Atom 102 Operator Owner's Manual
ATOM
LAWN
EDGER
PRO
GASOLINE MODEL
102
OPERATOR/OWNER
MANUAL
Patents
Granted in Australia
& USA
Design
Registrations
Granted in Australia,
USA,
Japan, Great
Britain
Assembling
0
Safety Precautions
o Operating
Instructions
t Maintenance
IMPROPER
USE
CAN CAUSE
SERIOUS
INJURY
MAKE
SURE THIS
MANUAL
IS
READ
AND
CAREFULLY
UNDERSTOOD
BEFORE
STARTING
OR
OPERATING
THIS
EQUIPMENT
1ST
EDITION
IMPORTANT MANUAL
-
DO NOT
THROW AWAY
Manual
always
to be available
for reference
or instructing
new
operators.
SUPERVISORS THIS
IS YOUR
RESPONSBILIW
I
CONTENTS
Parts
and Controls
....
..3
Safety Precautions ..........
......
...........
4
Assembling the Lawn
Ed9er..............
8
Fuel Mix and Fuelling
............ ...........9
Starting and Stopping......
...........
10
Operating 1nstructions
.....................
12
Maintenance Instructions.. ...............
I 4
Air filter maintenance .....................
1 4
Carburettor adjustment...
................
1 5
Cutter
Blade Replacement......... .....'16
Lubrication of Gears...... ................. 17
Checking
the spark
plugs
......,......... 1 7
Checking muff|er......... ...... ............
17
Trouble Shooting.......... .... .............
1 8
Parts List......
..........18/19
INTRODUCTION
This Manual contains
operating, as-
sembling,
safety, and maintenance,
instructions for the Atom
Lawn
Edger.
Pay special attention to the safety
precautions
outlined on
pages
4
to
7. Allow only
persons
who understand this Manual to operate the
Lawn Edger. This lawn edger
is not
to
be
used for
any
purpose
other
than
for edging lawns.
To receive
maximum
performance
and
satisfaction
from
this
Lawn
Edger, rt is
important
that
you
read
and
under-
stand
the maintenance
and
safety
pre-
cautions
before
using
the
edger
Contact
your
Atom
dealer
or the
Atom
distributor
for
your
area if
you
do
not
understand
or cannot
carry out
any of
the instructions
in this Manual.
ATOM'S
philosophy
is to continu-
ally improve all ol its
products.
As a
resull,
engineoring changes and
im-
provoments
are fnade from
time-to-
time. lf the operaling
characteristics
or lhe
app€arance of
your
lawn
edger differs lrorn lhose
described
in this Manual,
ploase
contact
your
ATOM dealor for irrformation
and
assistance.
ATOM ressrvos lhr: right to
make
changes al
any
lirnc
wilhnul nolice.
1,2
The handles of the Lawn
Edger held by
both
hands.
3. The
throttle trigger which increases speed of engine for
automatic safety clutch to engage
and thus rotate
blade.
4. Starter
grip
the
grip
of the
pull
starter
which is the device to
start the engine.
5. ON/OFF
switch.
6. Handle nut for
holding handles
onto
housing
(and
adjusting
anti-vibration
of handle).
7.
Height adjustment
for adjust-
ing
depth of cutting blade.
Blade cover reduces
the risk
of flying
debris and direct con-
tact
with the feet or hands.
Cutter blade rotates when engine
speed is increased
above
idle.
10.
/
Wheel for moving and
guiding
edger.
Grass shield reduces flyback
of stones and foreign material.
Fuel cap for sealing the fuel
tank filler.
13. Choke lever for cold engine
starting.
14. Filter housing
covers the air
filter
element.
15. Fuel
pump pramer provides
additional fuel for a cold start.
16. Spark
Plug
terminal connects
the spark
plug
to the ignition
wire.
17. Muffler reduces exhaust
noises and diverts exhaust
gases
away from operator.
I
12.
PARTS AND CONTROLS
10
1't.
12.
8.
9.
A
WARNING
As
with any
power
lool some
spe-
cial
safely
precautions
must
be ob-
served to reduce
the risk of
per-
sonal injury. Careless
or improper
use may
cause serious or
even
fatal injury.
SAFETY WARNINGS
HE PURPOSE OF SAFETY
WARNINGS AND
NOTES IN TIlIS MANTJAL IS
T
TTRACT YOUR
ATTENTION TO POSSIBLE
DANGEIIS AND
THE
XPLANATIONS
WITH THEM DESERVE YOUR CAREFUL
ATTENTION AN
UNDERSTANDING THE
SAFETY WARNINGS IN
THIS MANUAL AND ON
THE
LAWN EDGER DO NOT, BY THEMSELVES,
ELIMINATE ANY
DANGER. THE
INSTRUCTIONS OR WARNINGS THEY
GIVE ARE NOT
SUBSTITUTES FOR
PROPER
ACCIDENT PREVENTION MEASURES
WARNING: Failure
to obey a safety
warning
can result
in
injury to
yourself
and
others.
NOTE:
Advises
you
of information
or instructions
vital to the
!
operation or
maintenance
of the equipment.
-11. FIG 2
SAFETY
PRECAUTIONS
Like any
power
tool the use of any
lawn edger may be
dangerous. lt is
important
that
you
read, fully under-
stand,
and observe the following
safety
precautions
and warnings.
Re-read this operator's
manual and
the safety instructions
periodically.
THE
OPERATOR
Physical
Condition
Operator must be in
good
physical
condition and mental health
and
not
under the influence of any sub-
stance
(drugs,
alcohol, etc.) which
might impair vision,
dexterity or
judgement
[Fig.
3a].
Do not operate a lawn edger when
fatigued. Be alert - if
you get
tired
while operating the machine,
take a
break. Tiredness may result
in loss
of
control. Working with
any
power
tool can
be strenuous. lf
you
have
any
condition that
might be aggra-
vated by strenuous
work, check
with
your
doctor
before operating
the machine.
The Atom
Lawn Edger is equipped
with
vibration reducing
hand
grips
and
main handle
anti-vibration
mountings. These
are designed to
reduce
the transmission
of engine
vibrations to
the operator's hands.
Replace
hand
grips
and mountings
when
worn or damaged.
The rubber handles
do not
guaran-
tee that
you
will not sustain
whitefinger
disease or carpal
tunnel
syndrome. Therefore,
continual and
regular
users should
monitor
closely
the conditions of
their hands
and
fingers. lf any of
the above
symptoms
appear,
seek medical
advice
immediately.
Proper
Clothing
Clothing
must be sturdy
and snug-
fitting,
but allow complete
freedom
of
movement
/see
Fig. 41. Avoid
loose-fitting
jackets,
flared or
cuffed
pants,
or
anything
that could trip the
operator.
Wear
overalls or
long
pants
to
protect
your
legs.
Do not
wear shorts.
Use of
gloves
when
working
with the
lawn edger is
rec-
ommended.
Good
footing is
most
important.
Wear
sturdy shoes
with
nonslip soles.
Do not
wear san-
dals 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.
Replace
immediately
broken
or
cracked
blade covers
and
grass
debris deflector.
Never
operate a lawn edger
unless
wearing
goggles
or
properly
fitted
safety
glasses
with adequate
top
and
side
protection
which
comply
with ANZI 287.1
(or your
applicable
national
standard).
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.
SAFETY
PRECAUTIONS
(cont'd
rt
Uf
tl
&
FIG
'f
-n-
O
A
WARNING
Careless or improper use
of the
machine
may cause serious injury.
Have
your
Dealer show
you
how to
operate
your
lawn edger.
Safe use of
a Lawn Edger in-
volves
1. the
operator
2. the
lawn edger
3. the
use of the lawn edger
A
WARNING
The lawn
edger must not be oper-
ated by minors. Bystanders,
espe-
cially children
and animals, should
not be allowed in the
area where a
machine is in use
(at
least
15
me-
tres
away).
Never let the unit run
unattended
[Fig.
3b].
FIG 3a
FIG 3b
A
WARNING
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 bounce-
backs may occur
during lawn edg-
ing operations.
A
WARNING
Do not lend,
rent or sell this
machine without
this operator's
manual.
Be sure that
anyone us-
ing this unit
understands the in-
formation contained
in this man-
ual before
use.
A
WARNING
Prolonged use of any hand held
powered
machine exposing the op-
erator to vibrations
may
produce
whitefinger disease
(Raynaud's
phenomenon)
or carpal tunnel
syn-
drome. These conditions reduce
the hand's
ability to feel and
regu-
late temperature,
produce
numb-
ness and burning
sensations and
may cause nerve
and circulation
amage and tissue
necrosis.
SAFEW
PRECAUTIONS
(cont'd
Fueling
This
Atom unit uses an
oil-gasoline mixture for
fuel
(see
the chapter on
"Fuel").
@
FIG 5
SAFETY PRECAUTIONS
(cont'd)
Fueling instructions
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 and
move at least 10 feet
(3m)
from
the
fueling
spot before starting the en-
gine.
Wipe off any spilled fuel be-
fore starting
your
lawn edger and
check for leakage.
Always tighten fuel filler cap se-
curely after fueling.
Starting
You should
always inspect
your
unit
before
starting
it. Make sure
the
controls
and safety devices
are
working
properly.
As the throttle trigger is
fitted with a
% throttle lock to
assist in starting
the engine, never
leave lz throttle
lock
on other
than for starting.
For
specific starting instructions,
see the appropriate section of
this
operators manual.
Place the ma-
chine on
firm
ground
or other solid
surface in an open area. Maintain
good
balance and secure footing.
Failure to follow this
procedure
may
result
in
injury
to hand or fingers or
may damage the starter mecha-
nism.
Working instructions
and impor-
tant adjustments
Never
operate
your
machine if it is
damaged, improperly
adjusted or
not completely
and securely as-
sembled.
At correct idle
speed the
blade
should not
turn. Do not use
lawn
edger with
incorrect idle speed
adjustment.
Adjust the speed
your-
self
(Page
75)
setting Carburettor
ldle Speed
Adjustment,
or by a
service
dealer.
MAINTENANCE,
REPAIR
AND
STORING
Use
only original
Atom replace-
ment
parts
for maintenance
and
repair. Use
of
parts
manufactured
by others
will void
warranty, and/or
may
cause
serious or fatal injury.
Follow the
maintenance instruc-
tions in the
appropriate section of
this
manual. Any repairs should
be
carried out by
an authorised service
dealer.
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.
Remember that the risk of forest
or
grass
fires is
greater
in
hot weather.
A
WARNING
Never touch a hot muffler or burn
will result.
Keep
spark
plug
and wire connec-
tion tight
and
clean.
Spark
plug
electrode
gap
should be checked
with a feeler
gauge
at least every
50 operating
hours and reset if nec-
essary. Fit
a new spark
plug
if elec-
trodes
are badly
pitted
or fouled
with carbon build up.
Store lawn
edger in a dry, high or
locked
location
place
and out of
reach
of children.
A
WARNING
Start and
operate
your
unit
out-
doors in a ventilated
area.
A
WARNING
Gasoline
(petrol)
is an extremely
flammable
and explosive fuel. Use
extreme caution when handling
gasoline
or fuel mix. Do not smoke
or bring any
fire or flame near the
fuel.
WARNING
The lawn 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 feet
(5m)
away
during use. Re-
place
immediately
any worn or broken debris deflector shield or blade
cover. lf approached, release
throt-
tle trigger to immediately
de-
accelerate the engine.
A
WARNING
Always stop
the motor and
make
sure that
the blade
is stopped be-
fore
adjusting
blade height, doing
any maintenance
or repair
work,
cleaning
the unit or
removing
grass
or debris
from the blade.
WARNING
Always allow engine to cool before
refuelling. 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.
A
WARNING
When
you pull
starter
grip,
do not
p
starter rope around
your
hand.
Do
not allow
grip
to snap back, but
guide
starter rope slowly back to
permit
rope to rewind
properly.
l\
wARNTNG
A worn or
damaged
muffler is a fire
hazard
and may cause
loss of hear-
ing. 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
dam-
aged,
or has
been removed. In
order
to reduce
the risk of fire, do
not
modify or
remove any
part
of
the
muffler.
7
A
WARNING
Never store
the machine with
gaso-
line inside
a building where fumes
may reach
an open flame or spark,
e.g.
gas
or oil fired heater appli-
ance.
electric
motor
etc.
I
SAFETY
PRECAUTIONS
(cont'd)
Before storing
for a longer
period,
always empty
the fueltank.
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.
Working Conditions
When
working with the lawn
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 lawn
edger with
one hand as loss of
control may result
in serious or fatal
injury.
Make sure
the handle
grips
are in
good
condition and free of
mois-
ture,
pitch,
oil or
grease.Use
both
hands,
one on each handle, to op-
erate
and control the lawn edger.
Do not overreach.
Keep
proper
footing
& balance at alltimes.
A
WARNING
Do not touch hot motor during and
immediately after use as
you
may
burn
yourself.
Fuel Mix
Prepare
the mixture of
a brand-
name
unleaded
gasoline
and
qual-
ity two-stroke
(2
cycle) engine
oil in
an
approved safety-type
canister.
Pour in
the oil first
(eg.
Castrol 2T
two stroke
oil or equivalent)
and
then add
gasoline.
Do not
use BIA
or
TCW
(two
cycle
water cooled)
mix oils.
Well
known brands of
2 stroke
(2
cycle) engine
oil are recommended.
They are formulated
specially
for 2
cycle engines
and
guarantees
a
long
engine life.
For
the
sake
of
your
health
and the
environment
unleaded
gasoline
is
recommended.
A
WARNING
Pressure
may build
up in
the canis-
ter. Remove
fuel
cap slowly
to
avoid
injury from
fuel
spray.
Re-
place
fuel cap securely.
Clean
the fuel
tank and
can
from time to time.
Take
care when handling
gasoline.
Avoid direct
contact
with the
skin
and avoid
inhaling
fuelvaPor.
Change
fuel
pickup
filter
at least
once
every
year
or more
frequently
depending
on use.
Before fueling,
clean
the filler
cap
and the
area around
it to
ensure
that no dirt
falls into
the tank. Never
mix
the
gasoline
and
oil in the
fuel
tank
of the engine.
Always
allow engine
to cool
before
refuelling.
Accidental
spillage
of
gasoline
over a hot
engine
could
cause fire
or explosion
to occur.See
Page 6 Safety
Precautions
Fu-
elling.
Fill or
add fuel to
the tank
only
when the
edger is
in a horizontal
position
as shown
(Fig.
7). ALLOW
engine to
cool down
for at least 5
minutes
before adding
fuel.
FIG 6
FUEL
MIX
AND FUELING
ASSEMBLING THE LAWN EDGER
Fit cross
brace to handles with brace to touch
ground.
Use 4 screws
and 4
locknuts
provided
in
packet
[see
A].
Fit handle assembly
to edger. Insert
150mm
(6")
bolt
(B).
Screw large 3 wing nut
(C)
so
that bolt end is
approximately flush
(level)
with face of centre boss of large
wing nut. This
allows handle
"platform"
to
"float"
without vibration. DO
NOT OVER-
TIGHTEN
BOLT.
Fit throttle to right
hand handle
[see
D]. Clip
in
throttle cable/ignition
switch
wire with 2 cable clamps attached to handle
[see
El
A
WARNING
Electrical
shock. Never touch
electrical
wires or components
while
the engine is running. They
are sources of high
voltage & can
give you
an electrical shock. Re-
place
immediately any faulty high
tension lead or spark
plug
cap.
25:lMixChart
Gasoline L 1
z
3
4
2-cvcle
oil ML 4 80
120 160 200
Recommended Mixing
Ratio
Term
Gasoline
:Oil
Up
to 20 hours use
20 .1
After 20 hours use
25 .1
STARTING & STOPPING
INSTRUCTIONS
STARTING & STOPPING
INSTRUCTIONS
(cont'd
Inferior
quality gasolines
or oils
may
damage
the engine, sealing
rings,
fuel
lines or fuel tank, and
6sgulsttor.
Also causes rough and
irregular
running and starting.
Only
mix
sufficient fuel for a few
weeks
work - store in approved
safety-lype
canisters.
Pour
oil in
first.
Screw
fhe
fuel can cap on tightlY
and
thdroughly
shake the mixture
before
fueling
your
machine.
FIG 7
1. Pla6e
lawn edger on
ground
in
horizontal
position
lsee
Fig. 91.
gs
sure the ignition switch is
'g$".
Pull switch toward opera-
1s1
to
turn
ON.
Switch located
on
fight
side of trigger
fsee
Fig.
81.
2.
Set trigger throttle to 112
THROTTLE LOCK by
placing
hand
on handle
grip
and
push-
ing down safety interlock
with
thumb,
and
pulling
up and hold-
ing trigger
with finger. Then
move thumb to hold in 112
throttle button, release
trigger,
then release
1/2 throttle button.
Trigger
throttle is then engaged
at
half speed for starting
(only).
'l'
It
I
FIG 9a
3. COLD START:
Move choke
lever up to start
position.
Press
and release
primer
3 or 4 times
untilthe fuelflows
into the clear
tube. Place
one foot on the
cross
brace.
FIG 9b
Make sure
you
have a firm
footing. Hold down motor with
left hand and with right hand
pull
the starter
grip
slowly until
you
feel
it
engage - and then
give
it a fast
pull
[Fig.
9]. Do not
pull
out starler rope more than
26"
(65cm)
-
it might break.
Stand between handles to start.
Do not let starter
grip
snap
back.
Guide it back slowly so
that the starter rope can rewind
slowly.
PULL THE STARTER ROPE
BRISKLY
until
you
hear the
engine
sound like it wants to
run or runs then stops
(normally
1-5
pulls).
Open choke
gradually
to allow
motor to run.
lf it stops,
re-start and allow the
engine
to run for a few more
seconds on lz lhrollle lock
(engine
runs fast). Pull throttle
trigger
(releases
%
throttle
lock), & allow throttle trigger to
slowly
pull
back to engine idle.
Note: ln warm temperature or
hot motor fhis sfep may not be
necessary.
HOT OR WARM START:
(Engine
has already been
started and warmed up). Switch
ignition "ON". Set 1/2
THROT-
TLE
LOCK
[Fig.
8]. Pullstarter
until
motor runs and let it run for
a few seconds before releasing
% THROTTLE LOCK. This
aI.
lows cooler fuel to enter the
carburettor.
Allow throttle trig-
ger
to slowly
pull
back to idle.
Note: A built-in automatic centrifugal clutch disengages the
blade
from rotating at engine
idle speed.
The clutch engages
the blade
when the engine
speed is increased.
Throttle
trigger
(engine
accel-
erator control)
is operated by
pushing
down interlock with
thumb
and
pulling
on trigger
[Fis
8].
FLOODED ENGINE:
(Engine
will not staft).
lf smoke or fuel
comes from
exhaust and en-
gine
will not start.
i. Check
that ignition switch is
"ON',
CHOKE LEVER is on
RUN
position,
throttle is set
on HALF THROTTLE
LOCK
position.
ii. Pull
starter rope up to
10
times to
clear engine of fuel
so it can start.
iii. lf
engine has excessive
fuel
that cannot be cleared
by i &
ii
above,
remove spark
plug
from
engine and from spark
plug
terminal,
crank engine
to clear excess
fuel, wipe
and
dry spark
plug
of all
fuel, re-install
spark
plug
and terminal, and restart
as
above.
IMPORTANT:
After t hours
use tighten
all screws
(especially
9 screws
around
gear
case), check
every 20
hours use.
10.
To stop motor
push
switch slide
on throttle trigger
side forward.
8.
il
I
il
I
4.
5.
1.
7.
A
WARNING
The blade
will rotate when engine
is
idling
fast
(eg.
on
starting
(1/2
throt-
tle lock]
or when motor is cold).
TO
STOP MOTOR move
ignition
switch
up into the
"OFF"
position
fpage
10 Fig.
8].
lqxtrtoN
,r
swr'cH.{
I
l0
ll
Anti-Vibration
(AV)
Adjustment
Handle nut
can
be
tightened
to
mark on knob to obtain best AV
affect to reduce handle vibrations.
During
break-in
period
A factory new machine should not
be run at high revs
(full
throttle)
without any load. This avoids unnecessary wear during the break-in
period.
As all
moving
parts
have to
bed in during break-in
period,
frictional resistances in the engine are
greater
during this
period.
Engine
develops its maximum
power
after
about 5 to 15 tank fillings.
When using, increase engine revs
as load is increased on lawn edger.
When lawn edger is under
full load,
full throttle is to be
used.
After finishing work
Storing for short
period
-
keep
the unit in a dry
place
until
you
need it again. Do not
store where
naked flame or electrical
machinery
is operating.
Storing for a long
period
-
drain
the
fuel tank, run engine until car-
burettor is
dry.
EDGING
OF
LAWN
The edger is very easy and
simple to use, and most operators can immediately
adapt to
its unique
use.
For some
people
it may take a
few edgings to become accustomed to its operation.
Thoroughly inspect
the area
where the edger is to be used
and remove all stones, sticks,
wires and other foreign objects.
1.
2.
OPERATING
INSTRUCTIONS
3. Adjust blade
height. With a new
blade try second hole closest to
oPerator'
HETcHTADJUsTMENT
FIG
10
With both arms fully extended
downwards
(see
illustration
on
front cover)
hold both handle
grips
firmly.
With the engine
running
pull
the throttle trigger
to increase
engine speed.
lf blade is not deep enough,
or
is digging too
deep, adjust
blade height or
slightly raise or
lower
handles to suit depth
re-
quired
[Fig.
11]. However
it is
always more comfortable
and
relaxed to have arms
fully ex-
tended
downwards.
As
cutting
action begins,
push
the lawn edger forward so
that
the blade can cut the edge
as
you
move forward.
OPERATING
INSTRUCTIONS
(cont'd)
7.
Continue at a moderate
pace
10. Clutch.
The lawn edger
is
equipped
with a centrifugal
clutch. DO
NOT run edger at
low
speeds or if blade
jammed
at high speeds
as clutch
shoes will
prematurely
wear
out and cause damage.
FIG 12
l\
wARNTNG
Only operate unit when moving forward. DO NOT operate
walking
backwards as
you
may trip, fall and
injure
yourself.
A
WARNING
To avoid
personal
injury, never
carry the
edger while the engine is
running. Stay clear of the rotating
blade.
Stop the engine
prior
to mak-
ing adjustments
and
cleaning.
l3
8.
until
you
are familiar with the
controls
and the handling of the
lawn edger.
lf blade
jams
or stops in
ground,
lower handles,
or
pull
back unit and recommence.
Control engine and cutting
speed to suit work
being done.
When cutting efficiently,
engine
speed
should be full throttle
under load.
SidewaysTilting
: Lower either
left
or right
hand to achieve
9.
4.
5.
6.
angle
cutting.
To
edge
deePer
lift
handles
FIG
11
t2
MAINTENANCE
the filter to spread
the oil and
to
remove
excess oil
[Fig.
16].
Reinstall the
filter air filter
cover.
Note: lf
the unit is
operated
with
a dry or dirty
filter or with-
out
the air filter
and/or carburet-
tor/air filter cover,
you
will void
wananty.
Note: Fuel
Filter. When
the mo-
tor runs
short of fuel
supply
and
the tank has
gasoline
in
it,
check the
fuel filter for
block-
age.
CARBURETTOR
ADJUST-
MENT
This unit
is equipped
with a
diaphragm-type
slide
carburetor
that
has been carefully
calibrated
at
the factory.
In most cases
no fur-
ther
adjustment will
be required.
The condition
of the
air filter is
important to
the operation
of the
edger.
A dirty air
filter will restrict
the air flow, which
upsets the
fuel-
air mixture in
the carburettor.
The
resulting
symptoms are
often
mis-
taken
for
an
out-of-adjustment
car-
burettor.
Therefore. check
the con-
dition of
the air filter
before adjust-
ing
the carburettor.
lf the following
conditions
are expe-
rienced,
it may
be necessary
to
adjust the carburettor:
o
The motor
will not idle.
.
The
motor hesitates or stalls on
acceleration.
.
The loss of motor
power
that is
not corrected
by cleaning the
air filter
and muffler.
AIR FILTER
MAINTENANCE
Note: Clean and re-oil the
air filter
Every 5 hours of operation
or daily.
The air filter is
one of the most
important areas
to maintain. lf it is
not maintained,
you
will void
the
warranty.
Before cleaning,
make
sure
the unit is turned off.
FIG 16
Wash the
filter in detergent
and
waler
[Fig.
75l. Rinse
the filter
thoroughly
and allow
it to dry.
Apply enough
clean two-stroke
oil or SAE
30 oil to saturate
the
filter when
squeezed.
Squeeze
1.
2.
l4
MAINTENANCE
(cont'd)
.
The
motor
operates in an er-
ratic
or
fuel-rich condition
(indicated
by
excessive ex-
haust
smoke from
the muffler).
Note: Careless adjustments
can seriously
damage
the car-
bureftor
and/or motor.
ADJUSTING THE CARBURETTOR
1.
Clean air and fuel filter
if
it is
dirty. Refer to Air Filter Maintenance
(Page
74). Throttle trig-
ger
to be in idle
position.
Fuel Filter: When the motor
runs short
of fuel supply and
the tank has
gasoline
in it,
clean the fuel filter for blockage
[Fis.
17]
2. Throttle Cable: The
normal
play
is 1-2mm
when measured
at the carburetor
side. Re-
adjust with
the
cable
adjustor
as required.
3. Engine ldling
Setting: To increase motor idle speed, turn
clockwise ldle screw
(
) [Fig.
191 lo decrease
motor idle
speed, turn counter(anti)clockwise.
Note:
Edger
blade not to rotate
when motor is idling.
Note: Throttle cable wire is not
to be
pulled
tight
(against
trig-
ger
throttle). Trigger.to have
small initial movement before it
pulls
cable and carby throttle
lever.
Note: Forcing the high speed
mixture screw
(B) (with
screwdriver) will damage the screw
tip and the seat in the carburettor body.
Close high speed
jet
and open 2.5 turns ! 1/2 turn
[Fis
1e].
Set 1/2 throttle lock
[Fig.
I
page
70l. Start the motor and let it
run for
a few
seconds-
Release 1/2 throttle lock and let
the
motor idle.
lf the
motor
stops, turn the idle screw
(A)
clockwise 1/8 turn at a time
(as
required) until the motor
idles. lf idle speed it too high
turn
idle screw
(A)
counter
(anti)-clockwise.
3.
4.
FIG 17
MAINTENANCE
(cont'd)
5. High Speed Screw Mixture
Adjustment:
The factory
presets
the high
speed mixture screw
(B)
at
2.112 t 1/2 turns out from the
closed
position.
Your unit
should
perform
well at this set-
ting. lf additional adjustment
of
the high speed mixture is
re-
quired,
contact
your
local au-
thorized service dealer.
Note: The edger blade
should
not
rotate when the motor idles.
Note: lf the carburettor adjustments
do not help the unit to
run
properly,
contact
your
au-
thorized service dealer.
Recommended idle speed is 3000 to
3200 RPM.
BLADE REPLACEMENT
1. Stop motor. Clean area around
dust cover and
pry
out with
screwdriver
[Fig.20].
2. Through dust cover hole
place
14mm single socket spanner.
On blade end
of shaft
place
17mm spanner on blade nut
[Fig.
21].
3.
Unscrew nut counter(anti)clockwise
(normal
right
hand
thread).
4. Remove one smallwasher,
one
large washer and blade.
Before
fitting blade and
washers, clean
all
grit
and
grease.
Assemble
these
parts
clean and dry.
Fit
large washer, new blade
with
flat blade on inside,
large
washer, one small
washer, and
nul
[Fig.23l.
Tighten nut.
A
WARNING
Use only
Atom blades
(P/N
43105).
Other
blades have larger
size holes
(1/2)
which will cause
out-of-
balance
vibrations
which will dam-
age
unit and
MUST NOT BE
FIT-
TED.
-
-
scnewDavea
LEVER3
OFF
DUST
COVER
ETPOSINO
lilllt| HEX
HEAD
FOR
U}|SCRE!4NO
BLAOE
IIUT
FIG 21
A
WARNING
Do not run
motor without
blade
tightened to
blade shaft
as
gear
damage
will occur.
l6
l7
MAINTENANCE
(cont'd)
5. Clean
plastic
dust cap and
housing,
press
back
by
gently
tapping into
place.
Clean
inside
blade cover of any
built up dirt.
CHECK
THE SPARK
PLUG
lf motor is down
on
power,
difficult
to start
or runs
poorly
at
idling
speed, check
the spark
plug.
.
Allow motor
to
cool down.
.
Remove
spark
plug.
o
Clean
dirty
spark
plug.
.
Check electrode
gap
-
it should
be 0.02"
(0.5mm).
.
Rectify
faults which
have
caused
fouling
of spark
plug.
Possible faults
include:
a
a
a
a
I ncorrect
carburettor
setting
Too much
oil or wrong
tyPe
of
oil in fuel
mix
Old
fuel mix
Dirty air
filter.
o
Unfavourable
running
condi-
tions
(eg.
operating
at
Part
load).
Do not
clean the
spark
plug
in an
abrasive
grit
spark
plug
cleaner,
as
expensive
damage to
the mo-
tor
could occur
through
loose
grit
damaging
chrome
in
cylinder
bore.
Fit a new spark
plug
after
approxi-
mately 100
operating hours
or ear-
lier
if electrodes
are badly
eroded
(recommended
type
Champion
RCJ-]Y).
CHECKING EXHAUST
MUFFLER
Tighten exhaust
screws.
lf exhaust
gasket
is leaking,
replace
gasket.
if
the motor
is down
on
power
check
the muffler.
Allow
motor
to
cool
down.
Remove
and scrape
out
ex-
cess
carbon on
both inlet
and
exit
exhaust
or have
this
done by
a
service
dealer.
FIG22
LOOSE BLADE
As in 1 and 2 of Blade
Replacement
and tighten
nut clockwise.
LUBRICATION
OF GEARS
The oil in the
gear
case should
be
topped up according
to use
by
adding light free flowing
lithium-
based
grease
(Castrol
EPO)
through fill hole
in casing
[Fig.
20].
Use a suitable
filling
gun
or
squeeze oil
pack
(P/N
43227).
Re-
move bleed screw
to allow
grease
to eject indicating
gear
box is 3/4
full. Refit bleed screw and
push
in
3-4 more
pumps.
Refit fill bolt
(tighten
gently).
A
WARNING
Over
tightening will cause
plastic
thread
to strip.
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