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Bolens 225 Guide

Batons.
Snow
Thrower
Safety
and
Operation
Instructions
Models
225
225E
300
300E
350
350E
500
FORM
553512-5
(8/85)
SUPERSEDES
553512-4
INTRODUCTION
Thank
you
for
purchasing
this
piece
of
Bolens
equipment.
We
feel
you
now
own
one
of
the
finest
pieces
of
equipment
money
can
buy.
This
is
a
safety,
operation
and
general
maintenance
manual
which
does
not
at¬
tempt
to
cover
major
repairs.
Bolens
equipment
has
been
carefully
designed,
engineered
and
manufactured
to
give
good
performance
if
properly
operated
and
maintained.
Review
this
manual
to
familiarize
yourself
with
the
unit,
its
features
and
its
operation.
This
equipment
is
manufactured
by
Bolens
Corporation,
215
South
Park
Street,
Port
Washington,
Wisconsin
53074.
(Phone:
414-284-5521).
If
you
should
have
any
questions
or
encounter
any
problems
which
you
feel
only
the
factory
can
solve,
write
to
the
above
address
or
call
our
Service
Department.
Your
Warranty
Statement
is
also
included
(on
back
cover)
with
this
manual.
Please
read
it
carefully.
Also,
be
sure
to
complete
and
return
the
included
postpaid
owner
registration
card.
The
purpose
of
this
card
is
to
register
each
unit
and
owner
at
the
factory
for
safety
purposes.
CONTACT
YOUR
DEALER
FOR
ANY
REPLACEMENT
PARTS
OR
SERVICE
NEEDED.
DO
NOT
RETURN
PARTS
DIRECTLY
TO
THE
FACTORY.
THE
FACTORY
REQUIRES
PRIOR
APPROVAL
ON
RETURNS,
AND
APPROVALS
ARE
ISSUED
ONLY
TO
BOLENS
DEALERS
OR
DISTRIBU¬
TORS.
Bolens
Corporation
reserves
the
right
to
make
changes
in
specifications
shown
herein,
add
improvements,
or
discontinue
the
manufactured
product
at
any
time
without
notice
or
obligation.
The
illustrations
shown
throughout
this
manual
may
not
look
exactly
the
same
as
your
snow
thrower.
Production
line
changes
as
well
as
differences
in
models
may
alter
their
appearance.
Know
your
snow
thrower
before
you
operate
it.
Carefully
review
this
manual
and
become
thoroughly
familiar
with
the
operating
procedures
and
safety
pre¬
cautions.
TABLE
OF
CONTENTS
Safety
Precautions
.
.
Identification
Numbers
Specifications.
Assembly.
Controls.
3
Before
Operation.
.
.
.
4
Operation.
5
Care
and
Maintenance
5
Storage
.
6
2
CD
00
GENERAL
SAFETY
PRECAUTIONS
A
This
symbol
is
being
used
to
attract
attention
to
the
safety
precautions
that
should
be
obeyed
by
the
operator
to
help
avoid
accidents.
A
CAUTION
PREVENTING
ACCIDENTS
IS
YOUR
RESPONSIBILITY.
BE
SURE
YOU
UNDERSTAND
AND
OBSERVE
THESE
SAFETY
PRECAUTIONS.
NEVER
TAKE
CHANCES.
REMEMBER,
ACCI¬
DENTS
CAN
BE
PREVENTED.
falling,
especially
when
operating
in
reverse.
PREPARATION
1.
Thoroughly
inspect
the
area
where
the
equipment
is
to
be
used
and
remove
all
door
mats,
sleds,
boards,
wires
and
other
foreign
objects.
2.
Do
not
operate
equipment
without
wearing
adequate
winter
outer
garments.
Wear
footwear
which
will
improve
foot¬
ing
on
slippery
surfaces.
3.
Handle
fuel
with
care,
it
is
highly
flammable.
a.
Use
approved
fuel
container.
b.
Never
add
fuel
to
a
running
engine
or
hot
engine.
c.
Fill
fuel
tank
outdoors
with
extreme
care.
Never
fill
fuel
tank
indoors.
d.
Replace
gasoline
cap
securely
and
wipe
up
spilled
fuel.
4.
U
se
a
grounded
three
wire
cord
and
plug-in
for
all
units
with
electric
starting
motors.
walks,
or
roads.
Stay
alert
for
hidden
hazards
or
traffic.
3.
After
striking
a
foreign
object,
stop
the
engine
(motor),
thoroughly
inspect
the
snow
thrower
for
any
damage,
and
repair
the
damage
before
restarting
and
operating
the
snow
thrower.
4.
If
the
unit
should
start
to
vibrate
abnormally,
stop
the
engine
(motor)
and
check
immediately
for
the
cause.
Vibra¬
tion
is
generally
a
warning
of
trouble.
5.
Stop
engine
(motor)
whenever
you
leave
the
operating
position,
before
unclogging
the
collector/impeller
housing
or
discharge
guide,
and
when
making
any
repairs,
adjustments
or
inspections.
6.
Take
all
possible
precautions
when
leaving
the
vehicle
unattended.
Stop
the
engine
and
remove
the
key.
7.
When
cleaning,
repairing
or
inspect¬
ing
make
certain
collector/impeller,
and
all
moving
parts
have
stopped.
Disconnect
cord
on
electric
motors.
8.
Do
not
run
engine
indoors,
except
when
starting
engine
for
transporting
snow
thrower
in
or
out
of
building.
Open
outside
doors,
exhaust
fumes
are
danger¬
ous.
TRAINING
1.
Read
the
operating
and
service
in¬
struction
manual
carefully.
Be
thoroughly
familiar
with
the
controls
and
proper
use
of
the
equipment.
Know
how
to
stop
the
unit
and
disengage
the
controls
quickly.
2.
Never
allow
children
to
operate
equipment.
Never
allow
adults
to
operate
equipment
without
proper
instruction.
3.
Keep
the
area
of
operation
clear
of
all
persons,
especially
small
children
and
pets.
4.
Exercise
caution
to
avoid
slipping
or
5.
Never
attempt
to
make
any
adjust¬
ments
while
engine
or
motor
is
running
(except
where
specifically
recommended
by
manufacturer).
6.
Let
engine
and
machine
adjust
to
outdoor
temperatures
before
starting
to
clear
snow.
OPERATION
1.
Do
not
put
hands
or
feet
near
rotating
parts.
Keep
clear
of
discharge
opening
and
collector
at
all
times.
2.
Exercise
extreme
caution
when
operating
on
or
crossing
gravel
drives.
9.
E
xercise
extreme
caution
when
changing
directions
on
slopes.
Do
not
attempt
to
clear
steep
slopes.
1
0.
Never
operate
snow
thrower
without
guards,
plates,
or
other
safety
protective
devices
in
place.
11.
Never
operate
snow
thrower
near
glass
enclosures,
automobiles,
window
wells,
drop-offs,
etc.,
without
proper
adjustment
of
snow
discharge
angle.
Keep
children
and
pets
away.
12.
The
exhaust
muffler
gives
off
heat.
Avoid
contact
with
any
surface
which
may
be
hot.
3
GENERAL
SAFETY
PRECAUTIONS
(continued)
13.
Do
not
overload
machine
capacity
by
attempting
to
clear
snow
at
too
fast
a
rate.
14.
Never
operate
machine
at
high
trans¬
port
speeds
on
slippery
surfaces.
15.
Never
direct
discharge
at
bystanders
or
allow
anyone
in
front
of
unit.
17.
Never
operate
the
snow
thrower
without
good
visibility
or
light.
Always
be
sure
of
your
footing
and
keep
a
firm
hold
on
the
handles
and
walk,
never
run.
MAINTENANCE
AND
STORAGE
1.
Check
engine
mounting
bolts,
etc.
at
frequent
intervals
for
proper
tightness
to
be
sure
equipment
is
in
safe
working
condition.
3.
Never
store
machine
with
fuel
in
the
fuel
tank
inside
a
building
where
open
flame
or
spark
are
present.
Allow
engine
to
cool
before
storing
in
any
enclosure.
4.
Always
refer
to
owner's
guide
instructions
for
important
details
if
snow
thrower
is
to
be
stored
for
an
extended
period.
5.
Run
machine
a
few
minutes
after
throwing
snow
to
prevent
freeze
up
of
collector/impeller.
16.
Use
only
attachments
and
accessories
2.
Check
scraper
bar
mounting
bolts
at
approved
by
manufacturer
of
snow
frequent
intervals
for
proper
tightness
to
thrower.
insure
smooth
operation.
IDENTIFICATION
NUMBERS
For
prompt
service
when
repairs
or
adjust¬
ments
are
required,
your
AUTHORIZED
BOLENS
DEALER
must
have
identifi¬
cation
numbers
listed.
Fill
in
the
spaces
now
for
quick
reference.
The
AUTHORIZED
BOLENS
DEALER
has
a
parts
list
for
your
snow
thrower.
He
can
identify
and
supply
any
parts
you
require.
Contact
the
engine
manufacturer's
authorized
dealer
when
engine
parts
are
needed.
Snow
Thrower:
Model
Number.
Serial
Number_
Engine:
Model
Number
Serial
Number-
Spec.
Number_
Date
of
Purchase:
4
SPECIFICATIONS
Model
225
225E
|
300
300E
350
350E
500
500E
520
Single-Stage
Single-Stage
Single-Stage
Single-Stage
Single-Stage
Engine
Tecumseh
2.25
HP/1.7
kW
2
cycle
Tecumseh
3.0
HP/2.2
kW
2
cycle
Tecumseh
3.5
HP/2.6
kW
4
cycle
Tecumseh
5
HP/3.7
kW
4
cycle
Tecumseh
5
HP/3.7
kW
4
cycle
Fuel
Cap
2
qt./1.9
L
2
qt./1.9
L
2
qt./l
.9
L
2
qt./l
.9
L
2
qt./l.9
L
Cutting
Width
20"/51
cm
20"/51
cm
20"/51
cm
24'V61
cm
20"/51
cm
Auger
Triple-Paddle
Impeller
Hi
Capacity
Poly
V
Belt
Wheel
Size
1.5
x
6"
Rubber
(3.8
x
15.2
cm)
1.5
x
6"
Rubber
(3.8
x
15.2
cm)
1.5
x
6"
Rubber
(3.8
x
15.2
cm)
1.5
x
7
"
Rubber
(3.8
x
17.8
cm)
1.5
x
6"
Rubber
(3.8
x
15.2
cm)
Approx.
Weight
42
lbs./19.0
Kg
42
lbs./19.0
Kg
50
lbs./22.7
Kg
52
lbs./23.6
Kg
50
lbs./22.7
Kg
Start
MANUAL
YES
MANUAL
YES
MANUAL
YES
MANUAL
YES
MANUAL
Auger
Clutch
Kit
Available
Kit
Available
Yes
Yes
Yes
Snow
Discharge
3
Way
Directional
Fold
Down
Handles
Yes
Yes
Yes
Yes
Yes
*
MANUAL
START
UNITS
MAY
ACCEPT
AN
ELECTRIC
START
KIT,
CONTACT
YOUR
AUTHORIZED
ENGINE
DEALER.
ASSEMBLY
Remove
Snow
Thrower
from
carton
and
assemble
as
described.
1.
HANDLE
INSTALLATION
The
snow
thrower
was
shipped
with
the
handle
in
the
folded
down
position.
To
position
handle
for
operation:
a.
Remove
hand
knobs
(A),
Figure
4.
b.
Lift
handle
up
and
position
in
either
of
two
operating
positions:
HIGH
position
(B)
or
LOW
position
(C).
Pinched
ends
of
upper
handle
(D)
must
fit
snugly
around
lower
handle
(E).
c.
Place
handle
plates
(H)
onto
threaded
studs.
d.
Retighten
hand
knobs.
e.
If
snow
thrower
is
equipped
with
an
auger
clutch
control,
(F)
Figure
5,
the
following
must
be
done
for
proper
clutch
engagement.
With
auger
clutch
handle
down,
pull
cable
up
(to
remove
slack)
until
a
solid
resistance
is
felt.
Select
the
chain
link
closest
to
open
end
of
clutch
lever
hook
(G)
and
assemble.
Release
cable.
This
procedure
should
provide
proper
clutch
engagement.
CONTROLS
VANE
CONTROL
The
vane
control
(A),
Figure
6,
is
used
to
direct
snow
discharge
left,
right
or
straight
ahead.
IGNITION
KEY
The
ignition
key
(B),
Figure
6,
allows
the
starting
and
stopping
of
engine.
CHOKE
CONTROL
The
choke
control
(C),
Figure
6,
aids
in
cold
engine
starting.
RECOIL
STARTER
This
starter
rope
(D),
Figure
6,
allows
the
engine
to
start
(by
pulling)
with
the
key
ON.
PRIMER
BUTTON
The
primer
button
(E),
Figure
6,
permits
the
operator
to
hand
prime
(by
pressing)
the
engine
carburetor.
NOTE:
When
priming
(Models
225
&
225E
only)
be
sure
your
thumb
is
covering
vent
hole.
ELECTRIC
STARTER
BUTTON
(Electric
Start
Models
Only)
This
starter
button
(G),
Figure
6,
is
used
to
start
the
engine
(by
pressing)
with
the
ignition
key
ON.
AUGER
CLUTCH
(Some
Models)
This
control
(F),
Figure
7,
engages
impel¬
ler
when
pulled
up
to
handle
bar
and
dis¬
engages
impeller
when
released.
BEFORE
OPERATION
A
WARNING
MODELS
350,
305E,
500,
500E
&
520
THIS
SNOW
THROWER
WAS
SHIPPED
WITHOUT
LUBRICA¬
TION
IN
THE
CRANKCASE.
FILL
THE
4
CYCLE
ENGINE,
IF
SO
EQUIPPED,
WITH
OIL
AS
OUT¬
LINED
IN
THIS
MANUAL
AS
WELL
AS
THE
ENGINE
MANUAL.
MODELS
225,225E,
300
&
300E
THE
2
CYCLE
ENGINE
HAS
NO
OIL
SUMP
IN
THE
CRANKCASE,
THEREFORE
RELIES
ON
THE
OIL
IN
THE
FUEL
MIXTURE
FOR
LUBRICATION.
6
BEFORE
OPERATION
(continued)
A
CAUTION
DO
NOT
REFUEL
WHILE
ENGINE
IS
RUNNING
OR
HOT.
KEEP
SMOKERS
AND
FLAMES
AWAY
WHEN
REFUEL¬
ING.
MODELS
225,
225E,
300
&
300E
(2
Cycle
Engine)
A
two
cycle
engine
has
no
oil
sump
in
the
crankcase;
therefore
it
relies
on
the
oil
in
the
fuel
mixture
for
lubrication.
A
CAUTION
ALL
2
CYCLE
ENGINES
MUST
HAVE
OIL
MIXED
INTO
THE
FUEL.
Mix
oil
with
fresh
clean
unleaded
auto¬
motive
gasoline.
(Leaded
"regular"
grade
gasoline
is
an
acceptable
substitute.)
See
FUEL
MIX
CHART.
Use
SAE
30
or
40
outboard
or
2-cycle
oil.
DO
NOT
USE
AUTOMOTIVE
OILS.
Disregard
instruc¬
tions
on
oil
containers.
DO
NOT
mix
directly
in
engine
fuel
tank.
Doing
so
could
cause
engine
damage.
Refer
to
engine
owner's
manual.
FOR
THOROUGH
MIXING
OF
OIL
AND
GASOLINE-
Fill
can
to
one
quarter
full,
add
oil
per
chart,
shake
can
vigorously,
fill
remainder
of
can
with
gas
and
reshake
contents.
ONCE
MIXED,
OIL
AND
GASOLINE
WILL
NOT
SEPARATE.
MODELS
350,
350E,
500
500E
&
520
(4
Cycle
Engines)
Fill
tank
with
fresh,
clean
unleaded
automotive
gasoline.
(Leaded
"regular"
grade
gasoline
is
an
acceptable
substi¬
tute).
A
CAUTION
DO
NOT
MIX
OIL
WITH
THE
GASO¬
LINE.
NEVER
USE
PREMIUM
OR
WHITE
GASOLINE.
(4
CYCLE
ENGINES).
THE
USE
OF
GASOHOL
IS
NOT
RECOMMENDED.
2
CYCLE
ENGINES
FUEL
MIX
CHART
Mixture
32:1
(3%
mixture)
U.S.
IMPERIAL
S.l.
(METRIC)
Gas
Oil
To
Be
Added
Gas
Oil
To
Be
Added
Petrol
Oil
To
Be
Added
1
Gal.
4
oz.
1
Gal.
4.5
oz.
4
Liters
.125
L
2
Gal.
8
oz.
2
Gal.
9
oz.
8
Liters
.250
L
5
Gal.
20
oz.
5
Gal.
22
oz.
20
Liters
.625
L
MODELS
350,
350E,
500
500E
&
520
FILL
ENGINE
CRANKCASE
-
4
CYCLE
ENGINES
ONLY
Before
operating,
fill
the
crankcase
to
"FULL"
mark
on
dipstick
(A),
Figure
8,
using
proper
grade
and
amount
of
a
quality
engine
oil.
7
OPERATION
MOTE
When
first
operating
snow
thrower
give
yourself
ample
time
to
acquaint
yourself
with
the
machine.
Practice
using
ALL
controls.
STARTING
THE
ENGINE
(RECOIL
START)
1.
Turn
ignition
switch
to
"ON"
position.
2.
Pull
choke.
3.
Push
primer
button
1
to
4
times
(depending
on
temperature).
In
tempera¬
tures
above
+15°F
(-10°C)
use
one
or
two
primes.
In
temperatures
below
+15°F
(-10°C)
use
three
or
four
primes.
To
prime
engine,
fully
depress
primer
bulb
with
your
thumb
(if
primer
bulb
has
a
vent
hole,
be
sure
thumb
covers
hole
when
priming).
Release
and
allow
bulb
to
return
to
original
position.
An
engine
should
be
primed
if
it
is
new,
cold,
stored,
unused
for
an
extended
period
of
time
or
has
been
run
dry
of
fuel.
4.
Start
engine.
Hot
or
cold
start
—
pull
starter
rope
(see
"STARTING
INSTRUCTIONS"
in
engine
manual).
5.
When
engine
starts,
push
choke
con¬
trol
in
(if
choking
was
necessary).
6.
Pull
up
auger
clutch
control
(if
so
equipped)
to
engage
impeller.
If
adjust¬
ment
is
necessary
refer
to
CARE
AND
MAINTENANCE
section.
STARTING
THE
ENGINE
(ELECTRIC
START)
1.
P
lug
cord
into
starter
switch
con¬
nector
(H),
Figure
6,
and
a
convenient
120
volt
outlet.
2.
Follow
steps
1,2
and
3
from
recoil
start
engine
starting
instructions.
3.
Press
starter
button
(see
"START¬
ING
INSTRUCTIONS"
-
Electric
Start
section
in
engine
manual).
Release
as
soon
as
engine
starts.
A
CAUTION
DO
NOT
CRANK
WITH
ELECTRIC
STARTER
FOR
MORE
THAN
60
SECONDS.
IF
CRANKED
FOR
60
SECONDS
STARTER
SHOULD
NOT
BE
OPERATED
AGAIN
FOR
20
MINUTES
TO
ALLOW
IT
TO
COOL.
4.
After
engine
starts,
push
choke
con¬
trol
in
(if
choking
was
necessary)
and
re¬
move
extension
cord
(from
receptacle
first).
5.
Pull
up
auger
clutch
control
(if
so
equipped)
to
engage
impeller.
If
adjust¬
ment
is
necessary
refer
to
CARE
AND
MAINTENANCE
section.
STOPPING
THE
ENGINE
1.
Turn
ignition
key
to
"OFF"
position.
Remove
key.
2.
Be
sure
all
moving
parts
have
stopped
before
leaving
the
operator's
position.
A
CAUTION
STOP
THE
ENGINE
BEFORE:
•
Adding
fuel.
•
Leaving
snow
thrower
unattended,
if
only
for
a
minute.
•
Clearing
discharge
opening.
•
Making
any
repairs
or
adjustments
to
unit.
OPERATING
TIPS
1.
Before
the
first
snowfall
thoroughly
inspect
area
where
snow
removal
will
take
place.
Remove
all
door
mats,
sleds,
boards,
wires,
etc.
that
might
be
picked
up
and
thrown
by
the
impeller
paddles.
2.
Spray
the
inside
of
impeller
paddle
housing
and
directional
vanes
with
Bolens
silicone
spray
to
help
prevent
snow
build
up.
A
coat
of
paste
wax
is
also
suitable.
3.
All
covers
and
guards
must
be
in
place
and
all
nuts,
screws
and
other
fasteners
tight.
4.
Allow
engine
to
warm
up
approx¬
imately
five
(5)
minutes
before
using.
5.
Removing
snowfall
as
soon
as
possible
produces
the
best
results.
6.
To
obtain
the
greatest
performance
from
snow
thrower,
place
vanes
in
a
vertical
position,
discharge
snow
down¬
wind
and
overlap
each
pass
slightly.
7.
The
type
of
snow
you
are
throwing
will
dictate
to
you
how
to
use
this
machine.
In
light,
fluffy
snow
the
unit
will
propel
itself
if
tilted
forward
slightly
(lifting
up
on
handle
-
as
shown
below)
allowing
the
impeller
paddles
to
contact
the
ground.
In
heavy
wet
snow
the
unit
will
propel
itself
forward
without
tilting.
NOTE:
The
depth
and
weight
of
snow
to
be
cleared
will
control
forward
speed
of
snow
thrower.
8.
In
heavy,
wet
snow
overlapping
is
essential
to
prevent
overloading.
Permit
machine
to
work
at
a
slow
pace.
If
engine
slows
down
due
to
overloading,
pull
unit
back
out
of
snow
and/or
release
auger
clutch
control
(if
so
equipped)
until
engine
regains
Full
power.
Then
allow
machine
to
propel
itself
back
into
snow.
8
OPERATION
(continued)
9.
T
o
clear
snow
from
steps
or
to
cut
down
drifts,
hold
snow
thrower
by
the
upper
and
lower
handles
and
use
a
side-
to-side
(swinging)
motion.
10.
Before
storing
unit,
let
engine
run
a
few
minutes
to
keep
ice
from
forming
on
moving
parts.
Clear
control
panel
of
snow
and/or
water
to
eliminate
possible
freeze
up
of
controls.
11.
When
storing
unit,
move
vanes
to
vertical
position
to
prevent
possible
dis¬
tortion
of
vanes.
TROUBLESHOOTING
Before
you
take
your
snow
thrower
in
for
repairs,
make
sure
you
have
followed
the
instructions
in
this
manual.
Check
to
see
if
the
malfunction
is
something
you
can
correct
yourself.
The
above
table
may
help
you
locate
your
problem.
PROBLEM
CAUSE
1.
Engine
will
turn
over
but
will
not
start
1.
Ignition
switch
in
"OFF"
position.
2.
Faulty
or
fouled
spark
plug.
3.
Spark
plug
wire
disconnected.
4.
Empty
fuel
tank.
5.
Incorrect
choke
settinq.
2.
Starts
only
after
repeated
tries
1.
Faulty
or
fouled
spark
plug.
2.
Incorrect
choke
settinq.
3.
Idles
rough
1.
Faulty
or
fouled
spark
plug.
2.
Incorrect
choke
settinq.
4.
Engine
overheats
1.
Dirty
air
screen
(4
cycle
engines).
2.
Low
oil
level
(4
cycle
engines).
3.
Spark
plug
loose.
4.
Dirty
cooling
fins.
5.
Improper
fuel
mix
(2
cycle
engines).
5.
Impeller
does
not
turn
1.
Torn
or
worn
belt.
2.
Auger
Clutch
not
engaged.
6.
Electric
start
unit
will
not
crank
the
engine
1.
Extension
cord
not
plugged
in.
2.
Fuse
or
circuit
breaker
for
outlet
blown.
3.
Faulty
extension
cord
or
pluq.
7.
Snow
Thrower
will
not
throw
snow
1.
Auger
Clutch
not
engaged.
2.
Worn
impeller
paddles.
3.
Worn
or
torn
drive
belt.
8.
Engine
will
not
stop
with
key
off.
1.
Faulty
or
disconnected
ignition
switch.
2.
Lead
wire
broken.
CARE
AND
MAINTENANCE
Check
and
tighten
(if
necessary)
all
nuts
and
bolts
before
using
this
machine
and
periodically
thereafter
(approx,
every
two
(2)
hours
of
operation).
Vibration
and/or
rough
handling
may
cause
hardware
to
loosen.
Tighten
as
required.
Refer
to
Engine
Manual
for
mainte¬
nance
procedures
and
requirements
not
covered
in
this
manual.
SPARK
PLUG
Clean
and
regap
spark
plug
as
necessary,
Figure
10.
2
CYCLE
ENGINE:
.035"
(0.9mm)
-
4
CYCLE
ENGINE:
.030"
(0.76mm).
Refer
to
Engine
Manual
for
cleaning
proce¬
dure
and
replacement.
When
removing
plug
for
maintenance
be
sure
to
clean
area
around
spark
plug
to
prevent
dirt
from
entering
engine.
The
spark
plug
is
located
under
the
upper
cover.
A
dirty,
oily
or
carboned
spark
plug
makes
starting
difficult
and
causes
inefficient
operation.
ENGINE
CRANKCASE
MODELS
225,
225E,
300
&
300E
2
CYCLE
ENGINE
-
Proper
engine
lubrication
is
provided
by
adding
the
correct
pre-mixed
fuel
to
gasoline
tank.
See
page
7.
COMPLIANCE
WITH
RADIO
INTER¬
FERENCE
REGULATIONS
CER¬
TIFIED.
REPLACE
SPARK
PLUG
WITH
RESISTOR
SPARK
PLUG
ONLY.
Fig.
10
MODELS
350,350E,
500,
500E
&
520
4
CYCLE
ENGINE
-
Change
oil
after
first
2
hours
of
operation
and
every
25
hours
thereafter.
Check
oil
level
every
5
operating
hours.
Posi¬
tion
snow
thrower
in
its
normal
9
CARE
AND
MAINTENANCE
operating
position
(wheels
and
scraper
blade
on
the
ground).
Clean
dirt
and/or
snow
from
around
open¬
ing
(A),
Figure
11.
Keep
oil
level
to
"FULL"
mark
on
dipstick.
Refer
to
Engine
Manual
for
proper
proce¬
dure
to
drain
and
refill
engine
crankcase.
The
drain
plug
(Q),
Fig¬
ure
11
is
located
on
backside
of
unit
in
the
bottom
left-hand
corner.
Refer
to
Engine
Manual
and/or
BEFORE
OPERATION
instructions
for
proper
type
oil
and
quantity.
CARBURETOR
ADJUSTMENTS
DO
NOT
MAKE
UNNECESSARY
ADJUSTMENTS.
FACTORY
SET¬
TINGS
ARE
SATISFACTORY
FOR
MOST
APPLICATIONS
AND
CON¬
DITIONS.
HOWEVER
IF
ADJUST¬
MENTS
ARE
NEEDED,
PROCEED
AS
FOLLOWS.
4
CYCLE
ENGINE
-
The
engine
has
been
pre-set
to
run
at
3600
RPM.
Turn
high
speed
adjustment
needle
(B),
Figure
11,
to
regulate
flow
of
gasoline
to
the
engine.
For
com¬
plete
adjustment
procedure,
refer
to
Engine
Manual.
IMPORTANT
When
closing
adjusting
needles,
close
finger
tight
only.
Forcing
may
cause
damage.
2
CYCLE
ENGINE
-
The
engine
has
been
pre-set
to
run
at
4300
RPM.
Through
opening
(C),
Figure
12,
in
hand
side
of
machine,
turn
the
mixture
adjusting
screw
(D)
(using
a
screwdriver)
to
regulate
flow
of
fuel
to
the
engine.
IMPORTANT
Do
not
force
screw
tight.
Damage
to
carburetor
or
screw
could
occur.
Refer
to
Engine
Manual
for
com¬
plete
adjustment
procedure.
IMPELLER
CLUTCH
ADJUSTMENT
(for
models
so
equipped)
Adjust
cable
(E),
Figure
13
up
or
down
by
moving
chain
(F)
one-half
line
(one
loop)
at
a
time.
If
impeller
doesn't
rotate
when
engaged,
unhook
chain,
pull
up
on
cable
and
rehook
chain
in
next
lower
loop.
If
impeller
rotates
without
engaging,
unhook
chain
and
rehook
chain
in
next
highest
loop.
Repeat
proce¬
dure
until
proper
adjustment
is
achieved.
PADDLE
REPLACEMENT
If
paddles
become
worn
and
fail
to
propel
the
snow
thrower,
replace¬
ment
may
be
necessary.
Replace
all
3
paddles,
one
at
a
time.
STOP
ENGINE.
1.
Remove
screws
(G),
Figure
14,
that
secure
paddle
(H)
to
impeller
frame
(I).
2.
Remove
old
paddle.
3.
Install
new
paddle
and
secure
it
to
impeller
using
the
same
screws
and
hex
nuts
used
to
secure
old
paddle.
4.
Repeat
procedure
for
other
paddles.
BELT
ADJUSTMENT
-
MODELS
225,
225E,
300
&
300E
If
the
idler
pulley
does
not
apply
enough
tension
to
belt
to
drive
impeller,
adjust
belt
as
follows:
1.
Remove
drive
cover.
Remove
the
(8)
screws
(A
&
B)
shown
in
Figure
16.
Two
plugs,
in
cover,
must
be
removed
to
reach
screws
(A).
2.
Remove
anchor
screw
(Q),
Fig¬
ure
15,
and
reinstall
screw
in
low
position
shown
in
Figure
15.
NOTE
Spring
must
never
be
stretched
(measured
from
end
to
end)
more
that
3"
(76
mm).
If
necessary,
repo¬
sition
anchor
screw
to
position
"X",
Figure
15.
10
3.
Reinstall
drive
cover.
CARE
AND
MAINTENANCE
(continued)
BELT
REPLACEMENT
If
belt
becomes
badly
worn
or
breaks,
replace
belt
as
follows:
STOP
ENGINE.
1.
Remove
drive
cover.
Remove
the
(8)
screws
(A
&
B)
shown
in
Figure
16.
Two
plugs,
in
cover,
must
be
removed
to
reach
screws
(A).
2.
Remove
anchor
screw
(Q),
Fig¬
ure
15,
(Models
225,
225E,
300
and
300E).
3.
Loosen
belt
fingers
(K)
and
belt
guide
(L),
(Models
350,
350E,
500
and
500E).
4.
Remove
old
belt
(J).
5.
Install
new
belt.
6.
With
spring
hooked
around
anchor
screw
shaft
(Models
225,
225E,
300
&
300E)
reinstall
anchor
screw
in
position
"X",
Figure
15.
Check
belt
tension.
The
idler
pulley
must
apply
enough
tension
to
drive
impeller.
If
it
doesn’t,
refer
to
"BELT
ADJUSTMENT"
(Models
225,
225E,
300
&
300E).
7.
Repostion
and
tighten
belt
fin¬
gers
and
guide
(Models
350,
350E,
500
&
500E).
8.
Reinstall
drive
cover.
MAINTENANCE
SCHEDULE
BEFORE
EACH
USE:
.1
Check
crankcase
oil
level
-
4
cycle
engines
only.
2.
C
h
eck
for
loose
screws
and
nuts
-
especially
engine
hardware.
Retighten
if
needed.
AFTER
EACH
USE:
1.
C
l
e
an
machine
of
all
snow
and
slush.
Brush
out
housing
to
remove
sand
and
gravel.
DURING
EACH
SEASON:
as
needed,
lubricate
in
the
areas
indicated
in
Figures
15
and
16
using
a
lightweight
motor
oil.
1.
Idler
Arm
(M)
(under
drive
cover).
Figure
15
or
17.
2.
Vane
Control
Mechanism
(N)
(under
upper
cover).
3.
Impeller
Bearings
(O)
(on
both
ends
of
impeller).
4.
Wheels
(P).
AFTER
EACH
SEASON:
1.
Check
for
belt
wear.
2.
Perform
"STORAGE"
instructions.
(Engine
and
Owner
Manuals)
3.
Wipe
oil
or
grease
on
all
bare
metal
surfaces.
STORAGE
Remove
snow
and
ice
from
unit.
Perform
the
STORAGE
instructions
outlined
in
the
Engine
Manual.
Touch
up
areas
where
paint
has
chipped
off.
Coat
areas
which
do
not
get
painted
with
oil
or
grease
to
prevent
rust.
Refer
to
the
"CARE
AND
MAINTENANCE"
section
and
perform
all
greasing
and
oiling
as
required.
Store
unit
in
a
dry
area.
Fold
down
handles
as
shown
in
Figure
17
and
cover
unit
for
additional
protection.
11
LIMITED
WARRANTY
All
new
Bolens
equipment
is
warranted
by
Bolens
Corporation,
to
the
original
retail
purchaser
only,
to
be
free
from
defects
in
material
and
workmanship
under
normal
use
and
service
for
a
period
of
one
year
from
date
of
purchase.
(This
period
is
limited
to
90
days
if
product
is
purchased
for
commercial,
institutional,
industrial,
rental
or
demonstrator
use.)
This
90
day
limitation
does
not
apply
to
Bolens
QT,
HT
and
Diesel
Model
tractors
and
their
attachments
manufactured
at
Bolens.
This
warranty
does
not
apply
to
engines
manufactured
by
Briggs
and
Stratton,
Tecumseh,
Kohler
and
Wisconsin
or
transmissions
manufactured
by
Peerless.
Warranties
with
respect
to
these
components
are
provided
by
their
respective
manufacturers
and
copies
of
such
warranties
are-delivered
with
each
new
Bolens
product.
Bolens
Corporation’s
obligation
under
this
warranty
is
limited
to
the
repair
or
replacement,
at
its
option
by
an
authorized
Bolens
equipment
dealer,
of
any
part
found
to
be
defective
in
material
or
workmanship
without
charge
for
parts
and
labor.
In
order
to
obtain
warranty
service,
the
owner
is
responsible
for:
1)
Providing
proof
of
purchase
documentation,
ownership
registration
or
copy
of
bill
of
sale.
2)
Informing
any
authorized
Bolens
equipment
dealer
of
the
defect
and
making
the
product
available
for
repair.
(Charges
for
pick-up,
delivery
and
service
calls
are
not
covered
by
this
warranty.)
This
warranty
does
not
cover
defects,
malfunctions
or
failures
caused
by:
t)
Use
of
unauthorized
accessories
or
attachments.
.
„
2)
Lack
of
reasonable
and
necessary
maintenance
as
specified
in
the
‘Operation
and
Safety
Instructions
.
DISCLAIMER
OF
CONSEQUENTIAL
DAMAGES:
BOLENS
CORPORATION
SHALL
NOT
BE
LIABLE
UNDER
ANY
CIRCUMSTANCES
FOR
ANY
INCIDENTAL
OR
CONSEQUENTIAL
DAMAGES
OR
EXPENSE
OF
ANY
KIND,
INCLUDING
BUT
NOT
LIMITED
TO
COST
OF
EQUIP¬
MENT
RENTAL,
LOSS
OF
PROFITS
OR
COST
OF
HIRING
SERVICES
TO
PERFORM
TASKS
NORMALLY
PERFORMED
BY
THE
EQUIPMENT.
LIMITATION
OF
IMPLIED
WARRANTIES:
ANY
IMPLIED
WARRANTIES,
INCLUDED
WITHOUT
LIMITATION
ANY
IMPLIED
WARRANTY
OF
MERCHANTABILITY
OR
FITNESS
FOR
A
PARTICULAR
PURPOSE,
SHALL
BE
LIMITED
IN
DURATION
TO
A
PERIOD
OF
ONE
YEAR
(90
DAYS
IF
PRODUCT
IS
PURCHASED
FOR
COMMERCIAL,
INSTITUTIONAL,
INDUSTRIAL,
RENTAL
OR
DEMONSTRATOR
USE)
FROM
THE
DATE
OF
SALE.
SOME
STATES
DO
NOT
ALLOW
THE
EXCLUSION
OR
LIMITION
OF
INCIDENTAL
OR
CONSEQUENTIAL
DAMAGES,
OR
LIMITATIONS
ON
HOW
LONG
AN
IMPLIED
WARRANTY
LASTS,
SO
THE
ABOVE
LIMITATION
OR
EXCLUSION
MAY
NOT
APPLY
TO
YOU.
This
warranty
gives
you
specific
legal
rights,
and
you
may
also
have
other
rights
which
vary
from
state
to
state.
Bolens
Corporation
215
South
Park
Street
Port
Washington,
Wisconsin
53074

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