Front Output Shaft Seal Removal; Transfer Case - Nv233; Installation; Mode Sensor - Dodge Dakota Sport 2001 Service Manual

21 - 596 TRANSFER CASE - NV244
FRONT OUTPUT SHAFT SEAL
REMOVAL
(1) Raise vehicle.
(2) Remove front propeller shaft. (Refer to 3 - DIF-
FERENTIAL & DRIVELINE/PROPELLER SHAFT/
PROPELLER SHAFT - REMOVAL)
(3) Remove front output shaft companion flange.
(4) Remove seal from front case with suitable pry
tool (Fig. 83).
Fig. 83 Remove Front Output Shaft Seal - Typical
1 - OUTPUT SHAFT SEAL
2 - PRY TOOL

INSTALLATION

(1) Install new front output seal in front case with
Installer Tool 8143-A as follows:
(a) Place new seal on tool. Garter spring on seal
goes toward interior of case.
(b) Start seal in bore with light taps from ham-
mer (Fig. 84). Once seal is started, continue tap-
ping seal into bore until installer tool seats against
case.
(2) Install the front output shaft companion flange.
Tighten the flange nut to 122-176 N·m (90-130
ft.lbs.).
(3) Install the front propeller shaft. (Refer to 3 -
DIFFERENTIAL &
SHAFT/PROPELLER SHAFT - INSTALLATION)

MODE SENSOR

DESCRIPTION

The transfer case mode sensor (Fig. 85) is an elec-
tronic device whose output can be interpreted to indi-
cate the shift motor shaft's rotary position. The
sensor consists of a magnetic ring and four Hall
Effect Transistors to create a 4 channel digital device
DRIVELINE/PROPELLER
Fig. 84 Front Output Shaft Seal Installation - Typical
1 - INSTALLER 8143-A
2 - TRANSFER CASE
(non-contacting) whose output converts the motor
shaft position into a coded signal. The TCCM must
supply 5VDC (+/- 0.5v) to the sensor and monitor the
shift motor position. The four channels are denoted
A, B, C, and D. The sensor is mechanically linked to
the shaft of the cam which causes the transfer case
shifting. The mode sensor draws less than 53 mA.
Fig. 85 Mode Sensor
1 - TRANSFER CASE MODE SENSOR
AN