Kia Carnival (2009+). Instruction — part 305

Objective

* Energy (hydraulic pressure) storage
* Impact and pulsation damping when solenoid valves operating
* Operation as spring element
* Smooth shifting by preventing sudden operation of clutches and brakes

TRANSFER DRIVE GEAR

With the transfer drive gear, increased tooth height and a higher contact ratio have reduced gear noise.
Also, the bearing that supports the drive gear is a preloaded type that eliminates rattle, and the rigidity of the gear
mounting has been increased by bolting the bearing directly onto the case.

OUTPUT SHAFT/TRANSFER DRIVEN GEAR

As shown in the illustration below, the transfer driven gear is press-fitted onto the output shaft, and the output shaft is
secured by a locking nut and supported by bearings.
The locking nut has a left-handed thread, and a hexagonal hole in the other end of the shaft enables the shaft to be
held in position for locking nut removal.

MANUAL CONTROL SYSTEM

MANUAL CONTROL LEVER

The manual control lever is fitted to the top of the valve body and is linked to the parking roller rod and manual control
valve pin.
A detent mechanism is provided to improve the gear shift feeling during manual selection.

PARKING MECHANISM

When the manual control lever is moved to the parking position, the parking roller rod moves along the parking roller
support and pushes up the parking sprag.
As a result, the parking sprag meshes with the transfer driven gear (parking gear), thereby locking the output shaft. To
minimize the operating force required, a roller is fitted to the end of the rod.

POWER TRAIN

P POSITION

Hydraulic pressure is applied to the LR brake and the RED brake, so power is not transmitted from the input shaft to
the UD clutch or OD clutch, and the output shaft is locked by the park brake pawl interlocking the park gear.

N POSITION

Hydraulic pressure is applied to the LR brake(A) and the RED brake, so power is not transmitted from the input shaft
to the UD clutch or OD clutch.

1st GEAR POWER FLOW

Hydraulic pressure is applied to the UD clutch(B) the LR brake(A) and the one way clutch(OWC), then the UD clutch
transmits driving force from the input shaft to the UD sun gear, and the LR brake locks the LR annulus gear to the
case.The UD sun gear of the planetary gear drives the output pinion gear, and the LR brake locks the annulus gear,
and the output pinion drives the output carriers, and the output carrier drives the transfer drive gear, and the transfer
drive gear drives the transfer driven gear of the output shaft, and power is transmitted to the differential gear through
the differential drive gear.

2nd GEAR POWER FLOW

Hydraulic pressure is applied to the UD clutch(A) the 2nd brake(B) and the one way clutch(OWC), then the UD clutch
transmits driving force from the input shaft to the UD sun gear, and the 2nd brake locks the reverse sun gear to the
case.The UD sun gear of the planetary gear drives the output pinion gear and the LR annulus gear, and the LR
annulus gear drives the OD planetary carriers, and OD planetary carriers drives OD pinion gear, and the OD pinion
gear drives the output carriers, and the output carrier drives the transfer drive gear, and the transfer drive gear drives
the transfer driven gear of the output shaft, and power is transmitted to the differential gear through the differential
drive gear.

3rd GEAR POWER FLOW

Hydraulic pressure is applied to the UD clutch(A) and the OD clutch(B), then the UD clutch transmits driving force from
the input shaft to the UD sun gear, and the OD clutch transmits driving force from the input shaft to the overdrive
planetary carrier and low&reverse annulus gear.The UD sun gear of the planetary gear drives the output pinion gear
and the LR annulus gear, and the LR annulus gear drives the OD pinion gear through the OD planetary carrier, and
the OD pinion gear drives the reverse sun gear and the output carrier.The OD clutch drives the OD carrier, and the
OD carrier drives the OD pinion gear, and the OD pinion gear drives the reverse sun gear and the output carrier, and
the output carrier drives the transfer drive gear, and the transfer drive gear drives the transfer driven gear of the
output shaft, and power is transmitted to the differential gear through the differential drive gear.

4th GEAR POWER FLOW

Hydraulic pressure is applied to the OD clutch(A) and the 2nd brake(B), then the OD clutch transmits driving force
from the input shaft to the OD planetary carrier and LR annulus gear, and the 2nd brake locks the reverse sun gear to
the case.The OD clutch drives the OD carrier, and the OD carrier drives the OD pinion gear and the LR annulus gear,
and the OD pinion gear drives the output carrier, and the output carrier drives the transfer drive gear, and the transfer
drive gear drives the transfer driven gear of the output shaft, and power is transmitted to the differential gear through
the differential drive gear.