Toro Groundsmaster 4500-D Series Service Manual page 194

Flush Hydraulic System (continued)
Hydraulic System: Service and Repairs
6. Connect all hydraulic hoses, lines and components that were disconnected
while draining system.
When filling hydraulic reservoir, use only hydraulic fluids specified
in Operator's Manual. Other fluids could cause system damage.
7. Fill hydraulic reservoir with new hydraulic fluid.
8. Prime hydraulic pumps (see
9. Start engine and let it run at low idle speed for a minimum of two (2) minutes.
Increase engine speed to high idle for minimum of one (1) minute under
no load.
10. Raise and lower cutting decks several times. Turn steering wheel fully left
and right several times.
11. With cutting decks fully lowered and the operator seat occupied, engage
cutting decks and let them run for several minutes. Move PTO switch to OFF.
12. Shut off engine and check for hydraulic oil leaks. Check oil level in hydraulic
reservoir and add correct amount of oil if necessary.
13. Operate machine for two (2) hours under normal operating conditions.
14. Check condition of hydraulic oil. If the new fluid shows any signs of
contamination, repeat steps
15. Assume normal operation and follow recommended maintenance intervals.
IMPORTANT
Priming Hydraulic Pumps (page
1 through 13 again until oil is clean.
Page 5–92
5–90)).
Groundsmaster ® 4500-D/4700-D
19245SL Rev A