pronovost P-860IV, Руководство оператора и каталог запасных частей

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- 17 -
TROUBLESHOOTING (cont'd)
SNOWBLOWER
- 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.
- Remove the access door.
- 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.
- 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 drum
locking mechanism insufficient
- Ice accumulation.
- Wrong hydraulic connections.
- 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.
- The rotating drum will not hold
it's position when blowing via the
spout
- The chute will not turn.
POSSIBLE CAUSE PROBLEM CORRECTION