Valve Adjustments, Oscillate Relief Valve - Genie S-40 Service Manual

Section 4 • Repair Procedures
MANIFOLDS
7-7
Valve Adjustments - Oscillate
Relief Valve
How to Adjust the Oscillate Relief
Valve Pressure
1 Remove the drive chassis cover from the non-
steer end of the machine.
2 Connect a 0 to 2000 psi / 0 to 150 bar pressure
gauge to the diagnostic nipple located near the
oscillate directional valve.
3 Disconnect the directional valve linkage, by
removing the heim joint and retaining fastener
from the axle.
4 Start the engine from the platform controls.
5 With the engine running, manually activate the
valve and observe the pressure reading on the
pressure gauge.
Oscillate relief valve specification
Pressure
6 Turn the engine off.
7 Locate the relief valve on the directional valve
and remove the cap.
4 - 34
8 Adjust the internal screw. Turn it clockwise to
increase the pressure or counterclockwise to
decrease the pressure. Install the valve cap.
9 Repeat steps 4 through 7 and manually activate
the valve to confirm the valve pressure.
10 Turn the engine off, remove the pressure gauge
and assemble the directional valve linkage.
11 Install the cover on the non-steer end of the
drive chassis.
950 psi
65.5 bar
Genie S-40 and Genie S-45
January 2005
Tip-over hazard. Do not adjust the
relief valve higher than specified.
Part No. 102521
REV A