Toro Groundsmaster 5900 Series Service Manual page 104

Towing Traction Unit (continued)
Hydraulic System: General Information
If it becomes necessary to tow or push the machine, move machine in a forward
direction at a speed below 2 mph (3.2 kph), and for a very short distance. If the
machine needs to be moved more than a short distance, machine should be
transported on a trailer.
The piston (traction) pump high pressure relief valves include a high pressure
relief valve, charge check valve and a bypass valve. Both forward and reverse
high pressure relief valves need to be loosened three (3) revolutions to engage
the bypass function and allow the machine to be moved
leakage from relief valves, do not loosen them more than three (3) revolutions.
Also, manually release the automatic parking brake using the bypass valve and
plunger located on the right side of the operator seat. Refer to your Operator's
Manual for additional towing instructions.
Do not loosen relief valves when engine is running.
Before returning machine to service, tighten both of the relief valves until seated.
Then, torque relief valves to 70 N·m (52 ft−lb). The parking brake automatically
resets when the engine is started.
IMPORTANT
Page 5–4
(Figure 30). To prevent
Groundsmaster ® 5900 & 5910
16227SL Rev B