Service Repair Manual
Models
120M Motor Grader
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Product: MOTOR GRADER
Model: 120M MOTOR GRADER B9W
Configuration: 120M Motor Grader - All Wheel Drive B9W00001-UP (MACHINE) POWERED BY C6.6 Engine
Disassembly and Assembly
12M and 120M Motor Graders Power Train
Media Number -KENR6419-08
Publication Date -01/05/2017
Date Updated -15/05/2017
i07285127
Rear Axle, Differential and Final Drive - Assemble
SMCS - 3258-016; 3278-016; 3282-016-RE; 4050-016; 4068-016
Assembly Procedure
Table 1
Required Tools
Tool
Part
Number
Part Description
Qty
A
439-3940
Link Bracket
4
B
140-7742
Sleeve
2
C
386-6031
Lever Puller Hoist
1
E
143-3939
Link Bracket
2
G
292-4949
Socket Wrench As
1
H
154-6183
Forcing Bolt
2
K
4C-4030
Thread Lock Compound
1
L
1U-8846
Gasket Sealant
1
M
6V-2012
Depth Micrometer
1
367-9109
Caliper(1)
1
N
8T-5096
Dial Indicator Gp
1
301-3405
Gauge
1
P
8T-4140
Bolt
4
R
7M-7456
Bearing Mount Compound
1
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120M Motor Grader - All Wheel Drive B9W00001-UP (MACHINE) POWERED BY ...
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S
-
Cat Advance 3Moly Grease or Dow Corning Molykote BR2 -
Plus
1
T
8T-5096
Dial Indicator Gp
1
(1) For use with three bolt retainers
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
Note: Inspect the O-ring seals, gaskets, and lip seals. Replace O-ring seals, gaskets, and lip seals
that are worn or damaged.
Note: Lubricate O-ring seals and lip seals with the lubricant that is being sealed.
Illustration 1
g03831520
1. Install seals (94) onto piston (90).
Illustration 2
g03831488
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120M Motor Grader - All Wheel Drive B9W00001-UP (MACHINE) POWERED BY ...
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Note: Grease is used to hold thrust race (93) and thrust bearing (92) in place during
assembly.
2. Apply a liberal amount of grease to thrust race (