GB - 15
Replacing Mower Belts
NOTE:
Long belt must be removed to remove short belt.
1. Roll long belt off left blade spindle and remove from
deck.
2. Roll short belt off right blade spindle and remove
from deck. Idler pivot bolt must be loosened slightly
to gain clearance to remove belt from under idler
pulley (Figure 8).
3. Arrange new mower belt(s) on deck (short belt first).
Retighten short belt idler pivot bolt. Install belts on
sheaves. Roll belts onto blade sheave last.
4. Replace belt covers and return foot board to closed
position.
Replacing the Hydro Pump Belt
1. Properly stop and park unit (refer to Operation
Section).
2. Remove the mower belt from the mower clutch
sheave. See “Replacing Mower Belts”.
3. Remove old hydro pump belt by rolling belt off right
hand hydrostat sheave first (Figure 9).
4. Install new pump belt by positioning belt on sheaves.
Roll belt onto right hand hydrostat sheave last.
5. Put the mower belt back on mower clutch sheave.
See “Replacing Mower Belts”.
HYDRAULICS AND TRANSAXLES
Changing Hydraulic Fluid
The hydraulic oil filter and hydraulic oil should be
changed after the first 500 hours. Use Mobil 15W50
synthetic oil for best component life.
1. Clean around dipstick cap and dipstick. Remove
dipstick.
2. Place container under oil filter to catch oil.
3. Remove oil filter.
4. Allow tank to drain.
5. Install new oil filter.
6. Add new oil to the oil tank. It will take about 5 quarts.
Use Mobil 15W50 synthetic oil for best pump and
wheel motor life.
7. Properly dispose of waste oil.
CAUTION:
Use care when releasing idler spring
tension. Keep body parts well away from idlers
when performing this operation.
1. Long Mower Belt
2. Short Mower Belt
3. Springs
4. Idlers
5. Mower Clutch Sheave
1
3
2
4
OF1642
5
Figure 9
WARNING:
HYDRAULIC FLUID can result in
severe burns
.
Fluid in hydraulic system can
penetrate skin and result in serious injury or
death.
Be sure to stop the engine before doing any
work on hydraulic parts.
Keep body and hands away from pin holes or
nozzles which expel hydraulic fluid when under
pressure. Use paper or cardboard, not hands, to
search for leaks.
Insure all hydraulic fluid connections are tight
and all hydraulic hoses and lines are in good
condition before applying pressure to system.
FOREIGN FLUID INJECTED INTO BODY can
result in gangrene. Fluid must be surgically
removed within a few hours by a doctor familiar
with this form of injury.
OF1631
2
3
1
4
5
6
1. Hydro Belt
2. Spring
3. Idler
4. Engine Sheave
5. Right Hand Hydrostat
6. Left Hand Hydrostat
Figure 8
