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Description
Power Flow (cont'd)
[liJ
position
1.
Hydraulic pressure is switched by the manual valve to th
e
servo va lve, which moves the reverse shift fork to the
reverse position
.
The reverse shift 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 via the
reverse idler gear to the countershaft reverse gear.
3.
Rotational 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 final driven gear and the transfer shaft
drive
gear (4WD).
5.
The transfer shaft drive gear drives the transfer shaft and the transfer driven gear shaft
(4WD).
NOTE:
The illustration shows the 4WD
automatic.
transmission;
power flow of the 2WD automatic transmission is identical
to
the 4WD except for parts related to the transfer assembly.
TORQUE
MAINSHAFT REVERSE
4TH
CL~TCH
FINAL DRIVE
{4WDI
TRANSFER SHAFT {4WDI
TR,""I!,FER DRIVEN GEAR SHAFT {4WDI
14-14
(not shown)
_ - - - COUNTERSHAFT
REVERSE GEAR
REVERSE SELECTOR
HUB
REVERSE SELECTOR
~---..._...J~
REVERSE SHIFT
"
FORK
SERVO VALVE
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Troubleshooting
