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SECONDARY TRANSMISSION SYSTEM 9 - 4
Installation of Cog Belt
Installation of a new cog belt is essentially the same as the
steps outlined in the removal, but in reverse order. One must
pay special attention to the re-installation of the taper lock
system.
The instructions below pertain to any taper lock
installation, but in this case it refers to the case at the 28-tooth
drive sprocket specifically:
1. Thoroughly clean the jackshaft and sprocket bore.
2. Align the 28-tooth sprocket and taper lock flush with
the end of the jackshaft.
3. Applying Loctite 243, install the two installation set
screws into position 1.
4. Torque the two set screws to 14 N-m (125 lbf-in)
5. Tap the taper-lock face several times in the shaded
region (position 5) with a steel punch and re-
tighten the set screws.
6. Tap again and re-torque to 14 N-m (125 lbf-in).
Loctite 243 must be used at both taper lock installation
setscrews to prevent them from loosening under use.
Failure to do so could result in personal injury.
Lightly tighten the tensioner sprocket bolt (Ref. No. 9 in the
exploded view of the secondary transmission system) and then
proceed to re-apply tension to the system by tightening the
tensioning bolt.
l NOTE:
If either of the installation holes (shown as "Position 1" in the
picture in the sidebar at the right) should become damaged, the
taper lock can be rotated 45
then use the installation holes shown as "Position 3".
When tensioned properly, the secondary transmission system
must have a deflection of approximately 7.3 mm (0.288") under
a load of 6.44 kg (14.2 lbs) applied midspan between the
uppermost (28T) and lowest (56T) cog sprockets. This tension
must be verified using special tensioning tool P/N 43990092.
The picture at the right demonstrates how to use a straightedge
as a reference when verifying this deflection and also where the
measurement should be taken.
Once the tension is correct, re-tighten the tensioner sprocket
bolt to a torque of 48 N-m (425 lbf-in).
Failure to provide or verify the correct tension in the
secondary transmission system could lead to premature
belt and/or component failure.
u u WARNING
o
CCW in the sprocket bore and can
t t CAUTION
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