Valve Adjustments - Function Manifold, S-100 And S-105 Models - Genie S-100 Service And Repair Manual

March 2017
10-3
Valve Adjustments - Function
Manifold, S-100 and S-105 Models
How to Adjust the Function
Manifold Relief Valve
Note: Perform this procedure with the boom in the
stowed position.
1 Connect a 0 to 5000 psi / 0 to 345 bar pressure
gauge to the test port on the function manifold.
2 Start the engine from the ground controls.
3 Simultaneously push and hold the function
enable/high speed button and the boom
retract button with the boom fully retracted.
Observe the pressure reading on the pressure
gauge. Refer to Specifications, Hydraulic Oil
Specifications.
4 Turn the engine off. Use a wrench to hold the
relief valve and remove the cap (item FI).
5 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.
6 Repeat steps 2 through 5 to confirm the relief
valve pressure.
Part No. 1268494
How to Adjust the Boom Extend
Relief Valve
Note: Perform this procedure with the boom in the
stowed position.
1 Connect a 0 to 3000 psi / 0 to 207 bar pressure
gauge to the test port on the function manifold.
2 Start the engine from the ground controls.
3 Fully raise and extend the boom.
4 Simultaneously push and hold the function
enable/high speed button and the boom
extend button with the boom fully extended.
Observe the pressure reading on the pressure
gauge. Refer to Specifications, Hydraulic
Specifications.
5 Turn the engine off. Use a wrench to hold the
relief valve and remove the cap (item FA).
6 Adjust the internal hex socket. Turn it clockwise
to increase the pressure or counterclockwise to
decrease the pressure. Install the relief valve
cap.
7 Repeat steps 2 through 6 to confirm the relief
valve pressure.
S-100 • S-105 • S-120 • S-125
Section 3 • Repair Procedures
MANIFOLDS
Tip-over hazard. Do not adjust
the relief valve higher than
specified.
3 - 85