October 2020
Part No. 1268553GT
Z®-51/
31J
55
Service and Repair Manual
Manifolds
8-2
Valve Adjustments - Function
Manifold
How to Adjust the System
Relief Valve
Note: Perform this procedure with the boom in the
stowed position.
Note: Refer to Function Manifold Component list to
locate the system relief valve.
1 Connect a 0 to 5000 psi / 0 to 350 bar pressure
gauge to the test1 port on the function
manifold.
2 Start the engine from the ground controls.
3 Hold the function enable switch to the high
rpm position and activate and hold the primary
boom retract switch with the boom fully
retracted.
4 Observe the pressure reading on the pressure
gauge. Refer to Specifications,
Hydraulic
Specifications.
5 Turn the engine off. Use a wrench to hold the
relief valve and remove the cap.
6 Adjust the internal hex socket. Turn it clockwise
to increase the pressure or counterclockwise to
decrease the pressure. Install the relief valve
cap.
WARNING
Tip-over hazard. Do not adjust
the relief valve higher than
specified.
7 Repeat steps 2 through 5 and recheck relief
valve pressure.
8 Remove the pressure gauge.
How to Adjust the Secondary
Boom Down Relief Valve
Note: Perform this procedure with the boom in the
stowed position.
Note: Refer to Function Manifold Component list to
locate the secondary boom down relief valve.
1 Connect a 0 to 5000 psi / 0 to 350 bar pressure
gauge to the test1 port on the function
manifold.
2 Start the engine from the ground controls.
3 Hold the function enable switch to the high rpm
position and activate and hold the secondary
boom down switch with the secondary boom
fully lowered.
4 Observe the pressure reading on the pressure
gauge. Refer to Specifications,
Hydraulic
Specifications.
5 Turn the engine off. Use a wrench to hold the
relief valve and remove the cap.
6 Adjust the internal hex socket. Turn it clockwise
to increase the pressure or counterclockwise to
decrease the pressure. Install the relief valve
cap.
WARNING
Tip-over hazard. Do not adjust
the relief valve higher than
specified.
7 Repeat steps 2 through 5 and recheck relief
valve pressure.
8 Remove the pressure gauge.
Содержание Z-51/30J
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Страница 105: ...October 2020 Service and Repair Manual Platform Control Box Wiring Diagram Options 95 Z 51 31J Part No 1268553GT...
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Страница 107: ...October 2020 Service and Repair Manual 97 Wiring Diagram Battery Hydraulic Oil and Engine Oil Heater Options...
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Страница 115: ...October 2020 Service and Repair Manual Ground Control Box Terminal Strip Wiring Diagram AS 105...
Страница 117: ...October 2020 Service and Repair Manual Ground Control Box Switch Panel Wiring Diagram AS 107 Z 51 31J Part No 1268553GT...
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Страница 119: ...October 2020 Service and Repair Manual 109 Platform Control Box Wiring Diagram AS...
Страница 120: ...October 2020 Service and Repair Manual Platform Control Box Wiring Diagram AS 110 Z 51 31J Part No 1268553GT...
Страница 122: ...October 2020 Service and Repair Manual 112 Platform Control Box Switch Panel Wiring Diagram AS...
Страница 123: ...October 2020 Service and Repair Manual 113 Electrical Schematic CE...
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Страница 126: ...October 2020 Service and Repair Manual 116 Electrical Schematic CE...
Страница 127: ...October 2020 Service and Repair Manual 117 Ground Control Box Terminal Strip Wiring Diagram CE...
Страница 129: ...October 2020 Service and Repair Manual Ground Control Box Switch Panel Wiring Diagram CE 119 Z 51 31J Part No 1268553GT...
Страница 130: ...October 2020 Service and Repair Manual 120 Ground Control Box Switch Panel Wiring Diagram CE...
Страница 131: ...October 2020 Service and Repair Manual 121 Platform Control Box Wiring Diagram CE...
Страница 132: ...October 2020 Service and Repair Manual Platform Control Box Wiring Diagram CE 122 Z 51 31J Part No 1268553GT...
Страница 134: ...October 2020 Service and Repair Manual 124 Platform Control Box Switch Panel Wiring Diagram CE...
Страница 135: ...October 2020 Service and Repair Manual 125 Electrical Schematic Deutz TD 2 2 L3 Models CE...
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Страница 140: ...October 2020 Service and Repair Manual 130 Z 51 31J Part No 1268553GT Electrical Schematic Deutz TD 2 2 L3 Models CE...
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