Lingong Heavy Machinery Scissors Mobile Elevating Work Platform S3246 II

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

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

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

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

Warning: Failure of tires and hubs may cause the machine to tip over. If the failure isn’t found or eliminated in time, the machine parts will be damaged.

Check the tire tread and sides for scratches, cracks, punctures and other abnormal wear.

Check the hub for damage, bending and cracking.

Remove the cotter pin and check the nut torque.

CAUTION: New cotter pins must be used when reinstalling.

Fit and lock the new cotter pin. Nut torque without lubrication 410-540N.m

CAUTION: Model suitable for electrical driven machine.

Check the torque of all the bolts. Torque of the bolt without lubrication 90N.m

Lubricate the steering knuckle.

Check whether the bolts of the whole machine are loose and make abnormal noise

Check whether the circlip and gasket of the scissor arm are invalid

Check whether the emergency lowering device is normal

Check the platform, fork and chassis for deformation and open weld

Check whether the paint of the complete vehicle falls off

Check whether the safety identification is true or stained

Check whether the manuals and labels are missing, blurred or damaged

Check overall performance and various limit switches.

△! WARNING: it is forbidden to carry out inspection and maintenance when the power is on.

Check the motor at least once every 100 hours or half a year according to the following methods, whichever comes first.

1) External inspection to keep the outer surface of the motor clean.

2) Open the protective cover and clean up the carbon deposit.

3) Check or replace the bearing, and listen carefully to the bearing for abnormal noise during operation.

4) Check the brush wear and replace the brush as appropriate.

2. Fault analysis and troubleshooting

Fault phenomenon Cause Troubleshooting method