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SECONDARY TRANSMISSION SYSTEM 9 - 6
Removal of cog belt
To gain access to the entire secondary transmission system,
you must first completely remove the cab and belly pan. See
Chapter 1 – General Instructions for details.
Loosen the bolt that holds the tensioner sprocket in
o
place. (See top picture at the right)
Remove the tension on the cog belt system by
o
unscrewing the tensioning bolt shown in the top picture
at the right. Continue until the belt is no longer tight
against
the
teeth
ALTERNATIVELY, if you wish to leave the belt tension
as-is, you can simply remove the bolt that runs through
the center of the tensioner sprocket and leave the
tensioning bolt as-is.
Remove the tensioner sprocket completely. (# 2 on
o
secondary transmission system)
Remove the two setscrews that hold the taper lock and
o
the 28-tooth upper drive sprocket in place. (Position 1)
Using a punch, hit the taper lock 2-3 times in the shaded
zone shown at right (Position 5) to loosen the grip
between the taper lock and the sprocket.
NOTICE:
If either of the installation holes (shown as "Position 1" in
the picture in the sidebar at the right) becomes
damaged, the taper lock can be rotated 45
sprocket bore and can then use the installation holes
shown in "Position 3".
Insert and thread in one of these two setscrews into the
o
extraction hole (Position 2), at a maximum torque of 14
N-m (125 lbf-in). The sprocket and taper lock assembly
should now be free to slide off the shaft.
At this point, begin to slide the belt off of the lower 56
o
tooth drive sprocket and simultaneously slide the entire
28 tooth driven sprocket assembly and belt off the
jackshaft as shown in the picture at the right.
of
the
tensioner
sprocket.
o
CCW in the
Tensionning screw
•
. .
.
.
1
. .
.
2
4
Tentioner sprocket
screw
3
5
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