Attention! Brake fluid is harmful to the eyes as well as to vehicle paint, so be careful when handling it. Do not use liquid that has been stored in an open container for a long time, as liquid is hygroscopic and absorbs moisture from the air. Excess moisture in the brake fluid can significantly reduce brake performance.
1. The procedure for changing the brake fluid is similar to bleeding the brakes, which is described in chapter 9. The only difference is that the liquid in the reserve tank should not be topped up, but, on the contrary, removed with a syringe, syringe or other device. Then you need to pump all the brakes in turn, allowing the fluid to completely drain from the system.
2. Acting as indicated in chapter 9, unscrew the bleed nipple from the first brake cylinder and pump the brake pedal until there is almost no fluid left in the reserve tank.
3. Add fresh fluid to the reserve tank up to the MAX mark. Continue pumping the pedal until only fresh fluid remains in the reservoir, and fresh fluid also flows from the nipple. Wrap the nipple and again add fluid to the tank to the MAX mark.
4. In the same way, pump the system through the remaining nipples until all the old fluid has poured out. Remember to keep an eye on the fluid level in the reservoir tank and add fluid as needed.
Old brake fluid is usually much darker than fresh fluid, so it's easy to tell the difference.
5. After completing the operation, check that all air outlet nipples are well tightened. Put protective caps on them. Wash off all traces of spilled fluid and recheck the fluid level in the reservoir tank.
6. Before leaving on a public road, check the operation of the brakes.