oil MAZDA 626 1987 Workshop Manual

CD I IV) CO cn

' side „
fVr'W^fl

Release
side^ji"
Throttle pressure
Throttle modulated pressure
Line pressure
Operating line pressure
Low reducing pressurre
I Operating low reducing pressure
H Torque converter pressure
. Lock-up control valve
| Oil pump
n >
z o m
co H
O m >
33
-< D 30 >
C n
O
O
30 O
o >
• m

CD
M CO G3
2-4 brake band
Forward clutch pressure-^ Throttle valve
Reverse clutch pressure—___ Low and reverse "brake pressure Coasting clutch pressure
1-2 accumulator To oil cooler iressurt -7777777? Lock-up control

?
N-R accumulator N-D accumulator }2-3 accumulator!
I2-3 timing valve Coasting bypass valve valve Servo control* valve (Blocked)
Pressure J modifier 1 valve x (Blocked)

I
Throttle modulator valve
1-2 shift valve
Throttle - back-up valve (Blocked) Low reducing valve
Pressure 23 regulator valve 20 3-2 timing valve Manual valve
LSD NRP
Apply side Throttle pressure
Throttle modulated pressure
Line pressure
| Operating line pressure
| Low reducing pressure
| Operating low reducibg pressure
I Torque converter pressure
13-2 I capacity «valve
valve
30 >
z Q m
w H
Q m > u
o r-o
m
< o
J3 >
O
o
35 O
o Sb > • m

CD
rv) GO -vi
2-4 brake band
toasting clutch pressure Low and reverse ' brake pressure
3-4 clutch pressure; •To oil cooler
N-R accumulator '2-3 accumulator
2-3 Timing valve 18 Coasting
Bypass valve Servo control v valve (Blocked)
Pressure modifier valve (Blocked)
Throttle modulator valve
3-4 shift valve
1-2 shift valve
Low reducing valve
19 Pressure regulator valve 20 3-2 timing valve 3-2 capacity valve Manual valve
••• Throttle pressure
Throttle modulated pressure
•• Line pressure
HH Operating line pressure
r I Low reducing pressure
I i Torque converter pressure
back-up valve (Blocked)
| Oil pump
1-2 accumulator ,
Forward clutch pressure^
Reverse clutch^ pressure-—__^
Lock-up control valve
Apply side
-< a
J3 >
o
o
30 o c
o >
• m
CD

Apply side 9 Throttle pressure
Throttle modulated pressure
Line pressure
Operating line pressure
Low reducing pressure
I i Torque converter pressure
I Oil pump

-vj CD
IV)
ro
o
2-4 brake
To forward clutch Throttle valve N-R accumulator 2-3 accumulator 1-2 accumu lator i N-D [accumulator
Coasting | bypass i n valve 2-3 timing valve Servo control valve
1-2 shift valve OD Lock-up valve
3-4 shift valve
Throttle backup valve 7=n 1 range r | control
•fl- Unn,Y?'ve.„;

Low reducing valve
2 range control valve •Pressure check port OD re-lease valve
Pressure regulator valve Lock-up support valve
Manual valve Kick-down valve 3-2 capacity valve
OD release solenoid valve Oil pump Pressure check port Pressure check port Governor valve 1-2 shift control valve
Line pressure
Operating line pressure
Throttle pressure
Throttle modulated pressure
i Governor pressure
Torque converter pressure
« Fx
Lock-up control valve
Throttle modulator valve
Apply side

TQ 3-4
| [
clutch
Throttle valve 2-3 accumulator N-R accumulator IN-D accumulator accumi lator
Coasting bypass | n valve
Servo control valve 2-3 timing valve Bypass valve
1-2 shift valve OD Lock-up valve
3-4 shift valve
Throttle backup valve x 1 range control nn valve 2 range control valve Pressure regulator valve Lock-up support valve
Manual valve Kick-down valve 3-2 timing valve,
Oil pump Pressure check port Pressure check port Governor valve
ILine pressure I

B
Operating line pressure [
I Throttle pressure
1 Throttle modulated pressure
1 Governor pressure
J Torque converter pressure
Apply side
Release side
To forward clutch
1 Throttle modulator valve
Low reducing valve
* Pressure check port
1-2 shift control valve
3-2 capacity valve
OD release solenoid valve

CD
cn
2-4 brake
To 3-4 clutch To forward clutch
Throttle valve 2-3 accumulator N-R accumulator 1-2 accumu' lator N-D accumu lator
Coasting bypass 1 n valve Servo control valve
1-2 shift valve
3-4 shift valve
Low reducing valve ri 1 range control -n n valve . ••MJ 2 range control | valve Pressure check port Pressure regulator valve
Manual valve Kick-down valve -13-2 timing valve.
Oil pump Pressure check port Pressure check port Governor valve
Throttle modulator valve
3-2 capacity valve
OD release solenoid valve
1-2 shift control valve
Throttle backup valve
Line pressure
Operating line pressure
Throttle pressure
Throttle modulated pressure

P
Governor pressure
Torque converter pressure
Apply side
2-3 timing valve
OD re-lease valve
Lock-up control valve
Lock-up support valve
OD lock-up valve
o
jj >
z a m
O o
o o *
c TJ
o
< a jj >
c •
o
o
J3 O
O 45b >
m

7C
AUTOMATIC TRANSAXLE
(3-Speed)
OUTLINE 7C— 2
SPECIFICATIONS 7C— 2
CROSS-SECTIONAL VIEW 7C— 3
OPERATION OF COMPONENTS . 7C— 4
FLUID PASSAGE LOCATION 7C— 5
TROUBLESHOOTING 7C— 8
GENERAL NOTE 7C— 8
QUICK DIAGNOSIS CHART 7C— 9
STEP 1
(PRELIMINARY INSPECTION).... 7C— 12
STEP 2 (STALL TEST) 7C— 14
STEP 3 (TIME LAG TEST) 7C— 17
STEP 4 (ROAD TEST) 7C— 18
STEP 5 (OIL PRESSURE TEST)... 7C— 20
ELECTRIC COMPONENTS 7C— 23
INHIBITOR SWITCH 7C— 23
KICK-DOWN SWITCH 7C— 23
KICK-DOWN SOLENOID 7C— 24
ON-VEHICLE MAINTENANCE 7C- 25
AUTOMATIC TRANSAXLE FLUID
(ATF) 7C— 25
SELECTOR LEVER 7C— 26
VACUUM DIAPHRAGM 7C— 27
REPLACEMENT OF CONTROL
VALVE 7C— 28
REPLACEMENT OF SERVO
PISTON RETURN SPRING 7C— 29
REMOVAL 7C— 30
PREPARATION 7C— 30
DISASSEMBLY 7C— 35
DISASSEMBLY-STEP 1 7C— 35
DISASSEMBLY-STEP 2 7C— 41
DISASSEMBLY-STEP 3 7C— 45
DISASSEMBLY-STEP 4 7C— 51
INSPECTION AND REPAIR 7C- 54
PRECAUTION 7C— 54
TORQUE CONVERTER 7C— 54
OIL PUMP 7C— 55
FRONT CLUTCH 7C— 58
REAR CLUTCH 7C— 62
REAR CLUTCH HUB 7C— 65
DRUM HUB 7C— 66
ONE-WAY CLUTCH INNER RACE 7C— 68
BAND SERVO 7C— 69
BRAKE BAND 7C— 70
PLANETARY CARRIER (FRONT).. 7C— 71
ONE-WAY CLUTCH 7C— 71
LOW AND REVERSE BRAKE 7C— 71
GOVERNOR 7C— 72
CONTROL VALVE BODY 7C— 75
DIFFERENTIAL 7C— 79
OUTPUT GEAR 7C— 82
IDLE GEAR 7C— 83
BEARING COVER ASSEMBLY .... 7C— 86
BEARING HOUSING 7C— 87
SIDE BEARING HOUSING 7C— 88
ASSEMBLY 7C— 89
PRECAUTION 7C— 89
ASSEMBLY-STEP 1 7C— 89
ASSEMBLY-STEP 2 7C— 98
ASSEMBLY-STEP 3 7C—106
ASSEMBLY-STEP 4 7C—111
INSTALLATION 7C—119
TORQUE SPECIFICATIONS 7C—119
HYDRAULIC CIRCUIT 7C—125
OUTLINE 7C—125
P RANGE 7C—126
R RANGE 7C—127
N RANGE 7C—128
D RANGE (1ST GEAR) 7C—129
D RANGE (2ND GEAR) 7C—130
D RANGE (3RD GEAR) 7C—131
D RANGE (KICK-DOWN; SHIFT
VALVES IN 2ND POSITION) 7C—132
2 RANGE (2ND GEAR) 7C—133
1 RANGE (1ST GEAR) 7C—134
1 RANGE (2ND GEAR) 7C—135
76G07C-001

OUTLINE 7C
CROSS-SECTIONAL VIEW
76G07C-003
1. Transaxle case
2. Front clutch
3. Rear clutch
4. Connecting shell
5. Rear clutch hub
6. Planetary carrier (front)
7. Sun gear
8. Low and reverse brake
9. One-way clutch
10. One-way clutch inner race
11. Planetary carrier (rear)
12. Drum hub assembly
13. Bearing housing
14. Output gear
15. Turbine shaft
16. Oil pump shaft
17. Bearing cover
18. Oil seal
19. Torque converter
20. Converter housing
21. Oil seal
22. Speedometer drive gear
63U07B-003
23. Side gear
24. Pinion gear
25. Pinion shaft
26. Differential gear case
27. Ring gear
28. Oil seal
29. Side bearing housing
30. Control valve body
31. Oil pan
32. Oil pump
7C-3

7C OUTLINE
OPERATION OF COMPONENTS
76G07C-004
1. Crankshaft 7. Internal gear 13. Output gear
2. Torque converter 8. Planetary carrier (front) 14. Idle gear
3. Front clutch 9. Pinion gear 15. Parking gear
4. Brake band 10. Low and reverse brake 16. Oil pump
5. Rear clutch 11. Planetary carrier (rear)
6. Connecting shell 12. One-way clutch
Shift position Gear ratio Clutch Low and reverse brake
Band servo One-way clutch Shift position Gear ratio Front Rear
Low and reverse brake Operation Release One-way clutch
P — O
R 2.400 O o O
N —
D
1 2.841 O O
D 2 1.541 O O D
3 1.000 O o ® o
2 1.541 o o
1 2 1.541 0 0 1 1 2.841 0 o
® : Indicates fluid pressure to servo but not applied due to pressure difference in servo. 76G07C-005
7C-4