October 2018
Service and Repair Manual
Hydraulic Pumps
Part No. 1268557GT
Z®-135
/70
117
5
Adjust the function pump standby pressure.
Turn the adjustment screw clockwise to
increase the pressure or counterclockwise to
decrease the pressure. Tighten the set screw.
6
Turn the engine off and remove the pressure
gauge.
How t o Adj ust t he Functi on Pump Press ure Compens at or
How to Adjust the Function Pump
Pressure Compensator
Note: Two people will be required to perform this
procedure.
1
Confirm the system relief pressure is set to
specification. Refer to Repair Procedure,
Valve Adjustments - Function Manifold
.
2
Connect a 0 to 5000 psi / 0 to 350 bar
pressure gauge to the test port on the function
manifold
3
Start the engine from the ground controls and
change the rpm to high idle.
4
Push and hold the high speed function enable
button (rabbit symbol). Do not activate any
boom functions.
5
Observe the pressure reading on the pressure
gauge.
Result: The gauge should show 2900 psi /
200 bar.
Result: If the gauge does not show 2900 psi /
200 bar, proceed to step 6 to adjust the
function pump pressure compensator.
6
Loosen the set screw for the pressure
compensator adjustment screw.
1 pressure compensator set screw
2 pressure compensator adjustment screw
7
Adjust the pressure compensator pressure.
Turn the adjustment screw clockwise to
increase the pressure or counterclockwise to
decrease the pressure. Tighten the set screw.
Component damage hazard. Do
not adjust the pressure
compensator higher than
specified.
8
Turn the engine off and remove the pressure
gauge.
Summary of Contents for Genie Z-135/70
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Page 37: ...October 2018 Service and Repair Manual Specifications Part No 1268557GT Z 135 70 23 T ...
Page 135: ...October 2018 Service and Repair Manual Manifolds Part No 1268557GT Z 135 70 121 ...
Page 137: ...October 2018 Service and Repair Manual Manifolds Part No 1268557GT Z 135 70 123 ...
Page 139: ...October 2018 Service and Repair Manual Manifolds Part No 1268557GT Z 135 70 125 ...
Page 141: ...October 2018 Service and Repair Manual Manifolds Part No 1268557GT Z 135 70 127 ...
Page 147: ...October 2018 Service and Repair Manual Manifolds Part No 1268557GT Z 135 70 133 ...
Page 153: ...October 2018 Service and Repair Manual Manifolds Part No 1268557GT Z 135 70 139 ...
Page 155: ...October 2018 Service and Repair Manual Manifolds Part No 1268557GT Z 135 70 141 ...
Page 159: ...October 2018 Service and Repair Manual Manifolds Part No 1268557GT Z 135 70 145 ...
Page 161: ...October 2018 Service and Repair Manual Manifolds Part No 1268557GT Z 135 70 147 ...
Page 233: ...October 2018 Service and Repair Manual 219 Generator Wiring Schematic ...
Page 236: ...Service and Repair Manual October 2018 222 Hydraulic Generator Welder Option ...
Page 242: ...Service and Repair Manual October 2018 228 Hydraulic Schematic from serial number 535 ...
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