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Common problems and solutions of hydraulic elevator

Common problems and solutions of hydraulic elevator

Reasons for failure of hydraulic lift:

1. The motor power is abnormal or reversed;

2. There is no hydraulic oil in the fuel tank or there is not enough oil;

3. The oil filter is seriously blocked;

4. The normally closed valve is dirty;

5. The normally closed valve and the motor are energized at the same time;

6. Insufficient setting pressure of the pressure regulating valve;

7. Gear pump is worn out or damaged;

8. Aging of hydraulic oil;

9. The emergency bolt is not closed;

10. The connection between the suction pipe and the gear pump is loose or leaking;

Exclusion method of hydraulic elevator not raising:

1. Connect the motor power correctly or adjust the steering;

2. Add hydraulic oil (32 # in winter and 46 # in summer);

3. Clean up the oil filter or replace the hydraulic oil;

4. Remove the normally closed valve and clean it with a cleaning agent;

5. Correct wiring. When the motor is powered on, the normally closed valve is powered off.

6, adjust the pressure regulating valve; (but the motor is blocked)

7. Replace the gear pump;

8. Replace the hydraulic oil;

9, shut down the emergency bolt;

10. Fasten the suction pipe;

Causes of failure of hydraulic lift:

1. The power of the normally closed valve is not connected or the voltage is insufficient;

2. Normally closed valve coil voltage and voltage type do not match the power supply voltage and voltage type;

3. Normally closed valve coil burns out;

4. The cap of the normally closed valve is loose;

5. The descending speed regulating valve is closed;

6. The normally closed valve is stuck;

Elimination method of the hydraulic lift does not descend:

1. Correct wiring and check voltage;

2. Check the voltage and voltage type (AC or DC) to make the voltage and type provided by the power supply consistent with the voltage and type required for the normally closed valve coil;

3. Replace the normally closed valve coil;

4. Tighten the normally closed valve back cap;

5. Open the descending speed regulating valve;

6. Remove the normally closed valve for cleaning;

Reasons for the failure of the hydraulic elevator to descend after rising:

1. The normally closed valve is dirty or the one-way valve is dirty;

2. The emergency bolt is not tightened;

3. Oil leakage or leakage from the oil tank;

How to remove the hydraulic elevator from rising and falling:

1. Remove the normally closed valve or check valve and clean or replace it;

2. Tighten the emergency bolts;

3. Check the oil circuit and cylinder for processing;

Causes of abnormal speed, hydraulic motor overheating and oil cylinder crawling during hydraulic elevator ascent:

1. The normally closed valve is dirty;

2. The oil filter is blocked or the suction pipe is loose;

3. Deterioration of hydraulic oil or insufficient oil quantity;

4. The power cord is too long (220v);

5. Leakage in the pipeline causes the oil tank to crawl;

6. The emergency bolt is loosened;

7. Deformed or tight seal of the oil cylinder makes the oil cylinder crawl;

In the process of lifting the hydraulic elevator, the speed is abnormal, the motor is overheated and the cylinder is crawling.

1.Clean the normally closed valve;

2. Clean up the oil filter or fasten the suction pipe;

3. Replace or add hydraulic oil;

4. Shorten the power cord;

5, check the processing pipeline;

6. Tighten the emergency bolt;

7. Replace the oil cylinder;

Failure reason of too slow or too fast descending process of hydraulic elevator: Inaccurate adjustment of descending speed regulating valve;

The lifting method of the hydraulic elevator is too slow or too fast.

The above is the description of common problems and solutions of hydraulic lifts. Only for friends who have problems with hydraulic lifts. Our Jinnuo Hydraulic Lift Factory is located in Jinan Hydraulic Lift Industrial Park, Shandong Province. It is located on National Road 220, with convenient transportation and beautiful environment. Since its establishment, the company has been producing various types of hydraulic lifts, lifting freight elevators, home elevators, boarding bridges, and height-limiting bars. , And other hydraulic equipment mainly, to provide our customers with a full range of services in design, installation, maintenance, welcome customers in demand to visit the factory calls!

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