Ford Granada 1985-1994, Руководство пользователя

Страница: 153 / 254

1 It is necessary to remove the rear wheels in
order to inspect the rear pads. The pads can
be viewed through the top of the caliper after
removing the spring clip. If any one pad is
worn down to the minimum specified, all four
pads (on both rear wheels) must be renewed.
2 Free the handbrake cable from its clip on
the suspension lower arm. Release the
handbrake.
3 Remove the caliper slide bolt nearest the
front, counter-holding the slide pin with
another spanner (see illustration).
4 Disconnect the pad wear warning wires,
when fitted (see illustration).
5 Swing the caliper rearwards and remove the
pads (see illustration). Do not press the brake
pedal with the caliper removed.
6 Clean the dust and dirt from the caliper,
bracket and disc, using a damp cloth or old
paintbrush which can be thrown away
afterwards.
Take care not to disperse the dust
into the air, or to inhale it, since it may contain
asbestos. Scrape any scale or rust from the
disc. Investigate any hydraulic fluid leaks.
7 Retract the caliper piston, by turning it
clockwise, to accommodate the extra
thickness of the new pads. There is a Ford tool
(No 12-006) for this purpose, but a pair of
circlip pliers or any similar tool can be used
instead (see illustration).
8 Remove any backing paper from the new
pads, then fit them to the caliper bracket. Be
careful not to contaminate the friction surfaces
with oil or grease.
9 Swing the caliper over the pads. Refit and
tighten the slide bolt.
10 Reconnect the wear warning wires, if fitted.
11 Repeat the operations on the other rear
caliper.
12 Secure the handbrake cable, refit the wheels
and lower the vehicle. Tighten the wheel nuts.
13 Switch on the ignition and pump the brake
pedal several times to bring the pads up to the
discs. Switch off the ignition and check the
operation of the handbrake.
14 Avoid heavy braking as far as possible for
the first hundred miles or so to allow the new
pads to bed in.
1 With the ignition off, pump the brake pedal
at least 20 times (or until it becomes hard) to
depressurise the hydraulic system.
2 Slacken the front wheel nuts, raise and
support the vehicle and remove the relevant
front wheel.
3 Slacken the flexible hose hydraulic union at
the caliper by no more than a quarter turn.
4 Remove the brake pads (Section 7).
5 The caliper can now be removed by holding
the flexible hose stationary and rotating the
caliper to unscrew it. Be prepared for hydraulic
fluid spillage: plug or cap the caliper and hose.
A brake hose clamp may be used if available
(see illustration). Take great care to keep dirt
out of the hydraulic system.
6 The caliper bracket may be unbolted from
the stub axle carrier if wished.
7 Refit by reversing the removal operations,
but before refitting the wheel, check the
positioning of the flexible hose. It must not be
kinked, nor foul adjacent components, in any
position of the steering wheel. Release the
other end of the hose from its bracket if
necessary and reposition it.
8 Bleed both front brake calipers as described
in Section 2.
1 It is possible to carry out these operations
without disconnecting the caliper hydraulic
hose, but this is not recommended because of
the risk of introducing dirt into the hydraulic
system. Scrupulous cleanliness is essential.
2 Obtain a caliper repair kit, which will contain
a piston seal and a dust boot. (The piston itself
can also be renewed if necessary.)
3 Remove the piston from the caliper. This is
best done with low air pressure (eg from a foot
pump) applied to the hydraulic inlet union.
Place a piece of wood opposite the piston to
prevent damage, and keep your fingers clear
as the piston may be ejected with some force.
4 With the piston removed, pull off the dust
boot (see illustration).
10 Front caliper - overhaul
9 Front caliper - removal and
refitting
8 Rear brake pads - inspection
and renewal
Braking system 10•5
10
8.3 Undoing a rear caliper front slide bolt 8.4 Pad wear warning multi-plug (arrowed)
on rear caliper
8.5 Removing a rear brake pad
8.7 Rotating the caliper piston to retract it 9.5 Removing a front caliper - note clamp
on brake hose
10.4 Removing the dust boot from a front
caliper