4.11BRAKING sysTeMs
Testing Brake servo Diaphragm
remove vacuum supply line from brake servo fitting. Attach VS403.V2
vacuum tester to vacuum supply port on servo (fig.15). operate pump to
create approximately 15 inHg 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.
Brake Bleeding - Assembly of Brake Bleeder Kit
Ensure that the vacuum pump is connected to the brake bleeder reservoir
in accordance with the assembly diagram (fig.16). Failure to do so will
result in brake fluid being drawn into the vacuum pump.
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.
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.
1. remove the cap of the vehicle’s master brake fluid reservoir. If the fluid
level is not at maximum, top it up.
2.
Apply copper grease to the brake bleeding nipples before and after the
brake bleeding procedure to reduce the possibility of seized or broken
nipples when the brakes are next bled.
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.
4. operate vacuum pump until approximately 21 inHg vacuum is created.
5. open the bleed nipple about a quarter of a turn (fig.17). Allow brake fluid
to be drawn until no air bubbles are visible in the brake fluid in the clear
hose.
6.
Tighten the bleed nipple.
7. remove the attachment from the brake nipple.
8. repeat the process as necessary at each wheel.
9.
Check the master brake fluid reservoir regularly to ensure that the level
does not drop too far, and top up as necessary.
10. Empty bleeder container regularly and do not allow container to overfill as
brake fluid will be drawn into vacuum pump.
When brake bleeding and/or fluid changing is complete, test the
action of the brake pedal to ensure that the brakes are working -
before attempting to drive the vehicle on the road and test the
vehicle for satisfactory performance of the braking system.
11. Clean bleeder components 'with water only' after use.
clutch Bleeding Procedure.
refer to the relevant vehicle manufacturer’s instructions for clutch
bleeding procedure. If no specific instructions from the vehicle
manufacturer exist, follow the same basic procedure as the brake
bleeding instructions above.
fig.15
fig.16
fig.17
fig.14
NOTE: It is our policy to continually improve products and as such we reserve the right to alter data, specifications and component parts without prior notice.
IMPORTANT:
no liability is accepted for incorrect use of this product.
WARRANTy:
Guarantee is 12 months from purchase date, proof of which will be required for any claim.
INfORMATION:
For a copy of our latest catalogue and promotions call us on 01284 757525 and leave your full name and address, including postcode.
01284 757500
01284 703534
sole uK Distributor, sealey Group,
Kempson Way, Suffolk Business Park
,
Bury St. Edmunds, Suffolk,
IP32 7Ar
www.sealey.co.uk
Web
Original Language Version
VS403.V2 Issue: 1 - 09/01/12
Parts support is available for this product. To obtain a parts listing and/or diagram, please log on to
www.sealey.co.uk, email [email protected] or phone 01284 757500.
