Road roller clutch master cylinder XCMG road rolle spare parts

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Chinese XCMG XS143 Clutch master cylinder，Chinese XCMG XS123 Clutch master cylinder，Chinese XCMG XMR303 Clutch master cylinder，Chinese XCMG XMR403 Clutch master cylinder，Chinese XCMG XP303S Clutch master cylinder，Chinese XCMG XS265H Clutch master cylinder，Chinese SHANTUI XS395 Clutch master cylinder，Chinese SHANTUI XS365 Clutch master cylinder，Chinese SHANTUI XS225JS Clutch master cylinder，Chinese SHANTUI XD143S Clutch master cylinder.

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Clutch master cylinder

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Packing

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description

The clutch master cylinder is also called the clutch master cylinder. It is the main type of clutch hydraulic operating system. After the hydraulic oil (brake oil) enters the master cylinder, it pushes the clutch sub-cylinder under the action of the clutch pedal to push the clutch to work.
The clutch master cylinder is the part connected to the clutch pedal and connected to the clutch booster through the oil pipe. The function is to collect the pedal stroke information to make the clutch separate through the action of the booster.
When the driver steps on the clutch pedal, the push rod pushes the master cylinder piston to increase the oil pressure and enters the wheel cylinder through the hose, forcing the wheel cylinder lever to push the release fork and push the release bearing forward; when the driver releases the clutch pedal, The hydraulic pressure is released, the release fork is gradually returned to its original position under the action of the return spring, and the clutch is in the engaged state again.
There is a radial oblong through hole in the middle of the piston of the clutch master cylinder. The direction-limiting screw passes through the oblong hole of the piston to prevent the piston from rotating. The oil inlet valve is inserted into the axial hole at the left end of the piston, and the oil inlet valve seat is inserted through the straight hole on the surface of the piston. In the piston hole.
When the clutch pedal is not stepped on, there is a gap between the master cylinder push rod and the master cylinder piston. Due to the limit screw restricting the oil inlet valve, there is a small gap between the oil inlet valve and the piston. In this way, the oil storage cylinder communicates with the left cavity of the master pump through a pipe joint, an oil passage, and an oil inlet valve. When the clutch pedal is stepped on, the piston moves to the left, and the oil inlet valve moves to the right relative to the piston under the action of the return spring, eliminating the gap between the oil inlet valve and the piston.
Continue to depress the clutch pedal, the oil pressure in the left cavity of the master cylinder will increase, and the brake fluid in the left cavity of the master cylinder will enter the booster through the oil pipe, the booster works, and the clutch is disengaged.
When the clutch pedal is released, the piston moves to the right quickly under the action of the spring in the same position. Because the brake fluid has a certain resistance in the pipeline, the speed of flowing back to the master cylinder is slow, so a certain amount is formed in the left cavity of the master cylinder. Vacuum degree, the oil inlet valve moves to the left under the action of the pressure difference between the left and right oil chambers of the piston, and a small amount of brake fluid in the oil storage cylinder flows into the left cavity of the master cylinder through the oil inlet valve to make up for the vacuum. When the original brake fluid from the master cylinder into the booster flows back to the master cylinder, excess brake fluid appears in the left cavity of the master cylinder, and this excess brake fluid will flow back to the oil reservoir through the oil inlet valve.