makita GCU01 Cordless Chain Saw Instruction Manual

: June 13, 2024
: Makita

Table of Contents

GCU01 Cordless Chain Saw
Read User Manual Online (PDF format)
Download This Manual (PDF format)

GCU01 Cordless Chain Saw

INSTRUCTION MANUAL

Cordless Chain Saw

GCU01
GCU02
GCU03

IMPORTANT: Read Before Using.

SPECIFICATIONS

Model:

|

GCU01

|

GCU02

|

GCU03

---|---|---|---

Overall length

(without guide bar and battery)

|

266 mm

(10-1/2″)

Rated voltage

|

D.C. 36 V – 40 V max

Net weight

|

*1

|

2.6 kg (5.7 lbs)

*2

|

3.9 – 4.6 kg

(8.6 – 10.1 lbs)

|

4.0 – 4.7 kg (8.8 – 10.4 lbs)

Standard guide bar length

|

300 mm

(12″)

|

350 mm

(14″)

|

400 mm

(16″)

Recommended guide bar length

|

with 90PX

|

300 – 400 mm

(12″ – 16″)

with 91PX

|

300 – 350 mm

(12″ – 14″)

|

–

Applicable saw chain type

(refer to the table below)

|

90PX

91PX

|

90PX

Standard sprocket

|

Number of teeth

|

6

Pitch

|

3/8″

Chain speed

|

0 – 24.8 m/s

(0 – 1,490 m/min)

(0 – 4,880 ft/min)

Chain oil tank volume

|

200 cm3 (6.8 fl oz)

• Due to our continuing program of research and development, the specifications herein are sub ject to change without notice.

• Specifications may differ from country to country.

• The weight may differ depending on the attachment(s), including the battery cartridge. The light est and heaviest combination, according to EPTA-Procedure 01/2014, are shown in the table.

Applicable battery cartridge and charger

Battery cartridge

|

BL4020 / BL4025 / BL4040 / BL4050F * : Recommended battery

---|---

Charger

|

DC40RA / DC40RB / DC40RC

• Some of the battery cartridges and chargers listed above may not be available depending on your region of residence.

WARNING: Only use the battery cartridges and chargers listed above. Use of any other battery cartridges and chargers may cause injury and/or fire.

NOTE: We recommend using the recommended batteries to fully obtain the performance of this tool.

2 ENGLISH

Saw chain, guide bar, and sprocket combination

Saw chain type

|

90PX

---|---

Number of drive links

|

46

|

52

|

56

Guide bar

|

Guide bar length

|

300 mm

(12″)

|

350 mm

(14″)

|

400 mm

(16″)

Cutting length

|

281 mm

(11-1/8″)

|

337 mm

(13-1/4″)

|

375 mm

(14-3/4″)

Part No.

|

165245-8

|

165246-6

|

165247-4

Pitch

|

3/8″

Gauge

|

1.1 mm

(0.043″)

Type

|

Sprocket nose bar

Sprocket

|

Number of teeth

|

6

Pitch

|

3/8″

Saw chain type

|

91PX

---|---

Number of drive links

|

46

|

52

Guide bar

|

Guide bar length

|

300 mm

(12″)

|

350 mm

(14″)

Cutting length

|

281 mm

(11-1/8″)

|

337 mm

(13-1/4″)

Part No.

|

165200-0

|

165201-8

Pitch

|

3/8″

Gauge

|

1.3 mm

(0.050″)

Type

|

Sprocket nose bar

Sprocket

|

Number of teeth

|

6

Pitch

|

3/8″

WARNING: Use appropriate combination of the guide bar and saw chain. Otherwise personal injury may result.

SAFETY WARNINGS General power tool safety warnings

WARNING: Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury.

Save all warnings and instructions for future reference. The term “power tool” in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.

Work area safety

1. Keep work area clean and well lit. Cluttered or dark areas invite accidents.

2. Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Power tools create sparks which may ignite the dust or fumes.

3. Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.

Electrical Safety

1. Power tool plugs must match the outlet. Never modify the plug in any way. Do not use any adapter plugs with earthed (grounded) power tools. Unmodified plugs and matching outlets will reduce risk of electric shock.

2. Avoid body contact with earthed or grounded surfaces, such as pipes, radia tors, ranges and refrigerators. There is an increased risk of electric shock if your body is earthed or grounded.

3 ENGLISH

3. Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.

4. Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool. Keep cord away from heat, oil, sharp edges or moving parts. Damaged or entangled cords increase the risk of electric shock.

5. When operating a power tool outdoors, use an extension cord suitable for out door use. Use of a cord suitable for outdoor use reduces the risk of electric shock.

6. If operating a power tool in a damp location is unavoidable, use a ground fault circuit interrupter (GFCI) protected supply. Use of a GFCI reduces the risk of electric shock.

Personal Safety

1. Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use a power tool while you are tired or under the influence of drugs, alcohol or medication. A moment of inattention while operating power tools may result in serious personal injury.

2. Use personal protective equipment. Always wear eye protection. Protective equipment such as a dust mask, non-skid safety shoes, hard hat or hearing protection used for appropriate conditions will reduce personal injuries.

3. Prevent unintentional starting. Ensure the switch is in the off-position before connecting to power source and/or bat tery pack, picking up or carrying the tool. Carrying power tools with your finger on the switch or energizing power tools that have the switch on invites accidents.

4. Remove any adjusting key or wrench before turning the power tool on. A wrench or a key left attached to a rotating part of the power tool may result in personal injury.

5. Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations.

6. Dress properly. Do not wear loose clothing or jewellery. Keep your hair, clothing, and gloves away from moving parts. Loose clothes, jewellery or long hair can be caught in moving parts.

7. If devices are provided for the connection of dust extraction and collection facilities, ensure these are connected and properly used. Use of dust collection can reduce dust-related hazards.

Power tool use and care

1. Do not force the power tool. Use the correct power tool for your application. The correct power tool will do the job better and safer at the rate for which it was designed.

2. Do not use the power tool if the switch does not turn it on and off. Any power tool that cannot be controlled with the switch is dangerous and must be repaired.

3. Disconnect the plug from the power source and/or the battery pack from the power tool before making any adjustments, changing accessories, or storing power tools. Such preventive safety measures reduce the risk of starting the power tool accidentally.

4. Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power tool or these instructions to operate the power tool. Power tools are dangerous in the hands of untrained users.

5. Maintain power tools. Check for misalignment or binding of moving parts, break age of parts and any other condition that may affect the power tool’s operation. If damaged, have the power tool repaired before use. Many accidents are caused by poorly maintained power tools.

6. Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.

7. Use the power tool, accessories and tool bits etc. in accordance with these instructions, taking into account the working conditions and the work to be performed. Use of the power tool for operations different from those intended could result in a hazardous situation.

Battery tool use and care

1. Recharge only with the charger specified by the manufacturer. A charger that is suit able for one type of battery pack may create a risk of fire when used with another battery pack.

2. Use power tools only with specifically designated battery packs. Use of any other battery packs may create a risk of injury and fire.

3. When battery pack is not in use, keep it away from other metal objects, like paper clips, coins, keys, nails, screws or other small metal objects, that can make a connection from one terminal to another. Shorting the battery terminals together may cause burns or a fire.

4. Under abusive conditions, liquid may be ejected from the battery; avoid contact. If contact accidentally occurs, flush with water. If liquid contacts eyes, addition ally seek medical help. Liquid ejected from the battery may cause irritation or burns.

5. Do not use a battery pack or tool that is damaged or modified. Damaged or modified batteries may exhibit unpredictable behavior resulting in fire, explosion or risk of injury.

6. Do not expose a battery pack or tool to fire or excessive temperature. Exposure to fire or temperature above 130 °C may cause explosion.

7. Follow all charging instructions and do not charge the battery pack or tool outside the temperature range specified in the instructions. Charging improperly or at temperatures outside the specified range may damage the battery and increase the risk of fire.

Service

1. Have your power tool serviced by a qualified repair person using only identical replacement parts. This will ensure that the safety of the power tool is maintained.

2. Follow instruction for lubricating and changing accessories.

3. Keep handles dry, clean and free from oil and grease.

4. Do not modify or attempt to repair the appliance or the battery pack except as indicated in the instructions for use and care.

Cordless Chain saw safety warnings

1. Keep all parts of the body away from the saw chain when the chain saw is operating. Before you start the chain saw, make sure the saw chain is not contacting any thing. A moment of inattention while operating chain saws may cause entanglement of your clothing or body with the saw chain.

2. Always hold the chain saw with your right hand on the top handle and your left hand on the front handle. Holding the chain saw with a reversed hand configuration increases the risk of personal injury and should never be done.

3. Hold the power tool by insulated gripping surfaces only, because the saw chain may contact hidden wiring. Saw chains contacting a “live” wire may make exposed metal parts of the power tool “live” and could give the operator an electric shock.

4. Wear safety glasses and hearing protection. Further protective equipment for head, hands, legs and feet is recommended. Adequate protective clothing will reduce personal injury by flying debris or accidental contact with the saw chain.

5. Do not operate a chain saw, on a ladder, from a rooftop, or any unstable support. Operation of a chain saw in this manner could result in serious personal injury.

6. Always keep proper footing and operate the chain saw only when standing on fixed, secure and level surface. Slippery or unstable surfaces may cause a loss of balance or control of the chain saw.

7. When cutting a limb that is under tension be alert for spring back. When the tension in the wood fibres is released the spring loaded limb may strike the operator and/or throw the chain saw out of control.

8. Use extreme caution when cutting brush and saplings. The slender material may catch the saw chain and be whipped toward you or pull you off balance.

9. Carry the chain saw by the top handle with the chain saw switched off and away from your body. When transporting or storing the chain saw, always fit the guide bar cover. Proper handling of the chain saw will reduce the likelihood of accidental contact with the moving saw chain.

10. Follow instructions for lubricating, chain tensioning and changing accessories. Improperly tensioned or lubricated chain may either break or increase the chance for kickback.

11. Keep handles dry, clean, and free from oil and grease. Greasy, oily handles are slippery causing loss of control.

12. Cut wood only. Do not use chain saw for purposes not intended. For example: do not use chain saw for cutting plastic, masonry or non-wood building materials. Use of the chain saw for operations different than intended could result in a hazardous situation.

13. Causes and operator prevention of kickback:

Kickback may occur when the nose or tip of the guide bar touches an object, or when the wood closes in and pinches the saw chain in the cut. Tip contact in some cases may cause a sudden reverse reaction, kick ing the guide bar up and back towards the operator. Pinching the saw chain along the top of the guide bar may push the guide bar rapidly back towards the operator. Either of these reactions may cause you to lose con trol of the saw which could result in serious personal injury. Do not rely exclusively upon the safety devices built into your saw. As a chain saw user, you should take several steps to keep your cutting jobs free from accident or injury.

5 ENGLISH

Kickback is the result of tool misuse and/or incorrect operating procedures or conditions and can be avoided by taking proper pre cautions as given below:

• Maintain a firm grip, with thumbs and fingers encircling the chain saw handles, with both hands on the saw and position your body and arm to allow you to resist kickback forces. Kickback forces can be controlled by

the operator, if proper precautions are taken. Do not let go of the chain saw.

• Do not overreach and do not cut above shoulder height. This helps prevent unintended tip contact and enables better control of the chain saw in unexpected situations.

• Only use replacement bars and chains specified by the manufacturer. Incorrect replacement bars and chains may cause chain breakage and/ or kickback.

• Follow the manufacturer’s sharpening and maintenance instructions for the saw chain. Decreasing the depth gauge height can lead to increased kickback.

14. Do not operate a chain saw in a tree unless you have been specifically trained to do so. Operation of a chain saw in a tree without proper training could increase the risk of serious personal injury.

Additional Safety Instructions

Operation

1. When you use the tool on muddy ground, wet slope, or slippery place, pay attention to your footing.

2. Do not submerge the tool into a puddle.

3. Do not leave the tool unattended out doors in the rain.

4. Keep handles dry, clean, and free from oil and grease. Greasy, oily handles are slippery causing loss of control.

5. Before starting work, check that the chain saw is in proper working order and that its condition complies with the safety regulations. Check in particular that:

• The chain brake is working properly;

• The run-down brake is working properly;

• The bar and the sprocket cover are fitted correctly;

• The chain has been sharpened and tensioned in accordance with the regulations.

6. Do not start the chain saw with the chain cover being installed on it. Starting the chain saw with the chain cover being installed on it may cause the chain cover to thrown out forward resulting in personal injury and damage to objects around the operator.

Electrical and battery safety

1. Avoid dangerous environment. Don’t use the tool in dump or wet locations or expose it to rain. Water entering the tool will increase the risk of electric shock.

2. Do not dispose of the batteries in a fire. The cell may explode. Check with local codes for possible special disposal instructions.

3. Do not open or mutilate the battery(ies). Released electrolyte is corrosive and may cause damage to the eyes or skin. It may be toxic if swallowed.

4. Do not charge battery in rain, or in wet locations.

5. Do not charge the battery outdoors.

6. Do not handle charger, including charger plug, and charger terminals with wet hands.

7. Do not replace the battery in the rain. Maintenance and storage

1. When storing the tool, avoid direct sunlight and rain, and store it in a place where it does not get hot or humid.

Top handle chainsaw specific safety warnings

1. Perform cleaning and maintenance before storage in accordance with the instruction manual.

2. Ensure safe positioning of the chain saw during car transportation to avoid fuel or chain oil leakage, damage to the tool and personal injury.

3. Regularly check the functionality of chain brake.

4. Do not fill the chain oil near fire. Never smoke when you fill the chain oil.

5. National regulation may restrict the use of the chain saw.

6. If the equipment gets heavy impact or fall, check the condition before continuing work. Check the controls and safety devices for malfunction. If there is any damage or doubt, ask our authorized service center for the inspection and repair.

7. Always activate the chain brake before starting the chain saw.

8. Hold the saw firmly in place to avoid skating (skid movement) or bouncing of the saw when starting a cut.

9. At the end of the cut, be careful to keep your balance due to the “drop”.

10. Take into account the direction and speed of the wind. Avoid sawdust and chain oil mist.

Protective equipment

1. In order to avoid head, eye, hand or foot injuries as well as to protect your hearing the following protective equipment must be used during operation of the chain saw:

— The kind of clothing should be appropriate, i. e. it should be tight-fitting but not be a hindrance. Do not wear jewelry or clothing which could become entangled with bushes or shrubs. If you have long hair, always wear a hairnet!

— It is necessary to wear a protective helmet whenever working with the chain saw. The protective helmet is to be checked in regular intervals for damage and is to be replaced after 5 years at the latest. Use only approved protective helmets.

— The face shield of the protective helmet (or the goggles) protects against sawdust and wood chips. During operation of the chain saw always wear a goggle or a face shield to prevent eye injuries.

— Wear adequate noise protection equipment (ear muffs, ear plugs, etc.) — The protective jacket consists of 22 layers of nylon and protects the opera tor against cuts. It is always to be worn when working from elevated platforms (cherry pickers, lifts) or from platforms mounted on ladders.

— The protective brace and bib overall is made of a nylon fabric with 22 layers and protects against cuts. We strongly recommend its use.

— Protective gloves made of thick leather are part of the prescribed equipment and must always be worn during operation of the chain saw.

— During operation of the chain saw safety shoes or safety boots fitted with anti skid sole, steel toe caps and protection for the leg must always to be worn. Safety shoes equipped with a protective layer provide protection against cuts and ensure a secure footing.

Vibration

1. Individuals with poor circulation who are exposed to excessive vibration may experience injury to blood vessels or the nervous system. Vibration may cause the following symptoms to occur in the fingers, hands or wrists: “Falling asleep” (numbness), tingling, pain, stabbing sensation, alteration of skin colour or of the skin. If any of these symptoms occur, see a physician! To reduce the risk of “white finger disease”, keep your hands warm during operation and well maintain the equipment and accessories.

SAVE THESE INSTRUCTIONS.

WARNING: DO NOT let comfort or familiarity with product (gained from repeated use) replace strict adherence to safety rules for the subject product. MISUSE or failure to follow the safety rules stated in this instruction manual may cause serious personal injury.

Symbols

The followings show the symbols used for tool. volts direct current meter per second feet per minute parts number of applicable saw chain and guide bar

Important safety instructions for battery cartridge

1. Before using battery cartridge, read all instructions and cautionary markings on (1) battery charger, (2) battery, and (3) product using battery.

2. Do not disassemble or tamper with the battery cartridge. It may result in a fire, excessive heat, or explosion.

3. If operating time has become excessively shorter, stop operating immediately. It may result in a risk of over heating, possible burns and even an explosion.

4. If electrolyte gets into your eyes, rinse them out with clear water and seek medical attention right away. It may result in loss of your eyesight.

5. Do not short the battery cartridge: (1) Do not touch the terminals with any conductive material.

(2) Avoid storing battery cartridge in a container with other metal objects such as nails, coins, etc.

(3) Do not expose battery cartridge to water or rain.

A battery short can cause a large current flow, overheating, possible burns and even a breakdown.

6. Do not store and use the tool and battery cartridge in locations where the tempera ture may reach or exceed 50 °C (122 °F).

7. Do not incinerate the battery cartridge even if it is severely damaged or is com pletely worn out. The battery cartridge can explode in a fire.

8. Do not nail, cut, crush, throw, drop the battery cartridge, or hit against a hard object to the battery cartridge. Such con duct may result in a fire, excessive heat, or explosion.

9. Do not use a damaged battery.

10. The contained lithium-ion batteries are subject to the Dangerous Goods Legislation requirements.

For commercial transports e.g. by third parties, forwarding agents, special requirement on packaging and labeling must be observed.

For preparation of the item being shipped, consulting an expert for hazardous material is required. Please also observe possibly more detailed national regulations.

Tape or mask off open contacts and pack up the battery in such a manner that it cannot move around in the packaging.

11. When disposing the battery cartridge, remove it from the tool and dispose of it in a safe place. Follow your local regulations relating to disposal of battery.

12. Use the batteries only with the products specified by Makita. Installing the batteries to non-compliant products may result in a fire, excessive heat, explosion, or leak of electrolyte.

13. If the tool is not used for a long period of time, the battery must be removed from the tool.

14. During and after use, the battery cartridge may take on heat which can cause burns or low temperature burns. Pay attention to the handling of hot battery cartridges.

15. Do not touch the terminal of the tool immediately after use as it may get hot enough to cause burns.

16. Do not allow chips, dust, or soil stuck into the terminals, holes, and grooves of the battery cartridge. It may cause heating, catching fire, burst and malfunction of the tool or battery cartridge, resulting in burns or personal injury.

17. Unless the tool supports the use near high-voltage electrical power lines, do not use the battery cartridge near a high-voltage electrical power lines. It may result in a malfunction or breakdown of the tool or battery cartridge.

18. Keep the battery away from children.

SAVE THESE INSTRUCTIONS.

CAUTION: Only use genuine Makita batteries. Use of non-genuine Makita batteries, or batteries that have been altered, may result in the battery bursting causing fires, personal injury and damage. It will also void the Makita warranty for the Makita tool and charger.

Tips for maintaining maximum battery life

1. Charge the battery cartridge before completely discharged. Always stop tool operation and charge the battery cartridge when you notice less tool power.

2. Never recharge a fully charged battery cartridge. Overcharging shortens the battery service life.

3. Charge the battery cartridge with room temperature at 10 °C – 40 °C (50 °F – 104 °F). Let a hot battery cartridge cool down before charging it.

4. When not using the battery cartridge, remove it from the tool or the charger. 5. Charge the battery cartridge if you do not use it for a long period (more than six months)

5. Charge the battery cartridge if you do not use it for a long period (more than six months).

PARTS DESCRIPTION

saw parts

1

|

Top handle

|

2

|

Lock-off lever

|

3

|

Switch trigger

---|---|---|---|---|---

4

|

Front hand guard

|

5

|

Guide bar

|

6

|

Saw chain

7

|

Chain catcher

|

8

|

Retaining nut

|

9

|

Chain adjusting screw

10

|

Battery cartridge

|

11

|

Main power lamp

|

12

|

Main power switch

13

|

Cap

|

14

|

Adjusting screw (for oil pump)

|

15

|

Carabiner

16

|

Front handle

|

17

|

Oil tank cap

|

18

|

Spike bumper

19

|

Guide bar cover

|

–

|

–

|

–

|

–

FUNCTIONAL DESCRIPTION

CAUTION: Always be sure that the tool
is switched off and the battery cartridge is
removed before adjusting or checking function
on the tool.

Installing or removing battery cartridge

CAUTION: Always switch off the tool
before installing or removing of the battery
cartridge.
CAUTION: Hold the tool and the battery
cartridge firmly when installing or removing
battery cartridge. Failure to hold the tool and
the battery cartridge firmly may cause them to
slip off your hands and result in damage to the
tool and battery cartridge and a personal injury

1. Red indicator 2. Button 3. Battery cartridge

To remove the battery cartridge, slide it from the
tool while sliding the button on the front of the
cartridge.
To install the battery cartridge, align the tongue
on the battery cartridge with the groove in the
housing and slip it into place. Insert it all the way
until it locks in place with a little click. If you can
see the red indicator as shown in the figure, it is
not locked completely.

CAUTION: Always install the battery cartridge
fully until the red indicator cannot be
seen. If not, it may accidentally fall out of the tool,
causing injury to you or someone around you.
CAUTION: Do not install the battery cartridge
forcibly. If the cartridge does not slide
in easily, it is not being inserted correctly.

Indicating the remaining battery capacity

Press the check button on the battery cartridge
to indicate the remaining battery capacity. The
indicator lamps light up for a few seconds.

NOTE: Depending on the conditions of use
and the ambient temperature, the indication
may differ slightly from the actual capacity.
NOTE: The first (far left) indicator lamp will
blink when the battery protection system
works.

Tool / battery protection system

The tool is equipped with a tool/battery protection
system. This system automatically cuts off
power to the motor to extend tool and battery life.
The tool will automatically stop during operation
if the tool or battery is placed under one of the
following conditions:

Overload protection

When the battery is operated in a manner that
causes it to draw an abnormally high current,
the tool automatically stops and the main power
lamp blinks in green. In this situation, turn the
tool off and stop the application that caused the
tool to become overloaded. Then turn the tool on
to restart.

Overheat protection

When the tool or battery is overheated, the tool
stops automatically and the main power lamp
lights up in red. In this case, let the tool and battery
cool before turning the tool on again.

NOTE: In high temperature environment, the
overheat protection likely to work and the tool
stops automatically.

Overdischarge protection

When the battery capacity is not enough, the tool
stops automatically and the main power lamp
blinks in red. In this case, remove the battery
from the tool and charge the battery.

Protections against other causes

Protection system is also designed for other
causes that could damage the tool and allows
the tool to stop automatically. Take all the following
steps to clear the causes, when the tool
has been brought to a temporary halt or stop in
operation.
1. Turn the tool off, and then turn it on again to
restart.
2. Charge the battery(ies) or replace it/them
with recharged battery(ies).
3. Let the machine and battery(ies) cool down.
If no improvement can be found by restoring
protection system, then contact your local Makita
Service Center.
NOTICE: If the tool stops due to a cause not
described above, refer to the section for
troubleshooting.

Main power switch

WARNING: Always turn off the main
power switch when not in use.
To turn on the tool, press the main power switch.
The main power lamp lights up in green. To turn
off, press the main power switch again.

NOTE: The main power lamp blinks in green if
the switch trigger is pulled under unoperatable
conditions. The lamp blinks in one of the following
conditions.
• When you turn on the main power switch
while holding down the lock-off lever and
the switch trigger.
• When you pull the switch trigger while the
chain brake is applied.
• When you release the chain brake while
holding down the lock-off lever and pulling
the switch trigger.

NOTE: This tool employs the auto power-off
function. To avoid unintentional start up, the
main power switch will automatically shut
down when the switch trigger is not pulled for
a certain period after the main power switch is
turned on.

Switch action

WARNING: For your safety, this tool is
equipped with lock-off lever which prevents
the tool from unintended starting. NEVER
use the tool if it runs when you simply
pull the switch trigger without pressing
the lock-off lever. Return the tool to our
authorized service center for proper repairs
BEFORE further usage.

WARNING: NEVER tape down or defeat
purpose and function of lock-off lever.

CAUTION: Before installing the battery
cartridge into the tool, always check to see
that the switch trigger actuates properly
and returns to the “OFF” position when
released.

NOTICE: Do not pull the switch trigger hard
without pressing the lock-off lever. This can
cause switch breakage.

NOTE: When you keep pulling the switch trigger
while the tool is under almost no load, the
rotation speed of the tool decreases and the
main power lamp blinks in green. In this case,
release the switch trigger, and then pull the
switch trigger again.

To prevent the switch trigger from being accidentally
pulled, a lock-off lever is provided. To
start the tool, depress the lock-off lever and pull
the switch trigger. The tool speed increases
by increasing pressure on the switch trigger.
Release the switch trigger to stop.

Checking the chain brake

CAUTION: Hold the chain saw with both
hands when switching it on. Hold the top
handle with your right hand, the front handle
with your left. The guide bar and the
saw chain must not be in contact with any
object.
CAUTION: Should the saw chain not stop
immediately when this test is performed,
the chain saw may not be used under any
circumstances. Consult our authorized
service center.

1. Press the lock-off lever, then pull the switch
trigger. The saw chain starts immediately.
2. Push the front hand guard forwards with the
back of your hand. Make sure that the chain saw
comes to an immediate standstill.

► 1. Front hand guard 2. Unlocked position 3. Locked position

Checking the run-down brake

CAUTION: If the saw chain does not stop
within two seconds in this test, stop using
the chain saw and consult our authorized
service center.

Run the chain saw then release the switch trigger
completely. The saw chain must come to a
standstill within two seconds.

Adjusting the chain lubrication

You can adjust the oil pump feed rate with the
adjusting screw using the universal wrench. The
amount of oil can be adjusted in 3 steps. Open
the cap to adjust the adjusting screw.

► 1. Cap 2. Adjusting screw

Carabiner (rope attachment point)

You can hang the tool by attaching the rope to
the carabiner. Pull up the carabiner, and then tie
it with the rope.

Spike bumper

The tool is equipped with the spike bumper as
standard. For replacement of the spike bumper,
ask Makita Authorized Service Centers.
When you perform the cutting operation, engage
the spike bumper with the trunk and use it as a
lever.

Electronic function

The tool is equipped with the electronic functions
for easy operation.
• Electric brake
This tool is equipped with an electric brake.
If the tool consistently fails to quickly stop
after the switch trigger is released, have the
tool serviced at a Makita service center.

ASSEMBLY

CAUTION: Always be sure that the tool
is switched off and the battery cartridge is
removed before carrying out any work on
the tool.
CAUTION: Do not touch the saw chain
with bare hands. Always wear gloves when
handling the saw chain.

Installing or removing saw chain

CAUTION: The saw chain and the guide
bar are still hot just after the operation. Let
them cool down enough before carrying out
any work on the tool.
CAUTION: Carry out the procedure of
installing or removing saw chain in a clean
place free from sawdust and the like.

Installing the saw chain

To install the saw chain, perform the following steps:
1. Release the chain brake by pulling the front hand guard.
2. Loosen the chain adjusting screw, then the retaining nut.

► 1. Sprocket cover 2. Chain adjusting screw 3. Retaining nut

3. Remove the sprocket cover.
4. Check the direction of the saw chain. Match
the direction of the saw chain with that of the
mark on the chain saw body.

5. Fit one end of the saw chain on the top of
the guide bar.
6. Fit the other end of the saw chain around
the sprocket, then attach the guide bar to the
chain saw body, aligning the hole on the guide
bar with the pin on the chain saw body.

7. Insert the protrusion and the pin on the
sprocket cover to the chain saw body, and then
close the cover so that the bolt and pin on the
chain saw body meet their counterparts on the
cover.

8. Tighten the retaining nut to secure the
sprocket cover, then loosen it a bit for tension
adjustment.

After installing the saw chain, adjust the saw
chain tension by referring to the section for
adjusting saw chain tension.

Removing the saw chain

To remove the saw chain, perform the following
steps:
1. Release the chain brake by pulling the front
hand guard.
2. Loosen the chain adjusting screw, then the
retaining nut.

3. Remove the sprocket cover then remove
the saw chain and guide bar from the chain saw
body.

Adjusting saw chain tension

CAUTION: Do not tighten the saw chain
too much. Excessively high tension of saw
chain may cause breakage of saw chain and
wear of the guide bar.
CAUTION: A chain which is too loose
can jump off the bar and it may cause an
injury accident.

The saw chain may become loose after many
hours of use. From time to time check the saw
chain tension before use.
1. Release the chain brake by pulling the front
hand guard.
2. Loosen the retaining nut a bit to loosen the
sprocket cover lightly.

3. Lift up the guide bar tip slightly and adjust
the chain tension. Turn the chain adjusting screw
clockwise to tighten, turn it counterclockwise to
loosen.
Tighten the saw chain until the lower side of the
saw chain fits in the guide bar rail as illustrated.

4. Keep holding the guide bar lightly and
tighten the sprocket cover.
Make sure that the saw chain does not loose at
the lower side.
5. Tighten the retaining nut to secure the
sprocket cover.

OPERATION

NOTICE: When filling the chain oil for the
first time, or refilling the tank after it has
been completely emptied, add oil up to the
bottom edge of the filler neck. The oil delivery
may otherwise be impaired.
NOTICE: Use the saw chain oil exclusively
for Makita chain saws or equivalent oil
available in the market.
NOTICE: Never use oil including dust and
particles or volatile oil.
NOTICE: When pruning trees, use botanical
oil. Mineral oil may harm trees.
NOTICE: Before the cutting operation,
make sure that the provided oil tank cap is
screwed in place.

Saw chain is automatically lubricated when the
tool is in operation. Check the amount of remaining
oil in the oil tank periodically through the oil
inspection window.

To refill the tank, lay the chain saw on its side,
then push the button on the oil tank cap so that
the button on the other side stands up, and then
remove the oil tank cap by turning it.
The proper amount of oil is 200 ml (6.8 fl oz).
After refilling the tank, make sure that the oil tank
cap is tightened securely.

NOTE: If it is difficult to remove the oil tank
cap, insert the box wrench into the slot of the
oil tank cap, and then remove the oil tank cap
by turning it counterclockwise.

After refilling, hold the chain saw away from the
tree. Start it and wait until lubrication on saw
chain is adequate.

Working with the chain saw

CAUTION: The first time user should, as
a minimum practice, do cutting logs on a
saw-horse or cradle.
CAUTION: When sawing precut timber,
use a safe support (saw horse or cradle).
Do not steady the workpiece with your foot,
and do not allow anyone else to hold or
steady it.
CAUTION: Secure round pieces against
rotation.
CAUTION: Keep all parts of the body
away from the saw chain when the motor is
operating.
CAUTION: Hold the chain saw firmly with
both hands when the motor is running.
CAUTION: Do not overreach. Keep
proper footing and balance at all times.
CAUTION: Do not use the chain saw for
tree felling.
NOTICE: Never toss or drop the tool.
NOTICE: Do not cover the vents of the tool.

Pruning trees

Bring the chain saw body into contact with the
branch to be cut before switching on. Otherwise
it may cause the guide bar to wobble, resulting
in injury to operator. Saw the wood to be cut by
just moving it down by using the weight of the
chain saw.

If you cannot cut the timber right through with a
single stroke:
Apply light pressure to the handle and continue
sawing and draw the chain saw back a little.

When cutting thick branches, first make a shallow
undercut and then make the finish cut from
the top.

If you try to cut off thick branches from the
bottom, the branch may close in and pinch the
saw chain in the cut. If you try to cut off thick
branches from the top without a shallow undercut,
the branch may splinter.

Bucking

1. Rest the chain saw body on the wood to be cut.

2. With the saw chain running, saw into the
wood while using the top handle to raise the saw
and the front one to guide it.

3. Continue the cut by applying slight pressure
to the top handle, easing the saw back slightly.
NOTICE: When making several cuts, switch
the chain saw off between cuts.
CAUTION: If the upper edge of the bar
is used for cutting, the chain saw may be
deflected in your direction if the chain
becomes trapped. For this reason, cut
with the lower edge, so that the saw will be
deflected away from your body.

When you cut a wood under tension, cut the
pressured side (A) first. Then make the final cut
from the tensioned side (B). This prevents the
bar from becoming trapped.

Limbing

CAUTION: Limbing may only be performed
by trained persons. A hazard is presented
by the risk of kickback.

When limbing, support the chain saw on the
trunk if possible. Do not cut with the tip of the
bar, as this presents a risk of kickback.
Pay particular attention to branches under tension.
Do not cut unsupported branches from
below.
Do not stand on the felled trunk when limbing.

Carrying tool

Before carrying the tool, always apply the chain
brake and remove the battery cartridge from the
tool. Then attach the guide bar cover. Also cover
the battery cartridge with the battery cover.

MAINTENANCE

CAUTION: Always be sure that the tool
is switched off and the battery cartridge
is removed before attempting to perform
inspection or maintenance.

CAUTION: Always wear gloves when
performing any inspection or maintenance.

NOTICE: Never use gasoline, benzine,
thinner, alcohol or the like. Discoloration,
deformation or cracks may result.

To maintain product SAFETY and RELIABILITY,
repairs, any other maintenance or adjustment
should be performed by Makita Authorized or
Factory Service Centers, always using Makita
replacement parts.

Sharpening the saw chain

Sharpen the saw chain when:
• Mealy sawdust is produced when damp
wood is cut;
• The chain penetrates the wood with difficulty,
even when heavy pressure is applied;
• The cutting edge is obviously damaged;
• The saw pulls to the left or right in the wood.
(caused by uneven sharpening of the saw
chain or damage to one side only)
Sharpen the saw chain frequently but a little each
time. Two or three strokes with a file are usually
sufficient for routine resharpening. When the saw
chain has been resharpened several times, have it
sharpened in our authorized service center.

Sharpening criteria:
WARNING: An excessive distance
between the cutting edge and depth gauge
increases the risk of kickback.

► 1. Cutter length 2. Distance between cutting
edge and depth gauge 3. Minimum cutter
length (3 mm (1/8″))

— All cutter length must be equal. Different cutter
lengths prevent the saw chain from running
smoothly and may cause the saw chain to break.
— Do not sharpen the chain when the cutter
length has reached 3 mm (1/8″) or shorter.
The chain must be replaced with new one.
— The chip thickness is determined by the
distance between the depth gauge (round
nose) and the cutting edge.
— The best cutting results are obtained with
following distance between cutting edge
and depth gauge.
• Chain blade 90PX : 0.65 mm (0.025″)
• Chain blade 91PX : 0.65 mm (0.025″)

— The sharpening angle of 30° must be
the same on all cutters. Different cutter
angles cause the chain to run roughly and
unevenly, accelerate wear, and lead to
chain breaks.
— Use a suitable round file so that the proper
sharpening angle is kept against the teeth.
• Chain blade 90PX : 55°
• Chain blade 91PX : 55°

File and file guiding
— Use a special round file (optional accessory)
for saw chains to sharpen the chain. Normal
round files are not suitable.
— Diameter of the round file for each saw
chain is as follows:
• Chain blade 90PX : 4.5 mm (3/16″)
• Chain blade 91PX : 4.0 mm (5/32″)
— The file should only engage the cutter on
the forward stroke. Lift the file off the cutter
on the return stroke.
— Sharpen the shortest cutter first. Then the
length of this shortest cutter becomes the
standard for all other cutters on the saw
chain.
— Guide the file as shown in the figure.

► 1. File 2. Saw chain
— The file can be guided more easily if a file
holder (optional accessory) is employed.
The file holder has markings for the correct
sharpening angle of 30° (align the markings
parallel to the saw chain) and limits
the depth of penetration (to 4/5 of the file
diameter).

— After sharpening the chain, check the height
of the depth gauge using the chain gauge
tool (optional accessory).

— Remove any projecting material, however
small, with a special flat file (optional
accessory).
— Round off the front of the depth gauge
again.

Cleaning the guide bar

Chips and sawdust will build up in the guide bar
groove. They may clog the bar groove and impair
the oil flow. Clean out the chips and sawdust
every time when you sharpen or replace the saw
chain.

Cleaning the sprocket cover

Chips and saw dust will accumulate inside of the
sprocket cover. Remove the sprocket cover and
saw chain from the tool then clean the chips and
saw dust.

Cleaning the oil discharge hole

Small dust or particles may be built up in the oil
discharge hole during operation. These dust or
particles may impair the oil to flow and cause an
insufficient lubrication on the whole saw chain.
When a poor chain oil delivery occurs at the top of
guide bar, clean the oil discharge hole as follows.
1. Remove the sprocket cover and saw chain
from the tool.
2. Remove the small dust or particles using a
slotted screwdriver or the like.

► 1. Slotted screwdriver 2. Oil discharge hole
3. Insert the battery cartridge into the tool. Pull
the switch trigger to flow built-up dust or particles
off the oil discharge hole by discharging chain
oil.
4. Remove the battery cartridge from the tool.
Reinstall the sprocket cover and saw chain on
the tool.
Replacing the sprocket
CAUTION: A worn sprocket will damage
a new saw chain. Have the sprocket
replaced in this case.
Before fitting a new saw chain, check the condition
of the sprocket.

Always fit a new locking ring when replacing the
sprocket.

► 1. Locking ring 2. Sprocket
NOTICE: Make sure that the sprocket is
installed as shown in the figure.

Storing the tool

1. Clean the tool before storing. Remove any
chips and sawdust from the tool after removing
the sprocket cover.
2. After cleaning the tool, run it under no load
to lubricate the saw chain and guide bar.
3. Cover the guide bar with the guide bar cover.
4. Empty the oil tank.

Instructions for periodic maintenance

To ensure long life, prevent damage and ensure the full functioning of the safety features, the following
maintenance must be performed regularly. Warranty claims can be recognized only if this work
is performed regularly and properly. Failure to perform the prescribed maintenance work can lead to
accidents! The user of the chain saw must not perform maintenance work which is not described in the
instruction manual. All such work must be carried out by our authorized service center.

Check item / Operating time

|

Before

operation

|

Everyday

|

Every

week

|

Every 3

month

|

Annually

|

Before

storage

---|---|---|---|---|---|---

Chain saw

|

Inspection.

|

–

|

–

|

–

|

–

|

–

Cleaning.

|

–

|

–

|

–

|

–

|

–

Check at

authorized service

center.

|

–

|

–

|

–

|

–

|

Saw chain

|

Inspection.

|

–

|

–

|

–

|

–

|

–

Sharpening if

necessary.

|

–

|

–

|

–

|

–

|

–

|

Guide bar

|

Inspection.

|

–

|

–

|

–

|

–

Remove

from the

chain saw.

|

–

|

–

|

–

|

–

|

–

|

Chain

brake

|

Check the function.

|

–

|

–

|

–

|

–

|

–

Have it

inspected regularly at authorized service

center.

|

–

|

–

|

–

|

–

|

–

Chain

lubrication

|

Check the oil feed

rate.

|

–

|

–

|

–

|

–

|

–

Switch

trigger

|

Inspection.

|

–

|

–

|

–

|

–

|

–

Lock-off

lever

|

Inspection.

|

–

|

–

|

–

|

–

|

–

Oil tank

cap

|

Check

tightness.

|

–

|

–

|

–

|

–

|

–

Chain

catcher

|

Inspection.

|

–

|

–

|

–

|

–

|

–

Screws

and nuts

|

Inspection.

|

–

|

–

|

–

|

–

|

–

TROUBLESHOOTING

Before asking for repairs, conduct your own inspection first. If you find a problem that is not explained in the manual, do not attempt to dismantle the tool. Instead, ask Makita Authorized Service Centers, always using Makita replacement parts for repairs.

Malfunction status

|

Cause

|

Action

---|---|---

The chain saw does not start.

|

Battery cartridge is not installed.

|

Install a charged battery

cartridge.

Battery problem (low voltage).

|

Recharge the battery cartridge. If recharging is not effective, replace the battery cartridge.

Main power switch is off.

|

The chain saw is automatically turned off if it is un-operated for a certain period. Turn on the main power switch again.

The saw chain does not run.

|

Chain brake activated.

|

Release chain brake.

The motor stops running after a little use.

|

Battery’s charge level is low.

|

Recharge the battery cartridge. If recharging is not effective, replace the battery cartridge.

No oil on the chain.

|

Oil tank is empty.

|

Fill the oil tank.

Oil guide groove is dirty.

|

Clean the groove.

Poor oil delivery.

|

Adjust the amount of oil delivery with the adjusting screw.

The chain saw does not reach maximum RPM.

|

Battery cartridge is installed improperly.

|

Install the battery cartridge as described in this manual.

Battery power is dropping.

|

Recharge the battery cartridge. If recharging is not effective, replace the battery cartridge.

The drive system does not work correctly.

|

Ask the authorized service cen ter in your region for repair.

The main power lamp is blinking in green.

|

Switch trigger is pulled under an unoperatable condition.

|

Pull the switch trigger after the main power switch is turned on and the chain brake is released.

Chain does not stop even the chain brake is activated:

Stop the tool immediately!

|

The brake band is worn down.

|

Ask the authorized service cen ter in your region for repair.

Abnormal vibration:

Stop the tool immediately!

|

Loose guide bar or saw chain.

|

Adjust the guide bar and saw chain tension.

Tool malfunction.

|

Ask the authorized service cen ter in your region for repair.

The saw chain cannot be installed.

|

The combination of saw chain and sprocket is not correct.

|

Use the correct combination of saw chain and sprocket by referring to the section for specifications.

OPTIONAL ACCESSORIES

CAUTION: These accessories or attachments are recommended for use with your Makita tool specified in this manual. The use of any other accessories or attachments might present a risk of injury to persons. Only use accessory or attachment for its stated purpose.

If you need any assistance for more details regarding these accessories, ask your local Makita Service Center.

• Saw chain

• Guide bar

• Guide bar cover

• Sprocket

• File

• Makita genuine battery and charger

WARNING: If you purchase a guide bar of different length from the standard guide bar, also purchase a suitable guide bar cover together. It must fit and fully cover the guide bar on the chain saw.

NOTE: Some items in the list may be included in the tool package as standard accessories. They may differ from country to country.

MAKITA LIMITED WARRANTY

Please refer to the annexed warranty sheet for the most current warranty terms applicable to this product. If annexed warranty sheet is not available, refer to the warranty details set forth at below website for your respective country.

United States of America: www.makitatools.com Canada: www.makita.ca

Other countries: www.makita.com