MAKITA BHP452 (01) PDF MANUAL

MAKITA BHP452 (01) PDF SUMMARY:

What should I do before using the battery cartridge?

Before using the battery cartridge, read all instructions and cautionary markings on the battery charger, the battery, and the product using the battery.

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What should I do if the operating time of the tool has become excessively shorter?

Stop operating the tool immediately if the operating time has become excessively shorter, as it may result in a risk of overheating, possible burns, and even an explosion.

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What should I do if electrolyte gets into my eyes?

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

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What should I avoid doing with the battery cartridge?

Avoid the following with the battery cartridge:

• Disassembling it.
• Shorting the terminals with any conductive material.
• Storing it in a container with other metal objects such as nails or coins.
• Exposing it to water or rain.

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

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Where should I avoid storing the tool and battery cartridge?

Do not store the tool and battery cartridge in locations where the temperature may reach or exceed 50 ﾟ C (122 ﾟ F).

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What should I do with a severely damaged or completely worn-out battery cartridge?

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

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What are some tips for maintaining maximum battery life?

Here are tips for maintaining maximum battery life:

• Charge the battery cartridge before it is completely discharged. Stop tool operation and charge the battery cartridge when you notice less tool power.
• Never recharge a fully charged battery cartridge, as overcharging shortens the battery service life.
• Charge the battery cartridge with room temperature at 10 ﾟ C – 40 ﾟ C (50 ﾟ F – 104 ﾟ F). Let a hot battery cartridge cool down before charging it.

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What should I check before adjusting or checking the function on the tool?

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

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What should I always switch off before inserting or removing the battery cartridge?

Always switch off the tool before insertion or removal of the battery cartridge.

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How do I remove the battery cartridge?

To remove the battery cartridge, withdraw it from the tool while sliding the button on the side of the cartridge.

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How do I insert the battery cartridge?

To insert the battery cartridge:

1. Align the tongue on the battery cartridge with the groove in the housing.
2. Slip it into place.
3. Insert it all the way until it locks in place with a little click.
4. If you can see the red part on the upper side of the button, it is not locked completely. Insert it fully until the red part cannot be seen. If not, it may accidentally fall out of the tool, causing injury.

Do not use force when inserting the battery cartridge. If the cartridge does not slide in easily, it is not being inserted correctly.

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What should I check before inserting the battery cartridge into the tool?

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

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How do I start the tool and adjust the speed?

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.

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What is the electric brake and what should I do if it fails?

This tool is equipped with an electric brake. If the tool consistently fails to quickly stop after switch trigger release, have the tool serviced at a Makita service center.

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How do I light up the front lamp?

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 10 -15 seconds after releasing the trigger.

Do not look in the light or see the source of light directly.

Use a dry cloth to wipe the dirt off the lens of the lamp. Be careful not to scratch the lens of the lamp, or it may lower the illumination.

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How do I use the reversing switch?

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.

• 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 damage the tool.
• When not operating the tool, always set the reversing switch lever to the neutral position.

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How do I change the speed?

To change the speed, first switch off the tool and then slide the speed change lever to the “2” side for high speed or “1” side for low speed. Be sure that the speed change lever is set to the correct position before operation. Use the right speed for your job.

• Always set the speed change lever fully to the correct position. If you operate the tool with the speed change lever positioned halfway between the “1” side and “2” side, the tool may be damaged.
• Do not use the speed change lever while the tool is running. The tool may be damaged.

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How do I select the action mode?

This tool employs an action mode changing ring. Select one of the three modes suitable for your work needs by using this ring:

• For rotation only, turn the ring so that the arrow on the tool body points toward the mark on the ring.
• For rotation with hammering, turn the ring so that the arrow points toward the mark on the ring.
• For rotation with clutch, turn the ring so that the arrow points toward the mark on the ring.

Always set the ring correctly to your desired mode mark. If you operate the tool with the ring positioned halfway between the mode marks, the tool may be damaged.

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How do I adjust the fastening torque?

The fastening torque can be adjusted in 16 steps by turning the adjusting ring so that its graduations are aligned with the arrow on the tool body. The fastening torque is minimum when the number 1 is aligned with the arrow, and maximum when the number 16 is aligned with the arrow. Before actual operation, drive a trial screw into your material or a piece of duplicate material to determine which torque level is required for a particular application.

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What should I be sure of before carrying out any work on the tool?

Always be sure that the tool is switched off and the battery cartridge is removed before carrying out any work on the tool.

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How do I install or remove a driver bit or drill bit?

Turn the sleeve counterclockwise to open the chuck jaws. Place the bit in the chuck as far as it will go. Turn the sleeve clockwise to tighten the chuck. To remove the bit, turn the sleeve counterclockwise.

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How do I install the bit holder?

Fit the bit holder into the protrusion at the tool foot on either the right or left side and secure it with a screw. When not using the driver bit, keep it in the bit holders. Bits 45 mm (1-3/4") long can be kept there.

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How do I install the hook?

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.

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What should I be sure of regarding the battery cartridge before starting operation?

Always insert the battery cartridge all the way until it locks in place. If you can see the red part on the upper side of the button, it is not locked completely. Insert it fully until the red part cannot be seen. If not, it may accidentally fall out of the tool, causing injury to you or someone around you.

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How should I hold the tool during operation?

Hold the tool firmly with one hand on the grip and the other hand on the bottom of the battery cartridge to control the twisting action.

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How do I perform hammer drilling operation?

• Turn the action mode changing ring so that the arrow on the tool body points to the marking. The adjusting ring can be aligned in any torque levels for this operation.
• Be sure to use a tungsten-carbide tipped bit.
• 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.

There is a tremendous and sudden twisting force exerted on the tool/bit at the time of hole break-through, when the hole becomes clogged with chips and particles, or when striking reinforcing rods embedded in the concrete.

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How do I clean dust out of the hole after drilling?

After drilling the hole, use the blow-out bulb to clean the dust out of the hole.

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How do I perform screwdriving operation?

1. Turn the action mode changing ring so that the arrow on the tool body points to the marking.
2. Adjust the adjusting ring to the proper torque level for your work.
3. Place the point of the driver bit in the screw head and apply pressure to the tool.
4. Start the tool slowly and then increase the speed gradually.
5. Release the switch trigger as soon as the clutch cuts in.

Make sure that the driver bit is inserted straight in the screw head, or the screw and/or bit may be damaged.

When driving wood screws, predrill pilot holes to make driving easier and to prevent splitting of the workpiece. See the chart.

Nominal diameter of wood screw (mm)	Recommended size of pilot hole (mm)
3.1 (1/8")	2.0 – 2.2 (5/64" – 3/32")
3.5 (9/64")	2.2 – 2.5 (3/32" – 3/32")
3.8 (5/32")	2.5 – 2.8 (3/32" – 7/64")
4.5 (11/64")	2.9 – 3.2 (7/64" – 1/8")
4.8 (3/16")	3.1 – 3.4 (1/8" – 9/64")
5.1 (13/64")	3.3 – 3.6 (1/8" – 9/64")
5.5 (7/32")	3.7 – 3.9 (9/64" – 5/32")
5.8 (7/32")	4.0 – 4.2 (5/32" – 11/64")
6.1 (15/64")	4.2 – 4.4 (11/64" – 11/64")

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How do I perform drilling operation?

1. Turn the adjusting ring so that the pointer points to the marking.
2. Follow the steps as below.

Pressing excessively on the tool will not speed up the drilling. In fact, this excessive pressure will only serve to damage the tip of your bit, decrease the tool performance and shorten the service life of the tool.

There is a tremendous force exerted on the tool/bit at the time of hole break through. Hold the tool firmly and exert care when the bit begins to break through the workpiece.

A stuck bit can be removed simply by setting the reversing switch to reverse rotation in order to back out. However, the tool may back out abruptly if you do not hold it firmly.

Always secure small workpieces in a vise or similar hold-down device.

If the tool is operated continuously until the battery cartridge has discharged, allow the tool to rest for 15 minutes before proceeding with a fresh battery.

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What is the best way to drill in wood?

When drilling in wood, the best results are obtained with wood drills equipped with a guide screw. The guide screw makes drilling easier by pulling the bit into the workpiece.

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How do I prevent the bit from slipping when drilling in metal?

To prevent the bit from slipping when starting a hole, make an indentation with a center-punch and hammer at the point to be drilled. Place the point of the bit in the indentation and start drilling. Use a cutting lubricant when drilling metals. The exceptions are iron and brass which should be drilled dry.

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What should I ensure before attempting to perform inspection or maintenance?

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

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When should I replace the carbon brushes?

Replace carbon brushes when they wear down to the limit mark. Keep the carbon brushes clean and free to slip in the holders. Both carbon brushes should be replaced at the same time. Use only identical carbon brushes.

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How do I replace the carbon brushes?

1. Use a screwdriver to remove two screws then remove the rear cover.
2. Raise the arm part of the spring and then place it in the recessed part of the housing with a slotted bit screwdriver of slender shaft or the like.
3. Use pliers to remove the carbon brush caps of the carbon brushes.
4. Take out the worn carbon brushes, insert the new ones and replace the carbon brush caps in reverse.
5. Make sure that the carbon brush caps have fit into the holes in brush holders securely.
6. Reinstall the rear cover and tighten two screws securely.
7. After replacing brushes, insert the battery cartridge into the tool and break in brushes by running tool with no load for about 1 minute. Then check the tool while running and electric brake operation when releasing the switch trigger. If electric brake is not working well, ask your local Makita service center for repair.

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What is the recommended procedure to maintain product safety and reliability?

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.

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What accessories are recommended for use with the Makita tool?

The following accessories or attachments are recommended for use with the Makita tool:

• Drill bits
• Tungsten-carbide tipped hammer bit
• Phillips bit
• Slotted bit
• Socket bit
• Blow-out bulb
• Safety goggles
• Various types of Makita genuine batteries and chargers
• Hook
• Rubber pad assembly
• Wool bonnet
• Foam polishing pad

Only use an accessory or attachment for its stated purpose. If you need any assistance for more details regarding these accessories, ask your local Makita Service Center.

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What is the warranty policy for the Makita tool?

Every Makita tool is thoroughly inspected and tested before leaving the factory. It is warranted to be free of defects from workmanship and materials for the period of ONE YEAR from the date of original purchase. Should any trouble develop during this one year period, return the COMPLETE tool, freight prepaid, to one of Makita’s Factory or Authorized Service Centers. If inspection shows the trouble is caused by defective workmanship or material, Makita will repair (or at their option, replace) without charge. This Warranty does not apply where:

• repairs have been made or attempted by others
• repairs are required because of normal wear and tear
• the tool has been abused, misused or improperly maintained
• alterations have been made to the tool.

In no event shall Makita be liable for any indirect, incidental or consequential damages from the sale or use of the product. This disclaimer applies both during and after the term of this warranty. Makita disclaims liability for any implied warranties, including implied warranties of “merchantability” and “fitness for a specific purpose,” after the one year term of this warranty. This Warranty gives you specific legal rights, and you may also have other rights which vary from state to state. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. Some states do not allow limitation on how long an implied warranty lasts, so the above limitation may not apply to you.