2006 LAND ROVER FRELANDER 2 Repair Manual

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Page 433 of 3229

LAND ROVER FRELANDER 2 2006 Repair Manual Publi s hed: 11-May-2011
Rear Disc Brake -
General SpecificationItemSpecification
Rear disc:
3.2 Pet rol engineVent il at ed2.2 Dies el engineSol id
Rear disc diameter:
Venti lat ed302 mm (11.9 in)So

Page 434 of 3229

LAND ROVER FRELANDER 2 2006 Repair Manual Publi s hed: 11-May-2011
Rear Disc Brake - Rear Disc Brake
Des cript ion and Operat ion
COMPONENT LOCATION Item
Part Number Description
1 -Anti -l ock Brake Syst em (ABS) s ens or cabl e
2 -Flexibl e

Page 435 of 3229

LAND ROVER FRELANDER 2 2006 Repair Manual 5
-Dus t s hi eld retai ni ng s crew (4 off)
6 -Brake di sc – s olid (TD4 di esel vehi cle)
7 -Brake di sc ret ai ning s crew
8 -Brake di sc – vent il ated (i6 gas oli ne vehi cl e)
9 -Fixed carr

5
-Dus t s hi eld retai ni ng s crew (4 off)
6 -Brake di sc – s olid (TD4 di esel vehi cle)
7 -Brake di sc ret ai ning s crew
8 -Brake di sc – vent il ated (i6 gas oli ne vehi cl e)
9 -Fixed carrier
10 -Bus hed bol t rubber boot (2 off)
11 -Bus hed bol t
12 -Cali per pi st on s eal
13 -Brake pad retai ni ng s pri ng (2 off)
14 -Out er ant i-squeal shi m
15 -Cali per pi st on
16 -Out er brake pad
17 -Inner brake pad
18 -Sli ding cali per
19 -Inner anti -s queal s him
20 -Cali per bl eed screw
21 -Bleed s crew cap
22 -Bus hed bol t ret aining s crew (2 off)
23 -Rear Left-Hand (LH) wheel knuckle
24 -Fixed carrier ret aining bol t (2 off)
25 -Anti -l ock Brake Syst em (ABS) s ens or ret aining s crew
OVERVIEW
The rear brake as s embly feat ures ei ther a convent ional venti lat ed or a s olid type br ake di s c, and cast -iron sl idi ng cal iper
wit h s i ngl e act ing pi s ton.
BRAKE DISC Item
Part Number Description
A -Rear brake dis c - i 6 gas ol ine vehicle
B -Rear brake dis c - TD4 di esel vehicle
The vent il ated t ype brake dis c i s 302 x 20 mm (11.89 x 0.79 in) i n diamet er and ins t al led t o t he 3.2 l it er i6 gas oli ne
vehi cl e. The sol id t ype brake dis c i s 302 x 12 mm (11.89 x 0.47 i n) i n diamet er and ins tal led t o t he 2.2 lit er TD4 dies el
vehi cl e. The brake dis c i s s ecured to t he wheel knuckle hub wi th a s ingle screw and is al s o ret ained by t he 5 wheel
s ecuring nuts .
Both si zes of rear brake dis c are suffi ci ent ly cooled to achieve high level s of t her mal st abil it y, even duri ng s evere braking.
The s olid type brake di sc is cooled as t he vehi cles forward moti on direct s air over the di sc surfaces . The convent ional
vent il ated di sc is cooled by t he forward moti on of the vehicle drawing ai r through r adial s lots formed on t he dis c outer rim.
The air cools t he dis c from the i nsi de edge to the di s c cent er, before vent ing out t hrough s lots formed around t he dis c
cent ral bell .

Page 436 of 3229

LAND ROVER FRELANDER 2 2006 Repair Manual The brake dis c al so forms t he locati on for t he parking brake component s . The brake d is c i nt ernal diamet er is 185 mm (7.28
in) and i s machined wit h a smoot h s urface to form t he brake

The brake dis c al so forms t he locati on for t he parking brake component s . The brake d is c i nt ernal diamet er is 185 mm (7.28
in) and i s machined wit h a smoot h s urface to form t he brake drum. An int egral backpl
ate and brake dust s hiel d is mount ed
t o the rear of the brake di s c. The backpl at e enclos es the brake dis c and als o provi d es the mount ing l ocat ion for t he 2
parking brake shoes and operat ing component s.
An apert ure i s formed i n t he dust s hiel d and backplat e t hat al lows t he parking brake cable to protrude t hrough to the i nner
s ide of t he brake dis c, and connect to t he parki ng brake expander uni t. A hol e machi ned i n t he brake dis c outer hub
provides acces s t o t he parking brake manual adjus ter.
For addit ional informat ion, refer t o: Parking Brake (206-05 Parki ng Brake and Act uat ion, Descripti on and Operat ion).
CALIPER ASSEMBLY Item
Part Number Description
A -Rear brake caliper - i 6 gasol ine vehicle
B -Rear brake caliper - TD4 di es el vehi cl e
The cal iper as sembl y compris es a fixed carrier and s li ding caliper. The fi xed carrie r i s mounted t o s t raddle t he brake di sc
and is at t ached t o t he wheel knuckl e wit h 2 bol ts . The fixed carri er provides the lo cat ion for 2 brake pads t hat are
mounted on ei ther s ide of t he brake di sc, and is formed wit h guide channel s t hat al l ow t he brake pads t o s li de toward t he
dis c s urface.
• NOTE: The 2 fixed carrier ret aining bol ts are pre-appl ied wi th a t hread locking ad hesi ve and mus t not be re-us ed during
maint enance. New fixed carri er ret ai ning bolt s mus t be us ed and t he ori gi nal bolt s d i scarded.
The s li di ng cal iper is mount ed over the fixed carrier and ret ains t he 2 brake pads w i thi n the cal iper as s embly. The s li di ng
cal iper is secured t o t he fixed carri er wit h 2 bus hed bol ts , and i s formed wi th a hy draul ic chamber cont ai ning a pi s ton and
annul ar seal.
The s li di ng cal iper is connect ed via a fl exi ble hos e t o t he brake s yst em hydrauli c c ircui t, and als o i ncorporates a bleed
s crew for maint enance purposes .
The 2 bus hed bol ts are machined wi th a s mooth surface and are protect ed from di rt an d moi st ure ingres s wi th a col laps ible
rubber boot . The bushed bolt s all ow t he s li di ng caliper li mi ted l ateral movement alo ng t he fi xed carri er.
An anti -s queal s him i s ins tal led on t he outs i de edge of each brake pad and reduces N ois e, Vibrat ion and Hars hnes s (NVH)
from the brake component s duri ng operati on.
An upper and lower brake pad ret aining spring are mounted bet ween the fixed carrier and s li di ng caliper. The retai ning
s prings are held i n pos it ion by t he 2 bus hed bol ts , and mai ntain pres sure on t he bra ke pads t o prevent radial movement of
t he pads away from t he brake dis c.
The brake pads are not i nst all ed wit h pad wear s ens ors .
BRAKE DUST SHIELD
A formed brake dust s hiel d and int egral parking brake backpl ate is l ocat ed bet ween t he wheel knuckl e and brake dis c, and
is secured t o t he knuckle wit h 4 s crews .

Page 437 of 3229

LAND ROVER FRELANDER 2 2006 Repair Manual The brake dus t shi eld i s handed t o t he rel evant s ide of t he vehicle and protects t he brake component s from cros s axl e
s tone t hrows . The brake dus t shi el d als o prevent s debris

The brake dus t shi eld i s handed t o t he rel evant s ide of t he vehicle and protects t he brake component s from cros s axl e
s tone t hrows . The brake dus t shi el d als o prevent s debris and brake dust from s preadi
ng t o other part s of t he vehi cl e.
PRINCIPLES OF OPERATION
Brake Application
As t he brake pedal i s applied, ini ti al hydrauli c pres s ure i s fel t in the s l iding cal i per chamber caus ing t he pis t on to ext end
t oward t he brake dis c. The moving pis t on cont act s t he inner brake pad, forci ng the p ad al ong the fixed carrier guide
channels and i nto cont act wi th the i nner s ide of t he brake di sc.
As t he pis ton ext ends from t he cal iper chamber, it pas ses t hrough an i nternal annul a r seal located wit hi n t he cal iper
chamber. The movement of t he pis t on dis torts t he s hape of the s eal and cons equent ly, the s eal appl ies pres s ure on the
pis t on out er s urface.
The s li di ng cal iper now react s and commences t o s li de along t he 2 bus hed bol ts , i n t he oppos it e direct ion t o t he extending
pis t on. The s li ding cali per contacts t he outer brake pad, forcing t he pad along t he fi xed carri er gui de channels and i nt o
cont act wit h the out er si de of the brake dis c.
W i th bot h brake pads now in full cont act wit h the brake dis c and hydraulic pres sure act ing on the pi s ton, no further
movement of t he pis t on and s li di ng cal iper is pos s ible. The force creat ed by the pi s ton and cali per acti ng agai nst the brake
pads increas es rapidly, t rapping t he brake di sc and sl owing t he vehi cl e.
Brake Release
As t he brake pedal i s rel eas ed, hydraul ic press ure in the cali per chamber coll apses and force i s no longer appl ied t o t he
brake pads. The brake pads are moved s li ght ly out wards by t he acti on of the rotat ing brake di s c, and t he caliper int ernal
annul ar seal ret urns t o t he normal s hape. As t he s eal moves i t gri ps on the pi s ton o ut er s urface and wit hdraws t he pis t on
int o t he chamber, suffi ci ent ly to provi de t he neces sary pad t o dis c clearance.
This acti on prevents t he pis t on from hol di ng t he inner brake pad agai nst t he dis c, a nd als o enables t he pis ton to protrude
further from the cali per chamber to compens at e for brake pad wear.

Page 438 of 3229

LAND ROVER FRELANDER 2 2006 Repair Manual Publi s hed: 11-May-2011
Rear Disc Brake - Rear Disc Brake
Diagnosi s and Tes ti ng
For addit ional informat ion.
REFER to: Brake Sys tem (206-00 Brake Sys tem - General Informati on, Diagnos is a

Page 439 of 3229

LAND ROVER FRELANDER 2 2006 Repair Manual Publi s hed: 11-May-2011
Rear Disc Brake - Brake Pads
Removal and Inst all ati on
Removal
1. W ARNING: Do not work on or under a vehi cle s upported onl yby a jack. Al ways support t he vehi cl e o

Page 440 of 3229

LAND ROVER FRELANDER 2 2006 Repair Manual Remove t he brake pad cli ps .
5.
Installation 1. W ARNING: Do not use compress ed air t o clean brake
component s. Dus t from fricti on mat erial s can be harmful i f inhaled.
Clean t he brake cali

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