Makita HM1800 User manual

INSTRUCTION MANUAL
WARNING:
For your personal safety, READ and UNDERSTAND before using.
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.
Breaker Hammer
MODEL HM1800
002884
DOUBLE
INSULATION

2
SPECIFICATIONS
• 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
Work Area
1. Keep your work area clean and well lit.
Cluttered benches and dark areas invite acci-
dents.
2. 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.
3. Keep bystanders, children, and visitors
away while operating a power tool. Distrac-
tions can cause you to lose control.
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 elec-
trician to install a polarized outlet. Do not
change the plug in any way. Double insula-
tion eliminates the need for the three wire
grounded power cord and grounded power
supply system.
5. Avoid body contact with grounded sur-
faces such as pipes, radiators, ranges and
refrigerators. There is an increased risk of
electric shock if your body is grounded.
Model HM1800
Blows per minute 1,000
Overall length 818 mm (32-1/4”)
Net weight 29.1 kg (64 lbs)

3
6. Do not expose power tools to rain or wet
conditions. Water entering a power tool will
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. Damaged
cords increase the risk of electric shock.
8. When operating a power tool outside, use
an outdoor extension cord marked “W-A”
or “W”. These cords are rated for outdoor
use and reduce the risk of electric shock.
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. A moment of inattention while
operating power tools may result in serious
personal injury.
10. Dress properly. Do not wear loose cloth-
ing or jewelry. Contain long hair. Keep
your hair, clothing, and gloves away from
moving parts. Loose clothes, jewelry, or long
hair can be caught in moving parts.
11. Avoid accidental starting. Be sure switch
is off before plugging in. Carrying tools with
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. A wrench or a
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. Proper footing and
balance enables better control of the tool in
unexpected situations.
14. Use safety equipment. Always wear eye
protection. Dust mask, non-skid safety
shoes, hard hat, or hearing protection must
be used for appropriate conditions. Ordinary
eye or sun glasses are NOT eye protection.
Tool Use and Care
15. Use clamps or other practical way to
secure and support the workpiece to a
stable platform. Holding the work by hand or
against your body is unstable and may lead
to loss of control.
16. Do not force tool. Use the correct tool for
your application. The correct tool will do the
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. Any tool that cannot be controlled
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. Tools are
dangerous in the hands of untrained users.
20. Maintain tools with care. Keep cutting
tools sharp and clean. Properly maintained
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 ser-
viced before using. Many accidents are
caused by poorly maintained tools.
22. Use only accessories that are recom-
mended by the manufacturer for your
model. Accessories that may be suitable for
one tool, may become hazardous when used
on another tool.
SERVICE
23. Tool service must be performed only by
qualified repair personnel. Service or main-
tenance performed by unqualified personnel
could result in a risk of injury.

4
24. When servicing a tool, use only identical
replacement parts. Follow instructions in
the Maintenance section of this manual.
Use of unauthorized parts or failure to follow
Maintenance instructions may create a risk of
electric shock or injury.
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 num-
ber, the heavier the cord.
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 seri-
ous 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. Contact with a “live”wire will
make exposed metal parts of the tool “live”
and shock the operator.
2. Wear ear protectors when using the tool
for extended periods. Prolonged exposure
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.
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 lubrica-
tion. Without proper warm-up, hammering
operation is difficult.
Table 1: Minimum gage for cord
Ampere Rating Volts Total length of cord in feet
120 V 25 ft. 50 ft. 100 ft. 150 ft.
More Than Not More Than AWG
0 6 18 16 16 14
6 10 18161412
10 12 16 16 14 12
12 16 14 12 Not Recommended

5
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 mate-
rial 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.

6
FUNCTIONAL
DESCRIPTION CAUTION:
•Always be sure that the tool is switched off and
unplugged before adjusting or checking function on the
tool.
Switch action
CAUTION:
•Before plugging in the tool, always check to see that the
switch lever actuates properly and returns to the “OFF”
position when released.
To start the tool, simply squeeze the switch lever. Release
the switch lever to stop.
ASSEMBLY CAUTION:
•Always be sure that the tool is switched off and
unplugged before carrying out any work on the tool.
Installing or removing the bit
This tool accepts bits either with or without a collar on its
shank.
To install the bit, follow either procedure (1) or (2) described
below.
(1) For bits with a collar
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 posi-
tion.
1. Switch lever
1
002892
1. Bit with collar
2. Bit without coller
1
2
002928
1. Bit 2. Tool retainer
3. Tool holder 4. When the bit is inserted
5. When the bit is retained
1
2
3
45Fig.(1)
002934

7
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
Pivot the tool retainer front 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
cylinder to securely retain the bit.
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.
•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 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.
1. Notched portion 2. Tool retainer shaft
3. Cylinder 4. When the bit is inserted
5. When the bit is retained
1
2
34
5Fig.(2)
002931

8
MAINTENANCE CAUTION:
•Always be sure that the tool is switched off and
unplugged before attempting to perform inspection or
maintenance.
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.
Use a hex wrench to remove the motor housing cover.
Use a screwdriver to remove the brush holder caps. Take out
the worn carbon brushes, insert the new ones and secure
the brush holder caps.
1. Commutator
2. Insulating tip
3. Carbon brush
1
2
3
001146
1. Hex wrench 5
2. Motor housing cover
12
002959
1. Brush holder cap
2. Screwdriver
21
002960

9
Lubrication
This tool requires no hourly or daily lubrication because it
has a grease-packed lubrication system. It should be relubri-
cated 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.
First, switch off and unplug the tool.
Remove the plate 50 using a screwdriver, then replenish with
fresh grease (60 g; 2 oz). Use only Makita genuine hammer
grease (optional accessory). Filling with more than the speci-
fied 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 plate 50 and secure with the screws.
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.
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
•Hex wrench
•Wooden carrying case
1. Screwdriver
2. Plate 50
1
2
002974
1. Hammer grease
1
002975

Memo
10

Memo
11

Memo
12

13
Fold
Cut
Stamp
Timbre
Makita Canada Inc.
1950 Forbes Street,
Whitby, Ontario
L1N 7B7

14
Your answers to the following questions are appreciated.
Date Purchased Model No.
Serial No.
Initial Last Name
Street Address
City Province
AGE:
Male Female MarriedSingle
Month Day Year 20
Under 19 20-29 30-39 40-49 Over 50
Paste Paste Paste Paste Paste Paste Paste Paste
Paste Paste Paste Paste Paste Paste
Paste Paste Paste Paste Paste Paste
1. This product was purchased from?
Industrial Supply
Other ( )Tool Distributor
Hardware/lumber Store
2. Use of the product is intended for?
5. Any comments?
Home maintenance
Other ( )Industrial maintenance
Construction trade
3. How did you first learn of Makita Power Tools?
Catalog
Other ( )From dealer
Magazine/Newspaper
Store display
4. Most favored points are?
Makita Brand
PowerFeatures
Design
Other ( )Size
Price
Occupation:
Dealer's Name & Address:
Postal Code
Certificate of Warranty
Mail to Makita

15
Factory Service Centres
For the authorized service centre nearest you please refer to the local yellow pages directory under “tools”or con-
tact our customer service department (Tel) 1-800-263-3734
When you need service...
•Explain the problem in a letter
•Enclose the letter with the tool
•Package carefully and send prepaid
to the nearest Makita factory or
authorized service centre
CUSTOMER RECORD
DATE
PURCHASED:
DEALER’S NAME
& ADDRESS:
MODEL NO.:
SERIAL NO.:
Head Office: 1950 Forbes St., Whitby, Ontario, L1N 7B7
(905) 571 - 2200 1-800-263-3734
Regional Office: 11771 Hammersmith Way, Richmond
(604) 272 - 3104 1-800-663-0909B.C. V7A 5H6
Regional Office: 6389 boul. Couture, St. Leonard, Quebec
(514) 323 - 1223 1-800-361-7049H1P 3J5(Montreal)
Dartmouth: 202 Brownlow Avenue
(902) 468 - 7064 1-888-625-4821Dartmouth, N.S., B3B 1T5
Ville St. Laurent: 1140 Rue Bégin, Ville St. Laurent, Quebec
(514) 745 - 5025 1-888-745-5025H4R 1X1(Montreal)
Les Saules: 1200 St. Jean Baptiste, Unit 106, Les Saules,
(418) 871 - 5720 1-800-663-5757Quebec, G2E 5E8(Quebec)
Nepean: 210 Colonnade Road, Unit 11, Nepean,
(613) 224 - 5022 1-888-560-2214Ontario, K2E 7M1(Ottawa)
London: 317 Adelaide St. S., Unit 117, London,
(519) 686 - 3115 1-800-571-0899Ontario, N5Z 3L3
Whitby: 1950 Forbes St., Whitby, Ontario, L1N 7B7
(905) 571 - 2200 1-800-263-3734
Mississauga: 6350 Tomken Rd., Unit 8, Mississauga,
(905) 670 - 7255 1-888-221-9811Ontario, L5T 1Y3
Calgary: #8-6115 Fourth St. S.E., Calgary
(403) 243 - 3995 1-800-267-0445Alberta, T2H 2H9
Richmond: 11771 Hammersmith Way, Richmond, B.C.,
(604) 272 - 3104 1-800-663-0909V7A 5H6
Edmonton: 11614-149 Street, Edmonton, Alberta,
(780) 455 - 6644 1-888-455-6644T5M 3R3
Coquitlam: 2131 Hartley Ave., #103
(604) 525 - 7434 1-800-266-7738Coquitlam, B.C. V3K 2Z3
Winnipeg: 1670 St. James Street, Winnipeg, Manitoba,
(204) 694 - 0402 1-800-550-5073R3H 0L3
Saskatoon: 206A-2750 Faithful Avenue Saskatoon,
(306) 931 - 0111 1-888-931-0111Saskatchewan, S7K 6M6

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 Centres.
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 normal maintenance is required,
•repairs have been made or attempted by others,
•the tool has been abused, misused or improperly maintained,
•alterations have been made to the tool.
“The Makita Warranty is the only and the entire written warranty given by Makita for the Makita tools. No dealer or his agent
or employee is authorized to extend or enlarge upon this warranty by any verbal or written statement or advertisement.”
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 rights. The provisions contained in this warranty are not intended to limit, modify, take away
from, disclaim or exclude any warranties set forth in any provincial legislation. To the extent required by law, the provisions in
any provincial or federal legislation with respect to warranties take precedence over the provisions in this warranty.”
MAKITA LIMITED ONE YEAR WARRANTY
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 Corporation
3-11-8, Sumiyoshi-cho,
Anjo, Aichi 446-8502 Japan
883829-235