Troubleshooting - Gravely 988100 Owner's/Operator's Manual

PROBLEM PROBABLE CAUSE
Engine will not 1. Safety Interlock System is
start
2. Fuel tank is empty or fuel is
3. Air cleaner is clogged or damaged.
4. Safety Interlock System out of
5. Dirty or damaged spark plug.
Unit will not move 1. Transmission belt or mower belt is
or mow when the
engine is running
Changes in the 1. Loose or missing fasteners.
sound or
2. Mower blade problem.
vibrations of the
unit
3. Worn or damaged clutch.
Unit pulls sharply 1. Steering levers out of adjustment.
to the left or right
when the speed
control levers are
quickly moved all
the way forward
Unit does not
straighten
immediately when
the steering levers
are released
Unit loses power 1. Binding in the steering or brake
2. Steering levers out of adjustment.
3. Worn or damaged traction belts.
4. Transmission shaft pulley worn.

TROUBLESHOOTING

preventing start.
contaminated.
adjustment or defective.
broken, worn, or off the pulleys.
linkage.
CORRECTION
1. The engine will not start unless the shift lever is in
neutral, the key is in the On position, and the Power
Take Off (PTO) is Off (988100, 102, 103, 110, 112).
The engine will not start unless the key is in the On
position and the Power Take Off (PTO) is Off
(988114, 115, 118, 119, 313) .
2. Add fuel. If necessary, replace the fuel with clean,
fresh fuel.
3. Clean or replace the filter element. See engine
manual.
4. See your Dealer for repairs.
5. See Engine Manual.
1. Check belts for wear, damage and correct position
on pulleys. Replace belts if worn or damaged. See
Replace Transmission Belt on page 20.
1. Check all the fasteners. Replace if necessary.
2. Check blades for wear or damage. See Mower
Blades on page 21.
3. See your Dealer for repairs.
1. See Adjust Steering Levers on page 17.
1. Check linkage for debris or damage. Repair if
necessary. See Adjust Brakes on page 18 or your
Dealer for repairs.
2. See Adjust Steering Levers on page 17.
3. Check belts for wear or damage. Replace if
necessary. See Replace Traction Belts on page 18.
4. If pulley shows excessive wear, replace it. See your
Dealer for repairs.
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