Tractor modification conveyor maintenance considerations
1. Assembly shaft should pay attention to matters
In order to ensure that the drive shaft can be assembled in its original position after being disassembled, it must be marked before disassembly. When assembling, care should be taken to ensure that the universal joints at both ends of the drive shaft are in the same plane, and that the spline grooves and expansion joints of the drive shaft do not change.
2. How to remove the single-acting cylinder piston
Single-acting cylinder piston removal can use the following two methods:
1 Use compressed air to press the piston out of the liner. Compressed air should be compressed from the inlet port of the cylinder (usually a bicycle pump), and the other infusion ports should be blocked to prevent gas leakage.
2 When the piston seal is severely damaged and it is difficult to remove it with compressed air, the cylinder head can be turned down and the piston can be pulled out on the wood.
3. How to determine the failure of hydraulic brake
When the brake pedal is pressed continuously, if the pedal can gradually rise and feels elastic when you continue to step on the next step, there is air in the brake system.
1 If the brake pedal is continuously pressed on and the pedal is raised, but continues to step down, there is a feeling of pedal rise. This indicates that there is oil leakage in the pipeline, joint, or the main pump and the cylinder pump, and the cause should be determined.
2If the pedal height is appropriate, there is no sense of elasticity and sinking when stepping down, but the braking effect is poor, and the brake hub and the brake friction plate are defective. If the friction plate is stained with oil and the rivet is exposed, the system will make The weakening of power and the blockage of the main pump vent and the compensation hole can also cause brake failure.
3 If the brake pedal does not work, but even a few steps, the pedal rises, there is no elastic feeling, indicating that the pedal free stroke and brake gap is too large and must be adjusted.
4. Causes of Hysteresis Failure in Hydraulic Brake
Braking delay means that all or part of the wheel still produces braking action when the brake pedal is lifted after braking. Because:
1 The brake pedal does not have a free stroke, or the pedal return spring falls off, is too soft, or breaks.
2 The hydraulic pump cylinder blocks the balance hole and cannot return oil or return, or the hydraulic pump bowl swells, embolism is not working, and it cannot return after braking.
(3) The gap between the friction plate and the brake hub is too small to cause rubbing, or the return spring of the shoe breaks and fails.
4 The brake shoe bearing pin is contaminated and the brake shoe cannot rotate freely. After traveling for a distance, if all the wheels are found to be hot, it means that the fault is in the main pump. If any individual wheel is hot, the fault is on the wheel and should be promptly eliminated.
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