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
fi
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
fl
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
ff
the
snow
blower,
dust
o
ff
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
ff
the
machine.
Use
cau on
when
covering
a
hot
snow
blower.
The
mu
ffl
er
can
melt
covers
or
catch
fi
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: