Service and Repair Manual
April 2018
Manifolds
58
GTH-1056
Part No. 1287211GT
7-6
Valve Adjustments - Secondary
Function Manifold
How to Set the Parki ng Br ake System Pr essure
How to Set the Parking Brake
System Pressure
Note: Be sure that the hydraulic oil level is visible in
the inspection glass of the hydraulic tank.
1 Install a 0 to 1000 psi / 0 to 100 bar pressure
gauge into test port 'TP' at the top of the
primary function manifold, Refer to Primary
Function Manifold Components.
2 Start the engine. Allow the engine to idle after
warming the engine to operating temperature.
3 Without operating any machine controls,
observe the reading on the pressure gauge.
Result: The pressure gauge reads 450 ±25 psi
/ 31 ±1.7 bar. The pump is functioning
correctly.
Result: The pressure gauge fails to read 450
±25 psi / 31 ±1.7 bar. The pressure setting
needs to be adjusted. Refer to Repair
Procedure,
How to Adjust the Function Pump
Pressure
.
4 Turn the machine off. Remove the pressure
gauge from the test port.
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.
5 Install a 0 to 1000 psi / 0 to 100 bar pressure
gauge into test port 'TPB' at the top of the
secondary function manifold, Refer to
Secondary Function Manifold Components.
6 Start the engine. Allow the engine to idle.
Result: The pressure gauge reads 400 psi /
27.5 bar. The pressure setting is correct.
Proceed to step 11.
Result: The pressure gauge fails to read
400 psi / 27.5 bar. The pressure setting needs
to be adjusted. Proceed to step 7.
7 Turn the machine off. Hold the brake pressure
reducing/relief valve with a wrench and
remove the cap.
8 Adjust the internal hex socket. Turn it
clockwise to increase the pressure or
counterclockwise to decrease the pressure.
Component damage hazard. Do
not adjust the relief valve
pressures higher than
specifications.
9 Install the relief valve cap.
10 Repeat this procedure beginning with step 6.
11 Turn the machine off. Remove the pressure
gauge from the test port.
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.
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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