Genie Z-22 Bi-Energy, Service And Repair Manual

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September 2015 Service and Repair Manual
Manifolds
Part No. 1268515 Z-34/22 Bi-Energy 53
How to Adj ust the Secondary Boom Down R elief Valve
How to Adjust the Secondary
Boom Down Relief Valve
Note: Perform this procedure with the boom in the
stowed position.
Note: Refer to Function Manifold Component list to
locate the secondary boom down relief valve.
1 Connect a 0 to 5000 psi / 0 to 350 bar
pressure gauge to the test port on the function
manifold.
2 Move and hold the function enable toggle
switch to either side and hold the secondary
boom up/down toggle switch in the down
direction with the secondary boom fully
lowered.
3 Observe the pressure reading on the pressure
gauge. Refer to Specifications, Hydraulic
Specifications .
4 Turn the machine off. Hold the secondary
boom down relief valve with a wrench and
remove the cap.
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 4 and recheck relief
valve pressure.
7 Remove the pressure gauge.
How to Adj ust the Tur ntabl e R otate R elief Valve
How to Adjust the Turntable
Rotate Relief Valve
Note: Perform this procedure with the boom in the
stowed position.
Note: Refer to Function Manifold Component list to
locate the turntable rotate relief valve.
1 Connect a 0 to 3000 psi / 0 to 200 bar
pressure gauge to the test port on the function
manifold.
2 Turn the key switch to ground control and pull
out the red Emergency Stop button to the on
position.
3 Move and hold the function enable toggle
switch to either side and move and hold the
turntable rotate toggle switch in the right
direction (until turntable stops against the
rotation stop). Observe the pressure reading
on the pressure gauge. Refer to
Specifications, Manifold Component
Specifications.
4 Turn the machine off. Hold the turntable relief
valve(s) with a wrench and remove the cap.
5 Adjust the internal hex socket. Turn it
clockwise to increase the pressure or
counterclockwise to decrease the pressure.
Then install the relief valve cap.
Tip-over hazard. Do not adjust
the relief valve higher than
specified.
6 Repeat steps 2 and 3 to confirm the relief
valve pressure setting.
7 Remove the pressure gauge.