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6. Operating Principles
The device uses an electric hydraulic pump to operate the hydraulic cylinder and raise the M and S carriages
directly.
The M and S carriages are mutually connected by the synchronizing cable, so align both carriages to
implement raise and lowering operations.
●Raise: Raising the operations lever turns the motor, so the hydraulic fluid is fed into the M and S
cylinders by the pump to raise the M and S carriages.
●Stop:
Releasing the operations lever stops the motor, and the hydraulic fluid is stopped by the check
valve, so the cylinders stop where they are.
●Lower: Lowering the operations lever opens the lowering valve, so the hydraulic fluid in the cylinder
returns to the oil tank via the lowering valve and flow control valve to lower the cylinders.
<Hydraulic Pipes Diagram>
Cradle
Check valve
Gear pump
(Built-in relief valve)
Motor
Oil tank
Lowering valve
Flow control valve
S carriage
M carriage
M cylinder
S cylinder
Fuse valve
Fuse valve
Upper cable pulley
Synchronizing cable
Upper cable pulley
S carriage
Wire end
M carriage
Lower wire pulley
Lower cable pulley
<Synchronizing Method>
