Control Cutoff Valve - JLG 1850SJ Service And Maintenance Manual

Control Cutoff Valve

Replace the control cutoff valve as a complete unit. Do not
attempt to repair the internal components of the valve.
REMOVAL
1. Disconnect the coil from the vehicle/machine wire har-
ness.
2. Using a 24 mm hex wrench, remove the control cutoff
valve coil nut (G30). Remove the coil (G20).
3. Use a 1 1/16 in hex wrench to remove the control cutoff
valve (G10). Remove and discard the O-rings and backup
rings (G10A).
INSPECTION
1. Inspect the sealing surfaces of the pump and control
cutoff valve for nicks or scratches. Replace components
as necessary.
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SECTION 5 - BASIC HYDRAULIC INFORMATION & HYDRAULIC SCHEMATICS
Figure 5-139. Charge Pressure Relief Valve
REASSEMBLY
1. Lubricate and install new O-rings (G10A) onto the valve.
2. Install the control cutoff valve (G10). Torque to 46 Nm
[34 lbft]. Slide the coil (G20) onto the valve.
3. Install the coil nut (G30). Torque to 9 Nm [7.lbft]. Do not
overtorque.
4. Operate vehicle/machine through full range of controls
to ensure proper operation
5-147