How to handle a hydraulic pump malfunction in a hydraulic lifting platform truck?

Below, Shengyu Lifting Equipment Manufacturing Plant will provide a comprehensive explanation:

First, stop the machine and troubleshoot.

If any abnormality is found in the hydraulic pump (such as inability to lift, abnormal noise, oil leakage, or insufficient pressure), immediately cut off the power, stop the operation, and move the hydraulic lifting platform truck to a safe area.

1. Hydraulic oil issues: Check if the oil level is too low and if the oil is cloudy or contaminated. Poor quality or contaminated hydraulic oil can clog the pump body and accelerate wear.

2. Seals and pipelines: Check the pump body and oil pipe connections for leaks. Aging seals and damaged pipelines can cause pressure loss.

3.Pump body malfunction: If oil and pipeline issues are ruled out, the problem is most likely due to wear or jamming of internal pump parts (such as plungers, vanes, and bearings).

Emergency Response

For urgent temporary use, simple emergency procedures can be performed according to the type of malfunction:

• Minor leakage: Replace aged seals, tighten pipe joints, and add hydraulic oil of the same type to the standard level.

• Insufficient pressure: Check and clean the hydraulic oil filter to prevent impurities from clogging the pump inlet.

• Complete inability to lift: Do not force operation to avoid further damage; immediately contact a professional hydraulic lifting platform truck team.

Prevention and maintenance

Hebei Shengyu Lifting recommends regular maintenance for hydraulic lifting platform trucks to reduce malfunctions at the source:

Change the hydraulic oil regularly (every 6-12 months), using the specified type of oil and avoiding mixing different brands.

Inspect pipelines and seals monthly, replacing worn parts promptly and cleaning filters.

Avoid overloading, follow standardized operating procedures, and reduce impact loads on the pump.

The hydraulic pump is the "heart" of the hydraulic lifting platform truck. Do not blindly disassemble it after a malfunction; professional handling is essential to ensure equipment lifespan and operational safety. With years of experience in lifting equipment services, Hebei Shengyu Lifting provides efficient repair, high-quality parts, and comprehensive maintenance solutions to help ensure stable equipment operation.