Special tool required:
- round wrench for loosening exhaust device bolts;
- transparent plastic hose.
Necessary wearing parts:
- approximately 0.5 liters of DOT 4 specification brake fluid.
Brake fluid absorbs moisture from the air through the pores of the brake hoses and through the ventilation hole of the reservoir. Because of this, the boiling point of the brake fluid decreases over time. When the brakes are heavily loaded, this can lead to the formation of steam bubbles in the brake drive pipes, which greatly disrupts the functioning of the braking system.
Regardless of the mileage, change the brake fluid, if possible, in the spring, every two years. If you make many trips to mountainous areas, change the brake fluid at shorter intervals.
Observe safety precautions when handling brake fluid.
Mark the brake fluid level in the reservoir with a felt strip. After replacing the brake fluid, restore its original level. This prevents the hydraulic brake fluid reservoir from overflowing when replacing the brake shoe friction linings.
1. Using a suction bottle, pump out brake fluid from the hydraulic brake fluid reservoir to a level of approximately 10 mm.
Caution: Do not empty the reservoir completely to prevent air from entering the brake system.
2. Fill the reservoir with new brake fluid up to the "max" mark.
3. Place a clean hose on the right rear disc brake caliper and place a suitable container underneath it onto the breather valve.
4. Have an assistant press the brake pedal several times until counter pressure is created. Have an assistant press the brake pedal, open the breather valve at the same time and allow the brake fluid to flow out through the transparent hose. Close the breather valve if the pedal is adjacent to the base of the monocoque body, remove your foot from the pedal. Repeat this operation (about 10 times) on each breather valve until new brake fluid begins to emerge. New brake fluid can be identified by its lighter color.
5. Close the breather valve and fill the reservoir with new brake fluid.
6. Also pump out the old brake fluid from the other disc brake calipers.
Attention! In any case, the brake fluid being released must be transparent and free of bubbles.
Attention! Dispose of old brake fluid as hazardous waste.