Toro Groundsmaster 4300-D Service Manual page 157

Charging the Hydraulic System (continued)
Groundsmaster ® 4300-D
16226SL Rev C
C. The suction line that is blocked.
D. The charge relief valve in the traction pump that is damaged.
E. The gear pump that is damaged.
11. After the lift cylinder moves normally, proceed to step 12.
12. Turn the steering wheel in both directions so that the steering cylinders move
in and out several times.
13. Operate the traction pedal in the forward and reverse directions. The drive
wheels should rotate in the proper direction. If the wheels rotate in the
wrong direction, shut off the engine, inspect the hydraulic line placement at
the traction pump and wheel motors. Correct the hydraulic line installation
before you proceed.
14. Ensure that the traction pedal returns to the N
from the forward or reverse direction and adjust if necessary.
15. Check the operation of the traction interlock switches; refer to
Operation of the Interlock Switches (page
16. Shut off the engine and lower the machine to the ground.
17. If the traction pump was replaced or rebuilt, operate the traction circuit so
that all the wheels rotate slowly for 10 minutes.
18. Operate the machine by gradually increasing its work load to full over a 10
minute period.
19. Stop the machine. Check the hydraulic-fluid level in the hydraulic tank and
add correct quantity of fluid if necessary; refer to the Operator's Manual.
20. Check the hydraulic components for leaks and tighten any loose connections.
5–40).
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position when released
EUTRAL
Checking the
Hydraulic System: Service and Repairs