Terex Genie Z-135/70, Service And Repair Manual

Page: 156 / 244

Service and Repair Manual October 2018
Manifolds
142 Z®-135 /70 Part No. 1268557GT
8-10
Valve Adjustments - Steer and
Axle Manifold
How to Adjust the Axle Relief
Valve
Note: Perform this procedure with the machine on a
firm, level surface and in the stowed position with
the axles extended.
Note: Refer to Steer and Axle Manifold list to locate
the axle relief valve.
Note: Two people will be required to perform this
procedure.
1 Connect a 0 to 5000 psi / 0 to 350 bar
pressure gauge to the test port on the steer
and axle manifold.
2 Locate the axle relief valve on the steer and
axle manifold. Hold the relief valve with a
wrench and remove the cap.
3 Start the engine from the platform controls and
press down the foot switch. Press and hold the
axle extend button at the platform controls.
Observe the pressure reading on the pressure
gauge. Refer to Specifications,
Hydraulic
Component Specifications .
4 Turn the engine off.
5 Adjust the internal hex socket. Turn it
clockwise to increase the pressure or
counterclockwise to decrease the pressure.
Install the relief valve cap.
Component damage hazard. Do
not adjust the relief valve
pressures higher than
specifications.
6 Repeat steps 3 through 5 to confirm relief
valve pressure.
7 Remove the pressure gauge.