Oscillate Directional Valve; How To Adjust The Oscillate Relief Valve - Genie S-80 Service Manual

Service Manual
Oscillating Axle Components
13-2

Oscillate Directional Valve

How to Adjust the Oscillate Relief How to Adj ust the Oscill ate R elief Valve
Valve
1 Connect a 0 to 2000 psi / 0 to 150 bar
pressure gauge to the diagnostic nipple
located on the function manifold.
2 Remove the drive chassis cover from the
non-steer end of the machine.
3 Disconnect the directional valve linkage, by
removing the clevis yoke from the drive
chassis.
1 oscillate valve
2 clevis yoke
3 drive chassis
144
4 Start the engine from the ground control.
5 With the engine running, manually activate the
valve and observe the pressure reading on the
pressure gauge. Refer to Specifications,
Hydraulic Component Specifications.
6 Turn the engine off.
7 Locate the relief valve on the function manifold
(item SC).
8 Loosen the jam nut on the relief valve.
9 Turn the valve clockwise to increase the
pressure or counterclockwise to decrease the
pressure.
10 Tighten the jam nut.
11 Repeat steps 4 through 10 to confirm the
oscillate relief valve pressure.
Note: The oscillate pressure required is while the
oscillate cylinders are in motion. Do not dead head
the cylinders to either side.
12 Turn the engine off, remove the pressure
gauge and assemble the directional valve
linkage.
13 Install the cover on the non-steer end of the
drive chassis.
S-80 • S-85 • S-80X
February 2017
Tip-over hazard. Do not adjust
the relief valve higher than
specified.
Part No. 1259369GT