Lingong Heavy Machinery Scissors Mobile Elevating Work Platform S4650E II

CAUTION: Replacement of the return filter element is essential for the good performance and service life of the machine. Dirty or clogged filters may affect the machine performance, and their continuous use will cause damage to parts. The filter element should be replaced more frequently in harsh working environment.

WARNING: scalding hazard Beware of hot oil. Exposure to hot oil may result in severe burns.

CAUTION: The return filter of the hydraulic tank is installed in the middle area between the function valve block and the hydraulic power unit.

Clean the hydraulic oil spilled around the filter and remove the filter with a wrench.

Disassemble the filter and renew the filter element.

Apply a layer of hydraulic oil to the filter sealing ring and tighten it with a wrench.

Use the marker pen to note the replacement time and date on the filter element replacement sheet.

Turn the key switch to the ground control, and pull out the red emergency stop button on the GCU and PCU.

Press and pull down the lift function selection button.

Monitor whether the system pressure is normal

Check whether the lift pressure system is normal

Check whether the steering system pressure is normal

Check whether the running system pressure is normal

Check whether any oil pipes and joints are loose

Check the oil cylinder for oil leakage

Check each spool for oil leakage

Check whether the fork oil pipe is fixed firmly

Check whether the walking oil pipe fixing clip is loose

CAUTION: Perform this procedure with the platform retracted.

Visual inspection of the fluid level on the side of the hydraulic tank

Result: the hydraulic oil level is at the mark of the tank.

CAUTION: During addition of the hydraulic oil, it is needed to use the corresponding hydraulic oil according to the operating environment and temperature.

Sign off on the hydraulic oil check

DANGER: electric shock/explosion hazard. Do not wear rings, watches and other jewelry.

Check whether the ground wires under the chassis are missing or damaged.

Inspect for burned, scratched, corroded, bent or loose wires in the interior of GCU box.

Inspect for burned, scratched, corroded, bent or loose wires in the hydraulic valve block wire.

Inspect for burned, scratched, corroded, bent or loose wires in the wire in battery area wire in battery tray.

Inspect for burned, scratched, corroded, bent or loose wires in the interior of PCU box.

Turn the key switch to the PCU and pull out the red emergency stop button on the GCU and PCU.

Raise the platform to a certain height from the ground.

Move the safety arm to the middle of the scissor shaft sleeve and rotate it down to the vertical state.

Check whether the buttons of the PCU panel operate normally

Check whether the PCU emergency stop switch is secure

Check whether the switch operation is sensitive

Check if the spring harness is damaged

Check whether the PCU harness connector is secure

Check whether the PCUharnessconnector is defaced

Check whether the PCU harness is extruded or broken

Is the pressure switch wiring firm