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Skoda Workshop Service and Repair Manuals

Removing and installing brake-power regulator > < Summary of components of brake-power regulator
Inspecting, setting brake-power regulator and adjusting values
Inspecting, setting brake-power regulator and adjusting values
Special tools and workshop equipment required
t  Brake-power regulator or brake system tester, e.g. -V.A.G 1310- or -V.A.G 1310 A-
t  Brake filling and bleeding device, e. g. -VAS 5234-
Fitting location of the brake-power regulator
The brake-power regulator is secured to a bracket assigned to the mount for rear axle and is controlled by the rear axle movement via a spring.
Check for proper operation
–  Forcefully apply the brake pedal and release quickly (vehicle is standing on its wheels). While doing so the lever of the brake-power regulator must move.
Pressure test and adjustment
  Note
t  The brake-power regulator is adjusted on a vehicle ready for driving.
t  Vehicle ready for driving for inspecting and setting the brake-power regulator: Weight of the vehicle with full fuel tank and full water reservoir for windscreen wiper/washer and headlamp cleaning system, spare wheel, tool kit, jack (if the vehicle was fitted at the factory with them) and driver (75 kg). The spare wheel, tool kit and jack must be located in the position prescribed by the vehicle manufacturer, the driver must be seated on the driver seat.
   
–  Raise vehicle and connect pressure gauge of the tester to the brake caliper (front left wheel) and connect to the wheel-brake cylinder (rear right wheel).
–  Bleed both pressure gauges.
–  Lower vehicle and repeatedly depress vehicle and allow to settle on the rear axle.
–  Press brake pedal and measure pressures.
–  Compare measured pressure values to the specified adjusting values → Anchor.
–  If necessary adjust brake-power regulator → Anchor
Adjusting brake-power regulator
Test pressure on rear axle too high:
–  Release tension spring on brake-power regulator.
Test pressure on rear axle too low:
–  Tighten tension spring on brake-power regulator.
  Note
Adjust without load on the brake pedal. Observe the following sequence:
–  Read off values.
–  Relieve brake pedal.
–  Adjust tension spring on brake-power regulator.
–  Again load brake pedal.
–  Read-off values and if necessary correct adjustment.
–  Remove pressure gauge.
–  Bleeding Brake System → Chapter
Adjusting values for the load-dependent brake-power regulator
  S47-0107
  Note
t  Adjusting values for the load-dependent brake-power regulator are valid for a vehicle with driver (75kg) ready for driving.
t  Vehicle ready for driving for setting the brake-power regulator: Weight of the vehicle with full fuel tank and full water reservoir for windscreen wiper/washer and headlamp cleaning system, spare wheel, tool kit, jack (if the vehicle was fitted at the factory with them) and driver (75 kg). The spare wheel, tool kit and jack must be located in the position prescribed by the vehicle manufacturer, the driver must be seated on the driver seat.
Model/Version barMPa barMPa
Vehicles with electro-hydraulic steering - drum brakes on rear axleFront axle707,0Front axle10010,0
Rear axle44,4 ± 34,44 ± 0,3Rear axle57,3 ± 35,73 ± 0,3

   

Removing and installing brake-power regulator > < Summary of components of brake-power regulator