Model | BHR242 | BHR243 | |
Capacities | Concrete | 24 mm | |
Steel | 13 mm | ||
Wood | 27 mm | ||
No load speed (min-1) | 0 - 950 | ||
Blows per minute | 0 - 4,700 | ||
Overall length | 328 mm | 353 mm | |
Net weight | 3.3 kg | 3.4 | |
Rated voltage | D.C. 18 V |
The tool is intended for hammer drilling and drilling in brick, concrete and stone as well as for chiselling work. It is also suitable for drilling without impact in wood, metal, ceramic and plastic.
The typical A-weighted noise level determined according to EN60745:
Model BHR242
Sound pressure level (LpA): 90 dB(A)
Sound power level (LWA): 101 dB(A)
Uncertainty (K): 3 dB(A)
Model BHR243
Sound pressure level (LpA): 89: dB(A)
Sound power level (LWA): 100 dB(A)
Uncertainty (K): 3 dB(A)
Wear ear protection
The vibration total value (tri-axial vector sum) determined according to EN60745:
Model BHR242
Work mode: hammer drilling into concrete
Vibration emission (ah, HD): 13.5 m/s2
Uncertainty (K): 1.5 m/s2
Work mode: chiselling
Vibration emission (ah, CHeq): 10.5 m/s2
Uncertainty (K): 1.5 m/s2
Work mode: drilling into metal
Vibration emission (ah, D): 3.5 m/s2
Uncertainty (K): 1.5 m/s2
Model BHR243
Work mode: hammer drilling into concrete
Vibration emission (ah, HD): 13 m/s2
Uncertainty (K): 1.5 m/s2
Work mode: chiseling
Vibration emission (ah, CHeq): 11 m/s2
Uncertainty (K): 1.5 m/s2
Work mode: drilling into metal
Vibration emission (ah, D): 2.5 m/s2 or less
Uncertainty (K): 1.5 m/s2
Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury.
CORDLESS ROTARY HAMMER SAFETY WARNINGS
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
A battery short can cause a large current flow, overheating, possible burns and even a breakdown.
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:
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.
This tool has a reversing switch to change the direction of rotation. Depress the reversing switch lever from the A side for clockwise rotation or from the B side for counterclockwise rotation.
When the reversing switch lever is in the neutral position, the switch trigger cannot be pulled.
For model BHR243
The quick change chuck for SDS-plus can be easily exchanged for the quick change drill chuck.
Removing the quick change chuck for SDS-plus
Grasp the change cover of the quick change chuck for SDS-plus and turn in the direction of the arrow until the change cover line moves from the symbol to the symbol. Pull forcefully in the direction of the arrow.
Attaching the quick change drill chuck
Check the line of the quick change drill chuck shows the symbol. Grasp the change cover of the quick change drill chuck and set the line to the symbol.
Place the quick change drill chuck on the spindle of the tool.
Grasp the change cover of the quick change drill chuck and turn the change cover line to the symbol until a click can clearly be heard.
Rotation with hammering
For drilling in concrete, masonry, etc., depress the lock button and rotate the action mode changing knob to the symbol. Use a tungsten-carbide tipped bit.
Rotation only
For drilling in wood, metal or plastic materials, depress the lock button and rotate the action mode changing knob to the symbol. Use a twist drill bit or wood bit.
Hammering only
For chipping, scaling or demolition operations, depress the lock button and rotate the action mode changing knob to the symbol. Use a bull point, cold chisel, scaling chisel, etc.
The torque limiter will actuate when a certain torque level is reached. The motor will disengage from the output shaft. When this happens, the bit will stop turning.
Coat the bit shank head beforehand with a small amount of bit grease (about 0.5 -1 g). This chuck lubrication assures smooth action and longer service life.
Clean the bit shank and apply bit grease before installing the bit.
Insert the bit into the tool. Turn the bit and push it in until it engages.
If the bit cannot be pushed in, remove the bit. Pull the chuck cover down a couple of times. Then insert the bit again. Turn the bit and push it in until it engages.
After installing, always make sure that the bit is securely held in place by trying to pull it out.
To remove the bit, pull the chuck cover down all the way and pull the bit out.
The bit can be secured at the desired angle. To change the bit angle, depress the lock button and rotate the action mode changing knob to the symbol. Turn the bit to the desired angle.
Depress the lock button and rotate the action mode changing knob to the symbol. Then make sure that the bit is securely held in place by turning it slightly.
The depth gauge is convenient for drilling holes of uniform depth. Loosen the side grip and insert the depth gauge into the hole in the side grip. Adjust the depth gauge to the desired depth and tighten the side grip.
NOTE:
Use the dust cup to prevent dust from falling over the tool and on yourself when performing overhead drilling operations. Attach the dust cup to the bit as shown in the figure. The size of bits which the dust cup can be attached to is as follows.
Bit diameter | |
Dust cup 5 | 6 mm - 14.5 mm |
Dust cup 9 | 12 mm - 16 mm |
Set the action mode changing knob to the symbol. Position the bit at the desired location for the hole, then pull the switch trigger.
Do not force the tool. Light pressure gives best results. Keep the tool in position and prevent it from slipping away from the hole.
Do not apply more pressure when the hole becomes clogged with chips or particles. Instead, run the tool at an idle, then remove the bit partially from the hole. By repeating this several times, the hole will be cleaned out and normal drilling may be resumed.
NOTE:
Eccentricity in the bit rotation may occur while operating the tool with no load. The tool automatically centers itself during operation. This does not affect the drilling precision.
After drilling the hole, use the blow-out bulb to clean the dust out of the hole.
Set the action mode changing knob to the symbol. Hold the tool firmly with both hands. Turn the tool on and apply slight pressure on the tool so that the tool will not bounce around, uncontrolled. Pressing very hard on the tool will not increase the efficiency.
Use the optional drill chuck assembly. When installing it, refer to "Installing or removing the bit".
Set the action mode changing knob so that the pointer points to the symbol.
For model BHR243
Use the quick change drill chuck as standard equipment. When installing it, refer to "changing the quick change chuck for SDS-plus".
Hold the ring and turn the sleeve counterclockwise to open the chuck jaws. Place the bit in the chuck as far as it will go. Hold the ring firmly and turn the sleeve clockwise to tighten the chuck. To remove the bit, hold the ring and turn the sleeve counterclockwise.
Set the action mode changing knob to the symbol.
You can drill up to 13 mm diameter in metal and up to 32 mm diameter in wood.
To maintain product SAFETY and RELIABILITY, repairs, carbon brush inspection and replacement, any other maintenance or adjustment should be performed by Makita Authorized Service Centers, always using Makita replacement parts.
If you need any assistance for more details regarding these accessories, ask your local Makita Service Center.
NOTE:
Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.
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