GB - 13

CHECK ENGINE OIL COOLER

Check engine oil cooler every 25 hours. Check more
often when operating in dirty or dusty conditions. See
engine manual for detailed instructions.

CLEAN HYDRAULIC OIL COOLER

Blow out hydraulic oil cooler with compressed air every
25 hours of operation to remove dust and debris.

INSPECT MUFFLER/SPARK ARRESTOR

Inspect muffler and spark arrestor every 50 hours.
Replace muffler if corroded.

REPLACE AIR CLEANER

Replace air cleaner every 100 hours. Replace more
often when operating in dirty or dusty conditions. See
engine manual for detailed instructions.

CHANGE OIL

Change engine oil every 100 hours. See engine manual
for detailed instructions.

CLEAN COOLING AREAS

Remove shrouds and clean cooling areas every 100
hours. Clean more often in dirty or dusty conditions. See
engine manual for detailed instructions.

CHANGE ENGINE OIL FILTER

Change oil filter every 200 hours. See engine manual for
detailed instructions.

CHECK SPARK PLUGS

Check condition of spark plugs and spark plug gap every
200 hours. See engine manual for detailed instructions.

REPLACING THE DRIVE BELT

1. Stop engine and remove key.
2. Disengage PTO.
3. Remove remove mower belt from electric clutch
(see mower owner’s manual).
4. Remove idler spring and drive belt.
5. Place the new belt on the pump sheave, idler pulley
and engine sheave.
6. Reinstall idler spring.
7. Reinstall mower belt. Adjust mower belt tension per
mower Owner/Operator Manual.

ADJUSTING NEUTRAL

Adjust neutral on hydraulic pump if tractor "creeps" when
direction control pedal is not depressed.
1. Shut off engine and remove key.
2. Jack or hoist one of the drive wheels off the ground.
3. Start the engine. Do not engage parking brake.
4. Loosen adjusting bolt.
5. To correct forward creep, turn neutral bracket
clockwise.
To correct backward creep, turn neutral bracket
counterclockwise.
6. Retighten the adjusting bolt.
7. Ensure neutral switch sits in notch on plate. If it
does not, loosen plate bolt and rotate plate until
neutral switch sits in notch.
NOTE: This adjustment will affect the direction control
pedal angle. See Adjusting Direction Control Pedal to
adjust angle.
SERVICE AND ADJUSTMENTS
1. Electric Clutch
2. Idler Spring
3. Drive Belt
4. Pump Sheave
5. Idler Pulley
6. Engine Sheave
OF3330
1
2
3
4
5
6
Figure 6
WARNING: The following adjustment requires
engine running and guards removed. Use
extreme caution when performing this
adjustment.