September 2021
Service and Repair Manual
Manifolds
Part No. 1268498GT
Z®-30/20N • Z®-30/20N RJ •
Z®-34/22 • Z®-34/22N
51
How to Adju st th e Seco nda ry Boo m Dow n Relief Valve
How to Adjust the Secondary
Boom Down Relief Valve
Note: Perform this procedure with the boom in the
stowed position.
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
secondary boom up/down toggle switch in the
down direction with the secondary boom fully
lowered. Observe the pressure reading on the
pressure gauge. Refer to Specifications,
Manifold Component Specifications.
4 Turn the machine off. Hold the secondary
boom down relief valve with a wrench and
remove the cap (item E).
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.
How to Adju st th e Prim ary Bo om Ext end R elief Valv e
How to Adjust the Primary Boom
Extend Relief Valve
Note: Perform this procedure with the boom in the
stowed position.
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
primary boom extend/retract toggle switch in
the extend direction with the primary boom
fully extended. Observe the pressure reading
on the pressure gauge. Refer to
Specifications,
Manifold Component
Specifications.
4 Turn the machine off. Hold the primary boom
extend relief valve with a wrench and remove
the cap (item G).
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.
Содержание Genie 20N RJ
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Страница 83: ...September 2021 Service and Repair Manual 71 Power Cable Wiring Diagram ...
Страница 86: ...Service and Repair Manual September 2021 74 Drive Contactor Panel Wiring Diagram ...
Страница 87: ...September 2021 Service and Repair Manual 75 Manifold and Limit Switch Wiring Diagram ...
Страница 90: ...Service and Repair Manual September 2021 78 LVI BCI Option Wiring Diagram ...
Страница 91: ...September 2021 Service and Repair Manual 79 Charger Interlock Option ...
Страница 94: ...Service and Repair Manual September 2021 82 CTE Option CE Models ...
Страница 95: ...September 2021 Service and Repair Manual 83 Hydraulic Schematic ...
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