Service Repair Manual
Models
140G Motor Grader
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Product: MOTOR GRADER
Model: 140G MOTOR GRADER 81V
Configuration: 140G MOTOR GRADER 81V00382-01030 (MACHINE) POWERED BY 3306 ENGINE
Disassembly and Assembly
12G, 130G & 140G MOTOR GRADER POWER TRAIN
Media Number -SENR7186-01
Publication Date -01/11/1989
Date Updated -24/02/2006
SENR71860006
Drive Sprockets
SMCS - 4072-11; 4072-12
Remove Drive Sprockets
start by:
a) remove tandem housings
1. Remove nut (1) with tool (A).
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2. Remove sprockets (2) and (3). Weight of one sprocket is 32 lb. (15 kg).
3. Do Steps 1 through 2 for the other drive sprockets.
Install Drive Sprockets
1. Put sprocket (1) in position on the shaft. Install sprocket (1) with the hub of the sprocket away
from the final drives.
2. Put sprocket (2) in position on the shaft. Install sprocket (2) with the hub toward the hub on
sprocket (1).
3. Put the nut that holds the sprockets on the shaft in position on the shaft. Install the axle in the
differential and final drive.
NOTICE
The following procedure must be used to put the correct amount of
preload on the bearings for the final drives:
A. Tighten the nut to a torque of 150 lb. ft. (20.7 mkg) with tool (A).
B. Turn the sprockets to put the bearings in their seats.
C. Hit the hub of the sprocket with a large punch and a hammer.
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D. Do Steps A, B, and C until the nut does not turn when it is tightened.
E. Loosen the nut.
F. Tighten the nut to a torque of 100 lb. ft. (13.8 mkg).
G. If the nut is in a locking position, install the cover and the bolts that hold it.
H. If the nut is not in a locking position, tighten the nut to the next nearest locking position. Install
the cover and the bolts.
4. Do