TIGOR

STEERING TABLE OF CONTENTS 1. GENERAL INFORMATION..................................................................................................................... 1 1.1. SPECIFICATIONS ................................................................................................................................. 1 1.2. SYSTEM LAYOUT................................................................................................................................. 1 1.3. GENERAL DISCRIPTION...................................................................................................................... 2 1.4. TIGHTENING TORQUES ...................................................................................................................... 3 1.5. SPECIAL TOOLS................................................................................................................................... 5 2. MAINTENANCE, INSPECTION AND TEST ........................................................................................... 6 2.1. PRELIMINARY INSPECTION................................................................................................................ 6 2.2. REGULAR MAINTENANCE .................................................................................................................. 7 2.3. ON VEHICLE REPAIRS ........................................................................................................................ 8 2.3.1. STEERING WHEEL REMOVAL ................................................................................................... 8 2.3.2. STEERING COLUMN REMOVAL .............................................................................................. 10 2.3.3. INTERMEDIATE SHAFT REMOVAL ......................................................................................... 12 2.3.4. ECU REMOVAL.......................................................................................................................... 12 2.3.5. MOTOR REMOVAL.................................................................................................................... 13 2.3.6. RACK & PINION ASSEMBLY REMOVAL.................................................................................. 14 3. OVERHAULING .................................................................................................................................... 16 3.1. OVERHAULING OF STEERING RACK & PINION ASSEMBLY......................................................... 16 3.2. PRECAUTIONS ................................................................................................................................... 17 3.3. DISMANTLING, INSPECTION & ASSEMBLY .................................................................................... 17 3.3.1. DISASSEMBLY OF RACK & PINOIN ........................................................................................ 17 3.3.2. INSPECTION OF DISMANTLED PARTS .................................................................................. 18 3.3.3. ASSEMBLY OF RACK & PINOIN .............................................................................................. 18 3.3.4. OBJ ON VEHICLE REMOVAL ................................................................................................... 19 3.3.5. DO'S & DON’T'S ......................................................................................................................... 19 3.3.6. WHEEL ALIGNMENT ................................................................................................................. 23 4. TROUBLESHOOTING AND DIAGNOSIS ............................................................................................ 25 5. STEERING ANGLE CALIBRATION PROCESS .................................................................................. 29 6. EPAS ECU REPLACEMENT AND SOFTWARE UPDATE PROCEDURE IN FIELD ......................... 36 7. CIRCUIT SCHEMATICS OF MANDO EPAS........................................................................................ 40