Attachment/Loader Circuit Testing – Relief Valve Pressure Test
(continued)
Hydraulic System: Testing the Hydraulic System
g263149
1.
rear attachment upper quick-disconnect (A or retract port)
3. Remove the cap and connect a 34,500 kPa (5000 PSI) pressure gauge to
the rear attachment upper quick-disconnect (A or retract port) at the rear
of the machine.
4. Start engine and increase engine speed to (2300 RPM).
5. Shift the auxiliary load valve into the A position (rearward).
6. The pressure gauge reading should be 20,684 to 24,131 kPa (3000 to 3500
PSI).
7. Release the joystick, stop the engine and record the test results.
8. If circuit relief pressure reading is incorrect, clean, repair or replace the
auxiliary load valve relief valve; refer to
5–105).
9. After testing, remove the pressure gauge and install the supply line cap.
Figure 30
Auxiliary Load Valve Service (page
Page 5–44
Outcross 9060
18234SL Rev B