Valve Adjustments - Genie S-80 Service Manual

Section 7 - Repair Procedures
4WD DRIVE MANIFOLD
Plug Torque Specifications
Description Hex size
1
SAE No. 2 /
3
SAE No. 4 /
1
SAE No. 6 /
5
SAE No. 8 /
9
SAE No. 10 /
5
SAE No. 12 /
19-2

Valve Adjustments

How to Adjust the Charge
Pressure Relief Valve
1 Connect a 0 to 600 psi (0 to 41 bar) pressure
gauge to the test port located on the drive
manifold.
Bodily injury hazard. Spraying
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to
squirt or spray.
2 Start the engine from the platform controls.
3 Drive the machine slowly in either direction
and observe the pressure reading on the
pressure gauge.
4 Turn the engine off. Hold the relief valve and
remove the cap (index 2).
5 Adjust the internal hex socket. Turn it clockwise
to increase the pressure or counterclockwise
to decrease the pressure. Then install the
valve cap.
7 - 60
Torque
50 in-lbs / 6 Nm
8
13 ft-lbs / 18 Nm
16
18 ft-lbs / 24 Nm
4
50 ft-lbs / 68 Nm
16
55 ft-lbs / 75 Nm
16
75 ft-lbs / 102 Nm
8
Genie S-80 & Genie S-85
Service Manual - First Edition
6 Restart the engine. Drive the machine in either
direction and recheck the valve pressure.
7 Turn the engine off, then remove the
pressure gauge.
Relief valve specifications
Pressure
17 bar
250 psi
Part No. 34032