Makita Sander BO4900V User Manual

Finishing Sander  
MODEL BO4900V  
DOUBLE  
INSULATION  
I N S T R U C T I O N M A N U A L  
WARNING:  
For your personal safety, READ and UNDERSTAND before using.  
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.  
w w w. m a k i t a t o o l s . c o m  
 
change the plug in any way. Double insula-  
tion eliminates the need for the three wire  
grounded power cord and grounded power  
supply system.  
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.  
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.  
6. Do not expose power tools to rain or wet  
conditions. Water entering a power tool will  
increase the risk of electric shock.  
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.  
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.  
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.  
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.  
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.  
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.  
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.  
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.  
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.  
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.  
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.  
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.  
3
 
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.  
tenance performed by unqualified personnel  
could result in a risk of injury.  
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.  
SERVICE  
23. Tool service must be performed only by  
qualified repair personnel. Service or main-  
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.  
Table 1: Minimum gage for cord  
Volts  
120 V  
Total length of cord in feet  
Ampere Rating  
25 ft.  
50 ft.  
100 ft.  
150 ft.  
More Than  
Not More Than  
AWG  
0
6
10  
12  
6
18  
18  
16  
14  
16  
16  
16  
12  
16  
14  
14  
14  
12  
12  
10  
12  
16  
Not Recommended  
SPECIFIC SAFETY RULES  
USB040-4  
DO NOT let comfort or familiarity with product (gained from  
repeated use) replace strict adherence to sander safety rules. If  
you use this tool unsafely or incorrectly, you can suffer serious  
personal injury.  
1. Hold tool 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. Always use safety glasses or goggles.  
Ordinary eye or sun glasses are NOT  
safety glasses.  
3. Hold the tool firmly.  
4. Do not leave the tool running. Operate the  
tool only when hand-held.  
4
 
5. This tool has not been waterproofed, so  
do not use water on the workpiece sur-  
face.  
7. Use of this tool to sand some products,  
paints and wood could expose user to  
dust containing hazardous substances.  
Use appropriate respiratory protection.  
6. Ventilate your work area adequately when  
you perform sanding operations.  
SAVE THESE INSTRUCTIONS  
WARNING:  
MISUSE or failure to follow the safety rules stated in this  
instruction manual may cause serious personal injury.  
SYMBOLS  
USD205-1  
The followings show the symbols used for tool.  
V .......................volts  
................alternating current  
....................no load speed  
A .......................amperes  
n
˚
Hz .....................hertz  
....................Class II Construction  
.../min................orbits per minute  
5
 
FUNCTIONAL  
DESCRIPTION  
CAUTION:  
Always be sure that the tool is switched off and  
unplugged before adjusting or checking function on the  
tool.  
001681  
Switch action  
CAUTION:  
1
2
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. 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.  
3
1. Speed adjusting dial  
2. Lock button  
3. Switch trigger  
Speed adjusting dial  
CAUTION:  
If the tool is operated continuously at low speeds, the  
motor will get overloaded and heated up.  
The speed adjusting dial can be turned only as far as 5  
and back to 1. Do not force it past 5 or 1, or the speed  
adjusting function may no longer work.  
The tool speed can be infinitely adjusted between 4,000 and  
10,000 orbits per minute by turning the speed adjusting dial,  
which is marked 1 to 5. Higher speed is obtained when the  
dial is turned in the direction of number 5, lower speed is  
obtained when it is turned in the direction of number 1.  
Adjust the desired tool speed for the kind of work.  
ASSEMBLY  
CAUTION:  
Always be sure that the tool is switched off and  
unplugged before carrying out any work on the tool.  
6
 
Installing or removing abrasive paper  
For conventional type of abrasive paper with pre-  
punched holes (standard equipment):  
001682  
Turn the clamp lever counterclockwise. Insert the paper end  
into the clamper, aligning the holes in the paper with those in  
the pad. Then return the clamp lever to the original position  
to secure the paper. Repeat the same process for the other  
end of the tool, maintaining the proper paper tension.  
1
3
2
1. Clamp lever  
2. Conventional type of abrasive  
paper with pre-punched holes  
3. Pad  
For conventional type of abrasive paper without pre-  
punched holes (optional accessory):  
001683  
Turn the clamp lever counterclockwise. Insert the paper end  
into the clamper, aligning the paper edges even and parallel  
with the sides of the base. Then return the clamp lever to the  
original position to secure the paper. Repeat the same pro-  
cess for the other end of the tool, maintaining the proper  
paper tension.  
1
Place the punch plate (optional accessory) over the paper so  
that the guide of the punch plate is flush with the sides of the  
pad. Then press the punch plate to make holes in the paper.  
2
1. Punch plate  
2. Conventional type of abrasive  
paper without pre-punched holes  
For hook-and-loop type of abrasive paper with pre-  
punched holes (optional accessory):  
001684  
Remove all dirt or foreign matter from the pad. Attach the  
paper to the pad, aligning the holes in the paper with those in  
the pad.  
1
2
CAUTION:  
Never use pressure-sensitive abrasive paper.  
1. Hook-and-loop type of abrasive  
paper with pre-punched holes  
2. Pad for hook-and-loop type of  
abrasive paper  
7
 
Installing paper dust bag  
001685  
Place the paper dust bag on the paper dust bag holder with  
its front side upward. Insert the front fixing cardboard of the  
paper dust bag into the groove of the paper dust bag holder.  
2
1
3
1. Groove  
2. Front fixing cardboard  
3. Paper dust bag  
001686  
Then press the upper part of the front fixing card-board in  
arrow direction to hook it onto the claws.  
1
2
1. Claws  
2. Upper part  
001687  
Insert the notch of the paper dust bag into the guide of the  
paper dust bag holder. Then install the paper dust bag holder  
set on the tool.  
1
2
1. Guide  
2. Notch  
001688  
8
 
OPERATION  
CAUTION:  
Never run the tool without the abrasive paper. You may  
seriously damage the pad.  
Never force the tool. Excessive pressure may decrease  
the sanding efficiency, damage the abrasive paper and/  
or shorten tool life.  
The front grip is a screwed type one. Always be sure that  
the front grip is tightened securely before operation.  
001689  
Turn the tool on and wait until it attains full speed. Then gen-  
tly place the tool on the workpiece surface. Keep the base  
flush with the workpiece and apply a light pressure on the  
tool.  
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, car-  
bon brush inspection and replacement, any other mainte-  
nance 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.  
Abrasive paper (with pre-punched holes)  
Abrasive paper (without pre-punched holes)  
Abrasive paper (with pre-punched holes, hook-and-loop  
type)  
Punch plate  
Pad (for conventional type)  
Pad (for hook-and-loop type)  
Dust bag  
Dust nozzle  
Paper dust bag  
Paper dust bag holder  
10  
 
Memo  
11  
 
Memo  
12  
 
First-Class  
Postage  
Required  
Post Office will  
not deliver  
without proper  
postage.  
Makita U.S.A., Inc.  
14930 Northam Street  
La Mirada, CA 90638-5753  
Fold  
 
MAIL THIS PORTION  
Your answers to the following questions are appreciated.  
1.This product was purchased from:  
3. How did you learn about this product:  
Home Center  
Other (  
)
Magazine  
Radio  
Hardware/Lumber Store  
Tool Distributor  
From Dealer  
Newspaper  
Store Display  
Catalog  
Exhibition  
From Friend  
Previous Usage  
Other (  
Industrial Supply  
Construction Supply  
)
2. Use of the product is intended for:  
4. Most favored points are:  
Construction Trade  
Industrial Maintenance  
Home Maintenance  
Hobby  
Design  
Repair Service  
Durability  
Power  
Features  
Size  
Price  
Other (  
)
Other (  
)
Makita Brand  
5. Any comments:  
DATE PURCHASED  
MONTH  
MODEL NO.  
DAY  
YEAR  
SERIAL NO.  
STATUS  
SEX  
Married Single  
M
F
INTL.  
LAST NAME / COMPANY NAME  
STREET ADRESS  
CITY  
AREA  
CODE  
STATE  
ZIP CODE  
PHONE  
40-49  
Under 19  
20-29  
30-39  
50-60  
Over 60  
AGE:  
BE SURE TO COMPLETE THE CUSTOMERS PORTION OF THIS FORM AND RETAIN FOR YOUR RECORDS.  
Please return this portion by facsimile or mail.  
Facsimile No: (714) 522-8133  
 
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FACTORY SERVICE CENTERS  
1-800-4-MAKITA  
RETAIN THIS PORTION FOR YOUR RECORDS  
ARIZONA  
FLORIDA  
MISSOURI  
PENNSYLVANIA  
1704 Babcock Blvd.  
Pittsburgh, PA 15209  
(412) 822-7370  
3707 E. Broadway Rd., Ste. 6  
Phoenix, AZ 85040  
(602) 437-2850  
750 East Sample Road  
Pompano Beach, FL 33064  
(954) 781-6333  
9876 Watson Road  
St. Louis, MO 63126-2221  
(314) 909-9889  
CALIFORNIA  
GEORGIA  
NEBRASKA  
PUERTO RICO  
41850 Christy St.  
Fremont, CA 94538-5107  
(510) 657-9881  
4680 River Green Parkway NW  
Duluth, GA 30096  
(770) 476-8911  
4129 S. 84th St.  
Omaha, NE 68127  
(402) 597-2925  
200 Guayama St.  
Hato Rey, PR 00917  
(787) 250-8776  
14930 Northam St.  
La Mirada, CA 90638-5753  
(714) 522-8088  
ILLINOIS  
NEVADA  
3375 S. Decatur Blvd.  
Suites. 22 - 24  
Las Vegas, NV 89102  
(702) 368-4277  
TENNESSEE  
1120 Elm Hill P.  
Suile 170 Nashville, TN 372  
(615) 248-3321  
1450 Feehanville Dr.  
Mt. Prospect, IL 60056-6011  
(847) 297-3100  
1970 Fulton Avenue  
Sacramento, CA 95825  
(916) 482-5197  
MARYLAND  
TEXAS  
7674 Clairemont Mesa Blvd.  
San Diego, CA 92111  
(858) 278-4471  
7397 Washington Boulevard,  
Suite 104 Elkridge, MD 21075  
(410) 796-4401  
NEW JERSEY  
12801 Stemmons Fwy Ste. 809  
Farmers Branch, TX 75234  
(972) 243-1150  
251 Herrod Blvd.  
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(609) 655-1212  
16735 Saticoy St., Ste. 105  
Van Nuys, CA 91406  
(818) 782-2440  
12701 Directors Dr.  
Stafford, TX 77477-3701  
(281) 565-8665  
MASSACHUSETTS  
232 Providence Hwy.  
Westwood, MA 02090  
(781) 461-9754  
NEWYORK  
4917 Genessee Street  
Cheektowaga, NY 14225  
(716) 685-9503  
3453 IH-35 North, Ste. 101  
San Antonio, TX 78219  
(210) 228-0676  
COLORADO  
11839 E. 51st Ave.  
Denver, CO 80239-2709  
(303) 371-2850  
MINNESOTA  
6427 Penn Ave. South  
Richfield, MN 55423  
(612) 869-5199  
OREGON  
828 19th Avenue, N.W.  
Portland, OR 97209  
(503) 222-1823  
WISCONSIN  
Lincoln Plaza Shopping Ctr.  
2245 S. 108th St. West Allis, WI  
53227  
(414) 541-4776  
CUSTOMER’S RECORD  
Date Purchased  
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.  
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  
Makitas 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  
MERCHANTABILITYAND 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.  
Makita Corporation  
3-11-8, Sumiyoshi-cho,  
Anjo, Aichi 446-8502 Japan  
884420A066  
 

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