April 2018
Service and Repair Manual
Hydraulic Pump
Part No. 1287211GT
GTH-1056
49
4 Loosen the set screw for the standby pressure
adjustment screw.
1 standby pressure adjustment screw
2 set screw
3 hydraulic supply line (from tank)
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.
Bodily injury hazard. Spraying
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to
squirt or spray.
How to Adj ust the Functi on Pum p Pressure Com pensator
How to Adjust the Function Pump
Standby Pressure
Note: Two people will be required to perform this
procedure.
1 Connect a 0 to 5000 psi / 0 to 350 bar
pressure gauge to test port 'TP' on the primary
function manifold. Refer to
Primary Function
Manifold Components
.
2 Start the engine and allow the engine to run at
low idle.
3 Fully retract the boom.
4 Continue to activate the boom retract function
and observe the pressure reading on the
pressure gauge.
Result: The pressure gauge reads
3190±50 psi / 220±3.4 bar. The pump is
functioning correctly. Proceed to step 7.
Result: The pressure gauge fails to read
3190±50 psi / 220±3.4 bar. The pressure
setting needs to be adjusted. Proceed to step
5.
Summary of Contents for Genie GTH1056
Page 63: ...April 2018 Service and Repair Manual Manifolds Part No 1287211GT GTH 1056 53 ...
Page 65: ...April 2018 Service and Repair Manual Manifolds Part No 1287211GT GTH 1056 55 ...
Page 115: ...April 2018 Service and Repair Manual 105 Harness Map Harness Legend ...
Page 118: ...Service and Repair Manual April 2018 108 Harness Map Control System Electronic Joystick ...
Page 119: ...April 2018 Service and Repair Manual 109 Harness Map Deutz T4F Engine ...
Page 122: ...Service and Repair Manual April 2018 112 Harness Map Deutz T3 Engine ...
Page 123: ...April 2018 Service and Repair Manual 113 Harness Map Perkins T4i Engine ...
Page 126: ...Service and Repair Manual April 2018 116 Harness Map Perkins T3 Engine ...
Page 127: ...April 2018 Service and Repair Manual 117 Harness Map Road Lights ...
Page 128: ...Service and Repair Manual April 2018 118 GTH 1056 Part No 1287211GT Harness Map Road Lights ...
Page 129: ...April 2018 Service and Repair Manual Part No 1287211GT GTH 1056 119 Harness Map Work Lights ...
Page 130: ...Service and Repair Manual April 2018 120 Harness Map Work Lights ...
Page 131: ...April 2018 Service and Repair Manual 121 Harness Map Deutz HVAC Option ...
Page 134: ...Service and Repair Manual April 2018 124 Harness Map Perkins HVAC Option ...
Page 135: ...April 2018 Service and Repair Manual 125 Harness Map Enclosed Cab Heater ...
Page 138: ...Service and Repair Manual April 2018 128 Harness Map Proximity Sensor Beacon Lockout Options ...
Page 139: ...April 2018 Service and Repair Manual 129 Electrical Schematic View 1 ...
Page 142: ...Service and Repair Manual April 2018 132 Electrical Schematic View 2 ...
Page 143: ...April 2018 Service and Repair Manual 133 Electrical Schematic Deutz T4F Eng Harness ...
Page 146: ...Service and Repair Manual April 2018 136 Electrical Schematic Deutz T4F Eng Harness ...
Page 147: ...April 2018 Service and Repair Manual 137 Electrical Schematic Deutz T4F Eng Harness ...
Page 150: ...Service and Repair Manual April 2018 140 Electrical Schematic Deutz T3 Eng Harness ...
Page 151: ...April 2018 Service and Repair Manual 141 Hydraulic Schematic ...
Page 152: ...Service and Repair Manual April 2018 142 GTH 1056 Part No 1287211GT Hydraulic Schematic ...
Page 153: ...April 2018 Service and Repair Manual Part No 1287211GT GTH 1056 143 Hydraulic Schematic ...
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