ESP FORD SIERRA 1990 2.G Braking System Workshop Manual

1The shoe friction material can be inspected
for wear without removing the roadwheels.
Working beneath the vehicle, prise the plug
from the brake backplate, and using an
inspection lamp or torch, check that the
friction material thickness is not less than the
minimum given in the Specifications.
2If any one of the shoes has worn below the
specified limit, the shoes must be renewed as
an axle set (4 shoes).
3To renew the shoes, slacken the rear
roadwheel nuts, chock the front wheels, thenjack up the rear of the vehicle and support on
axle stands (see “Jacking and Vehicle
Support”).Remove the rear roadwheels, and
release the handbrake. On P100 models,
mark the position of the roadwheels in relation
to the brake drums before removal.
4Proceed as follows according to model:1.3 and 1.6 litre models
5Remove the brake drum retaining spire
washer(s) from the wheel stud(s) and remove
the brake drum. If the drum will not pass over
the shoes, it is possible to release the
automatic adjuster mechanism by inserting a
screwdriver through the small hole in the drum
and pressing down on the ratchet (see
illustrations).
6Using a wire hook or a pair of long-nosed
pliers, remove the top and bottom shoe return
springs. Note the fitted positions of thesprings for reference when refitting (see
illustrations).
7Remove the hold-down cup, spring and pin
from each shoe by depressing the cup and
turning it through 90º (see illustration).
8Pull the bottom of the leading (front) shoe
towards the front of the vehicle so that the
self-adjuster ratchets separate, then
disengage the shoe from the strut by twisting
it. Remove the shoe and adjuster mechanism.
9Pull the trailing (rear) shoe away from the
backplate far enough to gain access to the
handbrake cable. Disconnect the handbrake
cable from the lever and remove the shoe with
strut and lever (see illustration).
10Clean and inspect all components, and
lubricate the shoe contact points on the
backplate (see illustration). Take care not to
inhale any dust, as it may be injurious to
health.
5Rear drum brake shoes
- inspection and renewal
10•6Braking system
5.5a Brake drum retaining spire washer
(arrowed)5.5c Drum removed showing screwdriver
pressing on adjuster ratchet
5.6b Bottom shoe return spring
5.6a Top shoe return spring (arrowed)
5.5d Rear drum brake self-adjuster assembly - 1.3 and 1.6 litre models
A Shoe hold-down points
B Trailing brake shoe
C Self-adjuster strut and top return
springs
D Wheel cylinder
E Spring clipsF Self-adjuster strut
G Leading brake shoe
H Large ratchet segment
J Small ratchet segment
K Brake backplate
5.5b Releasing the automatic adjuster
using a screwdriver
Caution: Refer to the
precautions in Section 1