When the control handle is pushed to the "lift" position, the compressed air in the reservoir will flow to the power take-off
cylinder, thus push the power take-off gear and make the gear pump start to work. Have been pressed by the gear
pump, the hydraulic fluid in the fuel tank will flow into the lower chamber of the hydraulic cylinder through the single
check valve and the selector valve to push the piston rod and lift the carriage via the connecting rod.
When the piston of the hydraulic cylinder reaches the oil drain hole, the high-pressure oil will flow back into the fuel tank
through the oil drain hole and the pipe. Meanwhile, the carriage will stop lifting and maintain the maximum lifting angle.
When the control handle is pushed to the "fall" position, the compressed air in the reservoir will flow to the selector valve
and keep it in the open state. At that time, the upper and lower chamber of the hydraulic cylinder is interlinked with the
fuel tank, and the carriage's weight will force the oil in the lower chamber of the hydraulic cylinder to flow through the
selector valve and flow back into the fuel tank, thus enable the carriage to fall down. When the control handle is at the "
pause" position, the selector valve is closed. The gear pump will stop working and the oil in the lower chamber of the
hydraulic cylinder will be sealed, enabling the carriage to stop at any position during the process of lifting or falling.
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OWNER爷S MANUAL
JAC HEAVY DUTY TRUCK
2. Operation Instructions
荫
Switching on the gear pump
Press the clutch pedal and push the control handle to the "lift" position. Re鄄
lease the clutch pedal smoothly and the gear pump will start working.
荫
Carriage lift
After the gear pump is started, the carriage begins rising. Increase the throttle
and the lifting will be faster. The increase of the throttle is not permitted when
the carriage is lifted to the maximum lifting angle. Otherwise, the cylinders and
other tilting mechanisms will be damaged.
荫
Carriage fall
Press the clutch pedal and push the control handle to the "fall" position, the
carriage will start to fall. When the carriage is back at its original place, push the
control handle to "pause" so as to avoid the accidental lifting of the carriage.
荫
Pause control
1. During the process of carriage lift, press the clutch pedal and push the
control handle to "pause"
2. During the process of carriage fall, push the control handle to "pause".
Note: The operation of lifting after pausing is th e same as "Switching on the
gear pump" and "Carriage lift". As for the operation of falling after pausing, you
only need to push the control handle to "fall".
The position of the handle
(from left to right)院Lift寅Pause寅Fall
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