makita DJR187 Cordless Recipro Saw Instruction Manual

: June 5, 2024
: Makita

Cordless Recipro Saw
INSTRUCTION MANUAL

makita DJR187 Cordless Recipro Saw

makita DJR187 Cordless Recipro Saw - fig1 | makita
DJR187 Cordless Recipro Saw - fig2
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SPECIFICATIONS

Model:		DJR187
Length of stroke		32 mm
Strokes per minute	High (2)
Low (1)		0 – 2,300 min’
Max. cutting capacities	Pipe
Wood		255 mm
Rated voltage		D.C. 18 V
Battery cartridge	BL1815N, BL1820, BL1820B	BL1830, BL1830B, BL1840, BL1840B,

BL1850, BL1850B, BL1860B
Overall length| | 439 mm
Net weight| 3.4 kg| I 3.7 kg

Due to our continuing program of research and development, the specifications herein are subject to change without notice.
Specifications and battery cartridges may differ from country to country.
Weight, with battery cartridge, according to EPTA-Procedure 01/2003

Intended use

The tool is intended for sawing wood, plastic, and ferrous materials.

Noise

The typical A-weighted noise level is determined according to EN60745:
Sound pressure level
(L) : 84 dB(A)
Sound power level (LWA) : 95 dB (A)
Uncertainty (K) : 3 dB(A)

WARNING: Wear ear protection. Vibration

The vibration total value (tri-axial vector sum) determined according to EN60745:
Work mode: cutting boards
Vibration emission (ah,B) : 16.5 m/s²
Uncertainty (K) : 1.5 m/s²
Work mode: cutting wooden beams
Vibration emission (ah,WB) 15.5 m/s²
Uncertainty (K) : 1.5 m/s²
NOTE: The declared vibration emission value has been measured in accordance with the standard test method and may be used for comparing one tool with another.
NOTE: The declared vibration emission value 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 emission value depending on the ways in which the tool is used.
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
Makita declares that the following Machine(s):
Designation of Machine: Cordless Recipro Saw
Model No./ Type: DJR187
Conforms to the following European Directives: 2006/42/EC
They are manufactured in accordance with the following standard or standardized documents: EN60745
The technical file in accordance with 2006/42/EC is available from Makita, Jan-Baptist Vinkstraat 2, 3070, Belgium 24.4.2015

Makita, Jan-Baptist Vinkstraat 2, 3070, Belgium

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.

Cordless recipro saw safety warnings

Hold power tool by insulated gripping surfaces, when performing an operation where the cutting accessory may contact hidden wiring. Cutting accessory contacting a “live” wire may make exposed metal parts of the power tool “live” and could give the operator an electric shock.
Use clamps or another practical way to secure and support the workpiece to a stable platform. Holding the work by hand or against your body leaves it unstable and may lead to loss of control.
Always use safety glasses or goggles. Ordinary eyes or sunglasses are NOT safety glasses.
Avoid cutting nails. Inspect the workpiece for any nails and remove them before operation.
Do not cut the oversize workpieces.
Check for the proper clearance beyond the workpiece before cutting so that the blade will not strike the floor, workbench, etc.
Hold the tool firmly.
Make sure the blade is not contacting the workpiece before the switch is turned on.
Keep hands away from moving parts.
Do not leave the tool running. Operate the tool only when hand-held.
Always switch off and wait for the blade to come to a complete stop before removing the blade from the workpiece.
Do not touch the blade or the workpiece immediately after operation; they may be extremely hot and could burn your skin. \
Do not operate the tool at no-load unnecessarily.
Always use the correct dust mask/respirator for the material and application you are working with.
Some material contains chemicals that may be toxic. Take caution to prevent dust inhalation and skin contact. Follow material supplier safety data.

SAVE THESE INSTRUCTIONS.
WARNING: DO NOT let comfort or familiarity with the 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

Before using the battery cartridge, read all instructions and cautionary markings on
(1) battery charger,
(2) battery, and
(3) product using the battery.
Do not disassemble the battery cartridge.
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.
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.
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.
Do not store the tool and battery cartridge in locations where the temperature may reach or exceed 50 °C (122 °F).
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.
Be careful not to drop or strike the battery.
Do not use a damaged battery.
The contained lithium-ion batteries are subject to the Dangerous Goods Legislation requirements. For commercial transports e.g. by third parties, forwarding agents, 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.
Follow your local regulations relating to the disposal of batteries.

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

Charge the battery cartridge before completely discharged. Always stop tool operation and charge the battery cartridge when you notice less tool power.
Never recharge a fully charged battery cartridge. Overcharging shortens the battery service life.
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.
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 the function of the tool.

Installing or removing the 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 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.1: 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 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.

Battery protection system

Lithium-ion battery with star marking
► Fig.2: 1. Star marking
Lithium-ion batteries with a star marking are equipped with a protection system. This system automatically cuts off power to the tool to extend battery life. The tool will automatically stop during operation if the tool and/or battery are placed under one of the following conditions:

Overloaded:
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. If the tool does not start, the battery is overheated. In this situation, let the battery cool before turning the tool on again.

Low battery voltage:
The remaining battery capacity is too low and the tool will not operate. In this situation, remove and recharge the battery.

Indicating the remaining battery capacity

Only for battery cartridges with “B” at the end of the model number
► 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 few seconds.

Indicator lamps

| Remaining capacity
---|---
| |
| 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.

Switch action

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 use the lock/speed change lever while the tool is running. The tool may be damaged.
► Fig.4: 1. Lock/speed change lever 2. Switch trigger 3. Status of the lock/speed change lever
► Fig.5
To start the tool, depress the lock/speed change lever from either A or B side and pull the switch trigger. Tool speed is increased by increasing pressure on the switch trigger. Release the switch trigger to stop. Max tool speed can be changed in 2 steps.

For high speed
When the lock/speed change lever is depressed from the A side, the stroke speed is at “2”.
For low speed
When the lock/speed change lever is depressed from the B side, the stroke speed is at “1”.
When the lock/speed change lever is in position, the tool is locked and the switch trigger can not be pulled.

Lighting up the front lamp

► Fig.6: 1. Lamp
CAUTION: Do not look in the light or see the source of light directly.

Pull the switch trigger to light up the lamp. The lamp keeps on lighting while the switch trigger is being pulled. The lamp goes out approximately 10 seconds after releasing the switch trigger.

NOTE: 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.
NOTE: When the tool is overheated, the lamp blinks for one minute. In this case, cool down the tool before another operation.

Adjusting the shoe

When the reciprocal saw blade loses its cutting efficiency in one place along its cutting edge, reposition the shoe to utilize a sharp, unused portion of its cutting edge. This will help to lengthen the life of the recipro saw blade.
The position of the shoe can be adjusted in five levels. To reposition the shoe, open the shoe adjusting lever and select the suitable position, then close the shoe adjusting lever.
► Fig.7: 1. Shoe 2. Shoe adjusting lever

NOTE: The shoe cannot be adjusted without opening the shoe adjusting lever fully.

Hook

CAUTION: When hanging the tool, set the lock/speed change lever in position to lock the switch trigger. (See the section titled “Switch action” .)
CAUTION: Never hang the tool at a high or potentially unstable location.

► Fig.8: 1. Hook
The hook is convenient for hanging the tool temporarily. To use the hook, simply lift up the hook until it snaps into the open position.
When not in use, always lower the hook until it snaps into the closed position.

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 the recipro saw blade

CAUTION: Always clean out all chips or foreign matter adhering to the blade and around the lade clamp. Failure to do so may cause insufficient tightening of the blade, resulting in a serious injury.

To install the recipro saw blade, always make sure that the blade clamp lever (part of the blade clamp sleeve) is in the released position on the insulation cover before inserting the recipro saw blade. If the blade clamp lever is in a fixed position, rotate the blade clamp lever in the direction of the arrow so that it can be locked at the released positon .
► Fig.9: 1. Blade clamp lever 2. Released position 3. Fixed position

Insert the recipro saw blade into the blade clamp as far as it will go. The blade clamp sleeve rotates and fixes the recipro saw blade. Make sure that the reciprocal saw blade cannot be extracted even though you try to pull it out.
► Fig.10: 1. Recipro saw blade 2. Blade clamp sleeve

CAUTION: If you do not insert the recipro saw blade deep enough, the recipro saw blade may be ejected unexpectedly during operation. This can be extremely dangerous.

To remove the recipro saw blade, rotate the blade clamp lever in the direction of the arrow fully. The recipro saw blade is removed and the blade clamp lever is fixed at the released position .
► Fig.11: 1. Recipro saw blade 2. Blade clamp lever

CAUTION: Keep hands and fingers away from the lever during the switching operation. Failure to do so may cause personal injuries.

NOTE: If you remove the recipro saw blade without rotating the blade clamp lever fully, the lever may not be locked in the released position . In this case, rotate the blade clamp lever fully again, then make sure that the blade clamp lever is locked at the released position .
NOTE: If the blade clamp lever is positioned inside the tool, switch on the tool for just a second to let the blade out as shown in the figure. Remove the battery cartridge from the tool before installing or removing the recipro saw blade.

OPERATION

CAUTION: Always press the shoe firmly against the workpiece during operation. If the shoe is removed or held away from the workpiece during operation, strong vibration and/or twisting will be produced, causing the blade to snap dangerously.
CAUTION: Always wear gloves to protect your hands from hot flying chips when cutting metal.
CAUTION: Be sure to always wear suitable eye protection which conforms with current national standards.
CAUTION: Always use a suitable coolant (cutting oil) when cutting metal. Failure to do so will cause premature blade wear.

Press the shoe firmly against the workpiece. Do not allow the tool to bounce. Bring the recipro saw blade into light contact with the workpiece. First, make a pilot groove using
a slower speed. Then use a faster speed to continue cutting.
► Fig.12

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, benzene, thinner, alcohol, or the like. Discoloration, deformation, or cracks may result.

To maintain product SAFETY and RELIABILITY, repairs, and 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 with more details regarding these accessories, ask your local Makita Service Center.