parking brake NISSAN ALMERA N15 1995 Service Manual

DESCRIPTION
Shift Mechanism
CONSTRUCTION

18

,:-1
SAT214H

ill
Torque converter

@
Oilpump

@
Input shaft

@
Brake band

@
Reverse clutch

@
High clutch

o
Front sungear

@
Front pinion gear
@

Front internal gear

@l
Front planetary carrier

@
Rear sungear

@
Rear pinion gear

@
Rear internal gear

@
Rear planetary carrier

@
Forward clutch

@
Forward one-way clutch
@

Overrun clutch

@
Lowone-way clutch

@
Low
&
reverse brake

@
Parking pawl

@
Parking gear

@
Output shaft

@
Idlegear

@
Output gear

FUNCTION OFCLUTCH ANDBRAKE

Glutch andbrake components Abbr. Function
Reverse clutch
RIG
To
transmit inputpower tofront sungear
High clutch
HIG
To
transmit inputpower tofront planetary carrier
Forward clutch
FIG
To
connect frontplanetary carrierwithforward one-way clutch
Overrun clutch
OIG
To
connect frontplanetary carrierwithrearinternal gear
Brake band BIBTo
lock front sungear
Forward one-way clutch
F/O.G
When
forward clutchisengaged, tostop rearinternai gearfrom rotat-
ing inopposite direction againstenginespeed
Low one-way clutch LlO.GTo
stop front planetary carrierfromrotating inopposite direction
against enginespeed
Low
&
reverse brake L
&
RIB To
lock front planetary carrier

AT-14

Fluidleakage TROUBLE
DIAGNOSES
Preliminary Check(PriortoRoad Testing)
AIT FLUID CHECK
Fluid leakage check

1. Clean areasuspected ofleaking, -for example, mating
surface ofconverter housingandtransmission case.
2. Start engine, applyfootbrake, placeselector leverin"0"
position andwait afew minutes.
3. Stop engine.
4. Check forfresh leakage.

SAT288G
Fluidcondition check
Fluid levelcheck -Refer toMA section (CHASSIS AND
BODY MAINTENANCE).
Fluid
color
Oark orblack withburned odor
Milky pink
Varnished fluid,lighttodark brown
and tacky Suspected
problem
Wear offrictional material
Water contamination
- Road water entering through
filler tubeorbreather
Oxidation
- Over orunder filling
- Overheating

•

Road Testing

Perform roadtests using "Symptom" chart.Refertopage

AT-20.

"P"
POSITION

1. Place selector leverin"P" position andstart engine. Stop
engine andrepeat theprocedure inall positions, including
neutral position.
2. Stop vehicle onaslight upgrade andplace selector leverin
"P" position. Releaseparkingbraketomake surevehicle
remains locked.

"R"
POSITION

1. Manually moveselector leverfrom"P"to"R", andnote
shift quality.
2. Drive vehicle inreverse longenough todetect slippage or
other abnormalities.

"N"
POSITION

1. Manually moveselector leverfrom"R"and"0"to"N" and
note shift quality.
2. Release parkingbrakewithselector leverin"N" position.
Lightly depress accelerator pedaltomake surevehicle
does notmove. (When vehicle isnew orsoon afterclutches
have been replaced, vehiclemaymove slightly. Thisisnot
a problem.)

AT-17

TROUBLEDIAGNOSES
Stall Tasting
STALL TESTPROCEDURE

1. Check
AIT
and engine fluidlevels. Ifnecessary, addfluid.
2. Drive vehicle forabout 10minutes untilengine oiland ATF
reach operating temperature.

ATF operating temperature:
50 -80
0
e (122-176°F)
SAT6478
3.Set parking brakeandblock wheels.
4. Install atachometer whereitcan beseen bydriver during
test.

SAT513G 5.
~ ~ID
•

~c;>
SAT7678
Start
engine, applyfootbrake, andplace selector leverin

"0"
position.
6. Accelerate towide-open throttlegradually whileapplying
foot brake.
7. Quickly notetheengine stallrevolution andimmediately
release throttle.

• During test,never holdthrottle wide-open formore than5
seconds. Stall revolution .standard:
Refer toSDS, AT-166.
SAT514G
8.Move selector leverto"N" position.
9. Cool offATF.

• Run engine atidle foratleast oneminute.

10. Repeat steps5through 9with selector leverin"2", "1"and
"R
n
positions.

SAT7718 AT-24

TROUBLEDIAGNOSES

Pressure Testing
• Location ofpressure testport.
• Always replace pressure plugsasthey areself-sealing
bolts.

Test portfor
line pressure governor
pressure

SAT565D
LINEPRESSURE TESTPROCEDURE

1. Check AfTand engine fluidlevels. Ifnecessary, addfluid.
2. Drive vehicle forabout 10minutes untilengine oiland ATF
reach operating temperature.
ATF operating temperature:
50 -80°C (122-176°F)

SAT647B
3.Install pressure gaugetoline pressure port.
4. Set parking brakeandblock wheels.
Continue todepress brakepedalfullywhile performing line
pressure testatstall speed.

SAT513G
5.Start engine andmeasure linepressure atidle and stall
speed. Line pressure:
Refer toSOS, AT-166.

JUDGEMENT OFLINE PRESSURE TEST

• Ifline pressure doesnotrise, firstcheck tomake surethat
throttle wireisconnected properly.
1) When linepressure whileidling
is
low atall positions ("D",
"2", "1", "R"and"P"), theproblem maybedue to:

SAT494G •
Wear oninterior ofoil pump

AT-26

'-)
(

~)o

Front

SAT498GTROUBLE
DIAGNOSES
Pressure Testing(Cont'd)

• Oilleakage ator around oilpump, control valvebody, trans-
mission caseorgovernor
• Sticking pressure regulator valve
• Sticking pressure modifiervalve
2) When linepressure whileidling islow ataparticular
position, checkthefollowing.
• Ifoil leaks ator around low
&
reverse brakecircuit, line
pressure becomes lowin"R" position. Butline pressure is
normal in"P", "D", "2"or"1" position.
3) When linepressure ishigh while idling, pressure regulator
valve mayhave stuck.

GOVERNOR PRESSURETESTING

1. Check
AIT
and engine fluidlevels. Ifnecessary, addfluid.
2 .. Drive vehicle forabout 10minutes untilengine oiland ATF
reach operating temperature.

ATF operating temperature:
50 -80°C (122-176°F)

3. Install pressure gaugetogovernor pressureport.
4. Set parking brakeandblock rearwheels.
5. Jack upfront wheels.
6. Set selector leverinDposition anddrive vehicle.

Be careful ofrotating wheels.
•

Governor pressure:
• Governor pressureisnot generated whenvehicle is
stopped. (frontwheels arenotrotating.)
• Governor pressurerisesgradually inresponse tovehicle
speed. (frontwheel rotating speed.)

If not, check governor valveassembly. RefertoAT-36.

AT-27

Boltlength
'T'

mm (in)

55 (2.17)
50 (1.97)
65 (2.56)
25 (0.98)
40 (1.57)

Tightening
torque
N'm (kg-m, ft-Ib)

70 -79 (7.1 -8.1,51 -59)
70 -79 (7.1 -8.1, 51-59)
70 -79 (7.1 -8.1,51 -59)
30 -40 (3.1 -4.1, 22-30)
30 -40 (3.1 -4.1, 22-30)

CD

@

@
@

@

Bolt
No.
• Reinstall anypart removed.
• Adjust throttle wireandcontrol cable.Referto"ON-VEHI-
CLE SERVICE", AT-33,35.
•. Check inhibitor switch.Referto"Electrical Components
Inspection", AT-3D.
• Refill transaxle withATFandcheck fluidlevel, AT-17.
• Move selector leverthrough allpositions tobe sure that
transaxle operatescorrectly. Withparking brakeapplied,
idle engine. Moreselector leverthrough "N"to"D", to"2",
to "1" and "R". Aslight shock should befelt through the
hand gripping theselector eachtimethetransaxle is
shifted. •
• Perform roadtest-Refer to"ROAD TESTING", AT-17.
i

REMOVAL
ANDINSTAllATION

Installation (Cont'd)
SR engine models
SAT638A
SAT558DA


AIT
toengine

@
Engine to

AIT
AT-41

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

CHECKANDADJUSTMENT

OK
MINMax.
line
Min. line
SBR418C
Checking
BrakeFluidLevel

• Check fluidlevel inreservoir tank.Itshould bebetween
Max. andMin. lines onreservoir tank.
• Iffluid level isextremely low,check brakesystem forleaks.
• Ifbrake warning lampcomes on,check brakefluidlevel
switch andparking brakeswitch.

ABR159
SBR419C
Checking
BrakeLine

CAUTION: If leakage occursaround joints,retighten or,ifnecessary,
replace damaged parts.
1. Check brakelines(tubes andhoses) forcracks, deteriora-
tion orother damage. Replaceanydamaged parts.
2. Check foroilleakage byfully depressing brakepedalwhile
engine isrunning.

Changing BrakeFluid

CAUTION:
• Refill withnewbrake fluid"DOT 3"or"DOT 4".
• Always keepfluidlevel higher thanminimum lineonreser-
voir tank.
• Never reusedrained brakefluid.
• Donot mix different typesofbrake fluids(DOT3,DOT 4).
• Becareful nottosplash brakefluidonpainted areas;itmay •
cause paintdamage. Ifbrake fluidissplashed onpainted :•
areas, washitaway withwater immediately.
1. Clean inside ofreservoir tank,andrefill withnewbrake
fluid.
2. Connect avinyl tubetoeach airbleeder valve.
3. Drain brake fluidfrom each airbleeder valvebydepressing
brake pedal.
4. Refill untilnewbrake fluidcomes outofeach airbleeder
valve.
Use same procedure asinbleeding hydraulic systemto
refill brake fluid.
Refer to"Bleeding Procedure", BR-6.

BR-5

SEC.441
REAR
DRUM BRAKE

Front
m,W.
Rubber greasePOint
• .Brake grease point
~ :N.m (kg-m, f1-lb)

/il.
N.m(kg-m, in-Ib)

SBR772BC

Cl)
Wheel
cylinder assembly
(J)
Return spring
@

Shoe hold-down spring

@
Boot
@

Adjuster
@
Toggle lever

@
Piston
@

Shoe
@
Washer

@
Piston cup
@)
Adjuster lever
@

Retainer ring

@
Cylinder body
@

Adjuster spring
@

Shoe hold-down pin

@
Spring
@

Retainer
@
Plug

Removal
WARNING:
Clean brakeliningwithavacuum dustcollector tominimize the
hazard ofairborne particles orother materials.
CAUTION: Make sureparking brakeleverisreleased completely.
BR-25
•

Bolts
(M8
x
1.25) Wheel
cylinder
Adjuster
SBR280B
SBR020A REAR
DRUM BRAKE
Removal (Cont'd)

1. Release parkingbrakeleverfully,thenremove drum.

If drum ishard toremove, thefollowing procedures shouldbe
carried out.
a. Remove plug.Thenshorten adjuster tomake clearance
between brakeshoeanddrum asshown.
b. Tighten thetwo bolts gradually.
SBR785BA
2.
After removing retainer,removespringbyrotating shoes.

• Becareful nottodamage wheelcylinder pistonboots.
• Becareful nottodamage parkingbrakecablewhensepa-
rating it.

3. Remove adjuster.
4. Disconnect parkingbrakecablefromtoggle lever.
5. Remove retainerringwith asuitable tool.Then separate
toggle leverandbrake shoe.

Inspection -Wheel Cylinder

• Check wheelcylinder forleakage.
• Check forwear, damage andloose conditions.
Replace ifany such condition exists.

BR-26