8. BRAKING SYSTEMS
8.1.
Testing Brake Servo Diaphragm
8.1.1.
Remove vacuum supply line from brake servo fitting. Attach VS402 vacuum tester to vacuum supply port on servo (fig.13). Operate
pump to create approximately 15inHg of vacuum and wait for 30 seconds. No vacuum drop should be observed on the gauge reading. If
the vacuum drops this indicates that the brake servo diaphragm is faulty. In this case the servo should be removed for overhaul by an
authorised repairer or replaced.
8.2.
Brake Bleeding - Assembly of Brake Bleeder Kit
8.2.1.
Ensure that the vacuum pump is connected to the brake bleeder reservoir in accordance with the assembly diagram (fig.14). Failure to
do so will result in brake fluid being drawn into the vacuum pump.
8.3.
Brake Bleeding Procedure.
WARNING!
Familiarise yourself with the hazards of brake fluid - read manufacturer’s instructions on the container.
DO NOT
touch the vehicle’s brake pedal whilst bleeding the brakes.
8.3.1.
Refer to the specific vehicle manufacturer’s instructions for brake bleeding and wheel sequence procedure before proceeding. If no
specific instructions from the vehicle manufacturer exist, follow the instructions detailed below.
8.3.2.
Remove the cap of the vehicle’s master brake fluid reservoir. If the fluid level is not at maximum, top it up.
8.3.3.
Attach the appropriate size bleeding attachment to the bleed nipple on the brake calliper of the first wheel, normally nearest to master
brake fluid reservoir.
fig.9
fig.10
fig.11
fig.12
fig.13
V
S402.V3 | Issue - 1 14/09/16
Original Language Version
© Jack Sealey Limited
fig.7
fig.8
