Service and Repair Manual
October 2018
Manifolds
128
Z®-135
/70
Part No. 1268557GT
8-3
Valve Adjustments -
Function Manifold
How to Adjust the System Relief
Valve (before serial number 440)
Note: Perform this procedure with the boom in the
stowed position.
Note: Auxiliary power will be used to perform this
procedure. Do not start the engine.
Note: Refer to Function Manifold Component list to
locate the system relief valve.
1
Hold the relief valve stem with a hex wrench
and remove the cap.
2
Turn the internal hex socket counterclockwise
several turns. Do not allow the relief valve to
come apart. Install the relief cap.
3
Connect a 0 to 5000 psi / 0 to 350 bar
pressure gauge to the test port on the function
manifold
4
Simultaneously push and hold the auxiliary
power button and the primary boom retract
button with the primary boom fully retracted.
Observe the pressure reading on the pressure
gauge. Refer to Specifications,
Hydraulic
Component Specification
.
5
Hold the relief valve stem with a hex wrench
and remove the cap.
6
Adjust the internal hex socket. Turn it
clockwise to increase the pressure. Install the
relief cap.
Tip-over hazard. Do not adjust
the relief valve higher than
specified.
7
Repeat step 4 to confirm relief valve pressure.
8
Remove the pressure gauge.
How t o Adj ust t he System Reli ef Val ve
How to Adjust the System Relief
Valve (after serial number 439)
Note: Perform this procedure with the boom in the
stowed position.
Note: Auxiliary power will be used to perform this
procedure. Do not start the engine.
Note: Refer to Function Manifold Component list to
locate the system relief valve.
1
Hold the relief valve stem with a hex wrench
and loosen the lock nut.
2
Turn the valve stem counterclockwise several
turns. Do not allow the relief valve to come
apart. Tighten the lock nut.
3
Connect a 0 to 5000 psi / 0 to 350 bar
pressure gauge to the test port on the function
manifold
Содержание Genie Z-135/70
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Страница 229: ...October 2018 Service and Repair Manual 215 Perkins 1104C 44 and 804D 33T Engine Electrical Schematic ...
Страница 232: ...Service and Repair Manual October 2018 218 Cummins B4 5L and B3 3T Engine Electrical Schematic ...
Страница 233: ...October 2018 Service and Repair Manual 219 Generator Wiring Schematic ...
Страница 234: ...Service and Repair Manual October 2018 220 Z 135 70 Part No 1268557GT Generator Wiring Schematic ...
Страница 235: ...October 2018 Service and Repair Manual Part No 1268557GT Z 135 70 221 Hydraulic Generator Welder Option ...
Страница 236: ...Service and Repair Manual October 2018 222 Hydraulic Generator Welder Option ...
Страница 237: ...October 2018 Service and Repair Manual 223 Hydraulic Schematic before serial number 180 except for serial number 102 ...
Страница 240: ...Service and Repair Manual October 2018 226 Hydraulic Schematic serial number 102 and from serial number 180 to 534 ...
Страница 241: ...October 2018 Service and Repair Manual Part No 1268557GT Z 135 70 227 Hydraulic Schematic from serial number 535 ...
Страница 242: ...Service and Repair Manual October 2018 228 Hydraulic Schematic from serial number 535 ...
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