Operation Of Hydraulic Service Brake - Opel 1900 1973 Service Manual

1973 OPEL SERVICE MANUAL
Figure 5C-43 Parking Brake Equalizer (Opel 1900 and
Figure 5C-44 Parking Brake Equalizer (GT)
The brake pedal on the GT is suspended from a pivot
shaft. The pivot shaft inserts through the support
bracket which is mounted on the cowl. The pedal is
stopped in "off position by the thrust rod coming in
contact with the support plate on the cowl. The
thrust rod (master cylinder push rod) connects di-
rectly into the brake pedal providing no pedal height
adjustment. See Figure 5C-45.

OPERATION OF HYDRAULIC SERVICE BRAKE

A dual master cylinder, equipped with one (1)
static pressure valve - for rear brake circuit - and
used along with a power booster, is used on all
models.
Each rear wheel cylinder contains two pistons and
two rubber cups which are held in contact with the
pistons by a central coil spring. The wheel cylinder
BRAKE LIC
Figure 5C-45 Brake and Clutch Pedal Arrangement -
GT
Figure 5C-46 Brake Light Switch - Opel 1900 and
M a n t a