Poulan PR450N20S-96112013002, 96112013002 Owner’s Manual
DELUXE PUSH ROTARY
LAWN MOWER
115 58 77-27 Rev. 5
01.19.16 BY Printed in U.S.A.
TABLE OF CONTENTS
Safety Rules ..................2-4
Assembly .......................6-9
Operation ..................10-15
Maintenance ..............16-18
Service and
Adjustments ...................19
SAFETY RULES
IMPORTANT: This cutting machine is
capable of amputating hands and feet and
throwing objects. Failure to observe the
following safety instructions could result in
serious injury or death.
Look for this symbol to point out im por tant safety precautions. It means
CAU TION!!! BECOME ALERT!!!
YOUR SAFE TY IS INVOLVED.
WARNING: In order to prevent ac ci den tal starting when setting up, trans port ing, ad just ing or making repairs, always
dis con nect spark plug wire and place wire
where it can not come in contact with plug.
CAUTION: Muffler and other engine
parts become extremely
hot during operation and
remain hot after engine
has stopped. To avoid
severe burns on contact,
stay away from these areas.
WARNING: Engine exhaust, some of its
constituents, and certain vehicle com po nents contain or emit chem i cals known to
the State of Cal i for nia to cause can cer and
birth defects or oth er re pro duc tive harm.
WARNING: Battery posts, terminals and
related accessories contain lead and lead
compounds, chemicals known to the State
of Cal i for nia to cause can cer and birth
defects or oth er re pro duc tive harm. Wash
hands after handling.
Storage ......................20-21
Troubleshooting ........22-23
In the state of California the above is required by law (Section 4442 of the California Public Resources Code). Other states
may have similar laws. Federal laws apply
on federal lands. A spark arrester for the
muffler is available through your nearest
Sears Parts & Repair Center (See the REPAIR PARTS section of this manual).
I. CHILDREN
WARNING: CHILDREN CAN
BE SERIOUSLY INJURED OR
KILLED BY THIS EQUIPMENT.
Carefully read and follow all of
the safety instructions below.
The American Academy of Pediatrics
recommends that children be a minimum
of 12 year of age before operating a
pedestrian controlled lawn mower and a
minimum of 16 years of age before operating a riding lawn mower.
Tragic accidents can occur if the op er a tor is
not alert to the presence of children. Children
are often attracted to the ma chine and the
mowing activity. Never assume that children
will remain where you last saw them.
• Keep children out of the mowing area
and under the watchful care of a re spon si ble adult other than the operator.
• Be alert and turn machine off if chil dren
enter the area.
• Before and while walking back wards,
look behind and down for small chil dren.
• Never allow children to operate the
machine.
WARNING: This lawn mower is
equipped with an internal com bus tion
engine and should not be used on or near
any un im proved forest-covered, brushcovered or grass-cov ered land unless the
engine’s exhaust system is equipped with
a spark arrester meeting applicable local
or state laws (if any). If a spark arrester is
used, it should be maintained in effective
working order by the operator.
II. GENERAL OPERATION
• Read, understand, and follow all
in struc tions on the machine and in the
manual(s) before starting. Be thor ough ly
familiar with the controls and the proper
use of the machine before starting.
• Do not put hands or feet near or under
rotating parts. Keep clear of the dis charge opening at all times.
• Only allow responsible individuals, who
are familiar with the in struc tions, to
operate the machine.
2
SAFETY RULES
• Clear the area of objects such as rocks,
toys, wire, bones, sticks, etc., which
could be picked up and thrown by
blade. Stay behind the handle when the
engine (motor) is running.
• Be sure the area is clear of other people
before mowing. Stop ma chine if anyone
enters the area.
• Do not operate machine bare footed or
while wearing sandals. Al ways wear
substantial footwear with good ankle
support while mowing.
• Do not pull mower backwards unless
absolutely nec es sary. Always look down
and behind before and while moving
backwards.
• Never direct discharged material toward
anyone. Avoid discharging material
against a wall or obstruction. Material
may richochet back toward the operator. Stop blade when crossing gravel
surfaces.
• Do not operate the mower without
proper guards, plates, grass catcher or
oth er safety protective devices in place.
• See manufacturer’s instructions for
proper operation and installation of
accessories. Only use accessories approved by the manufacturer.
• Stop the blade(s) when crossing grav el
drives, walks, or roads.
• Never leave a running machine unattended.
• Stop the engine (motor) and wait until
the blade comes to a complete stop
before clean ing the machine, removing
the grass catcher, or unclogging the
discharge chute.
• Mow only in daylight or good artificial
light.
• Do not operate the machine while under
the influence of alcohol or drugs.
• Never operate machine in wet grass.
Always be sure of your footing: keep a
firm hold on the handle; walk, never run.
• Disengage the drive system, if so
equipped, before starting the engine (motor).
• If the equipment should start to vi brate
abnormally, stop the engine (motor) and
check immediately for the cause. Vibration is generally a warning of trouble.
• Always wear eye protection when op er at ing machine.
• Use extra care when approaching blind
corners, shrubs, trees, or other objects
that may obscure vision.
• When loading or unloading this machine, do not exceed the maximum
recommended operation angle of 15°.
• Wear proper Personal Protective Equipment (PPE) while operating this machine, including (at a minimum) sturdy
footwear, eye protection, and hearing
protection. Do not mow in shorts or
open toed footwear.
Always let someone know you are outside
mowing.
III. SLOPE OPERATION
Slopes are a major factor related to slip &
fall accidents, which can result in severe
injury. All slopes require extra caution. If
you feel uneasy on a slope, do not mow it.
DO:
• Mow across the face of slopes: nev er
up and down. Exercise extreme caution
when changing direction on slopes.
• Remove obstacles such as rocks, tree
limbs, etc.
• Watch for holes, ruts, bumps or hidden
objects. Uneven terrain could cause a
slip and fall accident. Tall grass can hide
obstacles.
DO NOT:
• Do not mow near drop-offs, ditches or
embankments. You could lose your footing or balance.
• Do not mow on wet grass or excessively
steep slopes. Poor footing could cause
a slip and fall accident.
IV. SAFE HANDLING OF GASOLINE
To avoid personal injury or property damage, use extreme care in handling gasoline. Gasoline is extremely flammable and
the vapors are explosive.
• Extinguish all cigarettes, cigars, pipes
and other sources of ignition.
• Use only an approved container.
• Never remove gas cap or add fuel with
the engine running.
• Allow engine to cool before refueling.
• Never refuel the machine indoors.
• Never store the machine or fuel container where there is an open flame, spark
or pilot light such as a water heater or
on other appliances.
• Never fill containers inside a vehicle, on
a truck or trailer bed with a plastic liner.
Always place containers on the ground
away from your vehicle before filling.
3
SAFETY RULES
• Remove gas-powered equipment from
the truck or trailer and refuel it on the
ground. If this is not possible, then
refuel such equipment with a portable
container, rather than from a gasoline
dispenser nozzle.
• Keep the nozzle in contact with the rim
of the fuel tank or container opening at
all times until fueling is complete. Do
not use a nozzle lock-open device.
• If fuel is spilled on clothing, change
clothing immediately.
• Never overfill fuel tank. Replace gas
cap and tighten securely.
V. GENERAL SERVICE
• Never run a machine inside a closed
area.
• Never make adjustments or repairs with
the engine (motor) running. Dis con nect
the spark plug wire, and keep the wire
away from the plug to prevent ac ci den tal starting.
• Keep all nuts and bolts tight to be sure
the equipment is in safe working condition.
• Never tamper with safety devices.
Check their proper operation reg u lar ly.
Never do anything to interfere with the
intended function of a safety device or
reduce the protection provided by a
safety device.
• Keep machine free of grass, leaves, or
other debris build-up. Clean oil or fuel
spillage. Allow machine to cool before
storing.
• Stop and inspect the equipment if you
strike an object. Repair, if nec es sary,
before restarting.
• Never attempt to make wheel height
adjustments while the engine is running.
• Grass catcher components are sub ject
to wear, dam age, and de te ri o ra tion,
which could expose moving parts or
allow objects to be thrown. Frequently
check com po nents and replace with
man u fac tur er’s recommended parts,
when necessary.
• Mower blades are sharp and can cut.
Wrap the blade(s) or wear gloves, and
use extra caution when ser vic ing them.
• Do not change the engine governor setting or overspeed the engine.
• Maintain or replace safety and instruction labels, as necessary.
CONGRATULATIONS on your purchase of a new Lawn Mower. It has been designed,
en gi neered and manu fac tured to give you the best pos sible de penda bil ity and per form ance.
Should you experience any prob lems you can not easily remedy, please contact your
nearest authorized service center. They have com pe tent, well trained tech ni cians and
the proper tools to service or repair this unit.
• Read the SAFETY RULES and this Operator's Manual in its entirety before you attempt to assemble or operate your new lawn mower to insure proper operation and
to prevent injury to yourself and others. Save this manual for future reference.
• Your new lawn mower has been assembled at the factory with the exception of those
parts left unassembled for shipping purposes. To ensure safe and proper operation
of your lawn mower, all parts and hardware you assemble must be tightened securely. Use the correct tools as necessary to ensure proper tightness.
• All parts such as nuts, washers, bolts, etc., necessary to complete the assembly have
been placed in the parts bag.
TO REMOVE LAWN MOWER FROM CARTON
• Remove all loose parts from carton.
• Remove lawn mower hous ing with care. Avoid touch ing blade under hous ing.
Always wear gloves or other protection when working under or lifting mower.
4
THINGS TO KNOW BE FORE YOU ASSEMBLE OR OPERATE
YOUR LAWN MOW ER
Do I have a side or rear discharge lawn
mower?
Look for the grass discharge opening on
your mower. If the opening is on the right
side of the mower housing, it is a side
discharge mower. If the opening is at the
back of the mower housing, it is a rear discharge mower. Only rear discharge lawn
mowers have a grass catcher in clud ed
with the mower. Approved grass catchers for side discharge mow ers may be
purchased from your nearest au tho rized
dealer.
Do I have a mulching lawn mower?
Look for the grass discharge opening on
your mower. Raise the discharge deflector
(rear door on rear discharge mowers). If
the opening is closed off by a plate, then
your lawn mower is mulcher ready. To
convert to a discharging mower, see the
Operation section of this manual.
What is the right and left side of the
lawn mower?
When right hand (RH) or left hand (LH) is
mentioned in this man ual, it means when
you are in the operating po si tion (stand ing
be hind the handle).
FRONT
What kind of engine is on my lawn
mower?
When learning how to operate your new
lawn mower, you will need to know what
kind of engine powers the mower. A decal
on the engine will indicate the man u fac tur er and type or brand name of the engine.
BRIGGS & STRATTON ENGINES
OTHER ENGINES
LEFT
HAND
SIDE
RIGHT
HAND
SIDE
BACK or REAR
(Op er at ing Position)
5
ASSEMBLY
CAUTION: Do not operate this lawn
mower without the discharge deflector or
an entire approved grass catcher in place.
These guards are for your protection and are
required by the American National Standards
Institute and Consumer Products Safety
Com mis sion.
CAUTION: Disconnect spark plug wire
from spark plug and place wire where it
cannot come in contact with plug.
HOW TO SET UP YOUR MOW ER
UNFOLD HANDLE
IMPORTANT: Unfold handle carefully so
as not to pinch or damage con trol cables.
2 POSITION / “ADJUSTABLE” HANDLES
• Raise handles until lower handle section
locks into place in operating position.
Operator
presence
control bar
LIFT
UP
MOWING
POSITION
3 POSITION “QUICK” HANDLES
• Raise lower handle section to operating
position and squeeze the bottom ends
of lower handle towards each other
until the pin in handle can be inserted
into one of the three height adjustment
holes.
Handle pin
SQUEEZE
Handle
ad just ment
bracket
DOMED HOUSING MODELS ONLY:
• Raise handles until lower handle section
locks into place in mowing position.
• Insert bolt through handle and bracket
and secure with nut.
LIFT
UP
Lower handle
Upper
handle
Handle
knob
3 POSITION “EZ” HANDLES
• Raise lower handle section to operating
position and align hole in handle with
one of three height positioning holes.
• Insert handle bolt through handle and
bracket and secure with knob.
• Repeat for opposite side of handle.
Bolt
Knob
Operator
presence
control bar
LIFT
UP
Bolt
MOWING
POSITION
LIFT
UP
Upper
handle
Handle
knob
Lower handle
Nut
Bracket
Handle
bracket
6
ASSEMBLY
ALL HANDLES
• Raise upper handle section into place
on lower han dle, remove protective padding and tighten both handle knobs.
• Remove handle padding holding operator
pres ence control bar to upper handle.
• Your lawn mower handle can be adjusted for your mowing comfort. Refer
to “ADJUST HANDLE” in the Service
and Adjustments section of this manual.
NOTE: For shipping purposes, the rear
wheels on your lawn mower may not be
adjusted to the same position as the front
wheels. Before operating mower adjust all
wheels to the same cutting height.
INSTALL STARTER ROPE
(MODELS EQUIPPED WITH T-KNOB)
• Loosen T-knob.
• Hold control bar against upper handle.
• Slowly pull engine starter rope out until
rope will slip into loop of rope guide.
• Tighten T-knob.
INSTALL REAR WHEELS
(HIGH WHEEL MOWERS ONLY)
Some high wheel models require wash ers
which will be pro vid ed in a parts bag. If provided, install washers on the axle first as shown.
• Install one (1) rear wheel on the axle of
rear wheel adjuster.
• Install 3/8-16 locknut and tighten securely.
• Repeat procedure for other rear wheel.
O-Ring
Flanged
locknut
Axle
Washer
Wheel
assembly
Rope guide
Control bar
Upper handle
T- K n o b
Engine
starter rope
AS SEM BLE GRASS CATCHER
(REAR DISCHARGE MOWERS ONLY)
IMPORTANT: If your model lawn mower
is mulcher ready, the mulcher plate or
plug must be removed before using
mower as a bagger. To convert mower to
bagging or discharging, see the Operation
section in this manual.
Look at the different grass catcher illustrations that follow. Determine which type
of grass catcher you have and follow the
appropriate instructions.
7
ASSEMBLY
“FABRIC TOP” GRASS CATCHERS
TO ASSEMBLE AND ATTACH GRASS
CATCH ER
• Put grass catcher frame into grass bag
with rigid part of bag on the bottom.
• Slip vinyl bindings over frame.
NOTE: If vinyl bindings are too stiff, hold
them in warm water for a few minutes. If
bag gets wet, let it dry before using.
• Lift the rear door on the mower housing.
• For HINGE BRACKET mounted catcher,
place the grass catch er frame onto the
formed tabs on the rear door hinge
bracket.
• For HANDLE BRACKET mounted
catcher, place frame side hooks into
slots in handle brackets.
• For DOOR PIVOT PIN mounted catcher,
place the grass catcher frame hooks
onto the door pivot pins.
• For DOOR SLOT mounted catcher,
place the grass catcher frame hooks
into the slots of the rear door.
NOTE: The grass catcher is secured to the
lawn mower housing when the rear door is
lowered onto the grass catcher frame.
HINGE BRACKET MOUNTED
Hinge bracket
Formed tabs
HANDLE BRACKET MOUNTED
Handle bracket hooks Rear
door
Rear door
Grass
catcher
frame
Grass
catcher
handle
Frame
handle
Vinyl
bindings
CAUTION: Under normal usage, the
Frame
opening
catcher material is subject to de te ri o ra tion and wear and should, therefore, be
checked frequently for replacement. Any
replacement catcher should be checked
to ensure compliance with original man u fac tur er's spec i fi ca tions.
CAUTION: Do not run lawn mower
with out the discharge deflector (rear
door), approved grass catcher, clipping
de flec tor or mulcher plate in place. Never
attempt to operate mower with the dis charge deflector (rear door) removed or
propped open.
Catcher frame side hook
DOOR PIVOT PIN MOUNTED
Pivot pins Grass
Catcher frame hook
DOOR SLOT MOUNTED
Catcher frame hook
8
Rear
door
Rear door slots
catcher
handle
Grass
catcher
han dle
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