Toro Groundsmaster 360 Service Manual page 63

Traction Circuit Problems (Continued)
Problem
Single wheel motor turns while
unloaded, but slows down or stops
when load is applied.
Machine does not track straight.
NOTE:If 2WD machine does not track
straight, look for problem with
components that effect the lagging
traction side of the machine.
Groundsmaster 360
Possible Causes
Transmission bypass valve(s) is open or leaking.
Wheel motor is worn or damaged.
Transmission components (e.g. piston pump, relief valve, check valve)
for the problem wheel motor are worn or damaged.
(NOTE: If one traction circuit component has internal wear or damage,
it is possible that other traction components are also damaged.)
External traction control linkage is misadjusted, disconnected, binding
or damaged.
Steering cylinders are not synchronized preventing front and rear
wheel alignment (synchronize steering cylinders by turning in one
direction and holding until all wheels stop turning).
Steering components are out of adjustment or are damaged.
Transmission bypass valve(s) is open.
Brake is dragging or binding.
Transmission check valve is not seating or is damaged.
On 4WD machines, steering home sensor may be out of adjustment.
Transmission or wheel motor(s) is worn or damaged.
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