You will need:
- clean rags
- brake fluid ("Tom" or "Dew")
- rubber or transparent hose
- transparent vessel
- key on "8"
Replacement frequency: Every 45,000 km or after 3 years of operation.
Attention! Brake fluid is hygroscopic (absorbs moisture from the surrounding air), so it can not be stored in an open container.
Attention! Take precautions when handling brake fluid: it is toxic. It is unacceptable to get brake fluid on wires, plastic or painted body parts, so always place clean rags when pouring. If liquid comes into contact with these parts, wipe them off immediately.
Attention! If the rear wheels are suspended, first unlock the rear brake pressure regulator by inserting a bolt or screwdriver of a suitable diameter between the plate and the ball. Don't forget to remove the bolt (screwdriver) after work.
1. Unscrew the tank cap and place on a clean rag. Be careful: brake fluid may drip from the float.
2. Remove the rubber protective cap from the air release valve on the right rear brake mechanism and put a hose on the valve, lowering its end into a transparent vessel.
3. Loosen the valve one turn; the assistant should press the brake pedal to the stop and hold it. Make sure that the minimum amount of fluid remains in the reservoir and top up with new if necessary. When fluid stops flowing from the hose, close the valve.
4. Have an assistant release the pedal and press it all the way down again while holding the pedal. Loosen the valve again one turn. Repeat these operations until clean brake fluid flows out of the hose. Close the valve and put on the protective cap.
5. Drain the brake fluid from the left front, left rear and right front brakes in the same way.
6. Check the absence of air in the brake system by depressing the brake pedal several times. In this case, the stroke and effort on the pedals must be constant with each press. If not, bleed the brake system (see subsection 3.22.).
7. Add brake fluid to the reservoir up to the mark "MAX" and screw on the lid.