Toro Reelmaster 5510 Series, Service Manual

Page: 267 / 662

Flushing the Hydraulic System (continued)
9. Fill the hydraulic tank with the correct quantity of new hydraulic fluid.
10. Prime the hydraulic pumps; refer to Priming the Hydraulic Pumps (page
6–146) .
11. Start the engine and operate it at low-idle speed for a minimum of 2 minutes.
Increase the engine speed to high idle for a minimum of 1 minute under
no load.
12. Raise and lower the cutting units several times. Turn the steering wheel fully
left and right several times.
13. With the cutting units fully lowered and the operator seat occupied, engage
the cutting units and let them run for several minutes. Disengage the cutting
units.
14. Shut off the engine and check for hydraulic-fluid leaks.
Note: Check the hydraulic-fluid level in the hydraulic tank and add correct
quantity of fluid if necessary; refer to the Operator’s Manual .
15. Operate the machine for 2 hours under normal operating conditions.
16. Check the condition of hydraulic fluid. If new fluid shows any signs of
contamination, repeat steps 1 through 15 again until the fluid is clean.
17. When the hydraulic fluid is free from contamination, assume normal operation
and follow the recommended maintenance intervals.
Filtering the Closed-Loop Traction Circuit
Filtering a closed-loop hydraulic system after a major component failure (e.g.,
traction (piston) pump or wheel motor) is necessary to prevent unwanted material
from transmitting throughout the system. If a closed-loop hydraulic system
filtering tool is not used to ensure the system cleanliness, repeat failures, as well
as subsequent damage to other hydraulic components in the affected system,
will occur. To effectively remove the contamination from the closed-loop traction
circuit, use the Toro high flow hydraulic filter and hydraulic hose kits (refer to
Special Tools (page 6–44) ).
1. Park the machine on a level surface, shut of the engine, and remove the key
from the key switch.
IMPORTANT
Before lifting the machine with a jack, review and follow Jacking
Instructions (page 1–6) .
2. Lift and support the machine so that all the wheels are off the ground.
Note: If the wheel motor was replaced, install a high-flow filter to the inlet of
the new motor instead of to the traction pump fitting. This will prevent system
contamination from entering and damaging the new wheel motor.
Reelmaster ® 5410/5510/5610 Series Page 6–149 Hydraulic System: Service and Repairs
15216SL Rev C