Service and Repair Manual
April 2017
Manifolds
72
GTH-1056
Part No. 1278145
How t o Set t he R ear Loc k-up Sys tem Pressur e
How to Set the Rear Lock-up
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 500 psi / 0 to 50 bar pressure
gauge into test port 'TR' 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 50 psi /
3.4 bar. The pressure setting is correct.
Proceed to step 11.
Result: The pressure gauge fails to read 50 psi
/ 3.4 bar. The pressure setting needs to be
adjusted. Proceed to step 7.
7
Turn the machine off. Hold the rear lockup
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.
Содержание GTH-1056
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Страница 128: ...Service and Repair Manual April 2017 118 Harness Map Control System Ground Single Joystick ...
Страница 129: ...April 2017 Service and Repair Manual 119 Harness Map Control System Dual Joystick ...
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Страница 131: ...April 2017 Service and Repair Manual Part No 1278145 GTH 1056 121 Harness Map Deutz TCD3 6 T4F Engine ...
Страница 132: ...Service and Repair Manual April 2017 122 Harness Map Deutz 3 6TCD T4F Engine ...
Страница 133: ...April 2017 Service and Repair Manual 123 Harness Map Perkins 1204 T4F Engine ...
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Страница 135: ...April 2017 Service and Repair Manual Part No 1278145 GTH 1056 125 Harness Map Work Lights ...
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Страница 137: ...April 2017 Service and Repair Manual 127 Harness Map Road Lights ...
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Страница 139: ...April 2017 Service and Repair Manual Part No 1278145 GTH 1056 129 Harness Map Enclosed Cab with Heat ...
Страница 140: ...Service and Repair Manual April 2017 130 Harness Map Enclosed Cab with Heat ...
Страница 141: ...April 2017 Service and Repair Manual 131 Harness Map Enclosed Cab with HVAC ...
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Страница 144: ...Service and Repair Manual April 2017 134 Harness Map Auxiliary Hydraulics Beacon and Top Gear Lockout ...
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