How does a air over hydraulic clutch work?
As we learned earlier, this system works by combining elements of an air brake and a hydraulic brake. This means that there is more hydraulic pressure compared to air pressure during normal breaking. So when the pedal is pressed, the valve opens and releases the pressure, which a causes braking to occur.
What kind of fluid goes in a hydraulic clutch?
brake fluid
Most hydraulically operated clutches use brake fluid for the hydraulic fluid. Brake fluid is hygroscopic and will attract moisture out of the air. Over time this moisture in the brake fluid will lead to corrosion inside the hydraulic system causing both the master cylinder AND clutch slave cylinder to wear.
What causes air in clutch?
A more-common cause of intermittent clutch action is air invading the hydraulic clutch release mechanism through a worn seal in the clutch master or slave cylinder. A professional bleeding may help, but if the symptoms return, replacement of the clutch master and slave cylinders may be necessary.
How to get air out of a hydraulic clutch system?
Take the slave and put the line end down in a jar of fluid and push the rod in and out a couple of times to get the air out of the slave, reinstall the line to the slave and reinstall the slave.
How did you Bleed the hydraulic clutch system?
It’s a closed system — if there’s air in it, it leaks. There are three components where it can leak — the master cylinder, the slave cylinder, and the hose/line that connects the first two. How did you bleed the clutch system? It’s a closed system — if there’s air in it, it leaks.
Why does the clutch fluid feel like air?
It compresses at a different rate than clutch fluid, giving you that erratic feeling in the pedal. The air will need to be bled out of the clutch system and the fluid topped up to correct the condition. Is it hard to push the gearshift lever into the next gear while you’re shifting?
How do you get a pin out of a hydraulic clutch?
You’ll likely never get the pin out with the master still on the truck, so you’ll have to take the master off. Fill the reservoir with fluid and pump it by hand until the fluid spills out of the hole for the line out, pump a couple of short pumps to get the air out of the pump, put the cap back on, reinstall.