WWW.McCULLOCH.COM
Husqvarna AB
SE-561 82 Huskvarna
Sweden
576191713
Rev. 1 2012-12-07
GB Operator’s manualOriginal instructions
WARNING: For your own safety please read
this manual before attempting to operate your new
unit.Failure to follow instructions can result in
serious personal injury.Spend a few moments to
familiarize yourself with your trimmer before each
use.
MT 305 CPS
MB 305 CBS
112
15m(50ft)
112
GENERAL SAFETY RULES
112
15m(50ft)
Meaning of symbols marked on the product
Read the user manual before using the machine
Whenever the machine is in use, safety glasses
must be worn to safeguard against flying objects.
Hearing protection must also be used in order to
protect to operators hearing. If the operator is
working in an area where there is a risk of falling
objects a safety helmet must also be worn.
Warning! Hot surface
Wear gloves to protect your hands
Wear foot protection
WARNING! When using petrol powered tools, basic safety precautions, including the following, should always be followed
to reduce the risk of serious personal injury and/or damage to the unit.
Read all these instructions before operating this product and save these instructions.
WARNING!
interfere with active or passive medical implants. To reduce the risk of serious or fatal injury, we recommend persons with
medical implants to consult their physician and the medical implant manufacturer before operating this machine.
This machine produces an electromagnetic field during operation. This field may under some circumstances
WHAT TO DO
READ YOUR USER MANUAL AND ALL SUPPLEMENTS (IF ANY ENCLOSED) THOROUGHLY BEFORE
OPERATING YOUR UNIT.
WARNING: Keep children, bystanders, and
animals 50 feet (15 metres) away. If
approached stop unit immediately.
1. Wear close fitting, tough work clothing that will
provide protection, such as long slacks or trousers,
safety work shoes, heavy duty work gloves, hard hat,
a safety face shield, or safety glasses for eye protection and a good grade of ear plugs or other sound
barriers for hearing protection.
2. Refuel in a safe place.
release any pressure which may have formed in fuel
tank. To prevent a fire hazard, move at least 10 feet
(3 metres) from fueling area before starting.
3.
Comply with all fire prevention regulations. Your
unit comes with a spark arrester screen furnished in
the user kit.Replacement spark arrester screen kits
are available from distributor.
4. Turn unit off before setting it down.
5.
Always hold unit firmly with both hands, the
thumb and fingers encircling the handles.
Open fuel cap slowly to
Keep people or animals at least 15m away from
the machine during operation
Warning! Cutting elements continue to rotate
after the engine turned off
Warning: Rotating blades
Beware of thrown objects
Acoustic power level LWA accordance with
directive 2000/14/EC + 2005/88/EC
Sound pressure level at 7,5 metres.
Maximum rotational frequency of the spindle for
cutting head
Maximum rotational frequency of the spindle for
blade
6. Keep all screws and fasteners tight. Never operate
your equipment when it is improperly adjusted or not
completely and securely assembled.
7. Keep handles dry, clean and free of fuel mixture.
8. Keep trimmer head as close to ground as practical.
Avoid hitting small objects with trimmer head. When
cutting on a slope, stand below trimmer head. NEVER
cut or trim on a hill or slope, etc. If there is the slightest
chance of slipping, sliding or losing firm footing.
9. Check area you will be trimming for debris that
may be struck or thrown during operation.
10. Keep all parts of your body and clothing away
from trimmer head when starting or running
engine. Before starting engine, make sure trimmer
head will not come in contact with any obstacle.
11. Stop engine before examining cutting line.
12. Store equipment away from possible ignition
sources, such as gas-po
clothes d
heaters, etc.
13. Always keep the debris shield, trimmer head, and
engine free of debris build-up.
14. Operation of equipment should always be restricted
to mature and properly instructed individuals.
15. WARNING: The emission of exhaust gases is toxic.
16. Emergency Stopping Procedure. When it is necessary to stop engine immediately, DEPRESS the
switch to stop.
17. This unit has a clutch. The routine for checking that
the clutch is working correctly is that when the engine
returns to idle the trimmer head stops spinning.
ryers, or oil-fired furnaces, portable
wered water heaters,
GB GB
18.
Tighten the cap of oil and fuel tank to prevent the loss
of oil and fuel during transport
19.
It is recommended that daily inspection before use
and after dropping or other impacts to prevent
significant damage or defects.
20.
Prolonged use of this product expose the operator to
vibrations and may produce ‘whitefinger’ disease. In
order to reduce the risk, please wear gloves and
keep your hands warm. If any of the ‘whitefinger’
symptoms appear, seek medical advice immediately.
BRUSH / GRASS BLADE SAFETY PRECAUTIONS
1. FOLLOW ALL WARNINGS and instructions regarding operation and blade installation.
2. BLADE CAN VIOLENTLY THRUST AWAY FROM
MATERIAL IT CANNOT CUT - Blade thrust can
cause serious injury. Keep people and animals 50
feet (15 metres) away in all directions. If blade conacts foreign objects during operation, turn off engine
and allow coasting blade to stop.Then check blade
for damage.Always discard blade if it is warped or
cracked.
3. BLADE THROWS OBJECTS VIOLENTLY Wear eye, face, and leg protection. Always clear
work area of any foreign objects before using blade.
Keep people and animals 50 feet (15 metres) away
in all directions.
4. INSPECT YOUR TRIMMER AND ATTACHMENTS
BEFORE EACH USE - Never use unless all bladeattaching hardware is properly installed.
5. BLADE COASTS AFTER THROTTLE IS RELEASED
- A coasting blade can cut you or bystanders. Before
per
forming any service on the blade, always turn off
engine, and be sure coasting blade has stopped.
6. 50-FOOT (15 metres) DIAMETER HAZARD ZONE Bystanders can be injured.Keep people and anima-
ls 50 feet (15 metres) away in all directions.
WHAT NOT TO DO
1. DO NOT USE ANY OTHER FUEL than that recom-
mended in your manual. Always follow instructions in
the Fuel and Lubrication section of this manual.Never
use petrol unless it is properly mixed with 2-cycle
engine lubricant. Permanent damage to engine will
result, voiding manufacturer’s warranty.
2. DO NOT SMOKE while refueling or operating equip-
ment.
3. DO NOT OPERATE UNIT WITHOUT A MUFFLER
and properly installed muffler shield.
4. DO NOT TOUCH or let your hands or body come in
contact with a hot muffler or spark plug wire.
5. DO NOT OPERATE UNIT IN AWKWARD POSITIONS, off balance, outstretched arms, or one-handed. Always use two hands when operating unit with
thumbs and fingers
6. DO NOT RAISE TRIMMER HEAD above ground level
while unit is operating. Injury to operator could
7. DO NOT USE UNIT FOR ANY PURPOSES OTHER
than trimming lawn or garden areas.
8. DO NOT OPERATE UNIT FOR PROLONGED PERIODS. Rest periodically.
9. DO NOT OPERATE UNIT WHILE UNDER THE
INFLUENCE OF ALCOHOL OR DRUGS.
10. DO NOT OPERATE UNIT UNLESS CUTTING
ATTACHMENT GUARD AND/OR GUARD IS
INSTALLED AND IN GOOD CONDITION.
11. DO NOT ADD, REMOVE OR ALTER ANY COMPONENTS OF THIS PRODUCT. Doing so could cause
personal injury and/or damage the unit voiding the
manufacturer’s warranty.
12. DO NOT operate your unit near or around flammable
liquids or gases whether in or out of doors. An explosion and/or fire may result.
13. DO NOT USE ANY OTHER CUTTING ATTACHMENT.
Use only McCulloch replacement parts and accessories, which are designed specifically to enhance the
performance and maximize the safe
products. Failure to do so may cause poor performance and possible injury. Use only the cutting head
supplied with this product. Do not use any other cut-
ting attachment. Use of such attachments will void
your factory warranty and could result in serious bodily injury.
encircling the handles.
result.
operation of our
21
GB GB
MT 305 CPS
9
8
6A
4
2
1
1. TRIMMER HEAD
2. TRIMMER LINE
3. SHIELD
4. BLADE
5. DRIVE SHAFT
6A. “P” HANDLE
(MT 305 CPS)
GENERAL IDENTIFICATION
8
7
6B. “BIKE” HANDLE (MB 305 CBS)
7. THROTTLE TRIGGER
8. ON/OFF SWITCH
9. THROTTLE TRIGGER LOCK
10. THROTTLE LOCK
11. CHOKE LEVER
12. STARTER ROPE HOUSING
7
6B
5
19
18
3
OUT
10
SPECIFICATIONS
Model No. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MT 305 CPS . . . . . . . . . . . . . . . . . . . . . . .MB 305 CBS
MB 305 CBS
9
11 20
15
16
14
17
12
13
13. FUEL TANK
14. AIR FILTER COVER
15. STARTER HANDLE
16. MUFFLER SHIELD
17. PRIMER BULB
18. SHOULDER STRAP (MT 305 CPS)
19. COUPLER
20. HARNESS (MB 305 CBS)
Engine Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Air-cooled, 2-Cycle, . . . . . . . . . . . . . . . . . . . . . Air-cooled, 2-Cycle,
Displacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 cm
Dry Weight (without fuel, cutting attachment and guard) . . . . . . . . . .5.7 Kg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.35 Kg
Fuel Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .550cm
Bump Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Twin Line Bump Feed . . . . . . . . . . . . . . . . . . .Twin Line Bump Feed
Blade 4 Teeth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Teeth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Teeth
Drive Shaft Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66cm + 66cm . . . . . . . . . . . . . . . . . . . . . . . . . 66cm + 66cm
Cutting Width (Twin Line Head) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43cm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43cm
Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .“P” Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . .Bike Handle
Ignition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Electronic . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electronic
Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Centrifugal Clutch . . . . . . . . . . . . . . . . . . . . . . Centrifugal Clutch
Sound pressure level
Sound power level
Guarantee sound power level (2000/14/EC+2005/88/EC)
Vibration
Maximum Engine Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.89 kW
Engine Speed (rotational frequency) at recommended
max. spindle rotational frequency
Maximum rotational frequency of the spindle
Idle speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3000±300 min-1 . . . . . . . . . . . . . . . . . . . . . . . . .3000±300 min
Specific fuel consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .415.3 g/kWh . . . . . . . . . . . . . . . . . . . . . . . . . . .415.3 g/kWh
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Chrome Cylinder . . . . . . . . . . . . . . . . . . . . . . . Chrome Cylinder
(Blade) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23cm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23cm
(EN ISO 11806)(K=2.5)
(EN ISO 11806)
(K=1.5)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.463 m/s . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.987 m/s
(Bump Feed Head) . . . . . . . . . . . . . . . . . . . . . . . . . . . .9000 min
(Blade) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11000 min-1 . . . . . . . . . . . . . . . . . . . . . . . . . . .11000 min
(Bump Feed Head) . . . . . . . . . . . . . . . . . . . . . . . . . . . .6700 min
(Blade) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8200 min-1 . . . . . . . . . . . . . . . . . . . . . . . . . . .8200 min
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96.59 dB(A)
(K=2.5)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 cm
3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .550cm
109.43 dB(A)
112 dB(A)
2
0.89 kW
-1
. . . . . . . . . . . . . . . . . . . . . . . . . . . .9000 min
-1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 6700 min
3
3
96.59 dB(A)
109.43 dB(A)
112 dB(A)
2
-1
-1
-1
-1
-1
SAFETY FEATURES
CUTTING ATTACHMENT SHIELD must be installed to prevent debris from being thrown at the operator and prevent
3
the string from extending longer than necessary.
16 MUFFLER SHIELD helps prevent hands, body and/or combustible materials from making contact with a hot muffler.
3
4
GB GB
90ß
ASSEMBLY INSTRUCTIONS
WARNING: Please assemble the unit according
to the assembly instructions. Failure to do
so may cause injury to the operator.
• “P” ATTACHING THE HANDLE
(MT 305 CPS)
DANGER: To avoid serious injury, the barrier portion of
the handle must be installed as shown to provide a barrier
between operator and the spinning blade.
1.
Position the loop handle on the shaft. Note that the
handle must be mounted in front of direction arrow
on the shaft. (The distance between both handles
shall be at least 250mm.)
Handle
Nut
Securing
plate
Wrench
2. Install the bolt, securing plate and nut as shown
in the illustration.
3. Make a final adjustment of the handle to a comfortable working position. Tighten the nut firmly with
wrench (provided).
• “BIKE¨ HANDLE INSTALLATION
(MB 305 CBS)
1. To install handle onto unit, you will need the following
components from your user kit: “Bike” handle (A), fixing holder (B), clamp (C) and screws (D). (Fig. 1C)
Install the fixing holder (B) before the sponge sleeve
2.
(E), and adjust it to a proper position.
3. Install the Bike handle (A) on the fixing holder (B), put
the other clamp (C) over bike-handle, adjut handle to
appropriate position and tighten the other 2 screws
(D). The left handle shall be at least 200mm
horizontally perpendicularly from the shaft tube. The
handle shaft must be mounted on the right side of
direction of arrow head on the handle shaft. (Fig.1D)
4. Install wire tie (F) included in the user kit as shown
(Fig. 1E).
Bolt
D
B
A
C
200mm
(minimum)
Fig. 1D Fig. 1E
C
E
D
Fig. 1C
F
• INSTALLING THE ATTACHMENT
WARNING:
shut unit off before removing or installing
attachment.
NOTE: To make installing or removing the attachment
easier, place the unit on the ground or on a work bench.
1. Turn the knob (A) counterclockwise to loosen (Fig.
2A).
2. While firmly holding the attachment (B), push it
straight into the Quick-Change coupler (C) until the
release button (D) appears in the primary hole (E) of
the Quick-Change coupler. (Fig. 2B)
3. Turn the knob (A) clockwise to tighten. (Fig. 2C)
CAUTION:
primary hole and the knob securely tightened
before operating this unit.
All attachments are designed to be used in the primary
hole unless otherwise indicated in the specific attachments operators manual. If the incorrect hole is used, it
could result in injury, or damage to the unit.
A
C
E
Fig. 2A Fig. 2B
5
Fig. 2C
To avoid serious personal injury,
The release button must be in the
C
B
D
D
• ATTACHING THE SHIELD
WARNING: The shield must be properly installed. The
shield provides partial protection to the operator and others
from the risk of thrown objects, and is equipped with a line
limiter blade which cuts excess line to the proper length.
The line limiter blade (on underside of shield) is sharp and
can cut you.
1. Insert bracket into slot on shield.
2. Pivot shield to align holes in shield and bracket.
Bracket
Slot
2. Secure shield to bracket with bolt.
Shield
Remove blade nut by turning clockwise. Remove the
screwdriver. Remove both washers and blade.
See INSTALLATION OF THE METAL BLADE for
illustrations. Be sure to store all parts and instructions
for future use. Never use the trimmer head with the
metal blade installed.
• INSTALLATION OF THE TRIMMER HEAD
NOTE: If your unit has a plastic cover over the threads on
the threaded shaft, remove the covering to expose the
threads. Before installing the trimmer head, make sure the
dust cup and retaining washer are positioned on the
gearbox.
Shield
Aligned holes
Gearbox
Dust cup
Retaining washer
NOTE: Make sure all parts are properly installed as
shown in the illustration before installing the trimmer head.
1. Align hole in the dust cup with the hole in the side of
the gearbox by rotating the dust cup.
2. Insert a small screwdriver into aligned holes. This will
Bolt
• CONFIGURING YOUR UNIT
You can configure your unit using a cutting head for grass
and light weeds, or a weed blade for cutting grass, weeds,
and brush up to 1 cm in diameter. To assemble your unit,
go to the section for the desired configuration and follow
the instructions.
keep the shaft from turning while tightening trimmer
head.
3. While holding the screwdriver in position, thread
trimmer head onto the shaft in the direction shown on
the decal (counterclockwise). Tighten until secure.
NOTE: The retaining washer must be positioned with the
raised section facing toward the gearbox.
• ASSEMBLY INFORMATION - METAL BLADE
METAL
BLADE
• ASSEMBLY INFORMATION - TRIMMER
B
E
HEAD
TRIMMER
HEAD
NOTE: Remove the blade before attaching the trimmer
head. To remove blade, align hole in the dust cup with
the hole in the side of the gearbox by rotating the blade.
Insert a small screwdriver into aligned holes. This will
keep the shaft from turning while loosening the blade nut.
NOTE: Remove the trimmer head before installing
the weed blade. To remove the trimmer head, align hole
in the dust cup with the hole in the side of the gearbox by
rotating the dust cup. Insert a small screwdriver into
aligned holes. This will keep the shaft from turning while
loosening the trimmer head. Remove the trimmer head by
turning clockwise. Remove the screwdriver.
See INSTALLATION OF THE CUTTING HEAD for
illustrations. Be sure to store all parts and instructions for
future use.
6
GB GB
A
LWA
Y
• INSTALLATION OF THE METAL BLADE
WARNING: Wear protective gloves when handling or
performing maintenance on the blade to avoid injury. The
blade is sharp and can cut you even when it is not
moving.
WARNING: Do not use any blades, or fastening
hardware other than the washers and nuts shown in the
following illustrations. These parts must be provided by
McCulloch and installed as shown below. Failure to use
proper parts can cause the blade to fly off and seriously
hurt you or others.
NOTE: The dust cup is located on the gearbox shaft and
not in the parts bag. All other fasteners mentioned in the
following assembly steps are in the parts bag.
1. Install the blade and the retaining washer over the
threaded shaft.
2. Make sure the raised part of the retaining washer is
facing the gearbox and the raised area fits into the
hole in the center of the blade.
3. Slide the blade and retaining washer onto the shaft of
the gearbox.
4. Place the cupped washer onto the shaft. Make sure
the cupped side of the washer is toward the blade.
5. Install the blade nut by threading onto the shaft
counterclockwise.
Shield
Aligned holes
Retaining washer
Cupped washer
Nut
Wrench
NOTE: Make sure all parts are in place as illustrated,
and the blade is sandwiched between the dust cup and
the retaining washer. There should be no space between
the blade and the dust cup or the retaining washer.
6. Align hole in dust cup with hole in side of gearbox by
rotating the blade.
7. Insert a small screwdriver into aligned holes. This will
keep the shaft from turning while tightening the blade
nut.
8. Tighten blade nut firmly with wrench (provided) while
holding screwdriver in position.
9. Remove the screwdriver.
10. Turn blade by hand. If the blade binds against the
shield, or appears to be uneven, the blade is not
centered, and you must reinstall.
NOTE: To remove blade, insert screwdriver into aligned
holes. Unthread the nut (clockwise direction) and remove
parts. Be sure to store parts and instructions for future
use.
Gearbox
Dust cup
Threaded
shaft
Blade
• REMOVE AND INSTALLATION THE BLADE
COVER
CAUTION: Before you take apart the blades,
wear gloves to prevent any danger.
CAUTION:When the machine is not in use or
in transportation, make sure blades have
been covered.
1. Before assembling blades, please remove the blades
cover first.
2. Refer figure 6A and Figure 6B, hold the blades cover,
and pull sligtly the cover outward the cover can be
taken apart.
3. Refer to figure 6C and 6D, and assemble in the opposite way to cover the blades.
Fig. 6A Fig. 6B
Fig. 6C Fig. 6D
FUEL AND LUBRICATION
WARNING: Never use straight petrol in
your unit. This will cause permanent engine
damage and void the manufacturer’s warranty for that product. Never use a fuel mixture
that has been stored for over 30 days.
WARNING: If 2-cycle lubricant other than
McCulloch Custom Lubricant is to be used, it must
be a premium grade oil for 2-cycle air
engines mixed at a 40:1 ratio. Do not
2-cycle oil product with a recommended mi-
xing ratio of 100:1. If insufficient lubrication is
the cause of engine damage, it voids the
manufacturer’s engine warranty.
WARNING:
ranty. Fuel and oil must be mixed at 40:1.
Lack of lubrication voids engine war-
cooled
use any
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 designed to be mixed at a ratio of 40:1. A 40:1 ratio is
obtained by mixing 5 litres of unleaded petrol with 125ml of oil. DO
NOT USE automotive oil or marine oil. These oils will cause engine
damage. When mixing fuel, follow instructions printed on oil
container. Once oil is added to petrol, shake container momentarily
to assure that the fuel is thoroughly mixed. Always read and follow
the safety rules relating to fuel before fueling your unit.
FUEL REQUIREMENTS
Use good quality unleaded petrol. The lowest recommended octane
grade is 90 (RON).
IMPORTANT
Use of alcohol blended fuels (called gasohol or using ethanol or
methanol) can cause major enging performance and durability
problems.
WARNING: Alternative fuels (not petrol) such as
E-15 (15% alcohol), E-20 (20% alcohol), E-85 (85%
alcohol) are NOT classified as petrol and are NOT
approved for use in 2-stroke petrol engines. Use of
alternative fuels will cause problems such as:
improper clutch engagements, overheating, vapor
lock, power loss, lubrication deficiency, deterioration
of fuel lines, gaskets and internal carburetor
components, etc. Alternative fuels cause high
moisture absorption into the fuel/oil mixture leading
to oil and fuel separation.
• FUEL AND LUBRICATION
Fuel & Oil Mix
40:1 (2.5%)
• FUEL / OIL MIXTURE RATIOS
Petrol - Litre Two-Stroke Oil - ml
40:1 (2.5%)
2 50
5 125
10 250
OPERATING INSTRUCTIONS
• SHOULDER HARNESS
WARNING: ALWAYS WEAR SHOULDER
HARNESS when operating unit with a blade.
Attach harness to trimmer after starting unit
and engine is running at IDLE. Turn ENGINE
OFF before disconnecting shoulder harness.
NOTE: When you install the cutting attachment, please
follow the below requirements.
1a. Put the harness on so the shoulder strap is over your
LEFT shoulder.
1b. For Model MB 305 CBS , the shoulder straps are on
your both shoulders. NOTE: Pull the black strip(E) in
order to quickly release the harness from the
operator in the event of emergency. (Fig 8C)
2. Attach the harness clip (C) to the ring (D) mounted on
the shaft (Fig. 8A and 8B and 8D).
3. Adjust length of shoulder strap so trimmer head is
parallel to the ground as it hangs from the strap. A
few practice swings without starting engine should be
made to determine correct balance.
NOTE: Detach the shoulder harness from the unit before
starting engine.
MB 305 CBS
Fig. 8D
C
E
PUSH
D
Safety helmet
Eye protection
Fig. 8B
Fig. 8C
MB 305 CBS
C
Fig. 8A
D
MT 305 CPS
• OPERATING POSITION
S WEAR:
Hearing
protection
Heavy,
long pants
Boots
Cut from your right to your left.
87
GB GB
When operating unit, clip shoulder strap onto clamp, stand
as shown and check for the following:
- Wear eye protection and heavy clothing.
- Extend your left arm and hold loop handle with your
left hand.
- Hold throttle grip with your right hand with finger on
throttle trigger.
- Keep unit below waist level.
- Keep shoulder strap pad centered on your left
shoulder.
- Maintain full weight of tool on your left shoulder.
- Without bending over, keep the blade or trimmer
head near and parallel to the ground and not
crowded into material being cut.
• STARTING A COLD ENGINE
NOTE: To minimize load on engine during starting and
warm-up, trim excess cutter line to 13cm (Fig. 9A).
1. Press ON/OFF switch to the “RUN (I)” position
(Fig.9B).
2. Your unit is designed with a 3 position choke: FULL
CHOKE “ ”, HALF CHOKE “ ”, and RUN “ ”.
Move choke lever to FULL CHOKE “ ” position
(Fig. 9C).
3a. For “P” handle “ ”, squeeze throttle trigger to full
position.(MT 305 CPS)
3b. For Bike handle “ ”, set throttle lock (C): Press
the lockout switch (A) down and then holding trigger
(B) at partially open position, press down and hold
throttle lock (C). Release throttle trigger (B). Throttle
trigger (B) will now remain in the partially depressed
position (Fig. 9B). (MB 305 CBS)
4.
Press the primer bulb (A) 10 times (Fig. 9D).
5.
Wait 10 sec.
6.
A smooth rapid pull is required for a strong spark. Pull
starter rope briskly maximum 6 times. (Fig. 9F) As
soon as the engine sounds as if it is trying to start
(even if less than 6 pulls) then move the choke lever
to HALF CHOKE “ ” position.(Fig. 9G)
7.
Pull starter rope again while trigger is in the full throttle
position until engine starts. (Fig. 9F)
8.
Once engine is started, leave the choke lever in the
HALF CHOKE “ ” position for 20 seconds, then move
choke lever to RUN “ ”. (Fig. 9H)
If engine does not start, go back to step 2.
NOTE: If engine fails to start after repeated attempts, refer
to Troubleshooting section.
NOTE: Always pull starter rope straight out. Pulling starter
at an angle will cause rope to rub against the eyelet. This
friction will cause the rope to fray and wear more quickly.
Always hold starter handle when rope retracts. Never
allow rope to snap back from extended position. This
could cause rope to snag or fray and also damage the
starter assembly.
13cm
For blade
100-400mm
For String
Head
0-300mm
Fig. 9A Fig. 9B
MT 305 CPS
MB 305 CBS
C
A
B
A
Fig. 9C Fig. 9D
A
MT 305 CPS
B
MB 305 CBS
Fig. 9E Fig. 9F
Fig. 9G Fig. 9H
C
A
B
• WARM ENGINE START
1. Move switch to the “RUN” position (Fig. 10A).
2. Place choke in HALF CHOKE “ ” position (Fig. 10B).
3. Grasp throttle handle firmly, squeeze throttle trigger
to FULL position.
4. Pull starter rope briskly until engine starts, but no
more than 6 times. Keep throttle at FULL position until
engine runs smoothly.
5. If engine does not start, place choke in RUN “ ” position and pull starter rope 5 more times. If engine still
does not start it is probably flooded. Wait 5 minutes
and repeat procedure with choke in RUN “ ” position
and throttle full open.
A
MT 305 CPS
Fig. 10A
MB 305 CBS
Fig. 10B
• TO STOP ENGINE
Release throttle trigger. Let engine return to idle.Push and
hold ignition stop switch until engine stops.
TRIMMER INSTRUCTIONS
• OPERATING INSTRUCTIONS FOR USE
WITH TRIMMER HEAD
WARNING: Always wear eye protection. Never lean
over the trimmer head. Rocks or debris can ricochet or
be thrown into eyes and face and cause blindness or
other serious injury.
Before trimming, bring engine to a speed sufficient to cut
material to be trimmed.
When cutting grass, engine RPM should be maintained
at a level where the trimmer line cuts grass cleanly
without overloading or slowing the engine.
Always release the throttle trigger and allow the engine
to return to idle speed when not cutting.
To stop engine:
- Release the throttle trigger.
- Push and hold the ON/STOP switch in the STOP
position until the engine stops.
• TRIMMER LINE ADVANCE
Advance line by tapping the bottom of the cutting head
lightly on the ground while engine is running at full
speed. The metal line limiter blade attached to the guard
will cut the line to the proper length.
WARNING: Use only 2,4 mm diameter line. Other
sizes of line will not advance properly and will result in
improper cutting head function or can cause serious
injury. Do not use other materials such as wire, string,
rope, etc. Wire can break off during cutting and become
a dangerous missile that can cause serious injury.
• CUTTING METHODS
WARNING: Do not crowd the line when cutting around
hard objects (rock, gravel, fence posts, etc.), which can
damage the trimmer head, become entangled in the line,
or be thrown causing a serious hazard.
- The tip of the line does the cutting. You will achieve
the best performance and minimum line wear by not
crowding the line into the cutting area. The right and
wrong ways are shown below.
Tip of line does
the cutting.
Line crowded into
work area.
- The line will easily remove grass and weeds from
around walls, fences, trees and flower beds, but it
also can cut the tender bark of trees or shrubs and
scar fences.
- For trimming or scalping, use less than full throttle to
increase line life and decrease head wear,
especially:
- During light duty cutting.
- Near objects around which the line can
wrap such as small posts, trees or fence
wire.
- For mowing or sweeping, use full throttle for a good
clean job.
TRIMMING - Hold the bottom of the trimmer head about
8 cm above the ground and at an angle. Allow only the
tip of the line to make contact. Do not force trimmer line
into work area.
Trimming
8 cm above
ground
SCALPING - The scalping technique removes unwanted
vegetation down to the ground. Hold the bottom of the
trimmer head about 8 cm above the ground and at an
angle. Allow the tip of the line to strike the ground
around trees, posts, monuments, etc. This technique
increases line wear.
Scalping
MOWING - Your trimmer is ideal for mowing in places
conventional lawn mowers cannot reach. In the mowing
position, keep the line parallel to the ground. Avoid
pressing the head into the ground as this can scalp the
ground and damage the tool.
Mowing
9
10
GB GB
SWEEPING - The fanning action of the rotating line can
be used to blow away loose debris from an area. Keep
the line parallel to and above the area surface and swing
the tool from side to side.
Sweeping
• TRIMMING PROCEDURES
When properly equipped with a cutting attachment guard
and cutting head, your unit will trim unsightly weeds and
tall grass in those hard-to-reach areas - along fences,
walls, foundations and around trees. It can also be used for
scalping to remove vegetation down to the ground for easier preparation of a garden or to clean out a particular area.
NOTE: Even with care, trimming around foundations, brick
or stone walls, curves, etc., will result in above normal
string wear.
TRIMMING / MOWING
Swing trimmer with a sickle-like motion from side to side.
Do not tilt the cutting head during the procedure.Test area
to be trimmed for proper cutting height. Keep cutting head
at same level for even depth of cut (Fig. 12A).
Fig. 12A
OPERATING INSTRUCTIONS FOR USE WITH
WEED BLADE
• Blade Thrust is a reaction that only occurs when
using a bladed unit. This reaction can cause serious
injury. Carefully study this section. It is important that
you understand what causes blade thrust, how you
can reduce the chance of its occurring, and how you
can remain in control of unit if blade thrust occurs.
• WHAT CAUSES BLADE THRUST - Blade Thrust
can occur when the spinning blade contacts an object
that it does not cut. This contact causes the blade to
stop for an instant and then suddenly move or “thrust”
away from the object that was hit. The “thrusting”
reaction can be violent enough to cause the operator
to be propelled in any direction and lose control of the
unit. The uncontrolled unit can cause serious injury if
the blade contacts the operator or others.
• WHEN BLADE THRUST OCCURS - Blade Thrust
can occur without warning if the blade snags, stalls, or
binds. This is more likely to occur in areas where it is
difficult to see the material being cut. By using the unit
properly, the occurrence of blade thrust will be
reduced and the operator will be less likely to lose
control.
Cut only grass, weeds, and woody brush up to 1 cm in
•
diameter with the weed blade. Do not let the blade
contact material it cannot cut such as stumps, rocks,
fences,metal, etc., or clusters of hard, woody brush
having a diameter greater than 1 cm.
• Keep the blade sharp. A dull blade is more likely to
snag and thrust.
• Cut only at full throttle. The blade will have maximum
cutting power and is less likely to bind or stall.
• “Feed” the blade deliberately and not too rapidly. The
blade can thrust away if it is fed too rapidly.
• The grass is cut down with a sideways, swinging
movement, where the movement from right-to-left is
the cutting stroke and the movement from left-to-right
is the return stroke. Let the left-hand side of the blade
do the cutting.
• Use the shoulder strap and keep a firm grip on the unit
with both hands. A properly adjusted shoulder strap
will support the weight of the unit, freeing your arms
and hands to control and guide the cutting motion.
• Keep feet comfortably spread apart and braced for a
possible sudden, rapid thrust of unit. Do not
overreach. Keep firm footing and balance.
• Keep blade below waist level; it will be easier to
maintain control of unit.
• Do not raise the engine above your waist as the blade
can come dangerously close to your body.
• Do not swing unit with such force that you are in
danger of losing your balance.
Bring the engine to cutting speed before entering the
material to be cut. If the blade does not turn when you
squeeze the throttle trigger, make sure shaft is fully
inserted into the engine.
Always release the throttle trigger and allow engine to
return to idle speed when not cutting. The blade should
not turn while the engine is running at idle. If the blade
turns at idle, do not use your unit. Refer to the
CARBURETOR ADJUSTMENT section or contact your
authorized service dealer.
• Maintain good firm footing while using the unit. Do this
by planting feet firmly in a comfortable apart position.
• Cut while swinging the upper part of your body from
right to left.
• As you move forward to the next area to cut, be sure
to maintain your balance and footing.
WARNING: The operator or others must not try to
clear away cut material with the engine running or
the blade turning to avoid serious injury. Stop
engine and blade before removing materials
wrapped around blade or shaft.
MAINTENANCE INSTRUCTIONS
• REPLACING THE LINE
1. Press the tabs on the side of the trimmer head and
remove cover and spool.
Tab
Cover
Spool
Tab
2. Remove any remaining line.
3. Clean dirt and debris from all parts. Replace spool if it
is worn or damaged.
4. Replace with a pre-wound spool, or replace line using
a 4,5 metres length of 2,4 mm diameter McCulloch
brand line.
WARNING: Never use wire, rope, string, etc.,
which canbreak off and become a dangerous
missile.
5. When installing new line on an existing spool, hold the
spool as shown.
6. Bend the line at the midpoint and insert the bend into
the slot in the center rim of the spool. Ensure line
snaps into position in the slot.
Slot
7. With your finger between the lines, wrap the lines
evenly and firmly around the spool in a clockwise
direction.
8. Position the lines in the guide slots.
Guide slot
Guide slot
1211
GB GB
9. Place the spool in the cover as shown below.
10. Insert the ends of the lines through exit holes in the
sides of the cover.
Line exit hole
Cover
11. Reinstall the spool and cover onto the trimmer head.
Push until cover snaps into place.
• BLADE REPLACEMENT
Refer to the ASSEMBLY section for blade replacement
instructions and illustrations.
• CARBURETOR ADJUSTMENT
WARNING: Keep others away when making idle speed
adjustments. The trimmer head will be spinning during
most of this procedure. Wear your protective equipment
and observe all safety precautions. After making
adjustments, the trimmer head must not move/spin at idle
speed. The carburetor has been carefully set at the
factory. Adjustments may be necessary if you notice any
of the following conditions:
- Engine will not idle when the throttle is released.
- The trimmer head moves/spins at idle speed.
Make adjustments with the unit supported so the cutting
attachment is off the ground and will not make contact
with any object. Hold the unit by hand while running and
making adjustments. Keep all parts of your body away
from the cutting attachment and muffler.
Idle Speed Adjustment
Allow engine to idle. Adjust speed until engine runs
without trimmer head moving or spinning (idle speed too
fast) or engine stalling (idle speed too slow).
- Turn idle speed screw clockwise to increase engine
speed if engine stalls or dies.
- Turn idle speed screw counterclockwise to decrease
engine speed if trimmer head moves or spins at idle
speed.
WARNING: Recheck the idle speed after each
adjustment. The trimmer head must not move or spin at
idle speed to avoid serious injury to the operator or
others.
• AIR FILTER
CAUTION: NEVER operate trimmer without
the air filter. The air filter must be kept clean.
If it becomes damaged, install a new filter.
To Clean Air Filter:
1. Remove knob (A) holding air filter cover in place,
remove cover (B) and lift filter (C) from air box (Fig.
16).
2. Wash filter in soap and water. DO NOT USE PETROL!
3. Air dry filter.
4. Reinstall filter.
NOTE: Replace filter if frayed, torn, damaged or unable to
be cleaned.
A
B
C
• Fuel Cap / Filter
CAUTION: Remove fuel from unit and store
in approved container before starting this
procedure. Open fuel cap slowly to release
any pressure which may have formed in fuel
tank.
1. Completely remove fuel cap (A) from fuel tank (B)
to be able to remove fuel filter (D) from tank. Use a
piece of wire (C) with a hook formed at the end to
pull filter out of tank. (Fig. 17A & Fig. 17B)
2. Pull filter (D) off with a twisting motion.
3. Replace fuel filter
NOTE: Never operate the trimmer without the fuel filter.
Internal engine damage could result!
Fig. 17A Fig. 17B
D
Fig. 17C
(D). (Fig. 17C)
A
B
C
• CARBURETOR ADJUSTMENT
The carburetor was pre-set at the factory for optimum performance. If further adjustments are necessary, please
take your unit to the nearest Authorized Service Center.
• SPARK PLUG
1. Spark plug gap = .025" (.635mm) (Fig. 18).
2. Torque to 105 to 130 inch pounds (12 to 15 N•m).
Connect spark plug boot.
E
Fig. 18 Fig. 19
F
• STORING A UNIT
WARNING: Failure to follow these steps
may cause varnish to form in the carburetor
and difficult starting or permanent damage
following storage.
1. Perform all the general maintenance recommended
in the Maintenance Section of your User Manual.
2. Clean exterior of engine, Output Shaft, cutting attachment guard and cutting head.
3. Drain fuel from the fuel tank.
4. After fuel is drained, start engine.
5. Run engine at idle until unit stops. This will purge the
carburetor of fuel.
6. Allow engine to cool (approx. 5 minutes).
7. Using a spark plug wrench, remove the spark plug.
8. Pour 1 teaspoon of clean 2-cycle oil into the
combustion chamber. Pull starter rope slowly several
times to coat internal components. Replace spark
plug.
9. Store unit in a cool, dry place away from any source
of ignition such as an oil burner, water heater, etc.
• REMOVING A UNIT FROM STORAGE
1. Remove spark plug.
2. Pull starter rope briskly to clear excess oil from combustion chamber.
3. Clean and gap spark plug or install a new spark plug
with proper gap.
4. Prepare unit for operation.
5. Fill fuel tank with new, fresh fuel / oil mixture. See
Fuel and Lubrication Section.
Fig. 16
• CUTTING ATTACHMENT GUARD KNIFE
SHARPENING
1. Remove cutter knife (A) from cutting attachment guard
(B) (Fig. 19).
2. Place knife in a bench vise. Sharpen knife using a flat
file, being careful to maintain the angle of cutting
edge. File in one direction only.
1413
PROBLEM
Unit won’t start or starts but will not run.
Unit starts, but engine has low power.
Engine hesitates.
No power under load.
TROUBLE SHOOTING THE ENGINE
PROBABLE CAUSE
Incorrect starting procedures.
Incorrect carburetor mixture adjustment
setting.
Fouled spark plug
Fuel filter blocked.
Incorrect lever position on choke.
Dirty spark arrester screen.
Dirty air filter.
Incorrect carburetor mixture adjustment
setting.
Incorrect carburetor mixture adjustment
setting.
Follow instructions in the User Manual.
Have carburetor adjusted by an Authorized
Service Center.
Clean / gap or replace plug.
Replace fuel filter.
Move to RUN position.
Replace spark arrester screen.
Remove, clean and reinstall filter.
Have carburetor adjusted by an Authorized
Service Center.
Have carburetor adjusted by an Authorized
Service Center.
CORRECTIVE ACTION
GB
EC DECLARATION OF CONFORMITY
Business name of the manufacturer: Husqvarna AB
Full address of the manufacturer: SE-561 82 Huskvarna, Sweden
We declaring that the machinery
Product name: Grass trimmer, Petrol
Commercial name: Gasoline trimmer
Function: Trimming grass
Model: MT 305 CPS/MB 305 CBS
Type: Powered by petrol
Runs erratically.
Smokes excessively.
Incorrectly gapped spark plug.
Incorrect carburetor mixture adjustment
setting.
Incorrect fuel mixture.
Clean / gap or replace plug.
Have carburetor adjusted by an Authorized
Service Center.
Use properly mixed fuel (40:1 mixture).
Fulfils all the relevant provisions of Directives
2006/42/EC, 2004/108/EC, 2000/14/EC+2005/88/EC,
97/68/EC+2004/26/EC, 2011/65/EU
and tested in accordance with below standards
EN ISO 11806:2011
EN ISO 14982:2009
Person authorised to compile the technical file and making
this declaration:
Name, surname : Bo R Jonsson
Position/Title : R&D Manager
Address : SE-561 82 Huskvarna, Sweden
Place and date of the declaration: Shanghai, PRC 2012/7/30
15
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