the front opening of the  
chute with the holes on the brace. See Figure 5.  
Insert one each of the hex bolts, lock nuts, and flat  
washers (that you earlier removed) through each  
hole in the chute and the brace. Tighten these bolts  
to secure brace to the chute.  
Tighten bolts securing the brace to the lower frame.  
These bolts had been removed earlier.  
Tighten the three nuts on the weld studs.  
Hex Lock Nut  
Spacer  
Hex Bolt  
Cupped Washer  
Chipper  
Chute  
Weld Studs  
Wing Knob  
Discharge Chute  
Figure 4  
Hex Bolt  
Attaching the Chipper Chute  
Your unit is shipped with one end of the brace  
already secured to the lower frame. Loosen the  
bolts securing the brace to the frame.  
Flat  
Washer  
Remove the three cupped washers and hex nuts  
from the weld studs beside the opening on the left  
side of the housing. See Figure 5.  
Remove the two sets of hex bolt, lock nut, and flat  
washer from the two holes on the upper end of the  
brace.  
Place the chipper chute over the weld studs so the  
slot on the chute is towards the bottom. Align the  
three holes at the bottom of the chute with the three  
weld studs.  
Hex Nuts  
Discharge  
Brace  
Chute  
Figure 5  
Attaching the Bag  
To attach the bag, place the opening of the bag  
completely over the discharge chute.  
Depress the plunger on the drawstring and pull on  
the drawstring until the bag is tight around chute  
opening. Release plunger to lock it into position.  
Secure with the three pairs of cupped washers and  
hex nuts that you earlier removed. Do not tighten  
the nuts at this time. Make sure to place the cupped  
side of the washer against the chipper chute.  
SECTION 3: KNOW YOUR CHIPPER SHREDDER  
Read this operators manual and safety rules before  
operating your chipper shredder. Compare the  
illustrations in Figure 6 with your unit to familiarize  
yourself with the location of various controls and  
adjustments. Save this manual for future reference.  
Hopper Assembly  
Allow leaves and small branches up to 1diameter to  
be fed into the impeller for chipping and shredding.  
Material can be raked into hopper assembly by  
lowering the hopper assembly. See Figure 6.  
Starter Handle  
The starter handle is located on the engine. Pull the  
starter handle to start engine. See Figure 6.  
Bag (Not shown)  
Collects shredded or chipped material fed through the  
chipper chute or hopper assembly.  
Release Rod  
Tamper Plug (If equipped)  
The release rod is located on the impeller bracket  
assembly and it is used to release or lock the hopper  
when raising or lowering. See Figure 6.  
The tamper plug is designed to insert in the chipper  
chute to push material toward the impeller.  
See Figure 6.  
Chipper Chute  
Engine Controls  
See the separate engine manual for the location and  
function of the controls on the engine.  
Allow twigs and small branches up to 3in diameter to  
be fed into the impeller for chipping. See Figure 6.  
7
Disconnect spark plug wire from spark plug and  
ground against the engine.  
Stopping Engine  
Move throttle control lever to stop or off position.  
Chipper  
Chute  
Tamper Plug  
Discharge  
Chute  
Hopper  
Assembly  
Release  
Rod  
Rear Wheel  
Lock Lever  
Starter Handle  
Figure 6  
SECTION 4: OPERATING YOUR CHIPPER SHREDDER  
WARNING: The operation of any chipper  
shredder can result in foreign objects  
being thrown into the eyes, which can  
damage your eyes severely. Always wear  
the safety glasses provided with this unit  
or eye shields before chipping or shred-  
Engines with primer:  
Prime engine as instructed in separate engine  
manual.  
The throttle control lever is located on the engine.  
Move engine throttle control lever to FAST or  
START position.  
Grasp starter handle and pull rope out slowly until  
engine reaches start of compression cycle (rope  
will pull slightly harder at this point).  
ding  
and  
while  
performing  
any  
adjustments or repairs.  
Gas and Oil Fill-Up  
NOTE: A noise will be heard when finding the start of  
the compression cycle. This noise is caused by the fails  
and fingers, which are part of the shredding mecha-  
nism, and it should be expected until the impeller  
reaches full speed.  
Service the engine with gasoline and oil as instructed in  
the separate engine manual packed with your chipper  
shredder. Read instructions carefully.  
WARNING: Never fill fuel tank indoors with  
engine running or until the engine has  
been allowed to cool for at least two  
minutes after running.  
Pull rope with a rapid, continuous, full arm stroke.  
Keep a firm grip on starter handle. Let rope rewind  
slowly.  
Repeat the previous steps until engine fires. When  
engine starts, move choke control (if equipped)  
gradually to RUN position.  
Starting Engine  
Attach spark plug wire to spark plug. Make certain  
the metal cap on the end of the spark plug is  
fastened securely over the metal tip on the spark  
plug.  
WARNING: Never run the engine indoors  
or in a poorly ventilated area. Engine  
exhaust contains carbon monoxide, an  
odorless and deadly gas.  
Engines with choke lever:  
Move choke lever on engine to CHOKE position. (A  
warm engine may not require choking).  
8
To Empty Bag  
Using the Chipper Shredder  
Depress the plunger on the drawstring and slide the  
plunger out to loosen bag from discharge chute  
opening.  
Yard waste such as leaves and pine needles can be  
raked up through the hopper assembly for shredding.  
After material has been shredded by the flail blades on  
the impeller assembly, it will be discharged out of  
opening or into catcher bag. Do not attempt to shred or  
chip any material other than vegetation found in a  
normal yard (i.e. branches, leaves, twigs, etc.) Avoid  
fibrous plants such as tomato vines until they are  
thoroughly dried out. Twigs and small branches up to 3”  
in diameter can be fed into the chipper chute. If  
equipped, use the tamper plug to push material into the  
chipper chute. Refer to Figure 6.  
Empty bag and reattach to the discharge chute  
opening. Depress the plunger on the drawstring  
and pull on the drawstring until the bag is tight  
around the chute opening.  
Lowering the Hopper Assembly  
With one hand grasp the handle at the top of the  
hopper assembly and lift slightly.  
With the other hand pull out on the release rod and  
lower the hopper assembly to the ground.  
See Figure 7.  
IMPORTANT: The flail screen is located inside the  
housing in the discharge area. If the flail screen  
becomes clogged, remove and clean as instructed in  
SECTION 5: MAINTAINING YOUR CHIPPER  
SHREDDER. For best performance, it is also important  
to keep the chipper blade sharp.  
Hopper  
Assembly  
Release  
Rod  
Figure 7  
SECTION 5: MAINTAINING YOUR CHIPPER SHREDDER  
Customer Responsibilities  
MAINTENANCE  
SCHEDULE  
SERVICE  
DATES  
Lubricate Release Bracket  
Lubricate Hopper Assembly  
Lubricate Discharge Chute  
Check Chipper Blade  
Check Oil  
Change Oil  
Clean Air Filter  
Clean Engine  
Check Spark Plug  
9
WARNING: Always stop engine, discon-  
nect spark plug, and ground against  
engine before cleaning, lubricating or  
doing any kind of maintenance on your  
machine.  
Discharge  
Chute  
Lubrication  
Release Rod: Lubricate the release rod and spring with  
light oil once a season.  
Hopper Assembly: Lubricate the pivot points on the  
hopper assembly with light oil once a season.  
Hairpin  
Clips  
Discharge Chute: Lubricate the pivot points on the  
chute deflector with light oil once a season.  
Wing Knobs  
Engine: Follow the separate engine manual packed  
with you unit for lubrication instructions.  
Figure 8  
Maintenance  
Engine  
Chipper Blades  
Refer to the separate engine manual for all engine  
maintenance instructions.  
Disconnect the spark plug wire and ground against  
the engine.  
Check engine oil level before each use as  
instructed in the separate engine manual packed  
with your unit. Read and follow instructions  
carefully.  
Clean air cleaner every 25 hours under normal  
conditions or once a season. Clean every few hours  
under extremely dusty conditions. To service the air  
cleaner, refer to the separate engine manual  
packed with your unit.  
Remove the flail screen as instructed in the  
previous section.  
Remove the chipper chute by removing three hex  
nuts and washers.  
Remove the chipper chute support brace from the  
frame by removing the hex bolts.  
Rotate the impeller assembly by hand until you  
locate one of the two chipper blades in the chipper  
chute opening.  
The spark plug should be cleaned and the gap  
reset once a season. Check engine manual for  
correct plug type and gap specifications.  
Remove the blade using a 3/16allen wrench on  
the outside of the blade and an adjustable wrench  
on the impeller assembly. See Figure 9.  
Removing the Flail Screen  
If the discharge area becomes clogged, remove the flail  
screen and clean area as follows:  
Stop the engine and make certain the chipper  
shredder has come to a complete stop.  
Disconnect spark plug wire from spark plug and  
ground against the engine.  
Remove the two wing knobs on each side of the  
discharge chute and lift the discharge chute up to  
keep it out of the way. See Figure 8.  
Remove the two hairpin clips from each clevis pin  
which extend through the housing and remove the  
pins.  
Flat Screw  
Blade  
Remove the flail screen from inside the housing  
and clean the screen by scraping or washing with  
water.  
Figure 9  
Reinstall the screen, making certain to reassemble  
the flail screen with the curve side down.  
Reattach the discharge chute with the hardware  
previously removed and connect the bag (if  
equipped) to unit.  
Rotate the impeller to expose other blade and  
remove in the same manner.  
Replace or sharpen blades.  
When sharpening the blade, protect hands by using  
gloves and follow the original angle of grind. Also,  
10  
make sure to remove an equal amount from each  
blade and torque to 250 - 300 in. lbs.  
that each cutting edge receives an equal amount of  
grinding to prevent an unbalanced blade.  
NOTE: Make certain blades are reassembled with the  
sharp edge facing upward.  
Discharge Chute  
Blade  
Shredder Blade  
Weld Stud  
Disconnect the spark plug wire and ground against  
the engine.  
Lower the hopper assembly and block up the  
housing.  
Remove the six hex lock nuts and flat washers from  
the weld studs on the flail housing.  
Separate the hopper assembly from the impeller  
assembly and remove the support plate.  
Flat Screw  
Hex Bolt  
NOTE: When reassembling the support plate, the  
embossed tab must face inward towards the impeller.  
Remove the two wing knobs and cupped washers  
that secure the discharge chute and raise the  
chute.  
Insert a 1/2or 3/4diameter pipe through the flail  
screen into the impeller to keep it from turning or  
remove the flail screen and insert a piece of wood  
into the chute opening.  
Remove the two outside screws on the blade, using  
a 3/16allen wrench and a 1/2wrench.  
See Figure 10.  
Remove the blade by removing the center bolt, lock  
washer, and flat washer.  
Figure 10  
An unbalanced blade will cause excessive vibration  
when rotating at high speeds and may cause  
damage to the unit. The blade can be tested by  
balancing it on a screwdriver or nail. Remove metal  
from the heavy side until it is balanced evenly.  
When reassembling the blade, tighten center bolt to  
between 550 and 700 in.-lbs. and the two out bolts  
to between 250 and 350 in.-lbs.  
Storing Your Chipper Shredder  
Clean the equipment thoroughly.  
NOTE: Use caution when removing the blade to avoid  
contacting the weld studs on the housing.  
Wipe equipment with an oiled rag to prevent rust.  
Refer to engine manual for correct engine storage  
instructions  
Store unit in a clean, dry area. Do not store next to  
corrosive materials such as fertilizer.  
When sharpening the blade, follow the original  
angle of grind as a guide. It is extremely important  
11  
SECTION 6: TROUBLESHOOTING  
Problem  
Cause  
Remedy  
Engine fails to start  
1. Spark plug wire disconnected.  
2. Fuel tank empty or stale fuel.  
3. Throttle control lever not in correct  
starting position. (If Equipped)  
4. Choke not in CHOKE position.  
(If equipped)  
1. Connect wire to spark plug.  
2. Fill tank with clean, fresh gasoline.  
3. Move throttle lever to FAST position.  
4. Move choke to CHOKE position.  
5. Engine not primed.  
6. Blocked fuel line.  
7. Faulty spark plug.  
5. Prime engine.  
6. Clean fuel line.  
7. Clean, adjust gap, or replace.  
Engine runs erratic  
1. Spark plug wire loose.  
2. Unit running on CHOKE.  
(If equipped)  
1. Connect and tighten spark plug wire.  
2. Move choke lever to OFF position.  
3. Blocked fuel line or stale fuel.  
3. Clean fuel line; fill tank with clean, fresh  
gasoline  
4. Water or dirt in fuel system.  
5. Dirty air cleaner.  
6. Carburetor out of adjustment.  
4. Drain fuel tank. Refill with fresh fuel.  
5. Clean or replace air cleaner.  
6. See authorized service dealer.  
Too much vibration  
Engine overheats  
1. Loose parts or damaged impeller.  
1. See authorized service dealer.  
1. Engine oil level low.  
2. Dirty air cleaner.  
3. Carburetor not adjusted properly.  
1. Fill crankcase with proper oil.  
2. Clean or replace air cleaner.  
3. See authorized service dealer.  
Occasional skip (hesitates) 1. Spark plug gap too close.  
at high speed  
1. Adjust gap to.030.  
Unit does not discharge  
1. Discharge chute clogged.  
1. Stop engine immediately and  
disconnect spark plug wire. Clean flail  
screen and inside of discharge opening.  
2. Stop engine and disconnect spark plug  
wire. Remove lodged object.  
2. Foreign object lodged in impeller.  
3. Low engine RPM.  
3. Always run engine at full throttle.  
Rate of discharge slows  
considerably or  
composition of discharged  
material changes.  
1. Low engine RPM.  
2. Chipper blade dull.  
1. Always run engine at full throttle.  
2. Replace chipper blade or see your  
authorized service dealer.  
NOTE: For repairs beyond the minor adjustments listed above, contact your nearest authorized service dealer.  
12  
Notes  
13  
SECTION 7: PARTS LIST FOR MODEL 494  
11  
15  
5
21  
27  
22  
19  
13  
23  
14  
7
18  
28  
26  
9
20  
4
96  
1
98  
2
10  
97  
3
33  
16  
37  
30  
41  
18  
99  
45  
7
6
38  
29  
37  
38  
12  
39  
40  
26  
94  
95  
93  
48  
92  
43  
96  
97  
41  
98  
6
13  
8
39  
8
43  
6
44  
8
67  
24  
17  
8
56  
49  
52  
44  
55  
67  
53  
74  
51  
83  
56  
73  
32  
57  
69  
70  
78  
71  
68  
58  
50  
78  
72  
82  
89  
83  
79  
76  
43  
75  
81  
61  
44  
70  
55  
63  
59  
65  
87  
43  
D
85  
88  
90  
79  
91  
80  
14  
Model 494  
Ref.  
No.  
Ref.  
No.  
Part No.  
Part Description  
Stop Washer  
Part No.  
734-0255  
Part Description  
1
11480  
50  
51  
52  
53  
55  
56  
57  
58  
59  
61  
63  
65  
67.  
68  
69  
70  
71  
72  
73  
74  
75  
76  
78  
79  
80  
82  
83  
85  
87  
88  
89  
90  
91  
92  
93  
94  
95  
96  
97  
98  
99  
Air Valve  
2
681-0118  
681-0144  
710-0542  
710-0607  
710-3256  
712-0429  
712-3027  
714-0104  
715-0129  
726-0106  
726-0135  
728-0175  
732-0546  
732-0629  
735-0127  
735-0651  
736-0119  
738-0137A  
738-0946  
747-0531A  
747-0747  
747-1124  
747-1125  
781-0492A  
781-0633  
781-0698  
781-0715  
781-0752  
781-0754  
781-0755  
738-0813  
731-1899  
710-0751  
736-0173  
712-3027  
749-1004  
710-0106  
712-3010  
736-0242  
735-0249  
681-0068A  
726-0214  
Inlet Guide Assembly  
Arm Bracket Assembly  
Hex Flange Bolt: 5/16-18 x 8.375”  
Hex Washer Screw: 5/16-18 x 0.5”  
Button-Head Screw 1/4-20 x 0.5”  
Lock Nut: 5/16-18  
750-0793  
712-3027  
714-0149B  
720-0170  
710-0805  
781-0510B  
736-0366  
734-1797  
736-0170  
681-0117  
710-0157  
731-1617  
742-0544  
712-0411  
736-0119  
681-0030  
742-0571  
781-0457  
681-0094  
781-0735  
715-0166  
710-1054  
710-3008  
681-0004A  
710-0825  
726-0211  
711-0835  
719-0329  
711-0833B  
710-1254  
736-0217  
736-0247  
732-0306  
736-0117  
714-0104  
711-1304  
736-0160  
634-04009  
726-0299  
747-0982  
Chute Hinge Spacer  
Hex Ctr. Lock Nut 1/4-20 Thd.  
Internal Cotter Pin  
Hand Knob  
3
4
5
6
Hex Bolt 5/16-18 x 1.5”  
Shredder Frame  
7
8
Hex Flange Lock Nut: 1/4-20  
Internal Cotter Pin  
Flat Washer 1.12 x .64 x .120  
Wheel Assembly  
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
37  
38  
39  
40  
41  
43  
44  
45  
48  
49  
Spiral Pin  
Special Lock Washer  
Flail Housing Assy. (Inner)  
Hex Bolt 5/16-24 x .75Lg.  
Tamper Plug (If Equipped)  
Chipper Blade  
Cap Nut  
Speed Cap Nut  
Pop Rivet  
Torsion Spring  
Hopper Door Spring  
Rubber Washer  
Hex Top Lock Nut 5/16-24  
Lock Washer 5/16I.d.  
Impeller assembly  
Shredder Blade  
Hopper Flap  
Lock Washer  
Shdr. Scr: .340 x .285 x 1/4-20  
Shdr. Scr: .56 x .165 x 5/16-18  
Rel. Rod: 5/16dia.  
Hopper Door Rod  
Shredder Screen  
Discharge Chute Assembly  
Retaining Clip  
Spring Roll Pin  
Flap Retaining Rod  
Flap Retaining Bail  
Hopper Pivot Door  
Flat Head Scr. 5/16-24 x .75”  
Hex Bolt 5/16-18 x .75”  
Flail Housing Assy. (Outer)  
Hex Bolt 1/4-20 x 3.75”  
U Nut 5/16-18  
Chute Flap Strip  
Hopper Lock Bracket  
Shredder Plate  
Clevis Pin  
Flap Mounting Bracket  
Upper Hopper  
Flail Blade  
Clevis Pin  
Lower Hopper  
Hex Patch Bolt 3/8-24 x 2.25”  
Lock Washer 3/8”  
Flat Washer .406I.d. x 1.25”  
Compression Spring  
Flat Washer  
Shredder Axle  
Chipper Chute  
Hex Bolt 1/4-20 x .625  
Flat Washer .28 I.d. x .74 O.d.  
Flanged Lock Nut  
Internal Cotter Pin  
Axle Shaft  
Chipper Chute Support  
Hex Scr. 1/4-20 x .625 (Gr. 2)  
Hex Nut 5/16-18 Thd. (Gr. 5)  
Bell Washer .345I.d. x .88”  
Shredder Chute Flap  
Chipper Chute Assembly  
Push Cap 5/8dia.  
Flat Washer  
Complete Wheel: Grey  
Push Cap  
Lock Rod  
100 764-0501  
Shredder Bag  
15  
MANUFACTURERS LIMITED WARRANTY FOR:  
The limited warranty set forth below is given by Troy-Bilt LLC  
with respect to new merchandise purchased and used in the  
United States, its possessions and territories.  
d.  
Troy-Bilt LLC does not extend any warranty for  
products sold or exported outside of the United States,  
its possesions and territories, except those sold  
through Troy-Bilt LLCs authorized channels of export  
distribution.  
Parts that are not genuine Troy-Bilt parts are not  
covered by this warranty.  
Service completed by someone other than an  
authorized service dealer is not covered by this  
warranty.  
Troy-Bilt LLC warrants this product against defects for a  
period of two (2) years commencing on the date of original  
purchase and will, at its option, repair or replace, free of  
charge, any part found to be defective in materials or  
workmanship. This limited warranty shall only apply if this  
product has been operated and maintained in accordance  
with the Operators Manual furnished with the product, and  
has not been subject to misuse, abuse, commercial use,  
neglect, accident, improper maintenance, alteration,  
vandalism, theft, fire, water, or damage because of other peril  
or natural disaster. Damage resulting from the installation or  
use of any accessory or attachment not approved by Troy-Bilt  
LLC for use with the product(s) covered by this manual will  
void your warranty as to any resulting damage.  
e.  
f.  
g.  
Transportation charges and service calls are not  
covered.  
No implied warranty, including any implied warranty of  
merchantability of fitness for a particular purpose,  
applies after the applicable period of express written  
warranty above as to the parts as identified. No other  
express warranty, whether written or oral, except as  
mentioned above, given by any person or entity,  
including a dealer or retailer, with respect to any product,  
shall bind Troy-Bilt LLC. During the period of the  
warranty, the exclusive remedy is repair or replacement  
of the product as set forth above.  
Normal wear parts or components thereof are subject to  
separate terms as follows: All normal wear parts or  
component failures will be covered on the product for a period  
of 90 days regardless of cause. After 90 days, but within the  
two year period, normal wear part failures will be covered  
ONLY IF caused by defects in materials or workmanship of  
OTHER component parts. Normal wear parts and  
components include, but are not limited to: batteries, belts,  
blades, blade adapters, grass bags, rider deck wheels, seats,  
snow thrower skid shoes, shave plates, auger spiral rubber,  
and tires.  
The provisions as set forth in this warranty provide the  
sole and exclusive remedy arising from the sale. Troy-  
Bilt LLC shall not be liable for incidental or consequential  
loss or damage including, without limitation, expenses  
incurred for substitute or replacement lawn care services  
or for rental expenses to temporarily replace a warranted  
product.  
HOW TO OBTAIN SERVICE: Warranty service is available,  
WITH PROOF OF PURCHASE, through your local authorized  
service dealer. To locate the dealer in your area, check your  
Yellow Pages, or contact Troy-Bilt LLC at P.O. Box 361131,  
Cleveland, Ohio 44136-0019, or call 1-866-840-6483 or 1-  
Some states do not allow the exclusion or limitation of  
incidental or consequential damages, or limitations on how  
long an implied warranty lasts, so the above exclusions or  
limitations may not apply to you.  
In no event shall recovery of any kind be greater than the  
amount of the purchase price of the product sold. Alteration  
of safety features of the product shall void this warranty.  
You assume the risk and liability for loss, damage, or injury to  
you and your property and/or to others and their property  
arising out of the misuse or inability to use the product.  
This limited warranty does not provide coverage in the  
following cases:  
a.  
The engine or component parts thereof. These items  
carry a separate manufacturers warranty. Refer to  
applicable manufacturers warranty for terms and  
conditions.  
This limited warranty shall not extend to anyone other than  
the original purchaser or to the person for whom it was  
purchased as a gift.  
b.  
c.  
Log splitter pumps, valves, and cylinders have a sepa  
rate one year warranty.  
Routine maintenance items such as lubricants, filters,  
blade sharpening, tune-ups, brake adjustments, clutch  
adjustments, deck adjustments, and normal  
deterioration of the exterior finish due to use or  
exposure.  
HOW STATE LAW RELATES TO THIS WARRANTY: This  
limited warranty gives you specific legal rights, and you may  
also have other rights which vary from state to state.  
Troy-Bilt LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019; Phone: 1-866-840-6483, 1-330-558-7220  

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