Toro 22305 Operator's Manual page 29

PROBLEM
Engine loses power. g
Engine overheats. g
Abnormal vibration.
Traction unit does not drive.
When at rest, loader arms creep
downward more than 3" per hour
(less than 3" an hour is normal for
this traction unit).*
When at rest, loader arms settle ,
downward 2" quickly and then d d 2" i kl d th
stop.*
POSSIBLE CAUSES
1. Engine load is excessive.
2. Air cleaner is dirty.
3. Oil level in crankcase is low.
4. Cooling fins and air passages
under engine blower housing
are plugged.
5. Spark plugs are pitted, fouled,
or gap is incorrect.
6. Dirt in fuel filter.
7. Dirt, water, or stale fuel is in
fuel system.
1. Engine load is excessive.
2. Oil level in crankcase is low.
3. Cooling fins and air passages
under engine blower housing
are plugged.
1. Engine mounting bolts are
loose.
1. Flow divider valve lever is in
the 9 o'clock position.
2. Tow-valves are open.
3. Hydro fluid level low.
4. Traction pump drive coupler is
loose or broken.
5. Pump and/or wheel motor is
defective or damaged.
6. Control valve is defective or
damaged.
7. Relief valve is defective or
damaged.
1. Valve spool leakage
1. Cylinder seals are leaking
2. Cylinder rephase valve is
leaking
29
CORRECTIVE ACTION
1. Reduce ground speed.
2. Clean air cleaner element.
3. Add oil to crankcase.
4. Remove obstruction from
cooling fins and air passages.
5. Install new, correctly gapped
spark plugs.
6. Replace fuel filter.
7. Contact Authorized Service
Dealer.
1. Reduce ground speed.
2. Add oil to crankcase.
3. Remove obstruction from
cooling fins and air passages.
1. Tighten engine mounting bolts.
1. Move the lever to the 12 to 10
o'clock position.
2. Close the tow-valves.
3. Add hydro fluid to reservoir.
4. Contact Service Dealer.
5. Contact Service Dealer.
6. Contact Service Dealer.
7. Contact Service Dealer.
1. Contact Service Dealer.
1. Replace seals.
2. Contact Service Dealer.