Valve Adjustments - Function Manifold - Genie S-60 Service Manual

Section 7 • Repair Procedures
MANIFOLDS
11-2
Valve Adjustments -
Function Manifold
How to Adjust the System
Relief Valve
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 diagnostic nipple (item 24) on the
function manifold.
2 Start the engine from the ground controls.
3 Hold the function enable switch to either side
and activate and hold the retract switch with the
boom fully retracted. Observe the pressure
reading on the pressure gauge.
System relief valve specifications
Pressure
S-60 models
S-65 models
4 Turn the engine off. Use a wrench to hold the
relief valve and remove the cap (item 23) on
the function manifold.
5 Adjust the internal hex socket. Turn it clockwise
to increase pressure or counterclockwise to
decrease pressure. Install the relief valve cap.
Tip-over hazard. Do not adjust
the relief valves higher than
specified.
6 Repeat steps 2 through 5 to confirm relief valve
pressure.
7 - 48
2600 psi 179.3 bar
2900 psi 200 bar
Genie S-60 & Genie S-65
How to Adjust the Boom Down
Relief Valve
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 diagnostic nipple (item 24) on the
function manifold.
2 Start the engine from the ground controls.
3 Hold the function enable switch to either side
and activate and hold the boom down toggle
switch with the boom fully lowered. Observe the
pressure reading on the pressure gauge.
Boom down relief valve specifications
Pressure
4 Turn the engine off. Use a wrench to hold the
relief valve and remove the cap (item 6) on
the function manifold.
5 Adjust the internal hex socket. Turn it clockwise
to increase pressure or counterclockwise to
decrease pressure. Install the relief valve cap.
Tip-over hazard. Do not adjust
the relief valves higher than
specified.
6 Repeat steps 2 through 5 and confirm relief
valve pressure.
Third Edition • First Printing
2100 psi
145 bar
Part No. 65196