Front Disc Brake Caliper - Jeep Cherokee 1999 Electronic Service Manual

5 - 16 BRAKES
REM OVAL AN D I N STALLAT I ON (Cont inue d)
(6) Discon n ect va cu u m h ose fr om boost er ch eck
va lve.
(7) Rem ove kn ee blocker u n der t h e st eer in g col-
u m n .
(8) Rem ove r et a in in g clip t h a t secu r es boost er
pu sh r od t o br a ke peda l (F ig. 22).
(9) Rem ove n u t s a t t a ch in g boost er t o pa ssen ger
com pa r t m en t side of da sh pa n el (F ig. 23).
Fig. 22 Booster Push Rod
Fig. 23 Booster Mounting
(10) In en gin e com pa r t m en t , slide boost er st u ds
ou t of da sh pa n el, t ilt boost er u pwa r d, a n d r em ove
boost er fr om en gin e com pa r t m en t .
(11) Rem ove da sh sea l fr om boost er.
INSTALLA TION
(1) In st a ll da sh sea l on boost er.
(2) Align a n d posit ion boost er on da sh pa n el.
(3) In pa ssen ger com pa r t m en t , in st a ll boost er
m ou n t in g n u t s. Tigh t en n u t s ju st en ou gh t o h old
boost er in pla ce.
(4) Slide boost er pu sh r od on t o t h e br a ke peda l.
Th en secu r e pu sh r od t o peda l pin wit h r et a in in g
clip.
NOTE: Lubricate the pedal pin and bushing with
Mopar multi-mileage grease before installation.
(5) Tigh t en boost er m ou n t in g n u t s t o 39 N·m (29
ft . lbs.).
(6) In st a ll t h e kn ee blocker.
(7) If or igin a l m a st er cylin der is bein g in st a lled,
ch eck con dit ion of sea l a t r ea r of m a st er cylin der.
Repla ce sea l if cu t , or t or n .
(8) Clea n cylin der m ou n t in g su r fa ce of br a ke
boost er. Use sh op t owel wet t ed wit h br a ke clea n er for
t h is pu r pose. Dir t , gr ea se, or sim ila r m a t er ia ls will
pr even t pr oper cylin der sea t in g a n d cou ld r esu lt in
va cu u m lea k.
(9) Align a n d in st a ll m a st er cylin der on boost er
st u ds. In st a ll m ou n t in g n u t s a n d t igh t en t o 17.5 N·m
(155 in . lbs.).
(10) Con n ect va cu u m h ose t o boost er ch eck va lve.
(11) Con n ect a n d secu r e br a ke lin es t o com bin a t ion
va lve a n d m a st er cylin der. St a r t a ll br a ke lin e fit -
t in gs by h a n d t o a void cr oss t h r ea din g.
(12) In st a ll com bin a t ion va lve on boost er st u ds.
Tigh t en br a cket m ou n t in g n u t s t o 17.5 N·m (155 in .
lbs.).
(13) Con n ect wir e t o com bin a t ion va lve swit ch .
(14) On RH D veh icles in st a ll t h e coola n t r eser ve/
over flow t a n k. Refer t o Gr ou p 7 Coolin g Syst em .
(15) F ill a n d bleed ba se br a ke syst em .
(16) Ver ify pr oper br a ke oper a t ion befor e m ovin g
veh icle.

FRONT DISC BRAKE CALIPER

REMOVAL
(1) Ra ise a n d su ppor t veh icle.
(2) Rem ove fr on t wh eel a n d t ir e a ssem bly.
(3) Dr a in sm a ll a m ou n t of flu id fr om m a st er cylin -
der br a ke r eser voir wit h su ct ion gu n .
(4) Bot t om ca liper pist on in bor e wit h C-cla m p.
P osit ion cla m p scr ew on ou t boa r d br a ke sh oe a n d
cla m p fr a m e on r ea r of ca liper (F ig. 24). D o n o t
a llo w c la m p s c re w to be a r d ire c tly o n o u tbo a rd
s h o e re ta in e r s p rin g . U s e w o o d o r m e ta l s p a c e r
be tw e e n s h o e a n d c la m p s c re w.
(5) Rem ove br a ke h ose m ou n t in g bolt a n d disca r d
wa sh er s (F ig. 25).
(6) Rem ove ca liper m ou n t in g bolt s (F ig. 26).
(7) Tilt t op of ca liper ou t wa r d wit h pr y t ool if n ec-
essa r y (F ig. 27) a n d r em ove ca liper.
(8) Rem ove ca liper fr om veh icle.
X J