Baumr-ag Bctclsbmrabc4 User manual

MC4 40V Battery Powered Line

Trimmer / Brush Cutter

User Manual

[Revision 1.0 April 2018]

READ THIS MANUAL CAREFULLY BEFORE USE – FAILURE TO DO SO MAY RESULT IN INJURY, PROPERTY

DAMAGE AND MAY VOID WARRANTY. • KEEP THIS MANUAL FOR FUTURE REFERENCE. • Products covered by

this manual may vary in appearance, assembly, inclusions, specifications, description and packaging.

MC4 40V Battery Powered Brush Cutter

Safety

Safety messages are designed to alert you to possible dangers or hazards that could cause death, injury or

equipment or property damage if not understood or followed. Safety messages have the following symbols:

You WILL be KILLED or

SERIOUSLY INJURED if you

do not follow instructions.

You CAN be KILLED or

SERIOUSLY INJURED if you

do not follow instructions.

You CAN be INJURED if you

do not follow instructions or

equipment damage may occur.

It is vital that you read and understand

this user manual before using the product,

including safety warnings, and any

assembly and operating instructions.

Keep the manual for future reference.

Safety precautions and recommendations

detailed here must be fully understood

and followed to reduce the risk of injury,

fire, explosion, electrical hazard, and/or

property damage.

Safety information presented here is

generic in nature – some advice may not

be applicable to every product. The term

"equipment" refers to the product, be it

electrical mains powered, battery powered

or combustion engine powered.

•Before Use - If you are not familiar with

the safe operation/handling of the

equipment, or are in any way unsure of

any aspect of suitability or correct use

for your application, you should

complete training conducted by a

person or organization qualified in safe

use and operation of this equipment,

including fuel/electrical handling/safety.

•Do NOT operate the equipment in

flammable or explosive environments,

such as in the presence of flammable

liquids, gases or dust. The equipment

may create sparks or heat that may

ignite flammable substances.

•Keep clear of moving parts.

•Equipment may be a potential source of

electric shock or injury if misused.

•Do NOT operate the equipment if it is

damaged, malfunctioning or is in an

excessively worn state.

•Do NOT allow others to use the

equipment unless they have read this

manual and are adequately trained.

•Keep packaging away from children -

risk of suffocation!

•Operators must use the equipment

correctly, consider conditions and pay

due care to persons and property.

•Ensure that any property that may be

damaged by equipment failure is not

within the work area / operating range.

General Work Area Safety

•Work areas should be clean and well it.

•Do not operate the equipment if

bystanders, animals etc are within

operating range of the equipment or the

general work area.

•If devices are provided for connecting

dust extraction / collection facilities,

ensure these are connected and used

properly. Dust collection can reduce

dust-related hazards.

General Personal Safety

•Wear appropriate protective equipment

when operating, servicing, or when in

the operating area of the equipment to

help protect from eye and ear injury,

poisoning, burns, cutting and crush

injuries. Protective equipment such as

safety goggles, respirators, non-slip

safety footwear, hard hat, hearing

protection etc should be used for

appropriate equipment / conditions.

Other people nearby should also wear

appropriate personal protective

equipment. Do not wear loose clothing

or jewellery, which can be caught in

moving parts. Keep hair and clothing

away from the equipment.

•Stay alert and use common sense

when operating the equipment. Do not

over-reach. Always maintain secure

footing and balance.

•Do not use the equipment if tired or

under the influence of drugs, alcohol or

medication.

•This equipment is not intended for use

by persons with reduced physical,

sensory or mental capabilities.

General Fuel Safety

•Petrol/fuel/gasoline is extremely

flammable – keep clear of naked flames

or other ignition sources.

•Do not spill fuel. If you spill fuel, wipe it

off the equipment immediately – if fuel

gets on your clothing, change clothing.

•Do NOT smoke near fuel or when

refuelling.

•Always shut off the engine before

refuelling.

•Do NOT refuel a hot engine.

•Open the fuel cap carefully to allow any

pressure build-up in the tank to release

slowly.

•Always refuel in well ventilated areas.

•Always check for fuel leakage. If fuel

leakage is found, do not start or run the

engine until all leaks are fixed.

General Carbon-Monoxide Safety

•Using a combustion engine indoors

CAN KILL IN MINUTES. Engine

exhaust contains carbon-monoxide – a

poison you cannot smell or see.

•Use combustion engines OUTSIDE

only, and far away from windows, doors

and vents.

General Equipment Use and Care

•The equipment is designed for

domestic use only.

•Handle the equipment safely and

carefully.

•Before use, inspect the equipment for

misalignment or binding of moving

parts, loose components, damage or

any other condition that may affect its

operation. If damaged, have the

equipment repaired by an authorised

service centre or technician before use.

•Prevent unintentional starting of the

equipment - ensure equipment and

power switches are in the OFF position

before connecting or moving

equipment. Do not carry equipment

with hands or fingers touching any

controls. Remove any tools or other

items that are not a part of the

equipment from it before starting or

switching on.

•Do not force the equipment. Use the

correct equipment for your application.

Equipment will perform better and be

safer when used within its design and

usage parameters.

•Use the equipment and accessories

etc. in accordance with these

instructions, considering working

conditions and the work to be

performed. Using the equipment for

operations different from those

intended could result in hazardous

situations.

•Always keep equipment components

(engines, hoses, handles, controls,

frames, housings, guards etc) and

accessories (cutting tools, nozzles, bits

etc) properly maintained. Keep the

equipment clean and, where

applicable, properly lubricated.

•Store the equipment out of reach of

children or untrained persons. To avoid

burns or fire hazards, let the equipment

cool completely before transporting or

storing. Never place or store the

equipment near flammable materials,

combustible gases or liquids etc.

•The equipment is not weather-proof,

and should not be stored in direct

sunlight, at high ambient temperatures

or locations that are damp or humid.

•Do not clean equipment with solvents,

flammable liquids or harsh abrasives.

•For specific equipment safety use and

care, see Equipment Safety.

MC4 40V Battery Powered Brush Cutter

General Battery and Charging Safety

•Use only with the batteries and battery

charger specified by the manufacturer.

•When battery is charged, disconnect

the charger from the power supply and

remove the battery from the charger.

•Batteries can explode in the presence

of an ignition source, such as a pilot

light. To reduce the risk of serious

personal injury, never use any cordless

product in the presence of open ﬂame.

Exploding batteries can propel debris

and chemicals.

•Do not use the charger in wet areas or

expose it to rain or water.

•Do not open the battery – danger of

short-circuiting and/or explosion.

•Do not attempt to destroy or

disassemble the battery pack or

remove any of its components.

•Do not touch the battery terminals with

metal objects and/or body parts as

short-circuit and/or personal injury may

result.

•Explosion hazard – protect the battery

against heat; for example, direct

sunlight and fire. Do not store batteries

in vehicles or locations subject to heat.

•Explosion hazard – do not open and/or

short-circuit the battery.

•Poison hazard – battery leakage (liquid

ejection). Under extreme conditions,

liquid may be ejected from the battery –

avoid contact. If contact accidentally

occurs, immediately seek medical

attention, and flush with water. If liquid

contacts eyes, immediately seek

medical attention, flush with clean water

for at least 10 minutes. Liquid ejected

from the battery may cause irritation or

burns.

•Ensure that the battery charger

electrical cord is not subjected to

damage or stress. Do not operate the

battery charger if it has a damaged

electrical cord or plug.

•For best results, charge batteries in

temperatures between 7°C (45°F) and

40°C (104°F).

•Dispose of non-serviceable batteries in

an environmentally responsible manner

and according to local regulations.

General Electrical Safety

•Inspect electrical equipment, extension

cords, power bars, and electrical fittings

for damage or wear before each use.

Repair or replace damaged equipment

immediately.

•Ensure all power sources conform to

equipment voltage requirements and

are disconnected before connecting or

disconnecting equipment.

•When wiring electrically powered

equipment, follow all electrical and

safety codes.

•Wherever possible, use a residual

current device (RCD).

•High voltage / high current power lines

may be present. Use extreme caution

to avoid contact or interference with

power lines. Electrical shock can be

fatal.

•Electrically grounded equipment must

have an approved cord and plug and be

connected to a grounded electrical

outlet.

•Do NOT bypass the ON/OFF switch

and operate equipment by connecting

and disconnecting the electrical cord.

•Do NOT use equipment that has

exposed wiring, damaged switches,

covers or guards.

•Do NOT use electrical equipment in wet

conditions or in damp locations.

•Do NOT use electrical cords to lift,

move or carry equipment.

•Do NOT coil or knot electrical cords,

and ensure electrical cords are not trip

hazards.

General Service Information

•The equipment must be serviced or

repaired at authorised service centres

by qualified personnel only.

•Replacement parts must be original

equipment manufacturer (OEM) to

ensure equipment safety is maintained.

•Do NOT attempt any maintenance or

repair work not described in this

manual.

•After use, the equipment and

components may still be hot – allow the

equipment to cool and disconnect

spark plugs and/or electrical power

sources and/or batteries from it before

making adjustments, changing

accessories or performing repair or

maintenance.

•Do NOT make adjustments while the

equipment is running.

•Perform service related activities in

suitable conditions, such as a

workshop.

•Replace worn, damaged or missing

warning/safety labels immediately.

MC4 40V Battery Powered Brush Cutter

Safety Symbols

The product may have safety warning labels attached to it, explained below. Understand the symbols on

your product and their meanings. If any stickers become unreadable, unattached etc, replace them.

Flammable Material Hazard

Flammable liquids, gases or

substances etc may present.

Avoid ignition sources and

open flames. Danger of fire.

Read User Manual

Read and fully understand

product safety warnings,

operation, procedures etc

before using the product.

Use Hand Protection

Wear appropriate hand

protection and take due care

as the product or use of the

product may present hand

hazards.

Carbon-Monoxide Hazard

Do not use the product in

confined areas or without

adequate ventilation. Carbon-

monoxide poisoning can be

fatal.

Electrocution / Electrical

Shock Hazard

High voltage or high current

electricity may be present or

required by the product. Take

due care when handling

electrical products, cables,

plugs and leads. Electrical

shock can be fatal.

Toxic Fumes hazard

Using the product or by-

products from use may

produce fumes, smoke or

particles that could be harmful

if inhaled. Wear appropriate

breathing protection and have

adequate ventilation.

Explosive Material Hazard

Combustible liquids, gases or

substances etc may be

present. Avoid ignition sources

and open flames. Danger of

explosion.

Cutting / Amputation Hazard

The product may have blades,

edges or mechanical devices

that can cause severe cut

injury to fingers, limbs etc.

Take due care when handling

and using the product.

Crush Hazard

The product may have blades,

edges or mechanical devices

that can cause severe crush

injury to fingers, limbs etc.

Take due care when handling

and using the product.

Single Operator Only

The product must be operated

by a single person only. More

than one person operating the

product may introduce

additional hazards.

Use Face Protection

Wear appropriate full-face

protection and take due care

as the product or use of the

product may present face and

eye hazards.

Use Foot Protection

Wear appropriate foot

protection and take due care

as the product or use of the

product may present foot

hazards.

Use Eye / Ear / Head

Protection

Wear appropriate eye and / or

ear and / or head protection

and take due care as the

product or use of the product

may present eye, hearing and

head hazards.

Running Hazard

Do not run on or near the

product as doing so may

present a fall hazard.

Diving Hazard

Do not dive into the product as

doing so may present a neck /

head injury hazard.

Adult Supervision Required

Always supervise children and

other users of a product to

prevent drowning or injury.

Skin Penetration / Puncture

Hazard

The product may produce

pressure, emit liquids or

objects that can cause severe

injury to fingers, limbs, blood

etc. Take due care when

handling and using the

product.

Hot Surface Hazard

Be aware that the product may

produce high temperatures

and hot surfaces that can

cause burn injuries.

Flying Debris Hazard

Be aware that the product or

use of the product may

present hazards produced by

flying debris. Wear appropriate

clothing and protectiove

devices.

Moving Parts Hazard

Be aware that the product

contains or uses mechanical

devices that move or rotate.

Always wait for moving parts

to stop fully before handling

the product, adjusting,

maintenence etc.

MC4 40V Battery Powered Brush Cutter

Carbon-Monoxide Hazard

Do not use the product in

confined areas or without

adequate ventilation. Carbon-

monoxide poisoning can be

fatal.

Pull Hazard

Be aware that the product

contains or uses mechanical

devices that can pull in objects

and can cause severe injury to

fingers, limbs etc. Take due

care when handling and using

the product.

Slope / Fall Injury Hazard

Be aware that using the

product on sloping surfaces or

in slippery conditions may

present additional dangers

from falls and contact with

blades, moving parts, hot

surfaces etc.

"Slam Dunk" Warning

Do NOT attempt "slam dunk"

maneouvres as this may result

in severe injury due to falling,

product breakage or collapse

etc.

Electrocution / Electrical

Shock Hazard - Outdoor

High voltage or high current

electricity may be present or

required by the product. Do

NOT use in rain, damp or wet

conditions. Electrical shock

can be fatal.

Electrocution / Electrical

Shock Hazard - Disconnect

High voltage or high current

electricity may be present or

required by the product.

Always disconnect the product

from the electrical supply

before handling the product,

adjusting, maintenence etc.

Power Line Electrocution

Hazard

High voltage / high current

power lines may be present.

Use extreme caution to avoid

contact or interference with

power lines. Electrical shock

can be fatal.

"Kick-Back" Hazard

High level of "kick-back"

hazard that can cause the

machine to suddenly rotate

towards operator. Kick-back

injury can be fatal.

Winch Operator Position

Hazard

Do NOT stand between winch

and load. Do NOT use winch

to move people.

Winch Lift Hazard

Do NOT LIFT load vertically.

Use machine to PULL only.

Cable Hazard

Ensure that load bearing cable

is not kinked or knotted.

Winch Cable Hazard

Ensure that there is a

minimum number of cable

coils on winching mechanism.

Winch Hook Hazard

Carry hook to load – do NOT

throw or run.

MC4 40V Battery Powered Brush Cutter

Equipment Safety

Powered garden tools and accessories are high-speed, fast-cutting equipment with exposed

blades that can cause serious or fatal injury if not used correctly or without taking proper

safety precautions. It is extremely important that you read and fully understand the information in this

section and all other safety warnings / recommendations and usage instructions before using the

equipment.

Operator

•If you are untrained in the use of a pole tool or particular accessory, it is highly recommended that you

be trained/instructed by a suitably qualified or experienced user before using the tool.

•Fully understand how to safely operate the tool and the various attachments to avoid "kick-back" or other

hazards. See Operation.

•You must be in good physical condition to use a brush cutter. NEVER operate the tool when tired, or

under the influence of any substance (medication, alcohol, drugs etc) that may impair your judgement,

alertness, physical strength, vision or dexterity.

•Maintain sure-footing and balance always when using or handling the tool and have full awareness of

your surroundings and any possible hazards.

•Prolonged use may lead to health complications, such as carpal tunnel syndrome, due to vibration. To

help reduce the possibility of such conditions, wear gloves, take breaks frequently, keep fingers and

hands warm, and maintain the equipment for optimal operation and minimal vibration. It is recommended

to seek medical advice if you feel numbness or burning sensations in fingers/hands.

Clothing and Protective Equipment – All Operators and Assistants

•Wear approved safety goggles, or safety glasses with adequate top and side protection. In addition to

eye protection, wearing a full-face shield is highly recommended.

•Wear suitable hearing protection.

•Wear an approved safety hard-hat.

•Wear heavy-duty, non-slip leather or protective gloves.

•Wear approved heavy-duty safety boots, with steel toe-caps and non-slip soles.

•Wear suitable overalls or work clothing that fits snugly, but does not restrict movement. Avoid loose

fitting clothing, scarves, jewellery etc and keep long hair contained to avoid getting caught or pulled by

the tool or by tree branches etc.

Work Area Safety

•Ensure that any person, animal etc other than the operator is kept a minimum 25m (75') away from

where the tool is being used or where there is any possibility of being struck by thrown material etc. Be

aware of any property that may be affected by thrown material etc.

Operational Safety

•Do NOT use the tool if the trigger or any safety guard or mechanism is not installed or is not operating

correctly – have the tool inspected and repaired at an authorised service centre before using it again.

•Fully understand how to safely operate the tool and the various attachments to avoid "kick-back" or other

hazards. See Operation.

•Always hold the tool firmly with both hands during operation. Always use the tool handles, straps etc.

•Do NOT use the tool for purposes it is not designed for.

Transportation Safety

•Always STOP the tool and remove the battery and ensure all cutting devices have fully stopped before

transporting or working on it (adjusting etc).

•Fit all blade covers or sheaths whenever transporting or storing the tool.

MC4 40V Battery Powered Brush Cutter

•When transporting the tool in a vehicle, ensure the battery is removed. Secure the tool in an upright

position to prevent tip-over or damage.

•Do NOT store batteries in direct sunlight or hot environments, such as vehicle interiors, for any period.

MC4 40V Battery Powered Brush Cutter

Table of Contents

Safety...................................................................................................................................................2

Safety Symbols ..........................................................................................................................................4

Equipment Safety...............................................................................................................................6

Parts Identification.............................................................................................................................9

Parts Identification – Controls ..................................................................................................................10

Batteries and Battery Charging......................................................................................................11

Charging ..................................................................................................................................................11

Assembly ..........................................................................................................................................12

Connecting Attachments ..........................................................................................................................13

Cutting Guard Assembly....................................................................................................................13

Attaching Cutting Tools............................................................................................................................14

Loading the Grass Cutting "Bump" Head...........................................................................................15

Operation ..........................................................................................................................................16

Using the Controls....................................................................................................................................16

Understanding and Avoiding "Kick-Back" and Other Reactionary Forces................................................17

Maintenance .....................................................................................................................................18

Grass Cutting "Bump" Head..................................................................................................................... 19

Inspection and Cleaning .................................................................................................................... 19

Removal/Installation ..........................................................................................................................19

Cleaning Guidelines...............................................................................................................................20

Transportation and Storage............................................................................................................20

Troubleshooting...............................................................................................................................21

Specifications...................................................................................................................................21

MC4 40V Battery Powered Brush Cutter

Parts Identification

The tool comes with all parts required for normal domestic use, with various attachments supplied depending

on model, or may be purchased separately. A basic toolkit may also be included. It is strongly recommended

that you familiarise yourself with all major components of the tool before using it or performing any

maintenance tasks. Some parts may come pre-assembled.

Products detailed in this manual may vary in appearance, inclusions, description and packaging

from those shown or described.

No. Name No. Name

1

Tool (includes main shaft and trigger etc)

8

Battery

2

Cutting Attachment (includes shaft and motor)

9

Battery Charger (includes cables)

3 Cutter Guard (trimming blade included) 10 Tools / Fasteners (as applicable):

5mm "Torx" Key

Multi-Tool

Drive Washer

Cutter Attachment Cup Washer

Cutter Attachment Nut

Cutter Attachment Washer

Handle Fasteners (3 – includes nuts)

Cutter Guard Fasteners (7 – two types)

4

Strap

5

Handle

6 Grass Cutter "Bump" Head (where applicable)

7 3-Blade Cutter (where applicable)

2

3

4

5

6

7

8

1

9

10

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MC4 40V Battery Powered Brush Cutter

Parts Identification – Controls

Pole tools come with all parts required for normal domestic use, with various attachments supplied

depending on model, or may be purchased separately. A basic toolkit may also be included. It is strongly

recommended that you familiarise yourself with all major components of the tool before using it or performing

any maintenance tasks.

Products detailed in this manual may vary in appearance, inclusions, description and packaging

from those shown or described.

No. Name No. Name

1 Tool Body 5 Trigger

2

Battery (not visible)

6

Trigger Safety Button

3

Low-Speed Button 7 Low-Speed Indicator

4 High-Speed Button

1

4

5

3

6

2

7

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MC4 40V Battery Powered Brush Cutter

Batteries and Battery Charging

Batteries may come supplied in a low-charge condition for shipping reasons – charge before

use. • A battery that is new or has not been used for a long period does not charge to full

capacity until after approximately 5 charge/discharge cycles. • Do not recharge batteries after using them if

they are not to be used for an extended period. • Recharge batteries only as and when required. • If the

battery is warm after use, allow it to cool before charging, otherwise it may not fully charge. • Use only with

the batteries and battery charger specified by the manufacturer. • Batteries can explode in the presence of

an ignition source, such as a pilot light. Never use any cordless product in the presence of open ﬂame.

Exploding batteries can propel debris and chemicals. • Do not use the charger in wet areas or expose it to

rain or water. • Ensure that the battery charger electrical cord is not subjected to damage or stress. Do not

operate the battery charger if it has a damaged electrical cord or plug. • Do not open the battery – danger of

short-circuiting and/or explosion. • Do not touch the battery terminals with metal objects and/or body parts as

short-circuit and/or personal injury may result. • For best results, charge batteries in temperatures between

7°C (45°F) and 40°C (104°F). • Dispose of non-serviceable batteries in an environmentally responsible

manner and according to local regulations. Charging time varies for different battery types depending on

battery capacity and charger output etc. • To prolong battery life, avoid leaving the battery pack on charge for

extended periods (over 30 days without use). • During charging, the battery may become warm and some

noise may be emitted – this is normal.

Charging

Generally, if the tool stops during use, the power reduces,

or the motor slows considerably, it indicates that the

battery needs charging. To remove the battery (A), lift the

battery handle (B) until the battery releases, then pull the

battery from the tool.

Batteries have a display built-in that shows current charge

status. To use the functions, press button (C) on the

battery – charge capacity is shown as green lamps for

25%, 50%, 75% and 100%.

The battery charger has charge status LED indicators that

illuminate and flash in various combinations:

•Green Flash – Charging.

•Green ON – Battery charged.

1. Plug the battery charger power supply (D) into a 240VAC mains electrical outlet and switch on.

2. Slide the battery fully into the battery charger connector (E). The battery charger indicator LEDs will

indicate battery charge status. Charging time varies depending on battery capacity and charger output .

3. When the battery is fully charged, unplug the charger from power supply and disconnect the battery

charger connector from the battery pack.

C

D

E

B

A

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MC4 40V Battery Powered Brush Cutter

Assembly

Typically, due to the modular nature of the design, various attachments may require some assembly. Prior to

assembly, unpack all components and check that all items have been received. The following assembly

instructions may not apply to all models as some are pre-assembled or partially pre-assembled.

Handle and Strap

1. Pull open the handle (A) mounting arms, then place it over the rubber vibration isolator (B) on the tool

main shaft (C). Move the handle to a position where it will be effective and comfortable to use.

2. Secure the handle in position using 3 screws and nuts (D). Tighten the screws using the "Torx" key.

3. Clip the strap (E) to the "eye" in the tool body.

Once the handle is assembled, the tool is ready for use by attaching a cutter etc to it.

A

B

C

D

E

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MC4 40V Battery Powered Brush Cutter

Connecting Attachments

Attachments are connected as follows. Disconnection of parts is a reversal of the connection procedure.

1. Position the shaft of the attachment (A) and main shaft (B) so the triangle marks (X) on each shaft are

aligned.

2. Carefully push the shafts together. Inside are electrical terminals that must connect for the attachment to

function.

3. Bring the collar (C) on the main shaft up to the thread (D) on the attachment shaft, then rotate right

(clockwise) to screw the collar onto the thread. Firmly tighten the collar by hand.

Cutting Guard Assembly

1. Bring the main cutter guard (A) and secondary guard (B) together as shown, then join them using 4

M4x15 screws/washers (C). Tighten the screws using the "Torx" key.

2. Bring the assembled guard into position with the cutter head (D). Align the parts as shown, then secure

the parts from the underside of the guard using 3 M5x10 screws/washers (E). Tighten the screws using a

Phillips head screwdriver.

A

B

C

D

B

C

A

D

E

X

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MC4 40V Battery Powered Brush Cutter

Attaching Cutting Tools

Do NOT attach or detach cutting tools when the engine is running. • Wear suitable gloves

when handling cutting devices. • Always check that the blades or cutting accessories are

undamaged, safe to use and are properly and securely fastened to the machine. • Ensure that brush cutter

and brush saw blades are installed so that they rotate in the direction of the cutting edges. • Do NOT use

cutting equipment that is cracked, bent, chipped or damaged in any way. Replace damaged parts. • The

toothed cutter and brush saw attachments are not designed to be re-sharpened.

Cutting tools may include the following types. Use the cutter appropriate for the job, type of grass/brush etc:

3-Blade Cutter

1. Place the drive washer (A) on to the drive shaft (B) protruding from the attachment head (C). Ensure that

the grooves in the washer align with the splines on the drive shaft.

2. Place the attachment on to the drive washer:

For the brush cutter and saw type attachments:

a. Place the cutter attachment (D) on to the

drive washer. Ensure that direction of the

cutting teeth or blades faces the direction

shown by the blue arrow. Ensure that the

hole in the centre of the attachment sits

squarely on the raised portion of the drive

washer.

b. Place the flange washer (E), then cup washer

(F) over the drive shaft, then secure the

assembly with the nut (G). The thread on the

drive shaft is "left-hand". This means that you

must rotate the nut to the left (anti-clockwise)

to screw it on as shown by the yellow arrow.

Firmly tighten the nut using the supplied spanner. To prevent the drive shaft from rotating as you

tighten the nut, insert a suitable object (H) (Allen key, screwdriver etc) through the hole in the

attachment head and into the hole in the drive washer when tightening – you may need to rotate

the drive washer until the holes are aligned. Remove the object when the nut is secured.

For grass cutting "bump" head:

a. Screw the grass cutting head (I) on to the drive

shaft. The thread on the drive shaft is "left-hand".

This means that you must rotate the grass cutting

head to the left (anti-clockwise) to screw it on as

shown by the yellow arrow. Firmly tighten the

grass cutting head by hand. To prevent the drive

shaft from rotating as you tighten the grass cutting

head, insert a suitable object (H) (Allen key,

screwdriver etc) through the hole in the

attachment head and into the hole in the drive

washer when tightening – you may need to rotate

the drive washer until the holes are aligned.

Remove the object when the grass cutting head is

secured.

I

H

A

D

C

F

G

B

A

B

C

E

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MC4 40V Battery Powered Brush Cutter

Loading the Grass Cutting "Bump" Head

Do NOT attach or detach cutting tools when the engine is

running. • Ensure that parts are cool enough to touch

before attaching or detaching cutting tools. • Do NOT use cutting

equipment that is cracked, bent, chipped or damaged in any way. Replace

damaged parts. • Use 1.6 to 3mm (1/16 to 1/8") plastic cutting line only. Non-plastic cutting line may not

function properly and may damage the machine. • If the grass cutting head is dirty, clean it.

To load the grass cutting bump head with cutting line:

1. Remove the grass cutting head from the drive shaft. The thread on the drive shaft is "left-hand". This

means that you must rotate the grass cutting head to the right (clockwise) to unscrew it. To prevent the

drive shaft from rotating as you loosen the grass cutting head, see here.

2. Place the grass cutting head (A) on a solid surface, then press down and rotate the "bumper" (B) to the

right (clockwise) until the cutting line holes are aligned (X) and you can see through the head.

Note: If there is remaining cutting line in the head, press down and rotate the "bumper" to the left (anti-

clockwise) one step, then pull the cutting line out from either side of the head. Repeat until you can pull the

line out completely from the grass cutting head.

3. Insert the new line (C) through the grass cutting head so that the lengths of line on each side of the head

are the same (in other words, the head is at the centre of the length of cutting line).

4. Hold the grass cutting head firmly, then rotate the "bumper" to the right (clockwise) to wind in the cutting

line. Stop winding when there is approximately 50mm (2") of cutting line outside of the head.

5. Install the grass cutting head.

Video Tutorial:

Loading a Grass Cutting

"Bump" Head

A

X

C

B

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MC4 40V Battery Powered Brush Cutter

Operation

Powered garden tools and accessories are high-speed, fast-cutting equipment with

exposed blades that can cause serious or fatal injury if not used correctly or without

taking proper safety precautions. It is extremely important that you read and fully understand the

information in this section and all other safety warnings / recommendations and usage instructions

before using the equipment. • Always wear suitable protective clothing and equipment when using the

machine. • Inspect the machine before each use and check for wear or damage. If the tool is damaged, have

it inspected and repaired at an authorised service centre before using it again. • If you experience excessive

vibration from the tool during operation, this may indicate wear or damage. It is recommended to have it

inspected and repaired before using it again. • Be aware that once the motor is running, the cutting blades

will be rotating and parts of the tool may be extremely hot.

Note the following recommendations:

•To use line feed action of the grass cutting "bump" head, tap it quickly against the ground while it is

spinning – line will feed out through the spinning action. Excess line will be cut by the trimming blade.

•When using the 3-blade cutter, it is recommended to NOT use the secondary cutting guard.

•Always use the strap, over the shoulder, and adjust it so the tool is comfortable to hold and operate.

Always use both handles to hold

the tool steady.

Use an arc or sweeping motion

when using the tool.

When cutting through thick grass

or brush, cut in several passes.

Using the Controls

•To activate the motor, press and hold the trigger safety button

(A), then squeeze the trigger (B). Once the motor is running,

you can release the safety button.

•To use low-speed, while the motor is running, press the low-

speed button (C) – the low-speed indicator (D) illuminates.

•To use high-speed, while the motor is running, press the high-

speed button (E) Generally, most cutting attachments are

most efficient at high-speed.

•To switch the motor off, release the trigger.

B

D

C

E

A

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MC4 40V Battery Powered Brush Cutter

Understanding and Avoiding "Kick-Back" and Other

Reactionary Forces

Reactionary forces can cause loss of control of the tool, and can result in serious, even fatal

injury – use the tool in ways to avoid reactive forces at all times.

When the cutting attachment or chainsaw is rotating, many forces are created, such as the ability to cut. The

contact point between the cutting tool and object to cut is critical, especially when using the chainsaw

attachment. If the cutting tool is not used correctly, cutting forces may become "reactionary", in that instead

of the cutting tool or chain rotating, a reactionary force is created. Many factors affect the occurrence and

force of reaction, such as cutter speed, contact angle, density of material being cut, and cutting tool

condition.

Kick-Back

"Kick-back" is a reactionary force that causes the tool to rotate against the direction of cut. Kick-back can

also be thought of as the cutters "digging in" to an object and momentarily stop or significantly slow cutter

rotation. For chainsaw attachments, kick-back can occur if the cutters at the tip of the chain bar – the "kick-

back zone", "digging in" to an object and momentarily stop or significantly slow saw chain rotation, which

causes the tool to suddenly and quickly rotate backwards towards the operator. To avoid kick-back:

•Do NOT use the tip of the cutter for cutting or allow it to make contact with any object.

•Always hold the machine firmly with both hands when operating.

•Maintain cutter sharpness.

•Use extreme caution when re-inserting the cutter into an unfinished cut.

•Be alert to branches shifting or other forces that may close over or pinch the cutter.

Pull-In

"Pull-in" is a reactionary force that causes the cutter to pull forward in the direction of cut. Pull-in can also be

thought of as the cutters on the non-cutting side of the cutting attachment being caught, pinched or "digging

in" to an object and momentarily stop or significantly slow cutter rotation, which causes the tool to suddenly

and quickly pull forward in the direction of cut. To avoid pull-in:

•Be aware of objects on the non-cutting side of the cutter and avoid making contact with them.

•Use cutters with greater numbers of teeth or blades.

Push-Back

"Push-back" is a reactionary force that causes the cutter to push backward against the direction of cut. Push-

back can also be thought of as the cutters on the cutting side of the cutting attachment being caught,

pinched or "digging in" to an object and momentarily stop or significantly slow cutter rotation, which causes

the tool to suddenly and quickly push away from the direction of cut. To avoid push-back:

•Cut one piece of timber at a time.

•Avoid twisting the cutter when withdrawing it from material.

Kick-Back

Pull-In

Push-Back

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MC4 40V Battery Powered Brush Cutter

Maintenance

Do NOT perform and maintenance procedures with the battery installed in the tool. •

The machine should be cool enough to touch before performing maintenance activities. •

Some maintenance activities may be beyond the scope of some users. Do NOT attempt procedures that you

are not comfortable with, or do not have the necessary tools, experience or knowledge for – take the unit to

an authorised service centre or qualified technician for servicing. • Harsh operating environments such as

extreme temperatures, dust etc may necessitate more frequent maintenance. • Failure to follow the

maintenance schedule, using incorrect or non-compatible accessories or replacements parts, or

general negligence may result in making the product warranty void.

To keep the machine performing at optimal efficiency, regular checks and maintenance is required.

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MC4 40V Battery Powered Brush Cutter

Grass Cutting "Bump" Head

A dirty grass cutting "bump" head may not feed out cutting line properly or reliably. • If the grass

cutting head is no longer serviceable, replace it. • If there is cutting line in the head, it may unravel

when the head is disassembled. It is recommended to remove the cutting line. Load the cutting line after

cleaning and reassembling the grass cutting head.

Inspection and Cleaning

Inspect the grass cutting "bump" head for dirtiness and debris etc that may affect the line feeding action.

Clean or replace the grass cutting head as necessary. To clean the grass cutting "bump" head:

•Thoroughly clean the base (A) and "bumper" assembly (B) using a brush or similar to remove all traces

of grass, dirt etc from the parts. If desired, wash the parts in warm water and mild detergent, then rinse

and dry.

Removal/Installation

1. Remove the grass cutting head from the drive shaft. The thread on the drive shaft is "left-hand". This

means that you must rotate the grass cutting head to the right (clockwise) to unscrew it. To prevent the

drive shaft from rotating as you loosen the grass cutting head, see here.

2. Place the grass cutting head on a solid surface, then press in a locking tab (X) on the side of the head

until the upper and lower sections of the head can be separated.

To assemble, place the bumper assembly over the base – ensure that the holes in the sides of the bumper

assembly are aligned with the locking tabs in the base – then press the cover down until it "clips" into place

and is securely held by the locking tabs.

Check that the bumper can be moved in and out of the head and can be rotated in either direction – if not,

the parts are not clean or not assembled correctly. To install the grass cutting head, see here.

X

A

B

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MC4 40V Battery Powered Brush Cutter

Cleaning Guidelines

Do NOT expose any part of the tool to water. Exposure to water may create an electrical

shock hazard and / or may damage the tool electronics. Exposing the tool to water or

other liquids may void any product warranty. • Remove the battery from the tool before cleaning. • Do not

use solvents, chemicals or abrasives when cleaning the tool, as some surfaces may be damaged. • Wear

gloves or use suitable tools to assist in cleaning – do not use bare hands. • Clean the tool after every use to

ensure best performance and longest service life. • Do NOT store batteries in direct sunlight or hot

environments, such as vehicle interiors, for any period.

•Use a slightly damp cloth and mild detergent for cleaning.

•Use a brush for parts that are difficult to reach.

•Ensure air vents and surfaces designed for heat dissipation are clean and free of obstructions or debris.

•Ensure all guards and safety devices are clean and functioning correctly.

•Ensure that spring-loaded parts, such as the trigger, return to the normal position when released.

•Ensure that all control cables, levers, switches etc are clean and operate normally and smoothly.

Cleaning and Lubricating Cutters

Cutters and blades must be cleaned and lubricated after every use. Failure to do so will reduce

cutting performance and may also damage the machine. Faults or failure resulting from not

maintaining the cutting blades correctly is not covered under warranty.

•Use a non-metallic brush to remove debris from all surfaces of the cutting blades. Wipe away any sap

etc from all blade surfaces and ensure the blades are dry.

•Spray the cutting blades with spray lubricant or wipe down with light machine oil.

Transportation and Storage

Always ensure that the tool is cool enough to touch before transporting or storing. • Always

transport and store the tool with the battery removed. • Do NOT store the tool or battery in

direct sunlight or

Preparing for Transport and Storage

•Clean the equipment before transport or storage.

•Ensure the battery is removed.

•When transporting the tool in a vehicle, secure the tool in an upright position to prevent tip-over or

damage.

•Store the tool in a dry, well-ventilated area that is not exposed to direct sunlight or excessive heat, and

out of the reach of children.

•Cover the equipment to protect it.

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Baumr-AG BCTCLSBMRABC4 User manual

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