Lingong Heavy Machinery Scissors Mobile Elevating Work Platform S2646E 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.

△! 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

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

Perform this step every 100 hours or 6 months, whichever comes first. The quality of the scissor arm wear-resistant block is crucial to the safe operation of the machine. The use of worn wear-resistant slider may cause damage to components and unsafe work risks.

Check the wear washer when the platform is retracted.

Measure the distance from the inner link tube on the battery box side of the non-steering end to the floor plane.

If the measurement result is less than 24 mm, replace the wear-resistant slider.

Measure the distance from the fork inner link tube at the battery side on the non-steering end of the machine to the plane of the floor slide.

Result of the second measurement

If the measurement result is less than 24 mm, replace the wear-resistant slider.

Apply lubricant between the chassis slide and the wear-resistant slider.

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.