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Problem
The engine does not start, starts hard, or
fails to keep running.
The engine loses power.
The engine overheats.
The machine pulls left or right (with levers
fully forward).
The machine does not drive.
There is abnormal vibration.
Possible Cause
1. The fuel tank is empty.
2. The fuel-shutoff valve is closed.
3. The throttle and choke are not in the
correct position.
4. There is dirt, water, or stale fuel is in
the fuel system.
5. The air cleaner is dirty.
6. The electrical connections are
corroded, loose or faulty.
7. A relay or switch is not functioning
properly.
8. The spark plug is faulty.
9. The spark-plug wire is not connected.
10. The ambient temperature is too low.
1. The engine load is excessive.
2. The air cleaner is dirty.
3. The oil level in the crankcase is low.
4. The cooling fins and air passages for
the engine are plugged.
5. There is dirt, water, or stale fuel is in
the fuel system.
1. The engine load is excessive.
2. The oil level in the crankcase is low.
3. The cooling fins and air passages for
the engine are plugged.
1. The tire pressure in drive tires is not
correct.
2. The tracking needs adjustment.
1. The transmission belt worn, loose, or
broken.
2. The transmission belt is off a pulley.
1. A tine is bent.
2. The tine mounting bolt is loose.
3. The engine mounting bolts are loose.
4. There is a loose engine pulley or idler
pulley.
5. The engine pulley is damaged.
6. A belt is damaged.
7. The chains are not properly tensioned.
54
Corrective Action
1. Fill the fuel tank.
2. Open the fuel-shutoff valve.
3. Ensure that the throttle level is midway
between the S
and F
LOW
and the choke is in the O
a cold engine or the O
FF
warm engine.
4. Contact an Authorized Service Dealer.
5. Clean or replace the air-cleaner
element.
6. Check the electrical connections
for good contact. Clean connector
terminals thoroughly with electrical
contact cleaner, apply dielectric
grease, and connect.
7. Contact an Authorized Service Dealer.
8. Clean, adjust, or replace the spark
plug.
9. Check the spark-plug wire connection.
10. Place the machine into a warmer
environment and allow the hydraulic
fluid and engine oil to warm sufficiently.
1. Reduce the ground speed or aeration
depth.
2. Clean or replace the air-cleaner
element.
3. Add oil to the crankcase.
4. Remove the obstructions from the
cooling fins and air passages.
5. Contact an Authorized Service Dealer.
1. Reduce the ground speed or aeration
depth.
2. Add oil to the crankcase.
3. Remove the obstructions from the
cooling fins and air passages.
1. Adjust the tire pressure in the drive
tires.
2. Adjust the traction-control linkage.
1. Change the belt.
2. Change the belt.
1. Install a new tine.
2. Tighten the tine mounting bolt.
3. Tighten the engine mounting bolts.
4. Tighten the appropriate pulley.
5. Contact an Authorized Service Dealer.
6. Install a new belt.
7. Check the drive wheel chain tension
and the tine drive-chain tension.
positions,
AST
position for
N
position for a
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