Valve Adjustments - Function Manifold; How To Adjust The System Relief Valve; How To Adjust The Boom Down Relief Valve - Genie S-45 XC Service And Repair Manual

July 2019
7-2
Valve Adjustments -
Function Manifold
How to Adj ust the Sy stem Reli ef Valve
How to Adjust the System Relief
Valve
Note: Perform this procedure with the machine in
the stowed position.
Note: Refer to Function Manifold Component list to
locate the system relief valve.
1 Connect a 0 to 5000 psi / 0 to 350 bar
pressure gauge to the test port on the function
manifold.
2 Start the engine from the ground controls.
3 Press and hold the function enable button.
Activate and hold the primary boom retract
switch with the boom fully retracted.
4 Observe the pressure reading on the pressure
gauge. Refer to Specifications, Hydraulic
Component Specifications.
5 Turn the engine off. Use a wrench to hold the
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 2 to
confirm the relief valve pressure.
8 Remove the pressure gauge.
Part No. 1286829GT S-40 XC • S-45 XC • S-40 TraX • S-45 TraX
How to Adj ust the Boom Dow n R elief Valv e
How to Adjust the Boom Down
Relief Valve
Note: Perform this procedure with the machine in
the stowed position.
Note: Refer to the Function Manifold Component
list to locate the Boom Down relief valve.
1 Connect a 0 to 5000 psi / 0 to 350 bar
pressure gauge to the LS test port of the
function manifold.
2 Start the engine from the ground controls.
3 Press and hold the function enable button.
Activate and hold the primary boom down
switch with the boom in a fully stowed position.
4 Observe the pressure reading on the pressure
gauge. Refer to Specifications, Hydraulic
Component Specifications.
5 Turn the engine off. Use a wrench to hold the
relief valve and remove the cap. Refer to
Repair Procedures, Function Manifold
Components, item BD.
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.
Repeat this procedure beginning with step 2 to
confirm the relief valve pressure.
7 Remove the pressure gauge.
Service and Repair Manual
Manifolds
65