pronovost P-982TRC-150 Operator And Parts Manual page 18

TROUBLESHOOTING (cont'd)
PROBLEM
- The snow is not being thrown as
far as usual.
- Frequent plugging of discharge
chute.
- The impeller will not turn.
- The auger will not turn.
- The rotating drum will not turn.
8
- Rotating drum will not hold it's
position when blowing via the
spout.
- The chute will not turn.
SNOWBLOWER
POSSIBLE CAUSE
- Tractor RPM too low.
- Gap too wide between impeller
blade tip and drum outlet wall.
- Insuffucient tractor HP.
- Tractor RPM too low.
- Tractor RPM reduced too early
with snow still in the
Snowblower.
- Slippage of PTO clutch
mechanism.
- Wet snow condition.
- Shear bolt broken on drive shaft.
- Shear bolt broken on drive shaft.
- Shear bolt broken on auger drive
shaft.
- Broken drive chain.
- Ice accumulation.
- Wrong hydraulic connections.
- Cushion valve setting too low.
- Tension of the spring in the drum
locking mechanism insufficient.
- Ice accumulation.
- Wrong hydraulic connections.
- 18 -
CORRECTION
- Raise P.T.O. speed to a minimum
of 540 RPM.
- Adjust impeller blades closer to
drum outlet (1/8" to 3/16").
- Reduce travel speed.
- Raise P.T.O. speed to a minimum
of 540 RPM.
- Make sure the Snowblower is
completely empty before
reducing RPM, especially on
tractors with foot controlled
RPM.
- Repare clutch.
- Reduce travel speed.
- Replace shear bolt.
- Replace shear bolt.
- Replace shear bolt.
- Fix or replace chain.
- Remove ice.
- Check hydraulic connections.
- Reset cushion valve up to 1800
psi (max.)
- Increase tension of spring by
adding shim(s).
- Remove ice.
- Check hydraulic connections.