
PART TIME TRANSFER CASE &
LOCKING HUB SYSTEM
3240 / 3410
TABLE OF CONTENTS
GENERAL ................................................. 2
1. Overview .............................................................. 2
PART TIME TRANSFER CASE ............... 3
1. Structure ............................................................. 3
2. System layout and functions .............................. 5
3. Locking hub system ........................................... 6
4. Transfer case .................................................... 15
POWER FLOW ....................................... 20
1. Power flow ......................................................... 20
2. 2H mode (2WD) ................................................ 21
3. 4H mode (4WD - high speed) ........................... 22
4. 4L mode (4WD - low speed) ............................. 23
TROUBLE SHOOTING .......................... 24
1. General diagnosis ............................................. 24
MAINTENANCE AND REPAIR .............. 25
1. Oil level check and change .............................. 25
REMOVAL AND INSTALLATION ........... 26
1. Components location ........................................ 26
2. Removal and installation of IWE (Integrated
Wheel End) ....................................................... 34
SPECIAL TOOLS AND EQUIPMENT .... 41
TCCU (TRANSFER CASE CONTROL
UNIT) ....................................................... 42
1. Major changes in TCCU .................................... 42
SYSTEM OPERATION ........................... 44
1. TCCU (Transfer Case Control Unit) .................. 44
2. Trouble diagnosis test ...................................... 47
3. Self-diagnosis test ............................................ 48
4. Diagnostic trouble code .................................... 49
Summary of Contents for KYRON 2006
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