COMPONENT OPERATION / Others
T3-12-1
PILOT SHUT-OFF VALVE
The pilot shut-off valve is a munually operated
selection valve, and by operating the pilot shut-off lever,
rotates the spool in order to turn ON and OFF pilot
pressure oil to the pilot valve.
When Pilot Shut-Off Lever is in LOCK Position
When the pilot shut-off valve is turned OFF, pressure
oil from the pilot pump does not flow to the pilot valve.
Pressure oil at the pilot valve side flows to the
hydraulic oil tank.
When Pilot Shut-Off Lever is in UNLOCK Position
When the pilot shut-off valve is turned ON, the drain
circuit is blocked and pressure oil from the pilot pump
flows to the pilot valve.
Section Z-Z
T4GB-03-12-001
T4GB-03-12-002
A1 - Auxiliary
A4 - To Pilot Valve
T1 - From Pilot Valve
T3 - From Pilot Valve (Optional)
A2 - Auxiliary
A5 - Auxiliary
T2 - Auxiliary
T4 - To Hydraulic Oil Tank
A3 - To Pilot Valve (Optional)
P - From Brake/Pilot Pump
From Brake/
Pilot Pump
To Pilot
Valve
A2
A1
T1
T2
A3
Z
Z
A4
T4
T3
P
A5
Summary of Contents for ZW180
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Page 8: ...4GDT 1 2 Blank ...
Page 10: ...GENERAL Specification T1 1 2 Blank ...
Page 38: ...GENERAL Component Specifications T1 3 14 Blank ...
Page 39: ...MEMO ...
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Page 42: ...4GDT 2 2 Blank ...
Page 56: ...SYSTEM Control System T2 1 14 Blank ...
Page 82: ...SYSTEM Control System T2 1 40 Blank ...
Page 92: ...SYSTEM Control System T2 1 50 Blank ...
Page 106: ...SYSTEM Control System T2 1 64 Blank ...
Page 116: ...SYSTEM ECM System T2 2 10 Blank ...
Page 128: ...SYSTEM Hydraulic System T2 3 12 Blank ...
Page 147: ...SYSTEM Hydraulic System T2 3 31 Blank ...
Page 150: ...SYSTEM Hydraulic System T2 3 34 Blank ...
Page 184: ...SYSTEM Electric System T2 4 34 Blank ...
Page 185: ...MEMO ...
Page 186: ...MEMO ...
Page 195: ...COMPONENT OPERATION Pump Device T3 1 7 Blank ...
Page 212: ...COMPONENT OPERATION Control Valve T3 2 4 T4GB 03 02 003 1 2 3 4 5 7 8 9 10 11 7 6 ...
Page 214: ...COMPONENT OPERATION Control Valve T3 2 6 T4GB 03 02 003 1 2 3 4 5 7 8 9 10 11 7 6 ...
Page 226: ...COMPONENT OPERATION Control Valve T3 2 18 Blank ...
Page 232: ...COMPONENT OPERATION Control Valve T3 2 24 Blank ...
Page 248: ...COMPONENT OPERATION Steering Pilot Valve T3 4 6 Blank ...
Page 258: ...COMPONENT OPERATION Steering Valve T3 5 10 Blank ...
Page 274: ...COMPONENT OPERATION Pilot Valve T3 6 16 Blank ...
Page 282: ...COMPONENT OPERATION Pilot Valve T3 6 24 Blank ...
Page 299: ...COMPONENT OPERATION Ride Control Valve T3 8 5 Blank ...
Page 306: ...COMPONENT OPERATION Ride Control Valve T3 8 12 Blank ...
Page 348: ...COMPONENT OPERATION Drive Unit T3 9 42 Blank ...
Page 371: ...MEMO ...
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