What does the secondary maintenance of forklifts include?

What is the second-level technical maintenance?

In addition to the first-level technical maintenance items, the following work is added:

1. Clean each oil tank, filter and pipeline, and check for corrosion and cracking. After cleaning, do not wipe with yarn heads or cloth with fibers.

2. Clean the torque converter and gearbox, check the wear of parts, and replace new oil.

3. Check the drive shaft bearings and change the direction of the universal joint cross shaft as needed.

4. Check the tightness of each part of the drive axle and whether there is oil leakage, and clear the air holes. Disassemble and inspect the main reducer, differential, and wheel reducer, adjust the axial clearance of the bearings, and add or replace lubricating oil.

5. Disassemble, adjust and lubricate the front and rear wheel hubs, and perform half-axle transposition.

6. Clean the brakes and adjust the clearance between the brake drum and the brake shoe friction plate.

7. Clean the steering gear and check the free rotation of the steering wheel.

8. Disassemble and clean the gear oil pump, and pay attention to checking the wear of the gears, housing and bearings.

9. Remove the multi-way valve and check the clearance between the valve stem and the valve body. Do not remove the safety valve if it is not necessary.

10. Check whether the steering knuckle is damaged or cracked, the matching of the steering axle kingpin and the steering knuckle, and the wear of the longitudinal and transverse tie rods and steering arm joints.

11. Remove the tires, remove the rust and paint the rims, check the inner and outer tires and cushions, change positions and inflate according to regulations.

12. Check the connection and tightness of the hand brake parts, and adjust the working stroke of the hand brake lever and foot brake pedal.

13. Check the battery liquid specific gravity. If it does not meet the requirements, it must be removed and charged.

14. Clean the water tank and oil radiator.

15. Check whether the shelves and frames are deformed, disassemble and wash the rollers, and whether the accessories are fixed reliably. If necessary, add welding.

16. Disassemble and inspect the lifting cylinder, tilt cylinder and steering cylinder, and replace worn seals.

17. Check each instrument sensor, fuse and various switches, and adjust them if necessary.