Service Manual User guide

SECTION 4 - HYDRAULICS
4-18 – JLG Lift – 3121322
Adjust main pressure on top of the Main Pressure Block
• remove the cap and attach a pressure gauge to pres-
sure test port (see Figure 4-35.)
• remove rubber plug from adjustment port
• adjust to 3045.8 psi (210 bar)(see Figure 4-35.)
Steering Valve
Pressure Adjustment:
• remove the cap and attach a pressure gauge to pres-
sure test port (see Figure 4-34.)
• operate the Steer Cylinder to end of stroke
• pressure can be set/adjusted by adjusting the screw in
the port
• set pressure to 2538 psi (175 bar)
Figure 4-35. Main Valve Pressure Adjustment
Figure 4-34. Pressure Test Port
V
ALVE SCHEMATIC
PT
A
B
A
B
P
T
Figure 4-36. Steering Valve