November 2016
Service and Repair Manual
Manifolds
Part No. 1272220GT
GS-2669 DC • GS-3369 DC • GS-4069 DC
53
How t o Adj ust t he Steer R elief Valve
How to Adjust the Steer Relief
Valve
Note: Perform this procedure with the machine in
the stowed position.
1
Connect a 0 to 5000 psi / 0 to 350 bar
pressure gauge to test port #1 (TP1) on the
function manifold.
2
Remove the platform controls from the
platform and place the controls near the
function manifold on the hydraulic tank side of
the machine.
3
Turn the key switch to platform control and pull
out the red Emergency Stop button to the on
position at both the ground and platform
controls.
4
Steer the machine fully to the right or left and
hold. Note the pressure reading on the
pressure gauge. Refer to Specifications,
Hydraulic Components Specifications
.
5
Use a wrench to hold the steer relief valve and
remove the cap.
6
Adjust the internal hex socket. Turn it
clockwise to increase the pressure or
counterclockwise to decrease the pressure.
Install the relief valve cap.
Tip-over hazard. Do not adjust
the relief valve higher than
specified.
7
Repeat this procedure beginning with step 4 to
confirm the relief valve pressure.
8
Remove the pressure gauge.
1 test port #1
2 steer relief valve
