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GEAR BOX
TABLE OF CONTENTS
4.2.1
GENERAL INFORMATION.......................................................................................... 1
4.2.1.1
SPECIFICATIONS......................................................................................................................... 1
4.2.1.2
TIGHTENING TORQUES.............................................................................................................. 2
4.2.1.3
SPECIAL TOOLS .......................................................................................................................... 6
4.2.1.4
GENERAL SYMPTOMS DIAGNOSIS ......................................................................................... 10
4.2.2
MAINTENANCE, INSPECTION AND TEST............................................................... 11
4.2.2.1
PRELIMINARY
INSPECTION..................................................................................................... 11
4.2.2.2
REGULAR MAINTENANCE ....................................................................................................... 11
4.2.2.3
ON VEHICLE PROCEDURES .................................................................................................... 12
A.
GEARBOX REMOVAL ................................................................................................................ 12
4.2.3
OVERHAULING......................................................................................................... 14
4.2.3.1
INFORMATION FOR OVERHAULING ....................................................................................... 14
A.
COMPONENT INDENTIFICATION............................................................................................. 14
B.
PRECAUTIONS........................................................................................................................... 17
C.
CONSTRUCTIONAL DETAILS ................................................................................................... 18
4.2.3.2
GEARBOX DISMANTLING
(ON BENCH)
.................................................................................. 21
4.2.3.3
DISMANTLING OF SUB-ASSEMBLIES..................................................................................... 28
A.
MAIN SHAFT............................................................................................................................... 28
B.
DRIVE SHAFT............................................................................................................................. 39
C.
REVERSE IDLER SHAFT ........................................................................................................... 40
D.
COUNTER SHAFT ...................................................................................................................... 42
E.
FRONT COVER .......................................................................................................................... 45
F.
TOP COVER ............................................................................................................................... 46
G.
REAR COVER (4X2) ................................................................................................................... 47
H.
ADAPTOR (4X4) ......................................................................................................................... 49
I.
SHIFTER SHAFTS & FORKS ..................................................................................................... 50