1. Oil quality and level of hydraulic oil
During the whole lifting process of the wheelchair, the hydraulic ground at this position shall be 40 ~ 50mm higher than the bottom of the box. If the hydraulic oil is found to be dark, sticky or with gravel and other foreign matters, it shall be replaced in time. Regularly check the China wheelchair lift roller, center shaft and bearing, cylinder pin and bearing, boom hinge and bearing for wear.
2. The overflow valve cannot be adjusted at will
Each component of the wheelchair lift system operates under the specified pressure. After adjusting the relief valve at will, the hydraulic system may operate abnormally. When checking under the working platform of wheelchair lift, it is necessary to lift and support the working platform of wheelchair lift to prevent the sudden descent of wheelchair lift.
