MAINTENANCE
OM 0467SB-A [25]
Gearbox & Reduction Box
When servicing the gearbox, the tightness of
the casing must be restored. To do so, apply a
layer of silicone to the casing before closing it.
Allow the silicone to cure for at least 24 hours
before filling it with oil.
Shearbolts (Figure 15)
1. Always use a special grade 5 shear bolt,
(656053) on fan (item 1) and two special
grade 5 grooved shear bolts (656295) on
the auger sections (item 2) as shown on
decal 657346 (item 3 in figure).
2. Check shear bolts at frequent intervals for
proper tightness to be sure the snowblower
is in safe working condition. Torque must
be at 9 lbs-ft (12 N-M).
Figure 15
657346
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