makita HR2475 Combination Hammer Instruction Manual

: June 3, 2024
: Makita

Table of Contents

makita HR2475 Combination Hammer
SPECIFICATIONS
General Power Tool Safety Warnings
Save all warnings and instructions for future reference
ROTARY HAMMER SAFETY WARNINGS
- SAVE THESE INSTRUCTIONS
FUNCTIONAL DESCRIPTION
- Selecting action mode
ASSEMBLY
OPERATION
MAINTENANCE
ACCESSORIES
MAKITA LIMITED ONE YEAR WARRANTY
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

makita HR2475 Combination Hammer

makita-HR2475-Combination-Hammer-PRODUCT

SPECIFICATIONS

Model	HR2475

Capacities

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

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.

Work area safety

Keep work area clean and well lit. Cluttered or dark areas invite accidents.
Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Power tools create sparks which may ignite the dust or fumes.
Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.
Electrical Safety
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 risk of electric shock.
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.
Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.
Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool. Keep cord away from heat, oil, sharp edges or moving parts. Damaged or entangled cords increase the risk of electric shock.
When operating a power tool outdoors, use an extension cord suitable for outdoor use. Use of a cord suitable for outdoor use reduces the risk of electric shock.
If operating a power tool in a damp location is unavoidable, use a ground fault circuit interrupter (GFCI) protected supply. Use of an GFCI reduces the risk of electric shock.
Personal Safety
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.
Use personal protective equipment. Always wear eye protection. Protective equipment such as dust mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries.
Prevent unintentional starting. Ensure the switch is in the off-position before connecting to power source and/or battery pack, picking up or carrying the tool. . Carrying power tools with your finger on the switch or energising power tools that have the switch on invites accidents.
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.
Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations.
Dress properly. Do not wear loose clothing or jewellery. Keep your hair, clothing, and gloves away from moving parts. Loose clothes, jewellery or long hair can be caught in moving parts.
If devices are provided for the connection of dust extraction and collection facilities, ensure these are connected and properly used. Use of dust collection can reduce dust-related hazards.
Power tool use and care
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.
Do not use the power tool if the switch does not turn it on and off. Any power tool that cannot be controlled with the switch is dangerous and must be repaired.
Disconnect the plug from the power source and/or the battery pack 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.
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.
Maintain power tools. 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.
Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.
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.
SERVICE
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.
Follow instruction for lubricating and changing accessories.
Keep handles dry, clean and free from oil and grease.

USE PROPER EXTENSION CORD. Make sure your extension cord is in good condition. When using an extension cord, be sure to use one heavy enough to carry the current your product will draw. An undersized cord will cause a drop in line voltage resulting in loss of power and overheating. Table 1 shows the correct size to use depending on cord length and nameplate ampere rating. If in doubt, use the next heavier gage. The smaller the gage number, the heavier the cord.

Minimum gage for cord

Ampere Rating	Volts	Total length of cord in feet
120 V	25 ft.	50 ft.
More Than	Not More Than	AWG
0	6
6	10	18
10	12	16
12	16	14

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. If you use this tool unsafely or incorrectly, you can suffer serious personal injury.

Wear ear protectors. Exposure to noise can cause hearing loss.
Use auxiliary handle(s), if supplied with the tool. Loss of control can cause personal injury.
Hold power tool by insulated gripping surfaces, when performing an operation where the cutting accessory may contact hidden wiring or its own cord. Cutting accessory contacting a “live” wire may make exposed metal parts of the power tool “live” and could give the operator an electric shock.
Wear a hard hat (safety helmet), safety glasses and/or face shield. Ordinary eye or sun glasses are NOT safety glasses. It is also highly recommended that you wear a dust mask and thickly padded gloves.
Be sure the bit is secured in place before operation.
Under normal operation, the tool is designed to produce vibration. The screws can come loose easily, causing a breakdown or accident. Check tightness of screws carefully before operation.
In cold weather or when the tool has not been used for a long time, let the tool warm up for a while by operating it under no load. This will loosen up the lubrication. Without proper warm-up, hammering operation is difficult.
Always be sure you have a firm footing.
Be sure no one is below when using the tool in high locations.
Hold the tool firmly with both hands.
Keep hands away from moving parts.
Do not leave the tool running. Operate the tool only when hand-held.
Do not point the tool at any one in the area when operating. The bit could fly out and injure someone seriously.
Do not touch the bit or parts close to the bit immediately after operation; they may be extremely hot and could burn your skin.
Some material contains chemicals which may be toxic. Take caution to prevent dust inhalation and skin contact. Follow material supplier safety data.

SAVE THESE INSTRUCTIONS

WARNING:
MISUSE or failure to follow the safety rules stated in this instruction manual may cause serious personal injury.

Symbols
The followings show the symbols used for tool.

volts
amperes
hertz
alternating current
no load speed
Class II Construction
revolutions or reciprocation per minute
number of blow

FUNCTIONAL DESCRIPTION

CAUTION:
Always be sure that the tool is switched off and unplugged before adjusting or checking function on the tool.

Switch action

Lock button
Switch trigger

CAUTION:
Before plugging in the tool, always check to see that the switch trigger actuates properly and returns to the “OFF” position when released. 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 and then push in the lock button. To stop the tool from the locked position, pull the switch trigger fully, then release it.

Reversing switch action

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 damage the tool.
When you operate the tool in counterclockwise rotation, the switch trigger is pulled only halfway and the tool runs at half speed. For counterclockwise rotation, you cannot push in the lock button.

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.

Selecting action mode

CAUTION:

Always set the knob fully to your desired mode symbol. If you operate the tool with the knob positioned half-way between the mode symbols, the tool may be damaged.
Do not rotate the action mode changing knob when the tool is running under load. The tool will be damaged.
To avoid rapid wear on the mode change mechanism, be sure that the action mode changing knob is always positively located in one of the three action mode positions.

Rotation with hammering

Lock button
Rotation with hammering
Action mode changing knob

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.

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.

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.

Torque limiter
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.

CAUTION:

As soon as the torque limiter actuates, switch off the tool immediately. This will help prevent premature wear of the tool.
Hole saws cannot be used with this tool. They tend to pinch or catch easily in the hole. This will cause the torque limiter to actuate too frequently

ASSEMBLY

CAUTION:
Always be sure that the tool is switched off and unplugged before carrying out any work on the tool.

Side handle (auxiliary handle)

Grip base
Tighten
Loosen
Teeth
Side grip
Protrusion

Always use the side grip to ensure operating safety. Install the side grip so that the teeth on the grip fit in between the protrusions on the tool barrel. Then tighten the grip by turning clockwise at the desired position. It Bmay be swung 360° so as to be secured at any position.

Bit grease
Coat the bit shank head beforehand with a small amount of bit grease (about 0.5 -1 g; 0.02 – 0.04 oz.). This chuck lubrication assures smooth action and longer service life.

Installing or removing the bit

Bit shank
Bit grease

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. After installing, always make sure that the bit is securely held in place by trying to pull it out.

Bit
Chuck cover

To remove the bit, pull the chuck cover down all the way and pull the bit out.

Bit
Chuck cover

Bit angle (when chipping, scaling or demolishing)

Action mode changing knob
Lock button

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 O 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.

Depth gauge

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:

The depth gauge cannot be used at the position where the depth gauge strikes against the gear housing.

Dust cup

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 (mm)
---|---
Dust cup 5| 6 – 14.5
Dust cup 9| 12 – 16

OPERATION

Hammer drilling operation

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

CAUTION:
There is 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. Always use the side grip (auxiliary handle) and firmly hold the tool by both side grip and switch handle during operations. Failure to do so may result in the loss of control of the tool and potentially severe injury.

Blow-out bulb (optional accessory)

Blow-out bulb

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

Chipping/Scaling/Demolition

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.

Drilling in wood or metal

Use the optional drill chuck assembly. When installing it, refer to “Installing or removing the bit” described on the previous page. Set the action mode changing knob to the symbol. You can drill up to 13 mm(1/2″) diameter in metal and up to 32 mm(1-1/4″) diameter in wood

CAUTION:

Never use “rotation with hammering” when the drill chuck assembly is installed on the tool. The drill chuck assembly may be damaged. Also, the drill chuck will come off when reversing the tool.
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 twisting force exerted on the tool/bit at the time of hole breakthrough. 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.
When performing diamond core drilling operations, always set the change lever to the position to use “rotation only” action. If performing diamond core drilling operations using “rotation with hammering” action, the diamond core bit may be damaged.

MAINTENANCE

CAUTION:
Always be sure that the tool is switched off and unplugged before attempting to perform inspection or maintenance. To maintain product SAFETY and RELIABILITY, repairs, carbon brush inspection and replacement, any other maintenance or adjustment should be performed by Makita Authorized or Factory Service Centers, always using Makita replacement parts.

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 regarding these accessories, ask your local Makita Service Center.

SDS Plus Carbide-tipped bits
Drill chuck assembly
Drill chuck S13
Chuck adapter
Chuck key S13
Bit grease
Depth gauge
Blow-out bulb
Dust cup
Dust extractor attachment
Safety goggle
Plastic carrying case
Core bit
Side grip
Bull point
Cold chisel
Scaling chisel
Grooving chisel
Scraper
Keyless drill chuck

MAKITA LIMITED ONE YEAR WARRANTY

Warranty Policy
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 our 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

WARNING
Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are:

lead from lead-based paints,
crystalline silica from bricks and cement and other masonry products, and
arsenic and chromium from chemically-treated lumber.

Your risk from these exposures varies, depending on how often you do this type of work. To reduce your exposure to these chemicals: work in a well ventilated area, and work with approved safety equipment, such as those dust masks that are specially designed to filter out microscopic particles.

Makita Corporation 3-11-8, Sumiyoshi-cho, Anjo, Aichi 446-8502 Japan