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GB - 25
REPLACING HYDROSTATIC BELT
Remove
(Figure 24)
1. Remove PTO belt (see REPLACING
PTO BELT on page 24).
2. Disconnect electric clutch connector.
3. Remove clutch stop.
4. Disconnect idler spring.
5. Remove hydrostatic belt from
hydrostatic transmission pulleys, pulley,
electric clutch, and idler.
Install
(Figure 24)
1. Install hydrostatic belt on idler, electric
clutch, pulley, and hydrostatic
transmission pulleys.
2. Connect idler spring.
3. Install clutch stop.
4. Connect electric clutch connector.
5. Install PTO belt (see REPLACING PTO
BELT on page 24).
Check Hydraulic Fluid Level
(Figure 25)
Check the system with the unit cold and
parked on a flat, level surface.
Then run the unit for about one minute and
recheck the levels.
To Add Hydraulic Fluid:
(Figure 25)
1. Remove the cap from the expansion
tank.
2. Fill the expansion tank with 20W-50
engine oil with an SL API classification
until oil level reaches the cold fill line on
the tank.
3. Install the expansion tank cap and then
purge the system. See “Purging the
Hydraulic System” on page 26.
Change Hydraulic Fluid and Filter
(Figure 26)
NOTE: Change hydraulic fluid and filter after
the first 75 hours of operation and then every
400 hours. Use 20W-50 engine oil with an SL
API classification.
1. Place container under oil filter to catch
oil.
2. Remove the filter guard and oil filter from
the trans axle.
3. Remove the oil drain plug or fitting from
the inlet port and allow the trans axle to
drain completely.
CAUTION: Use care when
releasing idler spring tension.
Keep body parts well away from
idler when performing this
operation.
Figure 24
1
1. Hydrostatic Belt
2. Hydrostatic Transmission Pulley
3. Pulley
4. Electric Clutch
5. Idler
6. Idler Spring
2
5
2
4
6
3
Figure 25
The hydraulic fluid should be at the cold
fill line of the expansion tank.