Troubleshooting, Adjustment & Repair
TRANSMISSION MAINTENANCE
The hydrostatic transmissions are sealed units that require no maintenance other than the following.
•Keep the machine and the transmission cooling fins clear or grass, leaves and debris.
•Keep oil level in the reservoir (A, Figure 32) at the “FULL” line (B). Extra oil in the reservoir will not benefit the machine.
•If it is necessary to add oil to the reservoir, use SAE straight 20 or 30 weight motor oil. DO NOT use a
•Make sure the oil reservoir cap are tight.
•Keep water, dirt and debris from entering the oil reservoir. A small amount of a contaminant could damage the transmissions.
Make sure transmissions and immediate surrounding areas are free from dirt and debris before changing the oil and filters. Cleanliness while performing this operation is extremely important.
Changing Oil & Filters
1.Park the machine on a smooth, level surface such as a concrete floor. Disengage the PTO, engage the parking brake, turn off the engine, and remove the ignition key.
2.Place a drain pan under each transmission and remove the filters to drain the oil. See Figure 33.
NOTE: Before removing the right hand transmission filter the filter guard must be removed.
3.Once oil has drained from transmissions, replace with new filters (P/N 5021068X1), placing a light film on the seal of the filter before installing.
4.Fill oil reservoirs 3/4 full with SAE straight 20 or 30 weight motor oil.
To Bleed Air From Transmissions
1.Locate the machine in a secure area, away from bystanders and preferably facing a wall. Raise the drive tires off the ground and secure with jack stands.
2.Continue to fill reservoirs to the FULL LINE until the oil level stops going down.
A |
B |
Figure 32. Oil Reservoirs
A.Oil Reservoirs
B.“FULL” Line
A |
Figure 33. Transmission Oil Filter Location
3.Start the engine and adjust throttle control to just above idle. See the STARTING THE ENGINE section for proper starting instructions.
4.Run engine for 5 minutes. Watch the oil level in the reservoirs. Add oil to the “FULL” line (B, Figure 32) as necessary.
5.With engine running, cycle controls forward and reverse until positive response to the drive is achieved. Do not attempt to move the unit until bleeding is complete or serious damage may occur.
6.Watch oil levels for the next few days and add oil to the reservoirs as necessary.
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