1. Clean the hydraulic oil in the hydraulic oil tank, clean the filter, replace the damaged filter screen, clean the magnetic plug, and re-add the hydraulic oil that is filtered and precipitated.

2, adjust the tilt cylinder, lifting cylinder and side shift cylinder V-sealing ring, press the nut, remove the lifting cylinder, tilt cylinder, side shift cylinder oil leakage phenomenon.

3. Replace the leaking (oil seal) seals and damaged joints on the pipeline.

First level maintenance technical requirements for hand brake, foot brake and test brake selection valve performance

1. Hand brake: lubricate the pin of the hand brake operating rod. Check and adjust the gap between the brake shoe and the brake drum to 0.4-0.6mm, the contact surface of more than 85%.

2, foot brake: lubricate each pin, adjust the pedal free travel to 10-15mm

3. Test the performance of the brake selection valve: Put the brake selection valve in the position where the power is not cut off on the upper and lower ramps, and its effect should be good and the effect is obvious.

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