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Owner Service 21
MAN0884 (08/15/2011)
TROUBLE SHOOTING
PROBLEM PROBLEM CAUSES SUGGESTED SOLUTION
PTO Shaft shear bolt continues
to shear
PTO shaft at too great an angle. Do not exceed a 15 degree
angle at PTO shaft.
PTO shear bolt is too soft. Use a grade 5 shear bolt. (GKN)
Tilt on the snowblower is too
great causing an excessive
knuckle angle.
Reduce tilt on snowblower by
adjusting top link or upper 3-
point arm.
Snowblower augers continue to
plug
Tractor ground speed is too fast. Reduce ground speed to allow
augers to clear better.
Insufficient fan speed. Maintain a PTO speed of 540 or
1000 RPM depending on model
rating.
Snow does not discharge
properly
Insufficient fan speed. Maintain a PTO speed of 540 or
1000 RPM depending on model
rating.
Augers are overloaded with
snow.
Reduce ground speed or raise
snowblower.
Snow is wet and sticky. Reduce ground speed to allow
for better aeration of snow.
Snowblower tends to dig or float
on snow
Tilt on snowblower not adjusted
properly.
Skid Shoes not adjusted prop-
erly.
Adjust upper link on 3-point to
level the blower.
Adjust skid shoes to be even
with or below cutting edge.
Chute will not turn Insufficient lubrication.
Insufficient oil flow.
Broken rotator chain.
Lubricate chute base and rotator
ring.
Check oil flow from tractor.
Repair/Replace chain or
sprocket.
Auger fails to turn Auger drive shear bolt has
sheared.
Replace auger drive shear bolt.