Toyota 4 Runner/Hilux/Surf

1987-1998 of release

Repair and car operation



Тойота 4Раннер
+ 1. The maintenance instruction
+ 2. Maintenance service
+ 3. Engines
+ 4. Systems of heating, ventilation
+ 5. Fuel and exhaust systems
+ 6. Transmissions
+ 7. Transmission elements
- 8. Brake system
   8.1. Specifications
   8.2. ABS-system
   8.3. Колодки disk brakes
   8.4. A brake support
   8.5. A brake disk
   8.6. Колодки drum-type brakes
   8.7. The wheel cylinder of back brakes
   8.8. The main cylinder of brakes
   8.9. Hoses and hydrodrive tubes
   8.10. A pressure regulator
   8.11. A manual brake
   8.12. Cables of a manual brake
   8.13. The vacuum amplifier of brakes
   8.14. Prorolling of brakes
   8.15. Adjustment of a pedal of a brake
   8.16. The switch of a signal of braking
+ 9. A suspension bracket and a steering
+ 10. A body
+ 11. An electric equipment
+ 12. Electroschemes





8.14. Prorolling of brakes
THE GENERAL DATA

Necessity of prorolling arises after a detachment of tubes of the main cylinder or at strong fall of level in a tank.

At dismantling of a hydrodrive of one wheel it is possible to be limited to prorolling only an understanding contour.

Press some times a pedal of a brake and remove residual depression in the amplifier.

Before prorolling restore liquid level in a tank and during prorolling support level, without supposing опопустошения a tank. Fill in only a fresh liquid.
PERFORMANCE ORDER
1. Prorolling begin with a back right wheel. Attach to the union a hose, other end of a hose lower in a vessel with a brake liquid.
2. Ask the assistant to press slowly a pedal of a brake and to keep.
3. Turn away the union and later 2 сек after a stream of a liquid following with bubbles ослабнет, tighten the union. Ask the assistant to release a pedal.
4. Repeat procedure until then while in a following liquid vials will not cease to be observed. Tighten the union.
5. Execute these actions in sequence: the left back wheel, right forward, left forward, a pressure regulator. Upon termination of restore liquid level in a tank.
6. Check up rigidity of a pedal and work of brakes.

The prevention

If a pedal "soft" repeat prorolling. If to remove air it is not possible, air hit in ABS-system valves can be the reason. Therefore, if a pedal "soft" after repeated prorolling lamps BRAKE or ANTI-LOCK tow off the car in car-care centre for check by the scanner also burn.


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