Toyota 4 Runner/Hilux/Surf

1987-1998 of release

Repair and car operation

Toyota 4Раннер
+ 1. Maintenance instruction
+ 2. Maintenance
+ 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. Blocks of disk brakes
   8.4. Brake support
   8.5. Brake disk
   8.6. Blocks of drum-type brakes
   8.7. Wheel cylinder of back brakes
   8.8. Main cylinder of brakes
   8.9. Hoses and hydraulic actuator tubes
   8.10. Pressure regulator
   8.11. Hand brake
   8.12. Cables of the hand brake
   8.13. Vacuum amplifier of brakes
   8.14. Pumping of brakes
   8.15. Adjustment of a pedal of a brake
   8.16. Switch of a signal of braking
+ 9. Suspension bracket and steering
+ 10. Body
+ 11. Electric equipment
+ 12. Electroschemes

8.10. Pressure regulator


Regulator of pressure of the Toyota 4 Runner/Hilux/Surf car

1. Arm
2. Regulator
The regulator of pressure is intended for change of pressure in a contour of brakes of lobbies and back wheels depending on load of forward and back axes. Load of a forward axis of not loaded lorry exceeds load of a back axis therefore when braking pressure in a contour of forward brakes should be higher than a contour of the back. If in the car there is a cargo, load of a back axis can exceed load of a lobby. Therefore, the regulator of pressure of considered cars provides pressure redistribution in contours of brakes depending on cargo.

Sensitive element of a regulator of pressure is the spring which is stretched depending on cargo weight. The initial tension of a spring is regulated. Into structure of a regulator enters dosing out and perepuskny valves.

Repair control of a regulator are carried out only in car-care center, it is independently possible to perform works on removal and installation (replacement). At a detachment of a rod of a regulator in case of dismantle of the back bridge adjustment of the unit is not required.


After replacement of a regulator it should be checked at the special stand in car-care center.

Removal and installation

1. Lift the car.
2. Unscrew nuts of unions of a regulator, disconnect and muffle tubes.
3. Unscrew a lock-nut and turn out an adjusting bolt on the back lever.
4. Unscrew bolts and remove a regulator with an arm.
5. Installation is carried out upside-down. Adjust distance And, rotating a bolt. Remove air and a hydraulic actuator.