| Malfunction | Cause analysis | Troubleshooting |
| Pump station does not work | Power failure, fuse blown | Replace the fuse |
| The platform does not rise | Hydraulic oil frozen | Replace with antifreeze hydraulic oil |
| Lifting crawling or hydraulic system vibration | Insufficient hydraulic oil, air inhaled | Add enough hydraulic oil to remove air |
| Pipe and joint oil leakage | The joint nut is loose; the O-ring seal is invalid; the pipe is aged and damaged. | Tighten the joint nut. Replace the O-ring seal. Replace the damaged pipe. |
| Platform drops automatically | The hydraulic system leaks oil; there is foreign matter in the solenoid valve; the solenoid valve body is worn; | Check the oil leak and repair it. Clean the solenoid valve. Replace the solenoid valve. |
| The platform does not fall | The scissor is stuck or there is a foreign object in the roller groove;Hydraulic oil frozen; | Repair the card and clear the wheel slot. Replace with anti-hydraulic oil. |