2006 LAND ROVER FRELANDER 2 Repair Manual

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Page 449 of 3229

LAND ROVER FRELANDER 2 2006 Repair Manual Publi s hed: 11-May-2011
Parking Brake and Actuation -
General SpecificationItemSpecification
MakeTRW
TypeDrum machi ned in centre of t he brake dis cOperat ionManual ly appli ed cable operated s ys t

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LAND ROVER FRELANDER 2 2006 Repair Manual Publi s hed: 11-May-2011
Parking Brake and Actuation - Parking Brake
Des cript ion and Operat ion
COMPONENT LOCATION
ItemPart NumberDescription1-Parki ng brake expander unit
2-Brake shoe retai ni ng c

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LAND ROVER FRELANDER 2 2006 Repair Manual 5-Brake shoe retai ni ng s pri ng
6-Brake shoe return s pri ng
7-Brake shoe mechanical adjust er8-Lower (l eadi ng) brake s hoe
9-Parki ng brake l ever cabl e
10-Parki ng brake cabl e equalizer11-Park

5-Brake shoe retai ni ng s pri ng
6-Brake shoe return s pri ng
7-Brake shoe mechanical adjust er8-Lower (l eadi ng) brake s hoe
9-Parki ng brake l ever cabl e
10-Parki ng brake cabl e equalizer11-Parki ng brake i nner cabl e
12-Equali zer fas t ener
13-Parki ng brake mi cros wit ch14-Parki ng brake l ever as sembl y
15-Parki ng brake outer cable
16-Brake dus t s hield
OVERVIEW
The parking brake is a manual ly actuat ed s ys t em t hat operat es brake s hoes located i n t he rear brake di scs . The ins idecent er of the rear brake dis c is manufact ured t o form the brake drum.
BRAKE SHOE ASSEMBLY
The brake s hoes are mount ed horizontal ly on an int egral brake dus t s hield and backplat e, and form an upper t rai li ng andlower l eading brake s hoe type s yst em. Retai ni ng pins pas s t hrough hol es in the dus t s hield and corres ponding hol es ineach brake s hoe bracket . Each pi n is secured t o t he brake s hoe wit h a ret ai ning cli p. The ret ai ning pins al low movement oft he brake s hoe toward the drum surface duri ng parking brake operat ion, but prevent si deways movement of the brake shoeaway from the dus t s hi eld.
An expander unit and manual adjust er are l ocat ed along t he hori zont al axis of t he dus t shi el d. The expander uni t isposi ti oned at the front of the dus t s hield and forms t he locati on for t he leading and t rai ling ends of t he brake s hoebracket s . The manual adjus t er i s mounted at t he rear of t he dust s hiel d and forms t he l ocati on and ful crum poi nt for theoppos it e ends of t he brake s hoe bracket s.
The manual adjus t er provides the means to adjust t he brake s hoe l ining t o drum clearance for maintenance purposes .Acces s t o t he manual adjus t er knurl ed wheel i s t hrough a formed hole in the front of the brake dis c. Adjust ment isrequired if t he brake s hoes or dis cs are renewed. A bedding-in procedure must al so be performed t o make s ure the drumbrakes operate sat is fact oril y.For addit ional informat ion, refer t o: Parking Brake Shoes Bedding-In (206-05 Parking Brake and Actuati on, GeneralProcedures).
The corres pondi ng ends of bot h t he upper and l ower brake shoe brackets are mai ntained i n contact wit h t he expander uni tand manual adjus t er by 2 ret urn springs . The return s pri ngs are l ocat ed bet ween t he ends of each upper and l ower brakes hoe and att ach to hol es formed in the brake shoe brackets . The ret urn springs pull t he brake s hoes away from t he drumwhen t he parking brake is released.
PARKING BRAKE LEVER
The parking brake lever is l ocat ed in t he floor cons ole bet ween the driver and pass enger s eats , and compri ses a toot hedquadrant , pawl and pres s-butt on rel eas e mechanis m. A si ngl e cabl e wi th a formed t hreaded rod-end connect s t he quadrantt o the equali zer unit , and is secured wit h eit her a locknut or a l ocking was her and nut.
The t hreaded rod all ows adjus tment s t o t he parking brake cable tens ion and parki ng brake lever travel t o be performed formaint enance purpos es.For addit ional informat ion, refer t o: Parking Brake Cabl e Adjus tment (206-05 Parki ng Brake and Actuat ion, GeneralProcedures).
The parking brake cable is routed from t he parking brake l ever equalizer, and al ong the chas si s t o t he rear parking brakeexpander uni t. The parki ng brake cabl e prot rudes t hrough t he brake dust s hiel d, and is formed wit h a nippl e that connectst o the expander unit . The oppos i te ends of each Left-Hand (LH) and Ri ght -Hand (RH) parking brake cabl e are formed wit h anipple that connect to the equali zer unit . The equal izer uni t makes sure t he LH and RH parki ng brake as s embl ies operat es imul taneous l y when the parking brake i s applied.
A micros wit ch is locat ed on t he base of the parki ng brake lever. The micros wit ch operates t he parking brake warni ngindicat or l amp l ocat ed in t he i ns t rument clus ter, when the parki ng brake i s appl ied.For addit ional informat ion, refer t o: Ins t rument Clus ter (413-01 Inst rument Cl us t er, Des cript ion and Operat ion).
PRINCIPLES OF OPERATION
As t he parking brake lever i s applied, t he toot hed quadrant rotat es and pul ls on the t hreaded rod and cable equali zer. Theequal izer pul ls t he 2 parki ng brake cables and operat es the 2 expander uni ts s i mult aneous ly. Movement of t he expanderunit caus es t he upper and l ower brake s hoes t o pivot agains t the manual adjus ter fulcrum, and t he brake s hoes cont actt he brake drum agai nst t he t ens i on of the 2 ret urn s pri ngs .
As t he parking brake lever quadrant rot ates , t he teet h on t he pawl engage wit h corresponding t eeth on the quadrant . Int he appl ied pos it ion, the pawl t eet h are held under spring t ensi on agai nst the quadrant teet h t o prevent the l ever fromdis engagi ng.
W i th the parki ng brake appli ed and the i gnit ion i n power mode 6 (ignit ion), t he mi cros wit ch connect s a ground to theins t rument clus ter and il lumi nat es t he parking brake warning i ndi cat or lamp.For addit ional informat ion, refer t o: Ins t rument Clus ter (413-01 Inst rument Cl us t er, Des cript ion and Operat ion).
W hen t he parking brake lever pres s-butt on is pres sed and t he l ever moved t o rel eas e t he parki ng brake, t he pawl teet hare rais ed clear from the quadrant t eet h. As the parki ng brake l ever i s lowered, t he parking brake cable cl oses t heexpander uni t and the brake s hoes are immediatel y moved away from the brake drum by the 2 ret urn s pri ngs .

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LAND ROVER FRELANDER 2 2006 Repair Manual As t he parking brake lever reaches t he ful ly releas ed pos i ti on, t he mi croswi tch i s opened to di s connect t he circui t to theins t rument clus ter. W it h t he parking brake releas ed,

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LAND ROVER FRELANDER 2 2006 Repair Manual 1
1
1
1
Publi s hed: 11-May-2011
Parking Brake and Actuation - Parking Brake
Diagnosi s and Tes ti ng
Principle of Operation
For a detail ed descripti on of the parki ng brake, refer t o t he rel eva

1
1
1
1
Publi s hed: 11-May-2011
Parking Brake and Actuation - Parking Brake
Diagnosi s and Tes ti ng
Principle of Operation
For a detail ed descripti on of the parki ng brake, refer t o t he rel evant Des cript ion and Operat ion secti on in the workshopmanual.REFER to: Parki ng Brake (206-05 Parking Brake and Act uati on, Des cript ion and Operat ion).
Inspection and Verification
1. Verify t he cus t omer concern by operat ing t he s yst em to dupli cat e t he condi ti on.1.
2. Vis ually ins pect for obvious s igns of damage and s ys t em i ntegri ty.2.
Visual Inspection
MechanicalElectrical
Parking brake cont rolCable and condui tEqual izer
Parking brake control warning ci rcuit
3. If an obvious cause for an obs erved or report ed concern is found, correct t he caus e (if pos s ible) beforeproceeding t o t he next s t ep.3.
4. If t he concern is not vis uall y evi dent , verify t he s ymptom and refer t o t he Symptom Chart .4.
Symptom Chart
SymptomPossible CauseAction
The parking brake wil l not engageParki ng brake controlCabl e and conduitGo to Pi npoi nt Tes t A
The parking brake wil l not releas eCabl e and conduitParki ng brake controlGo to Pi npoi nt Tes t B
Pinpoint Tests
PINPOINT TEST A : THE PARKING BRAKE WILL NOT ENGAG E
T ESTCONDIT IO NSDET AILS/RESULT S/ACT IO NS
A1: CHECK FOR INCORRECT LY ADJUST ED REAR PARKING BRAKE CABLE
Carry out parki ng brake cabl e adjus tment procedure.REFER t o: Parking Brake Cabl e Adjus tment (206-05 Parki ng Brake and Actuati on, GeneralProcedures ).
Does t he parking brake now engage correctl y?YesVehi cl e OK.NoGO t o A2.A2: CHECK FOR WO RN PARKING BR AKE SHOES
Ins pect t he rear parking brake s hoes for excess i ve wear.
Are parking brake s hoes OK?YesGO t o A3.NoINSTALL new parking brake shoes .REFER t o: Parking Brake Shoes (206-05 Parking Brake and Act uati on, Removal and Ins tal lat ion).Tes t t he s ys t em for normal operati on.A3: CHECK FOR DAMAGED PARKING BRAKE CABLES
Ins pect t he parking brake components , cabl es and conduit for damage, rus t or fraying.
Are t he parking brake components , cabl es and conduit s OK?YesCHECK for other caus es s uch as loos e parking brake cont rol or s ys t em component s.NoREPAIR or INSTALL new component s , cables and condui t as neces s ary.REFER t o: Parking Brake Front Cabl e (206-05 Parking Brake and Act uat ion, Removal andIns tal lati on) /Parki ng Brake Rear Cables (206-05 Parking Brake and Act uati on, Removal and Ins tal lati on).TEST t he s yst em for normal operati on.
PINPOINT TEST B : THE PARKING BRAKE WILL NOT RELEASE
T ESTCONDIT IONSDET AILS/R ESULT S/ACT IONS
B1: CHECK PARKING BRAKE CONT RO L
• NOTE: Ens ure correct adjus t ment of parki ng brake s hoes pri or t o t est .
Rai se and support t he vehicle wi th the parki ng brake fully appl ied.REFER t o: Li ft ing (100-02 Jacki ng and Lift ing, Des cript ion and Operat ion).

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LAND ROVER FRELANDER 2 2006 Repair Manual 2
1
1
Rel eas e t he parking brake by pulli ng upwards on t he cont rol l ever and pus hi ng t he releas e butt on.
Di d t he parking brake control releas e?YesCHECK for other caus es s uch as conv

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LAND ROVER FRELANDER 2 2006 Repair Manual Publi s hed: 11-May-2011
Parking Brake and Actuation - Parking Brake Cable Adjustment
General Procedures
Apply t he parking brake lever one cl ick at a t ime and count t henumber of cl icks require

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LAND ROVER FRELANDER 2 2006 Repair Manual 7. NOTE: Appl y t he parking brake control lever severalt imes t o centralize the brake shoes .
Rotat e t he parking brake adjust er unti l t he dis c cannotbe t urned, then back the adjust er off 8

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