Use and Care Manual

19
30SB, 36SB, 45SB
Rev Nov2014
Snow BEAST
Avoiding Impeller Freeze-Up
Impeller freeze-up occurs when snow and ice remain in the impeller housing aer the job is nished.
The remaining snow and ice melts parally and only temporarily due to residual heat in the snow
blower. The remaining mixture re-freezes and essenally “welds” the impeller to the impeller housing
and prevents rotaon of the impeller.
Snow blowers are especially suscepble to freeze-up immediately aer use when the machine is
stored outside or in an un-heated garage where the temperature is below freezing.
Residual snow in the discharge chute and impeller
housing melts in the heat of the engine and fricon
from other rotang components. The melng
residual drips and ows to the boom of the impeller
housing which is the furthest point from a heat
source. During very cold condions, the residual
cannot escape through the drain hole before it
freezes in the impeller housing and seizes the
impeller. The remaining snow and ice pools in the
boom aer the drain hole, and connues to build up
ice around the components. The drain hole is located
at the lowest point on the back of the impeller
 Run the auger/impeller for a few minutes aer snow blower
use to clear any residual snow.
 Aer shung o the snow blower, dust o any remaining
snow.
 Manually spin the impeller so that none of the blades point
straight down.
 Place a heat-source (an incandescent light bulb works well)
in the housing (see photo right).
 Tarp the snow blower to retain the heat and to keep
addional snow o the machine. Use cauon when covering
a hot snow blower. The muer can melt covers or catch
re. Never cover a snow blower immediately aer
shutdown.
If the impeller is frozen up when the impeller / collector handle is engaged, the belts will bog down the
engine and the belts will begin to burn on the engine pulley since they cannot move, or a shear pin could
fail.
To avoid this, we recommend manually spinning the impeller before starng the snow blower to ensure it
moves freely. If already frozen, a hairdryer will usually clear the ice quickly.
To avoid impeller freeze-up when storing in cold condions, we recommend: