
1. Hydraulic system failure
Problem: Insufficient hydraulic system pressure or leakage.
Solution: Check whether the hydraulic oil is sufficient and replace the aged hydraulic oil; Check whether the hydraulic pipes and joints are leaking and repair or replace them; Regularly maintain the hydraulic pump and valve to ensure their normal operation.
2. The crane arm cannot be extended or retracted
Problem: The crane arm is stuck or the extension and retraction are not smooth.
Solution: Check the guide rails and pulleys of the telescopic arm, remove debris and rust; lubricate all moving parts; if the telescopic cylinder fails, it should be replaced or repaired in time.
3. Electrical system failure
Problem: The control panel fails or the operation is unresponsive.
Solution: Check the power wiring and fuse to ensure that the power supply is normal; inspect the control panel and related electrical components, and replace them in time if damaged; regularly inspect and maintain the electrical system.
4. The outrigger cannot be deployed or retracted
Problem: The outrigger system cannot operate normally.
Solution: Check the hydraulic cylinder and control valve of the outrigger to ensure its normal operation; clean the connection parts and moving parts of the outrigger to prevent foreign objects from getting stuck; regularly lubricate and maintain the outrigger system.
5. Frequent activation of overload protection system
Problem: The overload protection system is frequently activated, affecting normal operation.
Solution: Check whether the load weight exceeds the rated load of the equipment, and reduce the load weight if necessary; calibrate the overload protection device to ensure that it is set correctly; regularly inspect and maintain the overload protection system to ensure its sensitivity and accuracy.
By understanding the above common faults and solutions, the operating efficiency and safety of small spider cranes can be effectively improved, the occurrence rate of faults can be reduced, and the long-term stable operation of the equipment can be ensured. For more technical support, please contact the professional team of SWLLIFT EQUIPMENT CO., LTD.






