1995 NISSAN ALMERA N15 brake rotor

BRAKESYSTEM
SECTION

CONTENTS BR
PRECAUTIONS ANDPREPARATION
3

Precautions 3
Special Service Tools 4
Commercial ServiceTools 4

CHECK ANDADJUSTMENT 5

Checking BrakeFluidLevel 5
Checking BrakeLine 5
Changing BrakeFluid 5

AIR
BLEEDING 6

Bleeding Procedure 6

BRAKE HYDRAULIC LINE 7

Removal 8
Inspection 8
Installation 8

CONTROL VALVE 9

Proportioning Valve 9

BRAKE PEDALANDBRACKET 11

Removal andInstallation 11
Inspection 11
Adjustment 11

MASTER CYLINDER 12

Removal 12
Disassembly 12
Inspection 13
Assembly 13
Installation 14

BRAKE BOOSTER 15

On-vehicle Service 15
Removal 15
Inspection 16
Installation 16

VACUUM HOSE 17

Removal andInstallation 17
Inspection 17

FRONT DISCBRAKE 19

Pad Replacement.. 19
Removal 22
Disassembly 22Inspection
-Caliper 22
Inspection -Rotor 23
Assembly '".23
Installation 24

REAR DRUM BRAKE 25

Removal 25
Inspection -Wheel Cylinder 26
Wheel Cylinder Overhaul 27
Inspection -Drum 27
Inspection -Lining 27
Installation 27

REAR DISCBRAKE 29

Pad Replacement 29

~~s:~::~'~I~':::::::::::'::: ::.::::::::.::::::.::::::::::.::::::.::::::::~~ •••

Inspection -Caliper 32
Inspection -Rotor 33
Assembly 33
Installation 35

PARKING BRAKECONTROL 36

Removal andInstallation 36
Inspection 36
Adjustment ." 37

ANTI-LOCK BRAKESYSTEM 38

Purpose 38
Operation 38
ABS Hydraulic Circuit 38
System Components 39
System Description 39
Removal andInstallation .40
Wiring Diagram -ABS - .45

TROUBLE DIAGNOSES
52

Contents 52
Component PartsandHarness Connector
Location 64

SERVICE DATAANDSPECIFICATIONS (SDS)86

General Specifications 86
Inspection andAdjustment 88

~0
tJ

L:{SR020D
FRONT
DISCBRAKE
Pad Replacement

WARNING:
Clean brakepadswithavacuum dustcollector tominimize the
hazard ofairborne particles orother materials.
CAUTION:
• When cylinder bodyisopen, donot depress brakepedalor
piston willpop out.
• Becareful nottodamage pistonbootorget oilonrotor.
Always replace shimswhenreplacing pads.
• Ifshims arerusted orshow peeling ofthe rubber coat,
replace themwithnewshims.
• Itis not necessary toremove connecting boltexcept for
disassembly orreplacement ofcaliper assembly. Inthis
case, suspend cylinderbodywithwire soasnot tostretch
. brake hose.
1. Remove mastercylinder reservoir cap.
2. Remove lowerpinbolt.
3. Open cylinder bodyupward. Thenremove padretainers,
return spring (Except AD22VF brakemodel) andinner/ol,lter
shims. Standard padthickness:
CL22VD andCL22VE 11mm (0.43 in)
CL22VF 10mm (0.39 in)
Pad wear limit:
2.0 mm (0.079 in)
Carefully monitorbrakefluidlevel because brakefluidwill
return toreservoir whenpushing backpiston.

BR-19
•

Pistonbootretainer (AD22VF only)
Piston boot
Piston seal
FRONT
DISCBRAKE
Inspection -Caliper (Cont'd)
PISTON

Check pistonforscore, rust,wear, damage orpresence offor-
eign objects. Replace ifany ofthe above conditions are
observed.

CAUTION:
Piston sliding surface isplated. Donot polish withemery paper
even ifrust orforeign objects arestuck tosliding surface.
SLIDE PIN,PINBOLT ANDPINBOOT

Check forwear, cracks, rustorother damage. Replaceifany of
the above conditions areobserved.

Inspection -Rotor
RUNOUT
1: Secure rotortowheel hubwith atleast twonuts (M12 x
1.25).
2. Check runout usingadial indicator.

Make surethatwheel bearing axialendplay iswithin thespec-
ifications beforemeasuring. RefertoFA section ("FrontWheel
Bearing", "ON-VEHICLE SERVICE").
Maximum runout:
SBR936A 0.07mm(0.0028 in)

3.
If
the runout isout ofspecification, findminimum runout
position asfollows:
a. Remove nutsandrotor fromwheel hub.
b. Shift therotor onehole andsecure rotortowheel hub
with nuts.
c. Measure runout.
d. Repeat stepsa.to c.so that minimum runoutposition can
be found.
4. Ifthe runout isstill outofspecification, turnrotor withon-car
brake lathe("MAD, DL-8700", "AMMCO700and 705" or•••
equivalent).

THICKNESS Thickness variation(Atleast 8positions):
Maximum 0.02mm(0.0008 in)

If thickness variationexceedsthespecification, turnrotor with
on-car brakelathe.

Rotor repair limit:
CL22VD andCL22VE 16.0mm(0.630 in)
CL22VF 24.0mm(0.945 in)
SBR944A Assembly
1. With piston bootfitted topiston, insertpiston bootinto
groove oncylinder bodyandinstall piston.
2. Properly securepistonboot.
3. Secure pistonbootwithretainer.
(AD22VF modelonly)

Piston

SBR777B BR-23

SBR023DREAR
DISCBRAKE
Pad Replacement
WARNING:
Clean brakepadswithavacuum dustcollector tominimize the
hazard ofairborne particles orother materials.
CAUTION:
• When cylinder bodyisopen, donot depress brakepedal,
otherwise pistonwillpop out.
• Becareful nottodamage pistonbootorget oilonrotor.
Always replace shimswhenreplacing pads.
• Ifshims arerusted orshow peeling ofrubber coat,replace
them withnewshims.
• Itis not necessary toremove connecting boltexcept for
disassembly orreplacement ofcaliper assembly. Inthis
case, suspend cylinderbodywithwire soas nol tostreich
brake hose
• Carefully monitorbrakefluidlevel because brakefluidwill
return toreservoir whenpushing backpiston.

1. Remove mastercylinder reservoir cap.
2. Remove brakecablelockspring.
3. Remove cableguide fromcaliper assembly.
4. Disconnect cable.
5. Remove lockspring frombrake hose.Thenremove brake
hose from bracket.
6. Remove lowerpinbolt.
7. Open cylinder bodyupward. Thenremove padretainers,
and inner andouter shims.

Standard padthickness:
10 mm (0.39 in)
Pad wear limit:
1.5 mm (0.059 in)

•

Commercial

service tool

SBR868C
8.
When installing newpads, pushpiston intocylinder bodyby
turning pistonclockwise.

Carefully monitorbrakefluidlevel because brakefluidwill
return toreservoir whenpushing backpiston.
BR-29

SBR847
SBR247B REAR
DISCBRAKE
Inspection -Rotor
RUBBING SURFACE

Check rotorforroughness, cracksorchips.

RUNOUT
1. Secure rotortowheel hubwith atleast twonuts (M12 x1.25).
2. Check runout usingadial indicator.

Make surethatwheel bearing axialendplay iswithin thespec-
ifications beforemeasuring. Referto"Rear Wheel Bearing" of
"ON-VEHICLE SERVICE"inRA section.

3. Change relativepositions ofrotor andwheel hubsothat
runout isminimized.

Maximum runout:
0.07 mm(0.0028 in)
THICKNESS Rotor repair limit:
Minimum thickness
CL7HB 6.0mm (0.236 in)
CL9HC 8.0mm (0.315 in)
Thickness variation(Atleast 8portions)
Maximum 0.02mm(0.0008 in)

Replace rotorifany ofthe above donot meet thespecifications .

Assembly
1. Insert camwithdepression facingtowards openendofcyl-
inder.
2. Generously applyrubber grease tostrut andpush rodto
make insertion easy.

BR-33
•

Togglelever
Stopper
Front

V
PARKING
BRAKECONTROL
Adjustment
Before orafter adjustment, payattention tothe following points.
a. For rear discbrake besure thattoggle leverreturns to
stopper whenparking brakeleverisreleased.
b. There isno drag when parking brakeleverisreleased.

SBR029D
SBR042D
1.
Adjust clearance betweenshoeanddrum/pad androtor as
follows:
a. Release parkingbrakeleverandloosen adjusting nut.
b.- Depress brakepedalfullyatleast 10times withengine run-
ning.
2. Pull control lever4-5 notches. Thenadjust control leverby
turning adjusting nut.

196 N(20 kg,44Ib)

/

SBR073D
3.
Pull control leverwithspecified amountofforce. Check
lever stroke andensure smooth operation.

Number ofnotches:
Drum brake: 7-
8

Disc brake: 8-
9

4. Bend warning lampswitchplate toensure following. Warn-
ing lamp comes onwhen leverispulled "A"notches and
goes outwhen fullyreleased.

Number of
"A"
notches: 1or less
BR-37
•

ANTI-LOCKBRAKESYSTEM
System Components

Dual proportioning
valve
Rearwheel sensors
For LHD models, controlunit
is located onthe opposite side.

SBR048DB

Control unit

s::';o~'~W.
r Magnetic flux~ _~-Coil

I .I

Tooth~ Sensorrotor
/ ~m~f onetooth

v:~-- System
Description
SENSOR

The sensor unitconsists ofagear-shaped sensorrotoranda
sensor element. Theelement contains abar magnet around
which acoil iswound. Thesensor isinstalled onthe back side
of the brake rotor.Sine-wave currentisgenerated bythe sen-
sor asthe wheel rotates. Thefrequency andvoltage increase(s) •
as the rotating speedincreases. :•

V: Induced electromotive force

SBR124B
SBR049DA CONTROL
UNIT

The control unitcomputes thewheel rotating speedbythe sig-
nal current sentfrom thesensor. Thenitsupplies aDC current
to the actuator solenoid valve.Italso controls ON-OFFopera-
tion ofthe valve relayandmotor relay.Ifany electrical malfunc-
tion should bedetected inthe system, thecontrol unitcauses
the warning lamptolight up.Inthis condition, theASS willbe
deactivated bythe control unit,andthevehicle's brakesystem
reverts tonormal operation.

BR-39

ANTI-LOCKBRAKESYSTEM
Removal andInstallation
CAUTION: Be careful nottodamage sensoredgeandsensor rotorteeth.
When removing thefront orrear wheel hubassembly, discon-
nect theABS wheel sensor fromtheassembly andmove it
away.
FRONT WHEEL SENSOR
Front wheel sensor (LH) ~!Ii

3.9-5.9 (0.4 -0.6, 35-52)
~: Nom (kg-m, ft-lb)
~: Nom(kg-m, in-Ib)

SBR030DA
REAR WHEEL SENSOR
BR-40
\

L
Rear wheel sensor (LH)

~: Nom (kg-m, ft-Ib)
~: Nom(kg-m, in-Ib)

SBR031DA