pronovost P-920, Operator'S & Parts Manual, Page: 15 / 44

- 15 -
TROUBLESHOOTING
- Follow lubrication
recommendations.
- Replace defective U-joints.
- Make sure the snowblower inlet
face is perpendicular to the
ground and if possible readjust
3-point hitch in order to position
the snowblower further away
from tractor.
- Avoid raising snowblower while
in operation.
- Readjust 3-point hitch in order
to position the snowblower
closer to the tractor.
- Follow lubrication
recommendations.
- Replace defective telescopic
members.
- Clean and grease.
- Readjust 3-point hitch in order
to position the snowblower
further away from tractor.
- Follow lubrication instructions.
- Adjust chain to prevent
interference between guard &
equipment.
- Replace worn or damaged
bearing rings.
- Eliminate any interference
between tubes and equipment or
tractor.
- Replace damaged tubes.
P.T.O. SHAFT
POSSIBLE CAUSE PROBLEM CORRECTION
- Insufficient lubrication.
- Excessive working angle.
- Too much sliding under load.
- Tube overlap too-short: minimum
recommended is 6".
- Insufficient lubrication.
- Contaminants (sand, etc.).
- Pin or orifice contaminated by
sand, ice, etc.
- Telescoping members too long,
exerting pressure on locking
device.
- Lack of lubrication.
- Wrong installation of guard
chain.
- Part of the guard in contact with
the equipment.
- Tubes in contact with the
equipment.
- Premature wear of U-joints and/
or bluish color of cross journals.
- Gripping or premature wear of
telescoping members.
- Damaged or jammed locking pin
or bolt.
- Premature wear of guard tube
bearing ring.
- Cut or deformed safety guard
tubes.
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