Lingong Heavy Machinery Scissors Mobile Elevating Work Platform S4046 II

Warning: This check requires trained personnel with PPE!

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.

Select the result of the measurement

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.

Select the result of the measurement

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

Sign off on the wear-resistant slider check

CAUTION: Perform this procedure with the platform retracted.

Visually inspect the fluid level on the side of the hydraulic tank. Is the hydraulic oil level 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

Warning: This procedure should be performed every 50 hours or quarterly, whichever comes first.

The hydraulic oil tank is a vented tank. There is an air cleaner inside the vent cap, which may become blocked over time. In case of vent cap failure or improper installation, once impurities enter the hydraulic system, component damage may occur. The vent cap should be checked frequently especially in harsh working environment.

Hydraulic tank vent cap removed

Hydraulic tank vent cap renewed

Sign off on the hydraulic tank vent cap replacement

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.

Upload a photo of the filter with the noted replacement time and date.

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