Unic URW295CR, Maintenance Manual

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High pressure line
Tank line
Pilot pressure line
Feed‑back line
Solenoid valve
for storing hook
Accelerator
cylinder
Secondary
pressure
Primary
pressure
Solenoid valve
for unloading
Set bolt（stop valve）
Main relief valve
Pressure reducing valve
Pump
Back pressure valve
Pressure
regulator
valve
Raising SOL
Lowering SOL
3.9MPa(40kgf/cm )
Emergency screw（stop valve）
2
1.0MPa
(10kgf/cm )
Up SOL
Down SOL
Retracting SOL
Extending SOL
C.W. SOL
Ext. SOL
C.C.W. SOL
Tank
Shuttle valve
Regulator valve
for each control
element
Shuttle valve
Regulator valve
for each control
element
Shuttle valve
Regulator valve
for each control
element
Shuttle valve
Regulator valve
for each control
element
Regulator valve
for each control
element
11.1 Hydraulic System
2
1.0MPa
(10kgf/cm )
Working
pressure
Gauge Port
Pilot pressure
Gauge port
（１１−１）
Slewing
Telescope
Hoist
Derrick
Outrigger
Solenoid valve
for accelerator
20.6MPa(210kgf/cm )
Relief valve for storing hook
3.0MPa(30kgf/cm )
2
2
2