makita DSC251ZK 18V Brushless Steel Rod Cutter Instruction Manual

Cordless Steel Rod Cutter
INSTRUCTION MANUAL
DSC251

DSC251ZK 18V Brushless Steel Rod Cutter

Before installing and operating this machine, read, understand and follow all instructions and operating procedures. Keep this Instruction Manual with the machine.
Read, understand and follow all safety instructions and operating procedures. If you do not understand the instructions, or if conditions are not correct for proper operation, DO NOT OPERATE THE MACHINE. Consult your supervisor or another responsible person.

SPECIFICATIONS

5-15/32″ (excluding a handle)
Cutting Capacity of rebar (620 N/mm² / 90,000 psi )| φ10 to φ25 mm (SD490)
3/8″ to 1″ (Grade 60)
No load speed| 2200 min-¹
External Diameter of Blade| 110 mm / 4.3″

• Specifications and design may be subject to change without prior notice.
• Specifications and battery cartridges may differ from country to country.
• The weight may differ depending on the attachment(s), including the battery cartridge. The lightest and heaviest combinations, according to EPTA-Procedure 01/2014, are shown in the table.

Applicable battery cartridge and charger

• 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.
WARNING
Read and understand this instruction manual before operating this machine. Failure to follow operating instructions could result in death or serious injury.
WARNING LABELS RELATED TO SAFETY
Flying debris and loud noise hazards. Wear ear and eye protection.
Moving blade. Keep hands clear while the machine is operating. Turn the power off before servicing.

Symbols

The following show the symbols used for the equipment. Be sure that you understand their meaning before use.
Only for EU countries
Due to the presence of hazardous components in the equipment, waste electrical and electronic equipment, accumulators and batteries may have a negative impact on the environment and human health. Do not dispose of electrical and electronic appliances or batteries with household waste!
In accordance with the European Directive on waste electrical and electronic equipment and on accumulators and batteries and waste accumulators and batteries, as well as their adaptation to national law, waste electrical equipment, batteries, and accumulators should be stored separately and delivered to a separate collection point for municipal waste, operating in accordance with the regulations on environmental protection.
This is indicated by the symbol of the crossed-out wheeled bin placed on the equipment.

SAVE THESE INSTRUCTIONS
Meaning of “caution” and “warning” indications
Caution:
Indicates a potentially hazardous situation that, if not avoided, may result in minor or moderate injury. This is also used to alert against unsafe practices associated with events that could lead to personal injury.
Warning:
Indicates a potentially hazardous situation that, if not avoided, will result in death or serious injury.
* Makita shall not be responsible for any incidental damages or personal injuries resulting from the negligence of Warnings and Safety Instructions contained in the Instruction Manual.
Intended use
The tool is intended for cutting rebar.
Noise
The typical A-weighted noise level determined according to EN62841-1:
Sound pressure level (LpA): 78 dB(A)
Uncertainty(K): 3dB(A)
NOTE: The declared noise emission value(s) has been measured in accordance with a standard test method and may be used for comparing one tool with another.
NOTE: The declared noise emission value(s) may also be used in a preliminary assessment of exposure.
WARNING: Wear ear protection.
WARNING: The noise emission during the actual use of the power tool can differ from the declared value(s) depending on the ways in which the tool is used especially what kind of workpiece is processed.
WARNING:** Be sure to identify safety measures to protect the operator that is based on an estimation of exposure in the actual conditions of use (taking account of all parts of the operating cycle such as the times when the tool is switched off and when it is running idle in addition to the trigger time).

Vibration

The vibration total value (tri-axial vector sum) determined according to EN62841-1:
Work mode: impact tightening of fasteners of the maximum capacity of the tool
Vibration emission (ah): 2.5 m/s²
Uncertainty (K): 1.5 m/s²
NOTE: The declared vibration total value(s) has been measured in accordance with a standard test method and may be used for comparing one tool with another.
NOTE: The declared vibration total value(s) may also be used in a preliminary assessment of exposure.
WARNING: The vibration emission during actual use of the power tool can differ from the declared value(s) depending on the ways in which the tool is used especially what kind of workpiece is processed.
WARNING: Be sure to identify safety measures to protect the operator that is based on an estimation of exposure in the actual conditions of use (taking account of all parts of the operating cycle such as the times when the tool is switched off and when it is running idle in addition to the trigger time).

EC Declaration of Conformity

For European countries only
The EC declaration of conformity is included as Annex A to this instruction manual.
General power tool safety warnings
WARNING: Read all safety warnings, instructions, illustrations, and specifications provided with this power tool. Failure to follow all instructions listed below 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 the 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 that may ignite 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 the risk of electric shock.
2. Avoid body contact with earthed or grounded surfaces, such as pipes, radiators, ranges, and refrigerators. There is an increased risk of electric shock if your body is earthed or grounded.
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 the 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 outdoor use. The 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 residual current device (RCD) protected supply. The use of an RCD reduces the risk of electric shock.
7. Power tools can produce electromagnetic fields (EMF) that are not harmful to the user. However, users of pacemakers and other similar medical devices should contact the maker of their device and/or doctor for advice before operating this power tool.

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 hats, 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 a power source and/or battery 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 jewelry. Keep your hair and clothing away from moving parts. Loose clothes, jewelry, 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. The use of dust collection can reduce dust-related hazards.
8. Do not let familiarity gained from the frequent use of tools allow you to become complacent and ignore tool safety principles. A careless action can cause severe injury within a fraction of a second.
9. Always wear protective goggles to protect your eyes from injury when using power tools. The goggles must comply with ANSI Z87.1 in the USA, EN 166 in Europe, or AS/NZS 1336 in Australia/New Zealand. In Australia/New Zealand, it is legally required to wear a face shield to protect your face, too.

It is an employer’s responsibility to enforce the use of appropriate safety protective equipment by the tool operators and by other persons in the immediate working area.
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 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 remove the battery pack, if detachable, 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 and accessories. Check for misalignment or binding of moving parts, breakage 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.
8. Keep handles and grasping surfaces dry, clean, and free from oil and grease. Slippery handles and grasping surfaces do not allow for safe handling and control of the tool in unexpected situations.
9. When using the tool, do not wear cloth work gloves which may be entangled. The entanglement of cloth work gloves in the moving parts may result in personal injury.

Battery tool use and care

1. Recharge only with the charger specified by the manufacturer. A charger that is suitable 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 the 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 the eyes, additionally 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 an 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. Never service damaged battery packs. Service of battery packs should only be performed by the manufacturer or authorized service providers.
3. Follow instructions for lubricating and changing accessories.

WARNING FOR USING TIPPED SAW

Work area safety

1. Ensure the Dust Bag is fixed correctly. Without the Dust Bag, when Tipped Saw Blades are damaged, pieces of the blades fly off and can cause serious personal injury.

2. Keep bystanders away from operations. Even with the Dust Bag fitted, damaged blades or hot debris can fly out of the bag, resulting in serious personal injury.

3. Sparking may occur when cutting with Tipped Saw Blades. Do not use the tool where there is the risk of fire or explosion.

4. Cutting with Tipped Saw Blades is noisy. Consider the work area environment.
   Dress and protective equipment

5. Wear protective equipment; safety glasses, safety shoes, dust mask, and helmet. Even with the Dust Bag fitted, damaged blades or hot debris can fly out of the cover, resulting in personal injury.

6. Dress properly. Do not wear a tie, loose clothing, or knit gloves. Keep hair covered with a hair cover or a cap to be away from rotating blades.
   Before use

7. Ensure that Tipped Saw Blades are not deformed, chipped, cracked, or worn out. Do not use a Tipped Saw if any damage or wear is found. Cutting under such conditions may cause further damage to the blades and serious personal injury.

8. Do not use the Tipped Saw for any application other than that stated in the tool specification. Using the Tipped Saw for other applications can cause excessive wear, detachment of blades, low cutting performance, and abnormal generation of heat, resulting in damage to the blades and serious personal injury.
   Tipped saw replacement

9. When replacing the Tipped Saw, ensure that the battery is removed from the tool to prevent accidental operation and personal injury.

10. Ensure there is no one in the surroundings before operation and no abnormal sounds or abnormal vibrations occur when operating. Operating with abnormal sounds or abnormal vibrations can damage the blades resulting in serious personal injury.
    During operation

11. Do not use the Tipped Saw for any purpose other than cutting. Do not subject the blades to damage or stress. It can break the blades resulting in serious personal injury.

12. Hold the material firmly, in a vice or similar, so that it cannot move when cutting. If the material moves, the operation becomes unstable and cannot be controlled, resulting in damage to the blades and possible serious personal injury.

13. Start cutting only after the Tipped Saw has reached maximum speed. If the Tipped Saw is set against the material before the motor is started, the blades will be overloaded and damaged, resulting in possible serious personal injury.

14. Do not cut in zigzags, curves, or diagonals, or use the side of the blade to price or for any other purpose.

15. If during cutting, there is an abnormal sound or abnormal vibration, or if the cutting parts are badly worn, stop the operation.
    Continuing the operation under such conditions will damage the Tipped Saw blades with the result that chips may be ejected causing serious personal injury.

16. The continuous operation makes the Tipped Saw blades hot and reduces the cutting performance.
    Maintenance

17. If there is deformation, a crack, or damage on the Tipped Saw, stop the operation. Continuing the operation under such conditions will further damage the Tipped Saw which may break up. Ejected broken parts can cause serious personal injury.

18. Only keep and use Tipped Saws that are in good condition and the blades sharp and clean.

WARNING: Always wear protective equipment; safety glasses, safety shoes, dust mask, and helmet.
WARNING: Use only Makita supplied Tipped Saw. Using non-Makita parts may damage the tool and can result in serious accidents or injuries.

Important safety instructions for battery cartridge

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

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

3. If the operating time has become excessively shorter, stop operating immediately. It may result in a risk of overheating, 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 cartridges in a container with other metal objects such as nails, coins, etc.
   (3) Do not expose the 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 temperature may reach or exceed 50 °C (122 °F).

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

8. Do not nail, cut, crush, throw, drop the battery cartridge, or hit a hard object to the battery cartridge. Such conduct 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 and forwarding agents, the special requirements on packaging and labeling must be observed.
    For the 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 of the battery cartridge, remove it from the tool and dispose of it in a safe place. Follow your local regulations relating to the disposal of batteries.

12. Use the batteries only with the products specified by Makita. Installing the batteries to noncompliant 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 to stick into the terminals, holes, and grooves of the battery cartridge. It may result in poor performance or breakdown of the tool or battery cartridge.

17. Unless the tool supports the use near high-voltage electrical power lines, do not use the battery cartridge near 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 at 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).

PART NAMES

► Fig.1: 1. Battery 2. Motor 3. Dust Bag Holder 4. Outlet 5. Guide 6. Tipped Saw 7. Handle 8. Lock Button 9. Switch

Installing or removing the battery cartridge
CAUTION: Always be sure that the tool is switched off and the battery cartridge is removed before adjusting or checking the function of the tool.
CAUTION: Always switch off the tool before installing or removing the battery cartridge.
CAUTION: Hold the tool and the battery cartridge firmly when installing or removing the 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.
► Fig.2: 1. Button 2. Red indicator 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 on the upper side of the button, 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.

Tool/battery protection system

The tool is equipped with a tool/battery protection system. This system automatically cuts off the power to extend the 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
This protection works when the tool is operated in a manner that causes it to draw an abnormally high current. 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
This protection works when the tool or battery is overheated. In this situation, let the tool and battery cool before turning the tool on again.
Over-discharge protection
This protection works when the remaining battery capacity gets low. In this situation, remove the battery from the tool and charge the battery.

Indicating the remaining battery capacity

Only for battery cartridges with the indicator
► Fig.3: 1. Indicator lamps 2. Check button
Press the check button on the battery cartridge to indicate the remaining battery capacity. The indicator lamps light up for a few seconds.

Indicator lamps|

Remaining capacity

---|---

Lighted

|

Off

|

Blinking

| 75% to 100%
| 50% to 75%
| 25% to 50%
| 0% to 25%
| Charge the battery.
| The battery may have malfunctioned.

NOTE: Depending on the conditions of use and the ambient temperature, the indication may differ slightly from the actual capacity.

OPERATING PROCEDURE

WARNING: Before the battery is inserted into the tool, ensure that the Switch is at the “O” position and the Switch is off.
CAUTION: Push the Lock Button and ensure that the Button comes up when it is released. If the Lock Button will not come up when it is released, the Tipped Saw will be prevented from rotating when the tool is operated resulting in damage to parts and motor burnout.
CAUTION: Slide the Switch to the “l” position and ensure it stays there and does not move. Then push down on the rear of the Switch to ensure that the Switch moves to the “O” position automatically.
CAUTION: Ensure that the bolts retaining the Tipped Saw Cover and all other bolts are tightened firmly.
► Fig.4: 1. Handle Position (parallel / left side) 2. Lock Button 3. Handle Position (parallel / right side) 4. Switch 5. Handle Position (vertical/upper side)

Operation

► Fig.5: 1. Guide 2. Rebar
► Fig.6: 1. Rebar 2. Guide

1. Screw the Handle into a threaded hole at the vertical or parallel position for easier operation.

2. Ensure that the Switch is at the “O” position.
   CAUTION: As a safety function of this tool, the Motor cannot be energized when the battery is inserted with the Switch at the “l” position. For further safety, please note that the battery should be inserted with the Switch at the “O” position.

3. Insert the battery into the tool.

4. Slide the Switch to the “l” position. The motor is on. Then push down on the forward end of the Switch to lock it to operating continuously.
   WARNING: Do not touch the rotating parts as they can cause serious injury.

5. Position the Guide in the opening against the rebar.
   Then push the tool forward slowly to start to cut the rebar.
   CAUTION: When cutting, both at the beginning and near the end, slow down the tool’s forward (cutting) movement. A fast-cutting action, at these times, will damage the Tipped Saw blades and can cause injury from flying debris.
   CAUTION: Hold the tool firmly so that it does not shake when cutting. Cutting with the tool shaking will shorten the life of the Tipped Saw and damage the blades. **CAUTION: Position the tool so it is at 90 degrees to the rebar to be cut. If the tool is not at 90 degrees to the rebar, it can cause shaking and overload the tool.
   CAUTION: Do not start cutting immediately after the motor is switched on. Allow the Tipped Saw to reach full speed before beginning to cut.
   CAUTION:** Do not remove the battery when the motor is switched on. Doing so can cause damage to the motor’s electronics.

6. After finishing the cut, push down on the rear end of the Switch which will cause the Switch to move to the “O” position and turn off the motor.

CAUTION: This tool is designed to cut the rebar.
Please contact the manufacturer or your local dealer if you want to cut other materials. Cutting other materials will damage the Tipped Saw blades.
Caution when cutting

1. Ensure that the Tipped Saw blade is well away from the material to be cut before switching it on.
2. Slow down the forward (cutting) movement of the tool when approaching the end of the cut. This is especially important when the piece to be cut is less than 50 mm in length. The piece cut off can strike the Tipped Saw blades, damaging them and causing serious injury.
3. When the Tipped Saw blades become blunt or chipped. replace the blade. Continuing to use it in this condition will overload the tool.
4. If the material moves or shakes, when being cut, stop the operation and properly secure the material.
5. Do not hold by hand the material to be cut. Doing so may result in personal injury.
6. Do not cut rebar that in size or hardness exceeds the cutting capacity of the tool.

Replace the Tipped Saw when any of the below occurs

1. Warning Lamp (red) blinks frequently even though the battery is fully charged.
2. The Tipped Saw blades are chipped or worn.
3. The cutting speed is very slow.
4. The surface of the cut piece is discolored by heat.

NOTE: Tipped Saw blades cannot be re-sharpened.
How to fit the Dust Bag
► Fig.7: 1. Dust Bag

1. Place the open end of the Dust Bag over the Dust Bag Holder and secure it in place with the drawstrings.
2. Give the bag a sharp tug to ensure it is properly secured.

CAUTION: The Dust Bag is made from nonflammable material but very hot debris, such as that produced when cutting with a worn Tipped Saw blade, can melt the material. Be aware of this possibility when using the Dust Bag.

Battery Indicator function

► Fig.8: 1. Battery Indicator
When you turn the tool on, the battery indicator shows the remaining battery capacity. (see table 1)
Table 1

: On Off : Blinking
| 5 0 %-1 0 0 %
| 2 0 %-5 0 %
| 0 %-2 0 %
| Charge the battery

Automatic speed change function
► Fig.9: 1. Mode Indicator
The tool has ‘high-speed mode’ and ‘high torque mode’. It will select the operating mode automatically, according to the workload. When the mode indicator lights up during operation, the tool is in high torque mode. (see table 2)
Table 2

Tool / battery protection function
The tool will automatically stop during operation if the tool or battery is placed under one of the following conditions:

• The tool is overloaded
• The tool overheats
• The battery capacity is not enough

If the tool is repeatedly operated under these conditions, the protection system will lock the tool.
Overload protection
If the tool is overloaded during cutting, it will automatically stop. In this situation, turn the tool off and remove the cause of the overload then restart the tool.
Protection lock
When the protection system works repeatedly, the tool will lock and the battery indicator shows the state as table 3.
Table 3

Overheat protection for tool
When the tool is overheated, the tool stops automatically and the battery indicator shows the state in table 4.
In this situation, let the tool cool before turning the tool on again.
Table 4

Over-discharge protection
When the battery capacity is not enough, the tool stops automatically. In this case, remove the battery from the tool and charge the battery.

TIPPED SAW REPLACEMENT PROCEDURE

WARNING: Switch off the tool and remove the battery before replacing the blade, to prevent accidental operation resulting in serious personal injury.
► Fig.10: 1. Tipped Saw Cover 2. Bolt 3. Washer 4. Tipped Saw Guide 5. Tipped Saw 6. Pin 7. Hole 8. Tipped Saw Cover Retaining Bolt
How to remove the Tipped Saw
Remove the Tipped Saw
► Fig.11: 1. Push (Lock Button)

1. Remove the Tipped Saw Cover Retaining Bolts (4 pieces) with a hexagonal wrench.

2. Remove the Tipped Saw Cover.

3. Insert a hexagonal wrench into the bolt retaining the Tipped Saw Guide.

4. Push in the Lock Button and using the hexagonal wrench as a handle, rotate the Tipped Saw blade until it is prevented from further rotation by the Lock Button.
   CAUTION: Ensure that the Lock Button is completely pushed in. If not, the hexagonal wrench can rotate and may cause personal injury.

5. With the Tipped Saw locked, turn the hexagonal wrench counterclockwise to loosen and remove the bolt and washer.

6. Remove the Tipped Saw Guide and the Tipped Saw.

How to replace the Tipped Saw
CAUTION: Use only Makita supplied Tipped Saw. If reusing a Tipped Saw, ensure it is not worn, chipped, or damaged.
CAUTION: Use only a Tipped Saw with three holes that fit the pins on the output shaft of the tool. Another type of saw cannot be used.
CAUTION: Install a Tipped Saw in the correct direction. If incorrect, the three pins do not fit the hole properly.
CAUTION: Clean and remove all debris and dirt from the Tipped Saw and parts. Debris and dirt can unbalance the Tipped Saw making it wobble during cutting.
Replace the Tipped Saw
► Fig.12: 1. Push (Lock Button)

1. Fit the Tipped Saw over the Output Shaft. Make sure that the three pins on the Output Shaft fit in the holes on the Tipped Saw.

2. Replace the Tipped Saw Guide.

3. Replace the Bolt and Washer.

4. Push in the Lock Button completely to prevent the Tipped Saw from rotating and tighten the Bolt with the hexagonal wrench.
   CAUTION: Ensure that the Lock Button is completely pushed in. If not, the hexagonal wrench can rotate and may cause personal injury.

5. Replace the Tipped Saw Cover.

6. Tighten the Tipped Saw Cover Retaining Bolts (4 pieces) with a hexagonal wrench.

MAINTENANCE

CAUTION: Always ensure that the tool is switched off and the battery is removed before attempting to perform inspection or maintenance.
NOTICE: Never use gasoline, benzene, thinner, alcohol, or the like. Discoloration, deformation, or cracks may result.
► Fig.13: 1. Dust Cover
Remove the Dust Cover from the air vent and clean it for proper air circulation.
CAUTION: Clean the Dust Cover when it becomes clogged. Continuing operation with a clogged dust cover may damage the tool.

Makita Europe N.V.
Jan-Baptist Vinkstraat 2,
3070 Kortenberg, Belgium
Makita Corporation
3-11-8, Sumiyoshi-cho,
Anjo, Aichi 446-8502 Japan
DSC251-11L-2103
www.makita.com
TRD

References

• MAKITA Industrial Power Tools - The Leader In Cordless with 18V LXT Lithium-Ion

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