Makita HM1304B User Manual

Demolition Hammer

MODEL HM1304B

DOUBLE
INSULATION

INSTRUCTION MANUAL

WARNING:

For your personal safety, READ and UNDERSTAND before using.
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.

www.makitatools.com

003891

SPECIFICATIONS

Model HM1304B

Blows per minute 1,450

Overall length 831 mm (32-3/4”)

Net weight 17 kg (37.5 lbs)

• Manufacturer reserves the right to change specifications without notice.

• Specifications may differ from country to country.

GENERAL SAFETY RULES

USA002-2

(For All Tools)

WARNING:

Read and understand all instructions. Failure to follow all

instructions listed below, may result in electric shock, fire and/or
serious personal injury.

SAVE THESE INSTRUCTIONS

Wor k A re a

1.

Keep your work area clean and well lit.

Cluttered benches and dark areas invite acci­dents.

2.

Do not operate power tools in explosive
atmospheres, such as in the presence of
flammable liquids, gases, or dust.

tools create sparks which may ignite the dust
or fumes.

3.

Keep bystanders, children, and visitors
away while operating a power tool.

tractions can cause you to lose control.

2

Power

Dis-

Electrical Safety

4.

Double insulated tools are equipped with
a polarized plug (one blade is wider than
the other.) This plug will fit in a polarized
outlet only one way. If the plug does not fit
fully in the outlet, reverse the plug. If it
still does not fit, contact a qualified elec­trician to install a polarized outlet. Do not
change the plug in any way.

tion eliminates the need for the three wire
grounded power cord and grounded power
supply system.

5.

Avoid body contact with grounded sur­faces such as pipes, radiators, ranges and
refrigerators.

electric shock if your body is grounded.

There is an increased risk of

Double insula-

6. Do not expose power tools to rain or wet
conditions.

increase the risk of electric shock.

7. Do not abuse the cord. Never use the cord
to carry the tools or pull the plug from an
outlet. Keep cord away from heat, oil,
sharp edges or moving parts. Replace
damaged cords immediately.

cords increase the risk of electric shock.

8. When operating a power tool outside, use
an outdoor extension cord marked “W-A”
or “W”.

use and reduce the risk of electric shock.

Water entering a power tool will

Damaged

These cords are rated for outdoor

Personal Safety

9. Stay alert, watch what you are doing and
use common sense when operating a
power tool. Do not use tool while tired or
under the influence of drugs, alcohol, or
medication.

operating power tools may result in serious
personal injury.

10. Dress properly. Do not wear loose cloth­ing or jewelry. Contain long hair. Keep
your hair, clothing, and gloves away from
moving parts.

hair can be caught in moving parts.

11. Avoid accidental starting. Be sure switch
is off before plugging in.

your finger on the switch or plugging in tools
that have the switch on invites accidents.

12. Remove adjusting keys or wrenches
before turning the tool on.

key that is left attached to a rotating part of
the tool may result in personal injury.

13. Do not overreach. Keep proper footing
and balance at all times.

balance enables better control of the tool in
unexpected situations.

14. Use safety equipment. Always wear eye
protection.

shoes, hard hat, or hearing protection must
be used for appropriate conditions. Ordinary
eye or sun glasses are NOT eye protection.

A moment of inattention while

Loose clothes, jewelry, or long

Carrying tools with

A wrench or a

Proper footing and

Dust mask, non-skid safety

Tool Use and Care

15. Use clamps or other practical way to
secure and support the workpiece to a
stable platform.

against your body is unstable and may lead
to loss of control.

16. Do not force tool. Use the correct tool for
your application.

job better and safer at the rate for which it is
designed.

17. Do not use tool if switch does not turn it
on or off.

with the switch is dangerous and must be
repaired.

18. Disconnect the plug from the power
source before making any adjustments,
changing accessories, or storing the tool.

Such preventive safety measures reduce the
risk of starting the tool accidentally.

19. Store idle tools out of reach of children
and other untrained persons.

dangerous in the hands of untrained users.

20. Maintain tools with care. Keep cutting
tools sharp and clean.

tools with sharp cutting edges are less likely
to bind and are easier to control.

21. Check for misalignment or binding of
moving parts, breakage of parts, and any
other condition that may affect the tools
operation. If damaged, have the tool ser­viced before using.

caused by poorly maintained tools.

22. Use only accessories that are recom­mended by the manufacturer for your

Accessories that may be suitable for

model.

one tool, may become hazardous when used
on another tool.

Holding the work by hand or

The correct tool will do the

Any tool that cannot be controlled

Tools are

Properly maintained

Many accidents are

SERVICE

23. Tool service must be performed only by
qualified repair personnel.

tenance performed by unqualified personnel
could result in a risk of injury.

Service or main-

3

24. When servicing a tool, use only identical
replacement parts. Follow instructions in
the Maintenance section of this manual.

USE PROPER EXTENSION CORD:

Make sure your extension cord is in good condition.

Use of unauthorized parts or failure to follow
Maintenance instructions may create a risk of
electric shock or injury.

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.

Table 1: Minimum gage for cord

Ampere Rating

More Than Not More Than

0 6 18 16 16 14

6 10 18161412
10 12 16 16 14 12
12 16 14 12 Not Recommended

Volts Total length of cord in feet

120 V 25 ft. 50 ft. 100 ft. 150 ft.

AWG

SPECIFIC SAFETY RULES

USB009-2

DO NOT let comfort or familiarity with product (gained from
repeated use) replace strict adherence to hammer safety rules.
If you use this tool unsafely or incorrectly, you can suffer seri­ous personal injury.

1. Hold tools by insulated gripping surfaces
when performing an operation where the
cutting tool may contact hidden wiring or
its own cord.

make exposed metal parts of the tool “live”
and shock the operator.

2. Wear ear protectors when using the tool
for extended periods.

to high intensity noise can cause hearing
loss.

3. 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.

Contact with a “live” wire will

Prolonged exposure

4

4. Be sure the bit is secured in place before
operation.

5. 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.

6. 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.

7. Always be sure you have a firm footing.
Be sure no one is below when using the
tool in high locations.

8. Hold the tool firmly with both hands.

9. Keep hands away from moving parts.

10. Do not leave the tool running. Operate the

tool only when hand-held.

11. Do not point the tool at any one in the area
when operating. The bit could fly out and
injure someone seriously.

12. Do not touch the bit or parts close to the
bit immediately after operation; they may
be extremely hot and could burn your
skin.

13. 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

V

....................... amperes

A

..................... hertz

Hz

................ alternating current

....................Class II Construction

................revolutions or reciprocation per

.../min

................number of blow

minute

USD203-2

5

FUNCTIONAL
DESCRIPTION

003892

CAUTION:

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

Switch action

1

2

1. Lock button

2. Switch trigger

ASSEMBLY

003893

5

4

1. Side handle

2. Nut

3. Projecting portion of side handle

4. Notch on set bolt

5. Set bolt

3

CAUTION:

• Before plugging in the tool, always check to see that the
switch trigger actuates properly and returns to the “OFF”
position when released.

• 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.

To start the tool, simply pull the switch trigger. Release the
switch trigger to stop.
For continuous operation, pull the switch trigger and then
slide down the lock button.
To stop the tool from the locked position, pull the switch trig­ger fully, then release it.

CAUTION:

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

Side handle (auxiliary handle)

1

The side handle can be either freely swiveled or secured at
one position for use during tool operation. Just loosen the nut
to swivel the handle freely.

2

To secure the handle at a fixed position, first loosen the nut
and swing the handle to the desired position for use. Then
tighten the nut firmly. If the set bolt turns together with the nut
when you secure the nut, see that the projecting portion of
the side handle fits into the notch on the head of the set bolt.

6

1. Bit with collar

2. Bit without coller

002928

Installing or removing the bit

1

This tool accepts bits either with or without a collar on its
shank.

2

To install the bit, follow either procedure (1) or (2) described
below.

(1) For bits with a collar

003894

1

2

3

45

1. Bit 2. Tool retainer

3. Tool holder 4. When the bit is inserted

5. When the bit is retained

Pivot the tool retainer back and slightly downward. Insert
the bit into the tool holder as far as it will go. To securely
retain the bit, return the tool retainer to its original posi­tion.

CAUTION:

• Always assure that the bit is securely retained by
attempting to pull the bit out of the tool holder after
completing the above procedure.

(2) For bits without a collar

003895

1

2

3

45

1. Notched portion 2. Tool retainer shaft

3. Barrel 4. When the bit is inserted

5. When the bit is retained

Pivot the tool retainer back and slightly downward. With
the notched portion of the bit facing the tool retainer
shaft, insert the bit into the tool holder as far as it will go.
Then pivot the tool retainer further downward toward the
barrel to securely retain the bit.

7

CAUTION:

6

• Always assure that the bit is securely retained by
attempting to pull the bit out of the tool holder after
completing the above procedure.

• The bit without a collar cannot be retained by the method
shown in Fig.(1).

To remove the bit, follow the installation procedure in
reverse.

OPERATION

MAINTENANCE

2

1

3

1. Commutator

2. Insulating tip

3. Carbon brush

1

Chipping/Scaling/Demolition

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.

CAUTION:

• Always be sure that the tool is switched off and
unplugged before attempting to perform inspection or
maintenance.

00114

Replacing carbon brushes

When the resin insulating tip inside the carbon brush is
exposed to contact the commutator, it will automatically shut
off the motor. When this occurs, both carbon brushes should
be replaced. 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.

003896

Use a screwdriver to remove the holder cap plates.

2

1. Holder cap plate

2. Screwdriver

8

1

1. Brush holder cap

2. Screwdriver

1
2

1. Hex wrench

2. Crank cap

1

1. Hammer grease

003897

Use a screwdriver to remove the brush holder caps. Take out
the worn carbon brushes, insert the new ones and secure

2

the brush holder caps.

Reinstall the holder cap plates firmly.

003898

Lubrication

This tool requires no hourly or daily lubrication because it
has a grease-packed lubrication system. It should be relubri­cated after every 6 months of operation. Send the complete
tool to Makita Authorized or Factory Service Center for this
lubrication service. However, if circumstances require that
you should lubricate it by yourself, proceed as follows.

Run the tool for several minutes to warm it up. Switch off and
unplug the tool.

003899

Remove the crank cap using a hex wrench, then replenish
with fresh grease (60 g; 2 oz). Use only Makita genuine ham­mer grease (optional accessory). Filling with more than the
specified amount of grease (approx. 60 g; 2 oz) can cause
faulty hammering action or tool failure. Fill only with the spec­ified amount of grease.

Reinstall the crank cap securely with the hex wrench.

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.

9

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.

• Bull point

• Cold chisel

• Scaling chisel

• Clay spade

• Rammer

• Safety goggles

• Hammer grease

• Steel carrying case

10

Memo

11

Memo

12

Cut

Makita U.S.A., Inc.

14930 Northam Street
La Mirada, CA 90638-5753

Fold

First-Class

Postage

Required

Post Office will

not deliver

without proper

postage.

13

MAIL THIS PORTION

Your answers to the following questions are appreciated.

1. This product was purchased from:

Home Center

Hardware/Lumber Store

Tool Distributor

Industrial Supply

Construction Supply

2. Use of the product is intended for:

Construction Trade

Industrial Maintenance

Home Maintenance

Hobby

Other ( )

5. Any comments:

DATE PURCHASED MODEL NO.

MONTH DAY YEAR

INTL. LAST NAME / COMPANY NAME

Other ( )

3. How did you learn about this product:

4. Most favored points are:

SERIAL NO.

Magazine

From Dealer

Newspaper

Store Display

Catalog

Design

Features

Size

Price

Makita Brand

Radio

Exhibition

From Friend

Previous Usage

Other ( )

Repair Service

Durability

Powe r

Other ( )

STATUS

Married

Single

SEX

MF

STREET ADRESS

CITY

AREA

S TATE

AGE:

BE SURE TO COMPLETE THE CUSTOMER’S PORTION OF THIS FORM AND RETAIN FOR YOUR RECORDS.

Paste Paste Paste Paste Paste Paste

14

Please return this portion by facsimile or mail.

Facsimile No: [phone]

ZIP CODE PHONE

Under 19 20-29 30-39 40-49 50-60 Over 60

CODE

Paste Paste Paste Paste Paste Paste Paste Paste

Paste Paste Paste Paste Paste Paste

FACTORY SERVICE CENTERS

1-800-4-MAKITA

RETAIN THIS PORTION FOR YOUR RECORDS

ARIZONA

3707 E. Broadway Rd., Ste. 6
Phoenix, AZ 85040
[phone]

CALIFORNIA

41850 Christy St.
Fremont, CA 94538-5107
[phone]

14930 Northam St.
La Mirada, CA 90638-5753
[phone]

1970 Fulton Avenue
Sacramento, CA 95825
[phone]

7674 Clairemont Mesa Blvd.
San Diego, CA 92111
[phone]

16735 Saticoy St., Ste. 105
Van Nuys, CA 91406
[phone]

COLORADO

11839 E. 51st Ave.
Denver, CO 80239-2709
[phone]

FLORIDA

750 East Sample Road
Pompano Beach, FL 33064
[phone]

GEORGIA

4680 River Green Parkway NW
Duluth, GA 30096
[phone]

ILLINOIS

1450 Feehanville Dr.
Mt. Prospect, IL 60056-6011
[phone]

MARYLAND

7397 Washington Boulevard,
Suite 104 Elkridge, MD 21075
[phone]

MASSACHUSETTS

232 Providence Hwy.
Westwood, MA 02090
[phone]

MINNESOTA

6427 Penn Ave. South
Richfield, MN 55423
[phone]

MISSOURI

9876 Watson Road
St. Louis, MO 63126-2221
[phone]

NEBRASKA

4129 S. 84th St.
Omaha, NE 68127
[phone]

NEVADA

3375 S. Decatur Blvd.
Suites. 22 - 24
Las Vegas, NV 89102
[phone]

NEW JERSEY

251 Herrod Blvd.
Dayton, NJ 08810-1539
[phone]

NEW YORK

4917 Genessee Street
Cheektowaga, NY 14225
[phone]

OREGON

828 19th Avenue, N.W.
Portland, OR 97209
[phone]

PENNSYLVANIA

1704 Babcock Blvd.
Pittsburgh, PA 15209
[phone]

PUERTO RICO

200 Guayama St.
Hato Rey, PR 00917
[phone]

TENNESSEE

1120 Elm Hill P.
Suile 170 Nashville, TN 372
[phone]

TEXAS

12801 Stemmons Fwy Ste. 809
Farmers Branch, TX 75234
[phone]

12701 Directors Dr.
Stafford, TX 77477-3701
[phone]

3453 IH-35 North, Ste. 101
San Antonio, TX 78219
[phone]

WISCONSIN

Lincoln Plaza Shopping Ctr.
2245 S. 108th St. West Allis, WI
53227
[phone]

CUSTOMER’S RECORD

When you need service: Send
complete tool (prepaid) to one
of the Makita Factory Service
Centers listed, or to an Authorized
Makita Service Center. Be sure
to attach a letter to the outside of
the carton detailing the problem
with your tool.

Date Purchased

Dealer’s Name & Address

Model No.

Serial No.

15

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 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.

884483-062

Makita Corporation

3-11-8, Sumiyoshi-cho,

Anjo, Aichi 446-8502 Japan