JLG 80SL, Service Maintenance Manual

Page: 101 / 162

SECTION 4 - HYDRAULICS
3121325 – JLG Lift – 4-21
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 4-38.)
• remove rubber plug from adjustment port
• pressure should be set to maximum of 210 bar (3045.8
psi). Adjust the setting screw fully in clockwise direc-
tion.(see Figure 4-39.)
Pump Engage/Disengage Valve
Figure 4-39. Proportional Valve Pressure Adjustment
Figure 4-38. Pressure Test Port
1
2
Figure 4-40. Pump Engage/Disengage Valve
1. Torque to 5 ft lbs (6.8 Nm)
2. Torque to 25 ft lbs (33.9 Nm)
• Operating Pressure: 3000 psi (207 bar)
• Voltage: 24VDC