Page 430 of 1681
I
t
In @ or @ position, the optimum gear is automatically selected from 1st, 2nd, 3rd and 4th gears, accororng ro con-ditions such as the balance between throttle opening (engine load) and vehicle speed.
[Dn] or lDil Posirion, tsr geal
1. Hydraulic pressure is appiied to the 1st clutch, which rotates together with the mainshaft, and the mainshaft 1stgear rotates,
2. Power is transmitted to the countershaft 1st gear, which drives the countershaft via the one-way clutch.
3. Power is transmitted to the final drive gear, which drives the final driven gear.
NOTE:
In lDr'l or lDil position, hydraulic pressure is not applied to the 'tst-hold clutch.
TOROUE CONVERTER
1ST CLUTCH
MAINSHAFT
FINAL ORIVE GEAR
COUNTEBSHAFT
ONE-WAY CLUTCH
PARKING GEAR
\
14_13
,
FINAL DRIVEN GEAR
Page 431 of 1681
Description
Power Flow (cont'd)
lD+l or DglPosition, 2nd gear
1. Hydraulic pressure is applied to the 2nd clutch, which rotates together with the mainshaft, and the mainshaft 2nd
gear rolares.
2. Power is transmitted to the countershaft 2nd gear, which drives the countershaft
3. Power is transmitted to the final drive gear, which drives the final driven gear.
NOTE:
In @ or f_fl position. 2nd speed, hydraulic pressure is also applied to the 1st clutch, but since the rotation speed
ot 2nd gear exceeds that of 1st gear, power from lst gear is cut off at the one-way clutch
TOROUE CONVERTER
MAINSHAFT
COUNTERSHAFT
FINAL DRIVE GEAR
L
2ND CLUTCH
14-14
FINAL DRIVEN GEAR
Page 432 of 1681
I
I
I
lDr or Drl Position, 3rd gear
1 . Hydraulic pressure is applied to the 3rd clutch. Power from the mainshaft 3rd gear is transmitted to the countershaft3rd gear.
2, Power is transmitted to the final drive gear, which d.ives the linal driven gear.
NOTE:
In @ or @] position, 3rd speed, hydraulic pressure is also applied 10 the 1st clutch, but since the rotarron speedof 3rd gear exceeds that ot 1st gear, power from lst gear is cut ott at the one-way clutch.
TOROUE CONVERTER
MAINSHAFT
COUNTERSHAFT
{cont'd}
14-15
MAINSHAFT 3RD GEAR
3RD CLUTCH
Page 433 of 1681
Description
Power Flow (cont'd)
E Position, 4th goal
1. Hydraulic pressure is applied to the 4th clutch. which rotates together with the mainshaft. and the mainshaft 4th
gear rotales.
2. Power is transmitted to the countershaft 4th gear, which drives the countershaft'
3. Power is transmitted to the final drive gear, which drives the tinal dtiven gear'
NOTE:
ln @ position, 4th speed, hydraulic pressure is also applied to the lst clutch, but since the rotation speed of 4th
gear exceeds that of '1st gear, power from 1st gear is cut ofl at the one-way clutch
TOROUE CONVERTERMAINSHAFT 4TH GEAR
4TH CLUTCH
MAINSTIAFT
COUNTENSHAFT
{
14-16
L
Page 434 of 1681
ILB.l Position
'1. Hydraulic pressure is switched by the manual valve to the servo valve, which moves the reverse shitt fork to thereverse position. The reverse shitt fork engages with the reverse selector, the reverse selector hub,and the counter-shaft reverse gear.
2. Hydraulic pressure is also applied to the 4th clutch. Power is transmitted from the mainshaft reverse gear vta rnereverse idler gear to the countershalt reverse gear.
3. Rotation direction of the countershaft reverse gear is changed via the reverse idler gear.
4. Power is transmitted to the final drive gear, which drives the linal driven gear.
TOROUE CONVERTER
4TH CLUTCH
MAINSHAFT
COUNTERSHAFT
REVERSE SELECTORHUBFINAL ORIVE GEAR
REVENSE SELECTOR
COUNTERSHAFTREVERSE GEAR
Page 440 of 1681
The valve bodies include the main valve body, the secondary valve body, the regulator valve body, the servo body andthe lock-up valve bodv.
The ATF pump is driven by splines behind the torque converter which is attached to the engine, Fluid {lows through
the regulator valve to maintain specified pressure through the main valve body to the manual valve, directing pressure
to each of the clutches.
SHIFT CONTROL SOLENOIDVALVE ASSEMBLY
RIGHT SIDE COVER
LOCK'UP VALVE BODYSERVO BODY
SECONDARY VALVEBODY
VALVE BODY
REGULATOR VBODY
LOCK-UPOIL PUMP GEARS
SOLENOID VALVEASSEMBLYTOROUEHOUSING
{cont'd)
%<->--::/ )C)
IrY,
14_23
'
Page 444 of 1681
Servo Body
The servo body is located on the secondary valve body.
The servo body houses the servo valve (integrated with the shift fork shaft), the throttle valve B, and the accumulator pis-
tons.
THROTTLE
Accumulator Pistons
The accumulator pistons are assembled in the servo body and right side cover. The 1st-hold clutch accumulator piston is
in the right side cover, and the 1st,2nd,3rd, and 4th accumulator pistons are in the servo bodv.
lST.HOLD ACCUMULATORPISTON
lST ACCUMUI.ATOR
2ND ACCUMULA3RO ACCUMULATOR PISTON
THBOTTLE LONG VALVE
RIGHT SIDE COVER
14-27
Page 445 of 1681

Description
Hydraulic Flow
G€n6.al Chart of Hydraulic Pr6sure
ATF Pump - Regulator Valve
Distribution of Hydraulic Pressuro
Line Pressure -----r- Modulator Pressure
F-- Thronle B PressureL Clutch Pressure
Toroue Convener Pressure
Lubrication Pressure
. Regulator Valve ----; Torque Converter Prossure
f- Lubricaiion PrassureL To Regulate Line Pressure
Manual Valve - To Select Line Pressure - Clutch Pressure
. Modulator Valve Modulator Pressure ---- --I----- Shift Control Solenoid ValvosL- Lock-uD Control Solenoid Valves
. 1-2 Shift Valve -----l
. 2-3 Shift Valve ----f- Clutch Pressure. 3-4 Shift Valve ----------r
. Throttle Valve - Throttle B Pressure
NO,DESCRIPTION OF PRESSURENO.DESCRIPTION OF PR€SSURENO.DESCRIPTION OF PRESSURE
1LINE6C
MODULATOR(LOCK.UP CONTROL
SOLENOID VALVE A)
55THROTTLE B
LINE6D
MODULATOR(LOCK-UP CONTROL
SOLENOID VALVE B)
56THROTTLE B
LINEaLINETHROTTLE B
LINE101ST CLUTCH5dTHROTTLE B
LINE151ST-HOLD CLUTCH90TOROUE CONVERTER
4LINElST.HOLD CLUTCH91TOROUE CONVERTER
LINE18LINE92TOROUE CONVERTER
5LINE202ND CLUTCH93ATF COOLER
LINE212ND CLUTCH94TOROUE CONVERTER
5'LINE25LINELUBRICATION
6MODULATOR303RD CLUTCH96TOROUE CONVERTER
MODULATOR313RD CLUTCH97TOBOUE CONVERTER
64MODULATOR(SHIN CONTROLSOLENOIO VALVE A)404TH CLUTCHooSUCTION
6BMODULATOR(SHIFT CONTROT SOLENOID VATVE B)414TH CLUTCHXBLEED