McCulloch MAC GB 275 User manual

INSTRUCTION MANUAL
IMPORTANT INFORMATION: Please read these instructions carefully and make
sure you understand them before using this unit. Retain these instructions for future
reference.
115276926 Rev. 2 2/22/10 BRW
MANUEL D’INSTRUCTIONS
RENSEIGNEMENTS IMPORTANTS: Avant d’utiliser cet appareil, veuillez lire
atentivement les instructions et assurez--vous de les avoir comprises. Conservez
les instructions pour référence ultérieure.
BETRIEBSANWEISUNG
WICHTIGE INFORMATION: Lesen Sie diese Hinweise zur Handhabung des
Geräts aufmerksam durch. Verwenden Sie es erst, wenn Sie sicher sind, daß Sie
alle Anweisungen verstanden haben und gut aufbewahren.
MANUAL DE INSTRUCCIONES
INFORMACIÓN IMPORTANTE: Lea atentamente las instrucciones y
asegúrese de entenderlas antes de utilizar esta aparato. Conserve las instruc-
ciones para la referencia en el futuro.
GB
FR
DE
ES
LIBRETTO D’ISTRUZIONI
INFORMAZIONI IMPORTANTI: Siete pregati di leggere attentamente questo
istruzioni e prendere dimestichezza con il prodotto prima di usario. Mantenga
queste istruzioni per riferimento futuro.
IT
NL
HANDLEIDING
BELANGRIJKE IMPORTANTS: Lees deze instructies zorgvuldig en wees er
zeker van dat uze begrijpt alvorens de blower te gebrulken en bewaar ze voor
toekomstige raadpleging.

-- 2 --
KEY TO SYMBOLS
WARNING: This blower
can be dangerous! Careless
or improper use can
cause serious or even fatal
injury.
Approved protective goggles
or visor, ear protection, and
face mask in dusty environments
must be worn.
Thebloweroperatormustmakesure
that no bystanders or animals come
nearer than 15 meters.
Whenever several operators are
working in the same work area, they
should maintain a safe distance of at
least 15 meters from one another.
Read and understand the
instruction manual before
using the blower.
Sound pressure
level at 7,5 meters Sound power level
Use unleaded or quality
leaded petrol and two
stroke oil.
WARNING: The blower may throw
objects at high velocity that can
ricochet and hit the operator. This
may cause serious eye damage.
Always wear approved,
protective gloves.
SAFETY RULES
WARNING: Failure to follow all
Safety Rules and Precautions can result in
serious injury.
KNOW YOUR UNIT
SRead your instruction manual carefully until
you completely understand and can follow all
warnings and safety rules before operating
the unit.
DRestrict unit to users who understand and will
follow all warnings and safety rules in this
manual.
WARNING: Inspect area before start-
ing unit. Remove all debris and hard objects
such as rocks, glass, wire, etc. that can rico-
chet, be thrown, or otherwise cause injury or
damage during operation.
Use your unit as a blower for:
DSweeping debris or grass clippings from
driveways, sidewalks, patios, etc.
DBlowing grass clippings, straw, or leaves into
piles, around joints, or between bricks.
PLAN AHEAD
WARNING: This machine produces
an electromagnetic field during operation. Under
some circumstances, this field may interfere
with active or passive medical implants. To re-
duce the risk of serious or fatal injury, we recom-
mend persons with medical implants to consult
their physician and the medical implant
manufacturer before operating this machine.
DAlways wear eye and ear protection when
operating, servicing, or performing
maintenance on unit. Wearing eye protection
will help to prevent rocks or debris from being
blown or ricocheting into eyes and face which
can result in blindness and/or serious injury.
Eye protection should be marked Z87.
DAlways wear foot protection. Do not go
barefoot or wear sandals.
DAlways wear respirator or face mask when
working with unit in dusty environments.
DSecure hair above shoulder length. Secure or
remove jewelry, loose clothing, or clothing
with loosely hanging straps, ties, tassels, etc.
They can be caught in moving parts.
DDo not operate unit when you are tired, ill,
upset, or if you are under the influence of
alcohol, drugs, or medication.
DKeep children, bystanders, and animals away
from work area a minimum of 15 meters when
starting or operating unit. Do not point blower
nozzle in the direction of people or pets.
HANDLE FUEL WITH CAUTION
DEliminate all sources of sparks or flame
(including smoking, open flames, or work that
can cause sparks) in the areas where fuel is
mixed, poured, or stored.
DMix and pour fuel in an outdoor area; store
fuel in a cool, dry, well ventilated place; use an
approved, marked container for all fuel
purposes.
DDo not smoke while handling fuel or while
operating the unit.

-- 3 --
DMake sure the unit is properly assembled and
in good operating condition.
DDo not fill fuel tank while engine is hot or
running.
DAvoid spilling fuel or oil. Wipe up fuel spills
before starting engine.
DMove at least 3 meters away from fuel and
fueling site before starting engine.
DAlways store petrol in a container approved
for flammable liquids.
OPERATE YOUR UNIT SAFELY
DThis garden blower is only designed for
blowing away leaves and other debris on the
ground.
DInspect unit before each use for worn, loose,
missing, or damaged parts. Do not use until
unit is in proper working order.
DKeep outside surfaces free of oil and fuel.
DNever start or run engine inside a closed
room or building. Breathing exhaust fumes
can kill.
DMufflers fitted with catalytic converters get
very hot during use and remain so for some
time after stopping. This also applies at idle
speed. Contact can result in burns to the skin.
Remember the risk of fire!
DTo avoid static electricity shock, do not wear
rubber gloves or any other insulated gloves
while operating unit.
DDo not set unit on any surface except a clean,
hard area while engine is running. Debris
such as gravel, sand, dust, grass, etc. could
be picked up by the air intake and thrown out
through discharge opening, damaging unit,
property, or causing serious injury to
bystanders or operator.
DAvoid dangerous environments. Do not use in
unventilated areas or where explosive vapors
or carbon monoxide build up could be
present.
DDo not overreach or use from unstable
surfaces such as ladders, trees, steep
slopes, rooftops, etc. Keep firm footing and
balance at all times.
DNever place objects inside the blower tube;
always direct the blowing debris away from
people, animals, glass, and solid objects such
as trees, automobiles, walls, etc. The force of
air can cause rocks, dirt, or sticks to be
thrown or to ricochet which can hurt people or
animals, break glass, or cause other damage.
DNever run unit without the proper equipment
attached. Always install blower tube.
DCheck air intake opening and blower tube
frequently, always with engine stopped and
spark plug disconnected. Keep vents and
discharge tube free of debris which can
accumulate and restrict proper air flow.
DNever place any object in the air intake
opening as this could restrict proper air flow
and cause damage to the unit.
DNever use for spreading chemicals, fertilizers,
or other substances which may contain toxic
materials.
DTo avoid spreading fire, do not use near leaf or
brush fires, fireplaces, barbecue pits,
ashtrays, etc.
DUse only for jobs explained in this manual.
MAINTAIN YOUR UNIT PROPERLY
DHave all maintenance other than the
recommended procedures described in the
instruction manual performed by an
authorized service dealer.
DDisconnect spark plug before performing
maintenance except for carburetor
adjustments.
DUse only recommended McCulloch
replacement parts; use of any other parts
may void your warranty and cause damage to
your unit.
DEmpty fuel tank before storing the unit. Use
up fuel left in carburetor by starting engine and
letting it run until it stops.
DDo not use any accessory or attachment
other than those recommended by
manufacturer for use with your unit.
DDo not store the unit or fuel in a closed area
where fuel vapors can reach sparks or an
open flame from hot water heaters, electric
motors or switches, furnaces, etc.
DStore in a dry area out of reach of children.
DSecure the machine during transport.
SAFETY NOTICE: Exposure to vibrations
through prolonged use of gasoline powered
hand tools could cause blood vessel or nerve
damage in the fingers, hands, and joints of peo-
ple prone to circulation disorders or abnormal
swelling. Prolonged use in cold weather has
been linked to blood vessel damage in other-
wise healthy people. If symptoms occur such as
numbness, pain, loss of strength, change in skin
color or texture, or loss of feeling in the fingers,
hands, or joints, discontinue the use of this tool
and seek medical attention. An antivibration
system does not guarantee the avoidance of
these problems. Users who operate power tools
on a continual and regular basis must monitor
closely their physical condition and the condition
of this tool.

-- 4 --
WHAT IS WHAT?
7
1. Throttle lever 5. Fuel cap
2. Primer bulb 6. Blower tube
3. Choke lever 7. Instruction manual
4. Starter handle
WHAT IS WHAT?
6
1
2
3
5
4
ASSEMBLY
CARTON CONTENTS
Check carton contents against the following list.
SBlower
SBlower tube
NOTE: It is normal for the fuel filter to rattle in
the empty fuel tank.
ASSEMBLY
WARNING: If received assembled,
repeat all steps to ensure your unit is properly
assembled and all fasteners are secure. Fol-
low all safety information in the manual and on
the unit.
DNo tools are required for assembly.
BLOWER TUBE
DPush the blower tube into the blower outlet
until it snaps into place.
Blower Tube
Blower Outlet

-- 5 --
OPERATION
OPERATING POSITION
Eye Protection
OPERATING
POSITION Hearing Protection
OPERATING TIPS
STo reduce the risk of hearing loss
associated with sound level(s), hearing
protection is required.
STo reduce the risk of injury associated with
contacting rotating parts, stop the engine be-
fore installing or removing tube. Do not oper-
ate without guard(s) in place.
SOperate power equipment only at reasonable
hours--not early in the morning or late at night
when people might be disturbed. Comply with
times listed in local ordinances. Usual recom-
mendations are 9:00 a.m. to 5:00 p.m.,
Monday though Saturday.
STo reduce noise levels, limit the number of
pieces of equipment used at any one time.
STo reduce noise levels, operate power
blowers at the lowest possible throttle
speed to do the job.
SUse rakes and brooms to loosen debris be-
fore blowing.
SIn dusty conditions, slightly dampen sur-
faces or use a mister attachment when wa-
ter is available.
SConserve water by using power blowers
instead of hoses for many lawn and garden
applications, including areas such as gutters,
screens, patios, grills, porches, and gardens.
SWatch out for children, pets, open windows,
or freshly washed cars. Blow debris away
safely.
SUse the full blower nozzle extension so the
air stream can work close to the ground.
SAfter using blowers and other equipment,
CLEAN UP! Dispose of debris in trash re-
ceptacles.
BEFORE STARTING ENGINE
WARNING: Be sure to read the fuel
information in the safety rules before you
begin. If you do not understand the safety
rules, do not attempt to fuel your unit. Contact
an authorized service dealer.
FUELING ENGINE
WARNING: Remove fuel cap slowly
when refueling.
This engine is certified to operate on
unleaded petrol. Before operation, petrol
must be mixed with a good quality 2-cycle
air-cooled engine oil. We recommend
McCulloch brand oil mixed at a ratio of 40:1
(2.5%). A 40:1 ratio is obtained by mixing 5
liters of unleaded petrol with 0,125 liter of oil.
When mixing fuel, follow the instructions
printed on the container. Always read and
follow the safety rules beforefueling your unit.
IMPORTANT
Experience indicates that alcohol blended
fuels (called gasohol or using ethanol or
methanol) can attract moisture which leads to
separation and formation of acids during stor-
age. Acidic gas can damage the fuel system
of an engine while in storage. To avoid engine
problems, empty the fuel system before stor-
age for 30 days or longer. Drain the gas tank,
start the engine and let it run untilthe fuel lines
and carburetor are empty. Use fresh fuel next
season. Never use engine or carburetor
cleaner products in the fuel tank or permanent
damage may occur.
HOW TO STOP YOUR ENGINE
DTo stop the engine, move the throttle lever
to the STOP position and hold until en-
gine stops running.
BEFORE STARTING THE ENGINE
WARNING: YouMUSTmakesurethe
tube are secure before using the unit.
DFuel engine. Move at least 3 meters away
from the fueling site.
DHold the unit in the starting position as
shown. Make sure the blower end is di-
rected away from people, animals, glass,
and solid objects.
STARTING
POSITION
WARNING: When starting engine,
hold the unit as illustrated. Do not set unit on
any surface except a clean, hard area when
starting engine or while engine is running. De-
bris such as gravel, sand, dust, grass, etc.
could be picked up by the air intake and
thrown out through the discharge opening,
damaging the unit or property, or causing seri-
ous injury to bystanders or the operator.

-- 6 --
STARTING A COLD ENGINE (or a
warm engine after running out of fuel)
1. Slowly press the primer bulb 6 times.
2. Move throttle lever to the START position.
3. Move choke lever to the FULL CHOKE
position.
Choke
Lever
Fuel Cap
Throttle Lever
Primer Bulb
4. Pull starter rope sharply until engine at-
tempts to run, but no more than 5 pulls.
5. Move choke lever to HALF CHOKE posi-
tion. Pull starter rope sharply until engine
runs.
NOTE: If engine has not started after 5 pulls,
repeat all of the above steps.
6. After a 10 second warm-up, move the
choke lever to the RUN position.
NOTE: The engine speed can be adjusted
by moving the throttle lever to the left for low
speed or right for high speed.
Throttle Lever
7. To stop engine, move the throttle lever to
the STOP position and hold until engine
stops running.
NOTE: If engine does not stop, move choke
lever to FULL CHOKE.
STARTING A WARM ENGINE
1. Move throttle lever to the START position.
2. Move the choke lever to the HALF
CHOKE position.
3. Pull starter handle sharply until engine
runs.
NOTE: If engine does not run after 5 pulls, re-
peat STARTING A COLD ENGINE procedure.
4. After a 10 second warm-up, move the
choke lever to the RUN position.
DIFFICULT STARTING (or starting a
flooded engine)
Flooded engines can be started by placing the
choke lever in the RUN position and the throttle
lever in the START position; then, pull the start-
er handle sharply to clear the engine of excess
fuel. This could require pulling the starter handle
many times depending on how badly the unit is
flooded. If the unit still does not start, refer to
TROUBLESHOOTING TABLE.
MAINTENANCE
WARNING: Avoid touching muffler
unless engine and muffler are cold. A hot muf-
fler can cause serious burns.
WARNING: Disconnect the spark
plug before performing maintenance except
for carburetor adjustments.
CHECK FOR LOOSE
FASTENERS AND PARTS
SSpark Plug Boot
SAir Filter
SHousing Screws
CHECK FOR DAMAGED OR
WORN PARTS
Contact an authorized service dealer for re-
placement of damaged or worn parts.
SThrottle Lever. Ensure throttle lever func-
tions properly by moving thethrottle lever to
the STOP position and holding until en-
gine stops running; then restart engine and
continue.
SFuel Tank. Discontinue use of unit if fuel
tank is damaged or leaks.
INSPECT AND CLEAN UNIT & LABELS
SAfter each use, inspect complete unit for
loose or damaged parts. Clean the unit and
decals using a damp cloth with a mild deter-
gent.
SWipe off unit with a clean dry cloth.
CLEAN AIR FILTER
Air Filter
Air Filter Cover
Button

-- 7 --
A dirty air filter decreases engine perform-
ance and increases fuel consumption and
harmful emissions. Always clean after every
5 hours of operation or yearly, whichever
comes first.
1. Clean the cover and the area around it to
keep debris from falling into the carburetor
chamber when the cover is removed.
2. Press button to open air filter cover. Re-
move air filter.
NOTE: Do not clean filter in gasoline or other
flammable solvent. Doing so can create a fire
hazard or produce harmful evaporative emis-
sions.
3. Wash the filter in soap and water.
4. Allow filter to dry.
5. Apply a few drops of oil to the filter;
squeeze filter to distribute oil.
6. Replace parts.
REPLACE SPARK PLUG
Replace spark plug each year to ensure the
engine starts easier and runs better. Set
spark plug gap at 0.6 mm. Ignition timing is
fixed, nonadjustable.
1. Twist, then pull off spark plug boot.
2. Remove spark plug from cylinder and dis-
card.
3. Replace with Champion RCJ-6Y spark
plug and tighten securely with a 19 mm
socket wrench.
4. Reinstall the spark plug boot.
CARBURETOR ADJUSTMENTS
There is no screw for idle adjustment on your
blower. The throttle lever is used to control en-
gine speed. The engine speed can be ad-
justed by moving the throttle lever to the left
for low speed or right for high speed. If your
engine will not run properly or you require fur-
ther assistance, contact an authorized ser-
vice dealer.
STORAGE
WARNING: Prepare unit for storage at
end of season or if it will not be used for 30 days
or more.
SAllow engine to cool, and secure the unit be-
fore storing or transporting.
SStore unit and fuel in a well ventilated area
where fuel vapors cannot reach sparks or
open flames from water heaters, electric mo-
tors or switches, furnaces, etc.
SStore unit with all guards in place. Position unit
so that any sharp object cannot accidentally
cause injury.
SStore unit and fuel well out of the reach of chil-
dren.
EXTERNAL SURFACES
SIf your unit is to be stored for a period of time,
clean it thoroughly before storage. Store in a
clean dry area.
SLightly oil external metal surfaces.
INTERNAL ENGINE
SRemove spark plug and pour 1 teaspoon of
2-cycle engine oil (air cooled) through the
spark plug opening. Slowly pull the starter
rope 8 to 10 times to distribute oil.
SReplace spark plug with new one of recom-
mended type and heat range.
SClean air filter.
SCheck entire unit for loose screws, nuts, and
bolts. Replace any damaged, broken, or worn
parts.
SStart each season using only fresh fuel hav-
ing the proper gasoline to oil ratio.
OTHER
SDo not store gasoline from one season to
another.
SReplace your gasoline can if it starts to rust.

-- 8 --
1.See “Fueling Your Unit.”
2.Replace with correct spark plug.
3.Contact an authorized service dealer.
4.Contact an authorized service dealer.
TROUBLE CAUSE REMEDY
Engine will not
start. 1.Engine flooded.
2.Fuel tank empty.
3.Spark plug not firing.
4.Fuel not reaching carburetor.
5.Compression low.
1.See “Starting Instructions.”
2.Fill tank with correct fuel mixture.
3.Install new spark plug.
4.Check for dirty fuel filter; replace.
Check for kinked or split fuel line;
repair or replace.
5.Contact an authorized service dealer.
Engine will not
idle properly.
1.Fuel not reaching carburetor.
2.Carburetor requires adjustment.
3.Crankshaft seals worn.
4.Compression low.
1.Check for dirty fuel filter; replace.
Check for kinked or split fuel line;
repair or replace.
2.Contact an authorized service dealer.
3.Contact an authorized service dealer.
4.Contact an authorized service dealer.
1.Air filter dirty.
2.Fuel not reaching carburetor.
3.Spark plug fouled.
4.Spark arresting screen clogged.
5.Carburetor requires adjustment.
6.Carbon build up.
7.Compression low.
Engine will not
accelerate,
lacks power, or
dies under a
load.
1.Clean or replace air filter.
2.Check for dirty fuel filter; replace.
Check for kinked or split fuel line;
repair or replace.
3.Clean or replace spark plug; re-gap.
4.Replace screen.
5.Contact an authorized service dealer.
6.Contact an authorized service dealer.
7.Contact an authorized service dealer.
Engine
smokes
excessively.
1.Choke partially on.
2.Fuel mixture incorrect.
3.Air filter dirty.
4.Carburetor requires adjustment.
1.Adjust choke.
2.Empty fuel tank and refill with
correct fuel mixture.
3.Clean or replace air filter.
4.Contact an authorized service dealer.
Engine
runs hot.
1.Fuel mixture incorrect.
2.Spark plug incorrect.
3.Carburetor requires adjustment.
4.Carbon build up.
TROUBLESHOOTING TABLE
WARNING: Always stop unit and disconnect spark plug before performing any of the
recommended remedies below other than remedies that require operation of the unit.
DECLARATION OF CONFORMITY
EC Declaration of Conformity (Only applies to Europe)
We, Husqvarna AB, SE-561 82 Huskvarna, Sweden, tel: [phone], as authorised
representative in the Community, declare that the garden blower model McCulloch Mac GB
275 with serial numbers dating from 2009 and onwards (the year is clearly stated on the rating
plate, followed by the serial number), comply with the requirements of the COUNCIL’S
DIRECTIVES:
of 17 May 2006 “relating to machinery” 2006/42/EC;
of 15 December 2004 “relating to electromagnetic compatibility” 2004/108/EC, and applicable
supplements; and
of 8 May 2000 “relating to the noise emissions in the environment” in accordance with Annex
Vof2000/14/EC. For information relating to noise emissions, see Technical data section.
The following standards have been applied: EN ISO 12100-1/A1:2009, EN ISO
12100-2/A1:2009, CISPR 12:2007.
SMP Svensk Maskinprovning AB, Fyrisborgsgatan 3, S--754 50 Uppsala, Sweden, has
performed voluntary type examination on behalf of Husqvarna AB. The certificate(s) are
numbered: SEC/09/2025.
0 9 -- 1 1 -- 0 1
Ronnie E. Goldman, Director of Engineering
Authorized representative for Husqvarna AB and
responsible for technical documentation

-- 9 --
TECHNICAL DATA
MODEL: Mac GB 275
ENGINE
Engine displacement, cm325
Maximum Engine Power, according to ISO 8893, kW 0,6
Idle Speed +/-- 400, rpm 4500
Catalytic converter muffler Yes
IGNITION SYSTEM
Spark plug Champion RCJ--6Y
Electrode gap, mm 0,6
FUEL AND LIBRICATION SYSTEM
Fuel tank capacity, cm3270
WEIGHT
Weight with tube, empty tank, kg 3,68
NOISE EMISSIONS
(see Note 1)
Sound power level, measured dB(A) 103
Sound power level, guaranteed LWA dB(A) 107
SOUND LEVELS
(see Note 2)
Equivalent sound pressure level at the operator’s ear, measured
according to ISO 22868, dB(A)
Equipped with blower tube (original) 91,9
VIBRATION LEVELS
(see Note 3)
Equivalent vibration levels (ahv,eq) at handles, measured
according to ISO 22867, m/s2
Equipped with blower tube (original), right 4,9
Note 1: Noise emissions in the environment measured as sound power (LWA) in conformi-
ty with EC directive 2000/14/EC. Reported sound power level for the machine has been
measured with the original cutting attachment that gives the highest level. The difference
between guaranteed and measured sound power is that the guaranteed sound power also
includes dispersion in the measurement result and the variations between different ma-
chines of the same model according to Directive 2000/14/EC.
Note 2: Reported data for equivalent sound pressure level for the machine has a typical
statistical dispersion (standard deviation) of 1 dB(A).
Note 3: Reported data for equivalent vibration level has a typical statistical dispersion
(standard deviation) of 1 m/s2.