TROUBLESHOOTING
Whenever a problem occurs with the hydrostatic drive system, you should always check
these items first:
1. Transmission oil is at proper level and air is bled from system.
2. Make sure the high-low speed lever is not in neutral.
3. Speed control linkage is functioning properly.
4. Cruise control is turned off.
Tractor will not operate in either direction because the engine bogs down
or stalls.
Possible Cause Corrective Action
Low transmission oil level Fill to full “F” mark on dipstick (when trans. is cold)
Motion control linkage Adjust, repair, or replace
The brake is sticking Repair linkage; replace brake assembly
Brake adjustment it too tight Adjust the brake
Tractor goes forward only at partial speed and is slow or does not operate
in reverse.
Possible Cause Corrective Action
The cruise control was engaged when the High-Low
range lever was in “N.”
Turn the cruise control off
The engine is running at partial speed Move the throttle to “FAST.”
The Linkage is out of adjustment Verify full motion is obtain on motion control shaft.
Adjust if necessary.
There is Internal hydro wear Repair/replace transmission
Tractor will not operation in either direction.
Possible Cause Corrective Action
The transmission oil is low Fill to full “F” mark on transmission oil dipstick when
transmission is cold
The control linkage needs adjustment or replacement Adjust, repair, or replace
The parking brake was not released or the parking
brake is not releasing
Release the parking brake or check the linkage
The drive shaft or wheel hub key has been damaged Replace
Faulty transmission/transaxle Repair/replace transmission/transaxle
The power steering filter is dirty Clean power steering filter
3
HYDROSTATIC DRIVE
5xi Series Tractor Service Manual 3-3
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