1995 NISSAN ALMERA N15 Throttle valve

AUTOMATICTRANSAXLE

SECTION
AT
CONTENTS
PREPARATION ANDPRECAUTIONS
3

Special Service Tools 3
Commercial ServiceTools 6
Service Notice 7
Supplemental RestraintSystem(SRS)"AIR
BAG" (DualAirBag System) 7
Supplemental RestraintSystem(SRS)"AIR
BAG" (Single AirBag System) 7
DESCRIPTION
8

Cross-sectional View 8
Hydraulic ControlCircuit 10
Shift Mechanism 14
Control System 15
TROUBLE DIAGNOSES 17
Preliminary Check(PriortoRoad Testing) 17
Road Testing 17
Stall Tasting 24
Pressure Testing 26
Wiring Diagram -AT - 28
Electrical Components Inspection 30
ON-VEHICLE SERVICE 31
Control ValveAssembly andAccumulator 31
Throttle WireAdjustment.. 33
Control CableInstallation andAdjustment 35
Governor Valve 36
Inhibitor SwitchAdjustment 37
Differential SideOilSeal Replacement.. 37
REMOVAL ANDINSTALLATION
39

Removal 39
Installation .40MAJOR
OVERHAUL.. 42
All Models 42
Except Model34X81 .44
Model 34X81 45•
Shift Control Components 46
i

Oil Channel 47
Locations ofAdjusting Shims,Needle
Bearings, ThrustWashers andSnap Rings -
Except Model34X81 .48
Locations ofAdjusting Shims,Needle
Bearings, ThrustWashers andSnap Rings -
Model 34X81 .49
DiSASSEMBLy 50
REPAIR FORCOMPONENT PARTS 66
Manual ShaftandThrottle Lever 66
Oil Pump 70
Control ValveAssembly 74
Control ValveUpper Body 86
Control ValveLower Body 90
Reverse Clutch 93
High Clutch 97
Forward ClutchandOverrun Clutch 102
Low &Reverse Brake 108
Rear Internal Gear,Forward ClutchHuband
Overrun ClutchHub 112
Output Shaft,Output Gear,IdlerGear,
Reduction PinionGearandBearing Retainer
- Except Model34X81 116
Output Shaft,IdlerGear, Reduction Pinion
Gear andBearing Retainer -Model 34X81 121
Band Servo Piston Assembly 126
Final Drive -Except Model34X81 131
Final Drive -Model 34X81 135

DESCRIPTION
Hydraulic ControlCircuit(Cont'd)
MODEL 34X80
1-2

shift
valve
1-2
accumulator

valve

~ 1

i i

xU

::l.

x

-

Detent valve

L-
_
-

cooler- Low

&
reverse
Torque brake
Oil converter Overrun ReverseForward

I
,clutch Highclutch Bandservo clutchclutch

pump
I
tJ
(Jp::-
(T,
tf1
--;::;-;r.]O~
~J
1~
g~ (~ ~~
l]
J~ ~

~iJ -
N
~%~
UL"-'
IU4~1~~

C-1
-!
~frEJ!
1

6 ~, -~

m
~,--J
0

- ILJ
,-O...J

r
ar

r::r=< I'---,
II .(
I'
IJ

,'-
~
,,'
(
-

I -

=-
~tL ',
~H

I~

~ ~M~ ·

F=
f='l .,.11
1-
~I" ~

" ~r'
I
L...---...l
reducing_

L
2-3 .4-2
I
~valve= ~
shift ~seq!!.enc~
~ -valve ,-=-valve---j
h
1J;;;.Q"t....

=--=-.J
II
Ma~alve
lJl.
"~'L--.J

:;;; ~I 11
p
URNb'21
nn

=-.--'
I~
II
'i-V
D

I I -,

." c:
I
Throttle
':fj'~1 .

modifier

If.'

valve .

II
I
1"
";'Jnn!
l...,

:=~-' \~

Throttle valve ~Klckdown
modifier
valve
X
:Drain port
:::::: :Orifice
Pressure
regulator
valve
!lJF

D

00 cancel
I
~Y&

solenoid •
Pressure
modifier valve
Lock-up_
control
valve

4th

speed cut
valve
Overrun
clutch
control-
valve

-=~
I
r

rr=-
LL:
J~

L~

Torque
x'"~

converter
i
i

relief '
valve
2~ '-

3-4 shift valv~-HiliJI
Governor../l ..-
valve

SAT1971

AT-12

Unit:mm(in)
Name ofcontrol valves Length
ALength B Type
Pressure modifiervalve
Lock-up controlvalve 6.0
(0.236) 28.0(1.102)
4-2 sequence valve
Kickdown modulator valve
3-2 timing valve A
1st reducing valve 6.0
(0.236) 21.5(0.846)
Throttle modulator valve
4th speed cutvalve
1-2 accumulator valve 6.0
(0.236) 38.5(1516)
Torque converter reliefvalve 13.0(0.512) 17.0(0.669) B

SAT611D
REPAIR
FORCOMPONENT PARTS
Control ValveUpper Body(Cont'd)
Retainer plate:

Type B

A

E{1}

B

A

Type A

•Install proper retainer plates.

•

AT-89

REPAIRFORCOMPONENT PARTS
Control ValveLower Body(Cont'd)
DISASSEMBL Y

1. Remove valvesatretainer plate.
For removal procedures, referto"DISASSEMBLY" in"Con-
trol Valve Upper Body", AT-B?

SAT1130 Throttle valve

o
f2- •
Remove throttlevalveatE-ring.

•

INSPECTION
Valve springs

• Check eachvalve spring fordamage ordeformation. Also
measure freelength andouter diameter.

Inspection standard:
Refer to50S, AT-167.

• Replace valvesprings ifdeformed orfatigued.

Control valves

• Check sliding surfaces ofcontrol valves, sleeves andplugs
for damage.

ASSEMBLY
Throttle valve

• Insert throttle valvetocontrol valvebodyandthen install
E-ring tothrottle valve.

SAT147D
SAT13BO

Q

(Length)
SAT1490Pressure regulator valve

• Install pressure regulator valveafterassembling sleeve
plug, plugAand plug B.

SAT1500 AT-91

REPAIRFORCOMPONENT PARTS
Control ValveLower Body(Cont'd)
3-4 shift valve and2-3shift valve

• Install 3-4shift valve and2-3shift valve afterfixing plugsto
retainer platesonthe opposite side.

SAT151D
•Install control valves.
For installation procedures, referto"ASSEMBLY in"Con-
trol Valve Upper Body", AT-8?

SAT113D

"A"

"B"

U

Type I
"A"

Eli

Type II
SAT153D Retainer
plate:

Unit:mm(in)
Name ofcontrol
valve
Length
ALength 8 Type
Throttle
valve
&
detent
valve 6.0(0.236) 7.2(0.283)
1/

Pressure regulator
valve
3-4
shift
valve
2-3
shift valve
6.0(0.236) 28.0(1.102)
I

1-2
shift valve

Overrun
clutchcontrol
valve

• Install proper retainer plates.

AT-92

Installthrottle .
wIre totransm'
.
ISSlon case.

10.
Install th
rattle wiretothrattle lever.

11. I
nstall control
a. Insert manu valveassembl

• Apply ATF
t:I~:~v:alinto conir~1valve

valve.

assembly.
holes
ontransmiss'
Ion

ASSEMBLY
Assembly 4(C

7. Install ,.
ont'd)

case
tp
seals forband
• A . servooil

pply petroleum jellyto lip seals.

8. Install oilfilt

• Take carew~~
f.otr9?VernOr valve

I
s
dIrection. .
AT.160

\~~~~~C0\
~~ \.---.!

~ />"0

o
<=~~ )'()

Throttle lever'~ ~\

~ Il';-,~\ ,~\\)

,./, Manual plate
2\ (

. ~ -P-' (\
d (
Detent valve

/- \, 'sdJ :----, \,,,

n\ ';\ ~ "~
Manualvalve

\3l~w1:
nd\'~~\ \\)~
\(--' "'!f ()~
r:,
A~

\ ~ SAT414D
SAT664D ASSEMBLY
Assembly 4(Conl'd)

b, Set manual shaftinNeutral position.
c. Install control valveassembly ontransmission casewhile
aligning manualvalvewithmanual plateanddetent valve
with throttle lever.
d. Pass solenoid harnessthroughtransmission caseand
install terminal bodyontransmission casebypushing
it.

e. Install cliptoterminal body.

f.
Tighten bolts@,
@. ~
and
@.

Bolt length, number andlocation:

Bolt
@
@ @
@

Bolt length
'T'
mm
(in)
33,0
40,0
43,525,0
(1.299) (1.575)(1,713)
(0.984)

Number ofbolts
652
2

Tightening torque

7-9 (0,7 -0.9, 61-78)

N'm (kg-m, in-Ib)

12. Install oilpan.
a. Attach magnet tooil pan.

AT-161
•

SERVICEDATAANDSPECIFICATIONS (SOS)
Specifications andAdjustments (Cont'd)
CONTROL VALVES
Control valvereturn springs
Unit:
mm
(in)
Parts Part
No. Freelength
Outerdiameter
Model
Pressure modi-
34X69,34X70, 34X68,

d)
liervalve 31742-31X642502(0.9850) 79(0.311)
spring 34X80,
34X81

@)
Kickdown
modulator valvespring 31742-31X03 40.5(1.594) 9.0(0.354)
34X80 31742-31X0451.14(2.0134) 17.0(0.669)

@
1-2
accumula-
tor valve spring 34X69,
34X70,34X68,
34X81 31742-31X63
50.8(2000) 17.0(0.669)

@
3-2timing valvespring 31736-21
XOO 26.3(1.035) 7.2(0.283)
~ 1st
reducing valvespring 31835-21X0822.6(0.890) 7.3(0.287)
Upper
@
Torque converter reliefvalve spring 31742-31X06 23.5(0.925) 7.4(0.291)
body Throttlemodu-
34X68,34X81
31742-31X07 29.5
(1.161)
5.5(0.217)

(J)
lator valve
spring 34X69,
34X70, 34X80 31742-31X18 29.5(1161)
5.5(0.217)
34X69, 34X70, 34X80 31736-01X02 21.7(0.854) 6.65(0.2618)

@
4th
speed cut
34X68 31756-21X0222.6(0.890)
7.3(0.287)
valve spring
34X81 31835-21X0223.2(0913) 6.2(0.244)

@
Lock-up
controlvalvespring 31742-31X08
39.5(1.555) 50(0.197)

@
4-2sequence valvespring 31742-31X0939.5(1.555) 51(0.201)

-
Oilcooler reliefvalve spring 31872-31XOO17.02(0.6701) 8.0(0.315)
Throttle valve 34X81
31802-31X06 32.0(1.260) 10.0(0.394)

d)
anddetent
34X69,34X70, 34X68,
valve spring
34X80 31802-31X07
33.0
(1.299)
10.0(0.394)

(2)
Pressure regulatorvalvespring 31742-31XOO 5224(2.0567) 15.0(0.591)
Lower 34X68
31762-31XOO
52.0(2.047)
8.0(0.315)
body
@
3-4
shift valve
34X69,34X70,34X80 31762-31X13 52.0(2.047) 7.45(0.2933)
spring
34X81 31762-31X1152.0(2.047) 80(0.315)

@
2-3shift valve spring 31762-31X0152.7(2.075) 7.0(0.276)

cID
1-2
shift valve spring 31762-31X0245.9(1.807) 5.3(0.209)

@
Overrun clutchcontrol valvespring 31742-31X60 48.9
(1.925) 7.0(0.276)
AT-167
•