Makita DFS250 Cordless Screwdriver Instruction Manual

Makita DFS250 Cordless Screwdriver

SPECIFICATIONS

• Due to our continuing program of research and development, the specifications herein are subject 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 lightest and heaviest combination, 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.
Intended use
The tool is intended for screw driving in wood, metal and plastic.
Noise
The typical A-weighted noise level determined according to EN62841-2-2:

• Model DFS250
  Sound pressure level (LpA) : 72 dB(A)
  Uncertainty (K) : 3 dB(A)
• Model DFS251
  Sound pressure level (LpA) : 72 dB(A)
  Uncertainty (K) : 3 dB(A)

The noise level under working may exceed 80 dB (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.
• The declared noise emission value(s) may also be used in a preliminary assessment of exposure

WARNING:

• Wear ear protection.
• The noise 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.
• Be sure to identify safety measures to protect the operator that are 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) deter-mined according to EN62841-2-2:

• Model DFS250
  Work mode: screw driving without impact
  Vibration emission (ah) : 2.5 m/s2 or less
  Uncertainty (K) : 1.5 m/s2
• Model DFS251
  Work mode: screw driving without impact
  Vibration emission (ah) : 2.5 m/s2 or less
  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.
• 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.
• Be sure to identify safety measures to protect the operator that are 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.

SAFETY WARNINGS

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.

Cordless screwdriver safety warnings

1. Hold the power tool by insulated gripping surfaces, when performing an operation where the fastener may contact hidden wiring. Fasteners contacting a “live” wire may make exposed metal parts of the power tool “live” and could give the operator an electric shock.
2. Always be sure you have a firm footing.
   Be sure no one is below when using the tool in high locations.
3. Hold the tool firmly.
4. Keep hands away from rotating parts.
5.  Do not touch the bit or the workpiece immediately after operation; they may be extremely hot and could burn your skin.
6.  Always secure workpiece in a vise or similar hold-down device.
7. Make sure there are no electrical cables, water pipes, gas pipes etc. that could cause a hazard if damaged by use of the tool.

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.

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 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:
   • Do not touch the terminals with any conductive material.
   • Avoid storing battery cartridge in a container with other metal objects such as nails, coins, etc.
   • 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 car-tridge 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 is completely 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 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, forwarding agents, special requirement on pack-aging 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 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.

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).

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.
• 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.
•  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

Only for battery cartridges with the indicator

1. Indicator lamps
2. Check button

Press the check button on the battery cartridge to indi-cate 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.
•  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 without any indication. 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 lamp blinks. In this case, let the tool and battery cool before turning the tool on again.
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.
Switch action
WARNING: 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.

1. Switch trigger
2. Lock button

To start the tool, simply pull the switch trigger. Tool speed is increased by increasing pressure on the switch trigger. Release the switch trigger to stop.
For continuous operation, pull the switch trigger, push in the lock button and then release the switch trigger. To stop the tool from the locked position, pull the switch trigger fully, then release it.
CAUTION: Switch can be locked in “ON” position for ease of operator comfort during extended use. Apply caution when locking tool in “ON” position and maintain firm grasp on tool.
NOTE:

• Even with the switch on and motor running, the driver bit does not rotate. Push the tool forward to engage the clutch.
• The tool automatically stops if the motor keeps rotating for about 6 minutes.

Push drive mode

1. Button
2. Mode indicator

This tool has push drive mode. In this mode, the tool cuts off power to the motor to save the battery power at idle. To select push drive mode, pull the trigger slightly, then release it and quickly press the button. The mode indicator will then light up.
Once push drive is activated, pull the switch trigger and then push the lock button. Apply pressure to the driver bit and the motor will start rotating. Further pressure engages the clutch and the driver bit will start rotating. In push drive mode, the motor and the driver bit will only rotate by applying pressure.
NOTE: If the tool does not run for about 8 hours in push drive mode with the trigger locked on, tool is shutdown. In such a case, release and pull the trigger again for restarting.
Lighting up the front lamp
CAUTION: Do not look in the light or see the source of light directly.

1. Lamp
2. Button

To turn on the lamp, slightly pull the switch trigger, and then release it. The lamp goes out approximately 10 seconds after releasing the switch trigger.
To keep turning off the light, slightly pull the switch trigger, then release it, and then press the button for a few seconds. To turn on the light, perform the same operation again.
In push drive mode with the switch trigger locked, the lamp goes out approximately one minute after the motor stops.
NOTE:

• While pulling the switch trigger, the lamp status cannot be changed.
• For approximately 10 seconds after releasing the switch trigger, the lamp status can be changed.
• Use a dry cloth to wipe the dirt off the lens of the lamp. Be careful not to scratch the lens of lamp, or it may lower the illumination.

Reversing switch action

1. Reversing switch lever

CAUTION:

• Always check the direction of rotation before operation.
• Use the reversing switch only after the tool comes to a complete stop. Changing the direction of rotation before the tool stops may dam-age the tool.
•  When not operating the tool, always set the reversing switch lever to the neutral position.

This tool has a reversing switch to change the direction of rotation. Move the reversing switch lever to the position (A side) for clockwise rotation or to the position (B side) for counterclockwise rotation.
When the reversing switch lever is in the neutral position, the switch trigger cannot be pulled.
Depth adjustment

1. Locator

The depth can be adjusted by turning the locator. Turn it in “B” direction for less depth and in “A” direction for more depth. One full turn of the locator equals 2 mm (1/16″) change in depth.
For DFS250

1. Locator

For DFS251

 

1. Locator
   

Adjust the locator so that the distance between the tip of the locator and the screw head is approximately 3 mm (1/8″) as shown in the figures. Drive a trial screw into your material or a piece of duplicate material. If the depth is still not suitable for the screw, continue adjust-ing until you obtain the proper depth setting.
Hook
CAUTION:

• Always remove the battery when hanging the tool with the hook.
• Never hook the tool at high location or on potentially unstable surface.
  1.Hook

The hook is convenient for temporarily hanging the tool.

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.

Installing or removing driver bit/socket bit

For DFS250

1. Locator

1. Locator
2. Driver Bit
3. Magnetic bit holder

To remove the driver bit, pull the locator, and then grasp the bit with a pair of pliers and pull the bit out of the magnetic bit holder. To install the driver bit, push it firmly into the magnetic bit holder. Then install the locator by pushing it firmly back.
For DFS251

 

1. Locator
   

 

1. Locator
2. Socket bit

Installing hook

WARNING:

• Use the hanging/mounting parts for their intended purposes only, e.g., hanging the tool on a tool belt between jobs or work intervals.
• Be careful not to overload the hook as too much force or irregular overburden may cause damages to the tool resulting in personal injury.

CAUTION:

• When installing the hook, always secure it with the screw firmly. If not, the hook may come off from the tool and result in the personal injury.
• Make sure to hang the tool securely before releasing your hold. Insufficient or unbalanced hooking may cause falling off and you may be injured.

1. Groove
2. Hook
3. Screw

The hook is convenient for temporarily hanging the tool. This can be installed on either side of the tool. To install the hook, insert it into a groove in the tool housing on either side and then secure it with a screw. To remove, loosen the screw and then take it out.

OPERATION

Fit the screw on the point of the bit and place the point of the screw on the surface of the workpiece to be fastened. Apply pressure to the tool and start it. Withdraw the tool as soon as the clutch cuts in. Then release the switch trigger.
CAUTION:

• When fitting the screw onto the point of the bit, be careful not to push in on the screw. If the screw is pushed in, the clutch will engage and the screw will rotate suddenly. This could damage a workpiece or cause an injury.
• Make sure that the bit is inserted straight in the screw head, or the screw and/or bit may be damaged.

MAINTENANCE

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

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 regard-ing these accessories, ask your local Makita Service Center.

• Driver bits
• Magnetic bit holder
• Socket bits
• Makita genuine battery and charger
• Plastic carrying case

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