How to Do When Hydraulic System Fails? Manual Pump Becomes the On-Site "Lifesaver

On construction, maintenance, and warehouse job sites, engine failure, battery drain, or Sudden unresponsive hydraulic system occurs. At that point, the platform, boom, turntable, and wheels cannot move properly. The equipment is effectively "frozen." Operators may be left suspended mid-air, and the machine cannot be moved out of the way, causing delays and safety risks.

Most aerial work platforms rely on an engine or electric motor to drive the hydraulic system for lifting, steering, rotating, etc. When the following occur, the hydraulic system locks immediately:

Solution:

The manual pump is designed specifically for this problem. It requires no electricity or engine — only one operator, one pump lever, and correct valve block operation to bring the equipment back under controlled movement.

Correct Operating Procedure (Typical failure scenario):

1. Open the coverand locate the manual pump

Find the power unit and pump lever on the left side of the machine.

2. Place the lever onto the valve block

Refer to the instruction diagram on the valve block. Each valve controls one function.

3. Select the function and operate step by step

◦ Sleeve / cylinder lift: Find the corresponding valve, press it down, turn clockwise, then pump the lever.

◦ Arm / jib lift: Same procedure — the arm will lift or lower.

◦ Wheel steering: Operate the "right turn" and "left turn" valves to adjust wheel direction.

◦ Turntable rotation: Operate the "right rotation" and "left rotation" valves to adjust turntable orientation.

4. After completing the operation

Turn counterclockwise and pull the valve core out before moving to the next valve.

Three tips:

• Familiarizingyourself with valve block positions and corresponding functions (sleeve, arm, steering, rotation).
• Operating sequence: Press down → Turn clockwise → Pump the lever → Turn counterclockwise and pull out when done.
• The manual pump is for emergency and maintenance use only. Do not use it as a long-term replacement for the main hydraulic system.

The manual pump is not just a backup device — it is the last physical means of control on an aerial work platform. Power can fail, but safety and control should not. Learning how to use the manual pump in advance is the fastest solution when it matters most.