1993 NISSAN SERENA wheel

REAR
AXLE -
Axle Shaft (Rigid
Re€r A16 typ€)
Disassembly (Cont'd)
4. Cul6llar wirh a chisel.
B€ @E Ul not lo d.m.ge dle
shall
Femove wheel beaiig aid coilar,
whee beadne has been r€mov€d,
Once oll
cuner hG been renowd Ed@ whh. tw
one,
Inspec{on
A(LE SHAFT
r Check axl6 shafi straighlness,
cracks, damage, wear of
di$onon. Raplace I necessary.
WHEEL BEAFING
. Make sucwh@ b6arng rolls lreely
and is f@e lrcm no se,
c6cks, p
ning ol w€ar.
Fepla.e it necessary.
AXLE CASE
. Ch€ck
axle case lor the existence ol cracks .nd
deloma-
rions Fepla@
it necessary.
8A.25

SERVICE
DATA AND
SPECIFICATIONS (S.O.S.)
WHEEL AUGNMEm ([F,s.
Typ€)
WHEEL BEAFING (.F.S.
lype)
UPPER AND LOWEF BALL
JOINT
(.8.s. Type) Inspeclion
and Adiustfirent
WHEEL RUNOUT
lFadial .nd
bre6l)
FIGID FEAF AXLE
SPFING @NNECTING ROD (l.F,S.
TyFE)
RA€2

FROI{T
DISC BRAKE BY28VA
and LD28VB
ffi
iffi*
t Inspection
INSPECNON OF BFAKE
DRAG FOBCE
(l) swins cylinder body lpwad
(2) Mak6 s!rc
lhatwheelbeaing is adiusled pbpery.
Relerto
(3) M.asu€ olalins lorce (F,).
(4) Insial €lip6r wi$ pads
to the odginarposilion.
(5) Oepress bEk€ pedal
lor 5 semnds-
(6) Reease brake pedal,
rctale dis
btor 10 rcvoulions.
(7) M€as!rc @rauns ior@
{Fr.
(3) CaLculare b€k6
dag loroe by subiacting F1
lbm Fz.
MdiBUm bEl€ ddg lo@ (F2 -
Fl):
103,0 N (10.5
kg,232 lb)
I ir i. not wihin sDecmcadff, checl plB
rnd
. ilak
5uE ih.r vh6l b.adng E adj$iad
. Dl$
Fo& .nd
dl& Elor mEr
h. dn.d.
DISC PAO
Check ds. pad
ror w6ar or damas€.
Ilad wr llmn (A):
20 nn (0.079
In)
/..'d, FOTOR
standad lhlctns:
BD23VA 22O nn (0,A6
in)
LmBVB 2ao mm (1.02In)
Bo23VA 20.0 nm (0.78
In)
LD4VB 240 nn (0.94
In)
BR'21

FBONT
DISC BBAKE (BI)28VA
and LD28VB)
Inspeclion (Conr
d)
ROIOR
1, S€cur€ rolor
lo wh€61
hub wirh at €asl rwo nuts.
2. Check runoul usinga dialindicalor.
Mal€ &e $.r whed bearlng dd.l end phy
16 whhln rh. specl-
fb.lionr b.loE Mdng. F6ldio *don FA.
t{uimm runoul:
0.0? mm
{0.0@r in)
3. ll
lh6 runout is oul ol spaciielion, iind minimum runoul
a. Femove nuls and rcior from wheel hub.
b. Shilt th6 rclor on€ hol€ and s6cu€ olor to wh@l hub
d. Bepeal deps a. to c- so that dinimum tu.oul position
4. ll lhB runout is slilloul ol sp€cilietion, tun Etor wilh on'ef
BR-23

REAR
DRUM
BRAKE
Removal (Cont
d)
2. Aft.r €moving ralain€r snd sh@ hold-doM sp ng, Gmove
€luh and adiuslar
spdnos.
B. erelul .ot lo do.q. p€rkinq
bEk c*lavhd $p.Eling
It
4- Disconn€cl pading
b€k6 €bl6 f@m loqgle l6v€r.
Inspecllon -
Wheel C]llnder
. Ch€ck wh€el cylinder lor leakaqe.
. Check lbi w@r, damaqe and loose
@ndilions.
Beplace it a.y such condiion exists.
Wheel Cf linder
Overhaul
Pay atl€nlion so as nol to sc€tch cylindar wh.n insra I no pis'
.EEO ^
@m^v
EE@/ t@6G
G!@ F^eFD
Inspeclion -
Drum
M.ldoun hB dl.mlei
2555 mm (10,05In)
out t-rcundns:
0o5 mn (0,0ot9
In) or be3
. Conlactsufa€
should b€ lin6li.ished wirh No.120
to 150
. Usinq a drum lalhe, lathe bdke drum il it shows so nq,
oanial w€ar of sl€Do€d w€sf.
. Anar
bEke drum has been comoleielv recondhoned or
rcplaced, checkdtun and sh@slor p@per
corlacl paft6h.
r._,ru\
Kg9
gR-25

ANTI.LOCK
BRAKING SYSTEM
PurDose
. Ex@ssi@ braking in
any .ondilion (Dry
or w€t) wi I advers€ly atf€cl lh€ nomal llh ng ot lh6 v6hi'
oles wheels and they may
Lo.k
uP.
. whenlhe to.i wheels are lo.ked, a vehicle
ca.nol be controled by
lhe
sleenno syst€m.
. When
dre Garwhees are locked,lhe vehi.le wl enlerailalspin.
The A.B.S., by the lse ol eleclronc a.d hydraulic componenls, allows lor.onlrc of braking ior@ so
thal lockinq ot lhe wheels €n be avoided in the crcunstai@s des.rbed above.
1) Ensur€s prcper
lracking perfomance
lhrcuQh steefng wheelopealion.
2) Enabl6s obsiacles lo b€ avo d6d lhough sbenng who6lopeaton.
3) Ensur€6 vehicl€ slabilily by p6v6ntng
llat spins.
o s 0
$'
rFl ttEF-d
Yffi- "Wod
Ooeration
The A.B.S. is 6nlbll6d by an €laclbnic
@nlrolunit (E
C U.), whioh rece ves signals tom vafous s€n-
sors relalinq lo v€hi.le conditon.
speed, elc.
The hydraulc
circuit is
@nlrolled by an actuabr oontaining an e ecnc molof, pump,
accumllalor and
3
sole.oids. The E.C.U. dneds lhe aclualor to ncrease, hod or docr€ase hvdElli.
Dressure to
allor
Th6 E.C.U. rcc6iv€s inlomaton reqarding
wheelspeed trom senso6, houiled one pef
wh€€|.
When ex@ssiv€ takng
lorce
causes a whee b lock, the E.C.U. sends a sgnallo th6 acrualor ro
release the rocked
wlieer.
as the wheelu.lo.ks, l €n be steercd. The E.c.u. s.nses wh6elspeed is indeasng
and re-apples
hydGulic pressu€.
The wh6e locks aoain, is €leas6d, sleered,
baked, and so on. rhs @nlinuous
lock nq and unlocking oi
lhe whees
alos lor €pid speed reduction and the vehicl€ lo b€
6leeed in
Ths hydraulic pfgssurs€n
also b6 "h€ld" conslant
bya signalsenl lom the E.C.U. to lhe aclualof.
Th6 €ar wh€€ls utl26 a load's€nsing va ve
lo ilnher prcveni
whee ocking, especially undef min mum
However, when rhe vehicre
speed is ress
than l0 ktr/h (6MPH),
rhis sysl.m do6s nor wolk
BBSO

ANFLOCK
BRAKING SYSTEM
Operatlon (Cont'd)
i; !l
ii*
-ii
VEHICLE SPEED
. The appll€d bal@ @ndldon ls dp6ssEd by a slip €iio, s shown abova. ll lh€ slip
Etio i6
in th.
€ng€ lom 0.15 lo O.3, tha sh€.| hs ad€quarg coh€ nO p€rloma.@,
and d$ minimum siopplng
distan@ €n b€ achi€v€d.
. Th. srip 6rio lomula indi@r€s rhe @nrrcl ol wheel sp@d by rhe bEk6s.
The Aili-lock Sraklng Sysl€m (A-8.S.)
conlrcls b€k6lluid p@su€
usi.s th. 6lip ratios and lock-
Ing @ndlllon @lculaid ontain€d in rh. A.B-S. control unit.
. To adjusl whel sp€.d so lhrr fi6 oprinum 3lip htio
6 b. obiain.d, th. a,a.s, musi s6ns6 wh4l
3p4d sd v€hiolE sp.6d lhrcugh
a wh*l
.pe€d 5en6or.
ll lha bak
i6
appli€d, €speclally in lhe l@ked wh66l condirion, tE whicl6 sp@d
difi€c fom
th€
. All€r
lh6 wh€.| sp€6d chang€. l@n
th€ vohicle
sp*d due to ex@$lve brake for€, th6 A.B.S. dL
culat€s Ehicle.oe€d when lhe €du@d wh@l so4d @ch6s thB minimum.
VEHICLE
SPEED -
WHEEL SPEED
BB-€1

AI.I'I]-LOCK
BRAKING
SYSTEM
Removal and lnstallation
B. @r.lul rbt to d.mgE sd €dg€ sd $|Er Elor i.€lh.
FFONT WHEEL SENSOR
FEAF SENSOF
88.38