JLG 80SL, Service Maintenance Manual

Page: 104 / 162

SECTION 4 - HYDRAULICS
4-24 – JLG Lift – 3121325
Lift/Lower Valve Block
Platform Lower Flow Valve
Lift Cylinder
Lift/Lower
Valve Block
1
2
3
Solenoid
Valves
Check
Valve
Solenoid Valves (Qty. 2)
1. Torque to 5 ft lbs (6.8 Nm)
2. Torque to 60 ft lbs (44.25 Nm)
• Operating Pressure: 3500 psi (240 bar)
Check Valve
3. Torque to 20 ft lbs (27.1 Nm)
• Operating Pressure: 3500 psi (240 bar)
Figure 4-44. Lift/Lower Valve Block
• with the rated load on the platform (see
Table 1-1), adjust the knob shown to the
left to obtain the lowering speed as
specified in (Table 1-1)
Figure 4-45. Platform Lower Flow Valve