Steering/Hitch Cylinder Circuit Testing – Hitch Cylinder Relief
Valve (RV2) Pressure Test (continued)
12. Release the paddle switch, stop the engine and record the test results.
13. If lift cylinder relief pressure reading is incorrect:
A. If steering problems also exist, gear pump (P4) should be suspected of
wear and inefficiency.
B. Adjust relief valve (RV2) to obtain correct relief pressure; refer to
Adjusting the Manifold Relief Valves (page 5–48)
.
C. Clean, repair or replace relief valve (RV2); refer to
.
14. When testing is complete, disconnect pressure gauge from manifold and
install the test fitting cap.
Steering/Hitch Cylinder Circuit Testing – Gear Pump (P4) Flow Test
Gear pump flow testing compares the gear pump flow under no load with the
gear pump flow under load. Previous gear pump flow tests involve installing a
flow meter at or near the gear pump outlet. Access to the gear pump (P4) outlet
of this machine is difficult, and a procedure for checking the gear pump (P4)
flow is being developed for this machine. Contact your local Toro Distributor
for assistance
Attachment/Loader Circuit Testing – Relief Valve Pressure Test
g263133
Figure 29
Auxiliary Load Valve Relief Valve Pressure Test
Note:
The relief valve for the attachment and the loader hydraulic circuit is
located in the auxiliary load valve.
1. Park the machine on a level surface, lower the attachments and stop the
engine. Remove the key from the key switch.
2. Disconnect any attachment from the rear hydraulic supply lines.
Outcross 9060
Page 5–43
Hydraulic System: Testing the Hydraulic System
18234SL Rev B
Summary of Contents for 07511AA
Page 4: ...Reader Comments Page 4 Outcross 9060 18234SL Rev B ...
Page 18: ...Safety Safety and Instructional Decals Page 1 10 Outcross 9060 18234SL Rev B ...
Page 38: ...Specifications and Maintenance Special Tools Page 2 20 Outcross 9060 18234SL Rev B ...
Page 96: ...Engine Service and Repairs Page 4 24 Outcross 9060 18234SL Rev B ...
Page 208: ...Hydraulic System Service and Repairs Page 5 112 Outcross 9060 18234SL Rev B ...
Page 294: ...Electrical System Service and Repairs Page 6 86 Outcross 9060 18234SL Rev B ...
Page 384: ......