PATENTED WORLD’S BEST
LAWN EDGERS
Model 550
Deluxe
Honda Powered 25cc 4-S troke
Gasoline Model
OPERA T OR/OWNER
MANU AL
● Safety Precautions
● Assembling
● Operating and
Edging Instructions
● Maintenance and
Workshop Manual
®
ATOM
AS WITH ANY
POWER TOOL
IMPROPER USE
CAN CAUSE
SERIOUS INJURY
MAKE SURE THIS
MANUAL IS READ
AND CAREFULL Y
UNDERSTOOD
BEFORE ST ARTING
OR OPERA TING
THIS EQUIPMENT
NOTE: For full “Honda” engine instructions and maintenance please refer to separate
“Honda Owners Manual” supplied.
IMPORT ANT MANUAL – DO NOT THRO W AWAY
Manual always to be available for reference or instructing new operators. Please fill
in details of purchase on back cover page.
ACN 000 583 924
✔
Failure to obey a safety
warning can result in
injury to yourself and others.
THE PURPOSE OF SAFETY WARNING AND NOTES IN THIS
MANUAL IS TO ATTRACT YOUR ATTENTION TO POSSIBLE
DANGERS AND THE EXPLANATIONS WITH THEM DESERVE YOUR CAREFUL ATTENTION AND
UNDERSTANDING. THE SAFETY WARNINGS IN THIS MANUAL AND ON THE EDGER DO NOT, BY
THEMSELVES, ELIMINATE ANY DANGER. THE INSTRUCTIONS OR WARNINGS THEY GIVE ARE NOT
SUBSTITUTES FOR PROPER ACCIDENT PREVENTION MEASURES.
INTRODUCTION
This Atom Gasoline Powered Lawn Edger is designed
to the highest standards to ensure you many hours of
uninterrupted service.
Pay special attention to the safety precautions outlined
on pages 2 to 5. Only persons who understand this
Manual are to operate the Lawn Edger.
T o receive maximum performance and satisfaction from
your Lawn Edger, it is important that you read and
understand the maintenance and safety precautions
before using the edger. Cont act your Atom dealer or the
Atom distributor in your area if you do not understand or
cannot carry out any of the operating instructions in this
Manual.
Atom’s philosophy is to continually improve all of its
products. As a result, engineering changes and
improvements are made from time to time. If the
operating characteristics or the appearance of your
Atom Edger differs from those described in this
manual, please contact your Atom dealer for
information and assistance. Call (02) 9810 0194
(within Australia) for your nearest servicing dealer.
NOTE: OUTSIDE AUSTRALIA REFER TO BACK
COVER P AGE.
CONTENTS
Parts and Controls ................................................2-3
Safety Precautions ................................................3-5
Assembling the Lawn Edger.....................................6
Fuel and Oil..............................................................6
Starting and Stopping Instructions .........................7-8
Edging Instructions...................................................8
Maintenance Instructions
Blade Replacement ........................................ 10
Lubrication of Gears........................................ 11
Spark Plug ...................................................... 11
Air Filter Maintenance...................................... 11
Removing Blade Cover ................................... 11
Carburettor Adjustment ...................................12
Trouble Shooting T ip s......................................13
Parts List and Exploded View ............................14-15
Complete Workshop Manual............................. 16-19
At the rear of this manual is a workshop manual for the
lawn edger body . For full Honda engine instructions and
maintenance, please refer to the separate “Honda
Owner’s Manual” supplied. All service and warranty on
your Honda engine can be done by your nearest
approved Honda dealer ....................................16-19
Warranty................................................................20
PARTS & CONTR OLS
1,2 The handles of the Lawn Edger are held by both
hands.
3 The throttle trigger which increases speed of
engine for automatic safety clutch to engage and
thus rotate blade.
4 ON/STOP switch.
5 Starter grip the grip of the pull starter which is the
device to start the engine.
6 Handle nut for holding handles onto housing.
7 Height adjustment for adjusting depth of cutting
blade.
8 Blade cover reduces the risk of flying debris and
direct contact with the feet or hands.
9 Sight guide for edging.
10 Cutter blades rotate when engine speed is
increased above idle.
11 Grass shield debris deflector reduces flyback of
stones and foreign material.
12 Wheel for moving and guiding edger.
13 Cross Brace, attaches downward on handle.
14 Left and right Handle Tubes.
15 Fuel cap, for sealing the fuel tank filler.
16 Fuel Tank.
17 Choke lever for cold engine starting.
18 Filter housing covers the air filter element.
19 Muffler reduces exhaust noises and diverts gases
away from operator.
20 Spark Plug terminal cap connects the spark plug
to the ignition wire.
21 Fuel pump primer under carburettor provides
additional fuel for starting.
22 Warning Label, on left handle.
23 Warning Label, on blade guard.
2
SAFETY WARNINGS
!
!
WARNING
!
NOTE
Advises you of information or
instructions vital to the
operation or maintenance of the equipment.
This Lawn
Edger must
not be operated by minors.
Bystanders, especially children
and animals, should not be
allowed in the area where a
machine is in use at least 15
metres (50 feet) away (Fig. 4). Never let the unit
run unattended.
As with any power tool,
the use of any lawn edger
may be dangerous. It is important that you read,
fully understand, and observe the following
safety precautions and warnings. Re-read this
operator’s manual and the safety instructions
periodically.
SAFETY PRECA UTIONS
3
PARTS & CONTROLS (CONTINUED)
Do not lend, rent or sell
this machine without the
operator’s manual. Be sure that anyone using
this unit understands the information contained
in this manual before use.
As with any power tool,
some special safety
precautions must be observed to reduce the risk
of personal injury . Careless or improper use may
cause serious or even fatal injury.
Safe use of an Atom Lawn Edger involves:
1. The Operator
2. The Atom Edger
3. The use of the Atom Edger
Electrical shock. Never
touch electrical wires or
components while the engine is running. They
are sources of high voltage and can give you
an electrical shock. Replace immediately any
faulty tension lead or spark plug cap.
THE OPERATOR
PHYSICAL CONDITION
Operator must be in good physical
condition and mental health, and not
under the influence of any substance
(drugs, alcohol, etc.) which might
impair vision, dexterity or judgement
(Fig. 3).
!
WARNING
!
WARNING
!
WARNING
!
WARNING
!
WARNING
22
WARNING – TO PREVENT SERIOUS INJUR Y
FOLLOW ALL SAFETY PRECAUTIONS IN OPERATOR MANUAL – IMPROPER USE CAN CAUSE SERIOUS OR FATAL
INJURY • OBJECTS MAY BE THROWN OR RICHOCHET IN ALL DIRECTIONS – ALWAYS WEAR EYE PROTECTION •
KEEP BYSTANDERS A T LEAST 50FT (16M) AWAY • A LWAYS WEAR EAR PROTECTION • WEAR SNUG FITTING CLOTHING
• MINORS SHOULD NEVER BE PERMITTED TO USE THIS EDGER • WEAR STURDY SHOES WITH NON-SLIP SOLES •
DO NOT LEND, RENT OR SELL THIS EDGER WITHOUT THE OPERATOR MANUAL.
ROTA TING BLADE
DIRECTION OF ROTA TION
WARNING
KEEP INSIDE OF BLADE GUARD CLEAN.
ESPECIALLY IN WET CONDITIONS A
CLOGGED GUARD CAN SLOW DOWN
OR STOP BLADE ROTATION AND MAY
CAUSE DAMAGE TO AUTOMATIC
SAFETY CLUTCH. ALWAYS OPERATE
BLADE AT HIGH SPEED WHEN EDGING.
DANGER
!
KEEP HANDS & FEET AWAY
4
SAFETY PRECAUTIONS (CONTINUED)
Prolonged use of any
hand-held powered
machine exposing the operator to vibrations
may produce whitefinger disease (Raynaud’s
phenomenon) or carpal tunnel syndrome. These
conditions reduce the hand’s ability to feel and
regulate temperature, produce numbness and
burning sensations, and may cause nerve and
circulation damage and tissue necrosis.
!
WARNING
PROPER CLOTHING
Clothing must be sturdy and snug-fitting, but allow
complete freedom of movement (see Fig. 5). Avoid
loose-fitting jackets, flared or cuffed pant s, or anything
that could trip the operator. W ear overalls
or long pants to protect your legs. DO
NOT wear shorts. Use of gloves when
working with the Lawn Edger is
recommended.
Good footing is most
important. Wear
sturdy shoes with
nonslip soles.
DO NOT wear
sandals or
operate with bare
feet. In hot or
sunny conditions,
always wear a hat
and long sleeve shirt for protection against skin
cancers. Use of a good brand of sunscreen cream is
also recommended on exposed skin surfaces.
Proper eye protection is
a must. The blade cover
may not protect the operator from all fast moving
foreign objects, even though the discharge is
directed away from the operator, as ricochets
and bouncebacks may occur during lawn
edging operations. Never operate an Atom
Edger unless wearing goggles or properly fitting
safety glasses with adequate top and side
protection which comply with ANSI Z 87.1.
!
WARNING
Replace immediately broken or cracked blade covers
and grass shield debris deflector.
Engine noise may damage your hearing. Wear sound
barriers (ear plugs or ear mufflers) to protect your hearing.
Continual and regular users should have their hearing
checked regularly .
SAFE FUELING INSTRUCTIONS
Gasoline is an extremely
flammable
and explosive fuel. Use
extreme caution when handling
gasoline. Do not smoke or
bring any fire or flame near the
fuel (Fig. 6).
!
WARNING
Refuel outdoors only. Always switch off the engine
and allow it to cool before refueling. Relieve fuel tank
pressure by loosening fuel cap slowly . Never remove
fuel filler cap while engine is running.
Select bare ground for fueling, then move at least 3
metres (10 feet) from the fueling spot before starting the
engine. Wipe off any spilled fuel before starting your Atom
Edger and check for leakage.
Always tighten fuel filler cap securely after fueling.
Do not operate the Edger when fatigued. Be alert – if
you get tired while operating the machine, take a break.
Tiredness may result in loss of control. W orking with any
power tool can be strenuous. If you have any condition
that might be aggravated by strenuous work, check with
your doctor before operating the machine.
Always allow engine to
cool before refueling.
Accidental spillage of gasoline over hot engine
could cause fire or explosion to occur with
consequent possible disfigurement or fatal
injury. Wash and clean hands after fueling.
!
WARNING
The Atom Edger unit uses gasoline only for fuel (Refer
“Fuel and Oil,” page 6).
SAFE STARTING
You should always inspect your unit before starting it.
Make sure the controls and safety devices are working
properly .
Place the machine on firm ground or other solid surface
in an open area. Maintain good balance and secure
footing.
!
NOTE
When you pull the starter grip,
do not wrap starter rope around
your hand. Do not allow grip to snap back, but
guide starter rope slowly back to permit rope to
rewind properly .
Failure to follow this procedure may result in injury to
hand or fingers or may damage the starter mechanism.
The Atom Edger is a one-
person machine. To
reduce the risk of eye or other injury from thrown
objects, ensure that bystanders are at least 15
metres (50 feet) away during use. Replace
immediately any worn or broken debris deflector
shield or blade cover. If approached, release
throttle trigger to immediately de-accelerate the
engine.
!
WARNING
5
SAFE WORKING INSTRUCTIONS
AND IMPORTANT ADJUSTMENTS
Never operate your machine if it is damaged, improperly
adjusted or not completely and securely assembled. At
correct idle speed, the blade should not turn. Do not use
the Atom Edger with incorrect idle speed (refer Adjusting
the Carburettor instructions on page 12).
SAFE MAINTENANCE, REPAIR
AND STORING
Use only original Atom replacement parts for
maintenance and repair. Use of parts manufactured by
others will void warranty and/or may cause serious or
fatal injury .
SAFETY PRECAUTIONS (CONTINUED)
Always stop the engine,
make sure that the blade
is stopped, and disconnect the spark plug
before adjusting blade height, doing any
maintenance or repair work, or cleaning the unit
or blade.
!
WARNING
Follow the maintenance instructions in the appropriate
section of this manual. Any repairs should be carried out
by an authorized servcie dealer or person with suitable
servicing experience.
A worn or damaged
muffler is a fire hazard
and may cause loss of hearing. Check to see
that the muffler is in good condition. The lawn
edger must not be operated if the muffler is not
functioning properly, is damaged, or has been
removed. In order to reduce the risk of fire, do
not modify or remove any part of the muffler and
ensure it is not worn or broken.
!
WARNING
Remember that the risk of forest or grass fires is greater
in hot weather.
Check fuel filler cap for leaks at regular intervals. Use
the specified spark plug and make sure it and the ignition
lead are always in good condition.
Never touch a hot muffler
as burns will result.
!
WARNING
Store Atom Edger in a dry, high or blocked location and
out of reach of children.
Never store the machine
with gasoline inside a
building where fumes may reach an open flame
or spark (e.g. gas or oil-fired heater appliance,
electric motor, etc.).
!
WARNING
Before storing for a longer period, always empty the fuel
tank.
Keep the space behind and beside the engine clear at
all times to allow for the escape of hot and toxic exhaust
fumes.
Operate your machine under good visibility and daylight
conditions only . Work carefully.
The engine exhaust from
this product contains
chemicals known to the State of California to
cause cancer, birth defects or other
reproductive harm.
SAFE WORKING CONDITIONS
When working with the Atom Edger, always wrap your
fingers tightly around each handle. Keep your hands in
this position to have your machine under control at all
times. NEVER attempt to operate the Atom Edger with
one hand, as a loss of control may result in serious or
fatal injury .
Make sure the handle grips are in good condition and
free of moisture, pitch, oil or grease. Use both hands,
one on each handle, to operate and control the lawn
edger. Do not overreach. Keep proper footing and
balance at all times.
!
WARNING
Do not touch hot engine
during and immediately
after use as you may burn yourself.
!
WARNING
!
WARNING
Start and operate your
unit outdoors and in a
ventilated area.
D ANGER!
FUEL IS EXTREMEL Y FLAMMABLE. HANDLE IT
WITH CARE. KEEP AWAY FROM IGNITION
SOURCES. DO NOT SMOKE WHILE FUELING
YOUR EQUIPMENT .
Always allow engine to
cool before refueling.
Accidental spillage of gasoline over a hot engine
could cause fire or explosion to occur. See
Page 4 – Safe Fueling Instructions.
Running the engine with
insufficient oil can cause
serious engine damage. Be sure to check the
engine on a level surface, with the engine
stopped, at regular intervals.
Y our Atom Edger is powered by a four-stroke, air cooled
engine which requires unleaded gasoline only in the fuel
tank.
NOTE: Do not mix oil with the gasoline.
Only use sufficient fuel for a few weeks work and store in
an approved safety type container.
Pressure may build up in
the canister . Remove fuel
cap slowly to avoid injury from fuel spray.
Replace fuel cap securely. Take care when
handling gasoline. A void direct contact with the
skin and avoid inhaling fuel vapor.
!
WARNING
!
WARNING
!
WARNING
!
WARNING
ASSEMBLING THE lll AT OM LAWN EDGER
6
Before fueling the edger, clean the filter cap and the area
around it to ensure that no dirt falls into the tank.
ENGINE OIL LEVEL
1. Remove the oil filler cap and fill tank with oil container
supplied and check the oil level: it should reach the
top of the oil filler neck.
2. If the level is low, fill to the top of the oil filler neck
with the recommended oil.
After every 10 hours use, check the engine oil level and
replenish oil up to the top of the oil filler neck.
FUEL AND OIL
A. Fit left handle tube #1 to edger body #2 as
shown. Note: Left handle has instruction label.
B. Insert 150mm (6”) bolt #3 through handle bolt hex
head retainer #9 then through left handle tube #1,
edger body #2 and right handle tube #11.
Note: Plastic retainer #9 to be pointing
forward.
C. Screw large wing nut #10 on protruding
bolt #3 and tighten.
D. Fit cross-brace #4 to handles #1 and
#11 with brace touching ground. Use
2 screws #5 and 2 lock nuts #6
provided in packet. Use straight
bladed screwdriver (or Torx 25
screwdriver).
E. Insert trigger handle #7 into
right handle tube #11 using
one screw #5 and one nut
#6 to hold in place.
Note: Throttle cable/switch
wire from engine must be
fitted under handle and
clipped into holding lugs
of cross-brace #4. Do not
loop throttle cable/switch
wire over handle.
F. Insert left handle #8 into left handle tube #1 using
one screw #5 and one nut #6 to hold in place.
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