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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