John Deere SB1280 Snow Blower User Manual


 
MAINTENANCE
OM 0391SB1274-A
31
Note: Shield bearings must be greased every 8 working hours.
AVOIDABLE DAMAGES POSSIBLE CAUSES CORRECTIVE ACTIONS
SHIELD
Excessive wear of shield
bearings.
Insufficient lubrication.
Incorrect chain mounting.
Shield interfering with
implement.
Follow lubrication instructions.
Mount chain to allow
maximum angularity.
Avoid contact of the shields
with fixed parts of the machine
or tractor.
Replace shield bearings.
Chain moving or failure.
Shield interfering with
implement.
Incorrect chain mounting.
Avoid contact of the shields
with fixed parts of the machine
or tractor.
Mount chain to allow
maximum angularity.
Replace defective parts.
Shield cone damaged.
Shield cone in contact with
components on the tractor
and/or implement.
Excessive angularity.
Eliminate interference
between Shield cones and any
part on the tractor and/or
implement.
Avoid excessive angle during
cornering or when lifting or
lowering the implement.
Replace damaged Shield
cones.
Shield tubes damaged
(deformed and split at one
side).
Shields in contact with
components on the tractor
and/or implement.
Shield tubes overlap too
short or no overlap at all
with extended driveline.
Eliminate interference
between Shield cones and
any part on the tractor and/or
implement.
Replace damaged tubes.
Adjust Shield tubes length
with longer tubes.