MAKITA VR251D User Manual

Cordless Concrete  
Vibrator  
MODEL VR251D  
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  
Electrical Safety  
Tool Use and Care  
4. A battery operated tool with integral bat-  
teries or a separate battery pack must be  
recharged only with the specified charger  
for the battery. A charger that may be suit-  
able for one type of battery may create a risk  
of fire when used with another battery.  
12. 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.  
13. 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.  
5. Use battery operated tool only with specif-  
ically designated battery pack. Use of any  
other batteries may create a risk of fire.  
14. Do not use tool if switch does not turn it  
on or off. A tool that cannot be controlled  
with the switch is dangerous and must be  
repaired.  
Personal Safety  
6. 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.  
15. Disconnect battery pack from tool or  
place the switch in the locked or off posi-  
tion before making any adjustments,  
changing accessories, or storing the tool.  
Such preventive safety measures reduce the  
risk of starting the tool accidentally.  
7. 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.  
16. Store idle tools out of reach of children  
and other untrained persons. Tools are  
dangerous in the hands of untrained users.  
17. When battery pack is not in use, keep it  
away from other metal objects like: paper  
clips, coins, keys, nails, screws, or other  
small metal objects that can make a con-  
nection from one terminal to another.  
Shorting the battery terminals together may  
cause sparks, burns, or a fire.  
8. Avoid accidental starting. Be sure switch  
is in the locked or off position before  
inserting battery pack. Carrying tools with  
your finger on the switch or inserting the bat-  
tery pack into a tool with the switch on invites  
accidents.  
9. 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.  
18. Maintain tools with care. Keep cutting  
tools sharp and clean. Properly maintained  
tools with sharp cutting edge are less likely to  
bind and are easier to control.  
10. Do not overreach. Keep proper footing  
and balance at all times. Proper footing and  
balance enable better control of the tool in  
unexpected situations.  
19. Check for misalignment or binding of  
moving parts, breakage of parts, and any  
other condition that may affect the tool’s  
operation. If damaged, have the tool ser-  
viced before using. Many accidents are  
caused by poorly maintained tools.  
11. Use safety equipment. Always wear eye  
protection. Dust mask, non-skid safety  
shoes, hard hat, or hearing protection must  
be used for appropriate conditions.  
20. Use only accessories that are recom-  
mended by the manufacturer for your  
model. Accessories that may be suitable for  
one tool may create a risk of injury when  
used on another tool.  
3
22. 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  
shock or injury.  
SERVICE  
21. Tool service must be performed only by  
qualified repair personnel. Service or main-  
tenance performed by unqualified personnel  
may result in a risk of injury.  
SPECIFIC SAFETY RULES  
USB064-1  
DO NOT let comfort or familiarity with product (gained from  
repeated use) replace strict adherence to cordless concrete  
vibrator safety rules. If you use this tool unsafely or incorrectly,  
you can suffer serious personal injury.  
1. Always keep your hands and face away  
6. Do not set the tool down and switch it on.  
The vibrating head may whip around out  
of control and cause an accident.  
from vibrating head when operating.  
2. Switch off the tool immediately if you  
notice abnormal noise or something  
faulty during operation.  
7. Be careful not to allow water, wet concrete  
or the like to get into the tool. Do not let  
the tool fall into wet concrete.  
3. Inspect the tool carefully for breakage,  
cracks or deformation if you accidentally  
drop it or strike it against something.  
8. Insert the vibrating head carefully  
between iron/steel frames or reinforcing  
rods not to come in contact with them.  
4. Do not allow pieces of metal, water or  
other foreign objects to get into the  
charger port where the charging terminals  
are located.  
9. Do not crush or twist the flexible hose.  
10. Do not overly bend the flexible hose.  
11. Use a wet cloth or the like to carefully  
wipe off any wet concrete left on the tool  
after use. Extra care should be given to  
thorough cleaning of the vents, switch  
area, cover openings, etc.  
5. Do not carry the tool with finger on  
switch.  
SAVE THESE INSTRUCTIONS  
WARNING:  
MISUSE or failure to follow the safety rules stated in this  
instruction manual may cause serious personal injury.  
4
SYMBOLS  
USD303-1  
The followings show the symbols used for tool.  
V .......................volts  
....................no load speed  
n
˚
...................direct current  
.../min................vibration per minute  
IMPORTANT SAFETY INSTRUCTIONS FOR  
CHARGER & BATTERY CARTRIDGE  
USC002-3  
1. SAVE THESE INSTRUCTIONS- This man-  
ual contains important safety and operat-  
ing instructions for battery charger.  
6. To reduce risk of damage to electric plug  
and cord, pull by plug rather than cord  
when disconnecting charger.  
2. Before using battery charger, read all  
instructions and cautionary markings on  
(1) battery charger, (2) battery, and (3)  
product using battery.  
7. Make sure cord is located so that it will  
not be stepped on, tripped over, or other-  
wise subjected to damage or stress.  
8. An extension cord should not be used  
unless absolutely necessary. Use of  
improper extension cord could result in a  
risk of fire and electric shock. If extension  
cord must be used, make sure:  
3. CAUTION - To reduce risk of injury, charge  
only MAKITA rechargeable batteries  
marked on the charger label. Other types  
of batteries may burst causing personal  
injury and damage.  
a. That pins on plug of extension cord  
are the same number, size, and shape  
as those of plug on charger;  
4. Do not expose charger to rain or snow.  
5. Use of an attachment not recommended  
or sold by the battery charger manufac-  
turer may result in a risk of fire, electric  
shock, or injury to persons.  
b. That extension cord is properly wired  
and in good electrical condition; and  
c. That wire size is at least as large as  
the one specified in the table below.  
Table 1: RECOMMENDED MINIMUM AWG SIZE FOR EXTENSION CORDS FOR BATTERY CHARGERS  
Length of Cord (Feet)  
AWG Size of Cord  
25  
18  
50  
18  
100  
18  
150  
16  
9. Do not operate charger with damaged  
11. Do not disassemble charger or battery  
cartridge; take it to a qualified serviceman  
when service or repair is required. Incor-  
rect reassembly may result in a risk of  
electric shock or fire.  
cord or plug - replace them immediately.  
10. Do not operate charger if it has received a  
sharp blow, been dropped, or otherwise  
damaged in any way; take it to a qualified  
serviceman.  
5
12. To reduce risk of electric shock, unplug  
charger from outlet before attempting any  
maintenance or cleaning. Turning off con-  
trols will not reduce this risk.  
15. If operating time has become excessively  
shorter, stop operating immediately. It  
may result in a risk of overheating, possi-  
ble burns and even an explosion.  
13. The battery charger is not intended for  
use by young children or infirm persons  
without supervision.  
16. If electrolyte gets into your eyes, rinse  
them out with clear water and seek medi-  
cal attention right away. It may result in  
loss of your eyesight.  
14. Young children should be supervised to  
ensure that they do not play with the bat-  
tery charger.  
ADDITIONAL SAFETY RULES FOR CHARGER &  
BATTERY CARTRIDGE  
1. Do not charge Battery Cartridge when  
temperature is BELOW 10°C (50°F) or  
ABOVE 40°C (104°F).  
A battery short can cause a large current  
flow, overheating, possible burns and  
even a breakdown.  
2. Do not attempt to use a step-up trans-  
former, an engine generator or DC power  
receptacle.  
5. Do not store the tool and Battery Car-  
tridge in locations where the temperature  
may reach or exceed 50°C (122°F).  
3. Do not allow anything to cover or clog the  
6. Do not incinerate the Battery Cartridge  
even if it is severely damaged or is com-  
pletely worn out. The battery cartridge can  
explode in a fire.  
charger vents.  
4. Do not short the battery cartridge:  
(1) Do not touch the terminals with any  
7. Be careful not to drop, shake or strike bat-  
conductive material.  
tery.  
(2) Avoid storing battery cartridge in a  
container with other metal objects  
such as nails, coins, etc.  
8. Do not charge inside a box or container of  
any kind. The battery must be placed in a  
well ventilated area during charging.  
(3) Do not expose battery cartridge to  
water or rain.  
SAVE THESE INSTRUCTIONS  
6
SYMBOLS  
The following show the symbols used for the charger. Be sure that you understand their  
meaning before use.  
.......... Ready to charge  
.............Charging  
...........Delay charge (Cooling)  
........Defective battery  
....Conditioning  
.............Charging complete  
...........Cooling abnormality  
7
FUNCTIONAL  
DESCRIPTION  
001958  
Installing or removing battery cartridge  
2
Always switch off the tool before insertion or removal of  
the battery cartridge.  
To remove the battery cartridge, open the cover and  
withdraw it from the tool while pressing the buttons on  
both sides of the cartridge.  
3
1
To insert the battery cartridge, align the tongue on the  
battery cartridge with the groove in the housing and slip  
it into place. Always insert it all the way until it locks in  
place with a little click. If not, it may accidentally fall out  
of the tool, causing injury to you or someone around you.  
1. Cover  
2. Button  
3. Battery cartridge  
Do not use force when inserting the battery cartridge. If  
the cartridge does not slide in easily, it is not being  
inserted correctly.  
004393  
Charging  
1
2
1. Plug the battery charger into the proper AC voltage  
source. The charging light will flash in green color.  
3
2. Insert the battery cartridge so that the plus and minus  
terminals on the battery cartridge are on the same sides  
as their respective markings on the high capacity battery  
charger. Insert the cartridge fully into the port so that it  
rests on the charger port floor.  
1. Battery cartridge  
2. Charging light  
3. Battery charger  
3. When the battery cartridge is inserted, the charging light  
color will change from green to red and charging will  
begin. The charging light will remain lit steadily during  
charging.  
4. When the charging light color changes from red to  
green, the charging cycle is complete.  
5. If you leave the battery cartridge in the charger after the  
charging cycle is complete, the charger will switch into  
its trickle charge (maintenance charge)mode.  
6. After charging, unplug the charger from the power  
source.  
8
NOTE:  
The battery charger is for charging Makita battery  
cartridge. Never use it for other purposes or for other  
manufacturers batteries.  
When you charge a new battery cartridge or a battery  
cartridge which has not been used for a long period of  
time, it may not accept a full charge. This is a normal  
condition and does not indicate a problem. You can  
recharge the battery cartridge fully after discharging it  
completely and recharging a couple of times.  
If you charge a battery cartridge from a just operated  
tool or a battery cartridge which has been left in a  
location exposed to direct sunlight or heat for a long  
time, the charging light may flash in red color. If this  
occurs, wait for a while. Charging will begin after the  
battery cartridge cools. The battery cartridge will cool  
faster if you remove the battery cartridge from the high  
capacity battery charger.  
If the charging light flashes alternately in green and red  
color, a problem exists and charging is not possible. The  
terminals on the charger or battery cartridge are clogged  
with dust or the battery cartridge is worn out or  
damaged.  
Trickle charge (Maintenance charge)  
If you leave the battery cartridge in the charger to prevent  
spontaneous discharging after full charge, the charger will  
switch into its trickle charge (maintenance charge)mode  
and keep the battery cartridge fresh and fully charged.  
Tips for maintaining maximum battery life  
1. Charge the battery cartridge before completely dis-  
charged.  
Always stop tool operation and charge the battery car-  
tridge when you notice less tool power.  
2. Never recharge a fully charged battery cartridge.  
Overcharging shortens the battery service life.  
3. Charge the battery cartridge with room temperature at  
10°C - 40°C (50°F - 104°F).  
Let a hot battery cartridge cool down before charging it.  
4. Charge the Nickel Metal Hydride battery cartridge when  
you do not use it for more than six months.  
9
001959  
Switch action  
CAUTION:  
1
Before inserting the battery cartridge into the tool,  
always check to see that the switch trigger actuates  
properly and returns to the OFFposition when  
released.  
To start the tool, simply pull the switch trigger. Release the  
switch trigger to stop.  
1. Switch trigger  
Hold the tool straight when inserting/operating. Use the tool  
within the effective vibrations range at equidistant intervals.  
The effective air bubble removal range is about ten times  
diameter of the vibrating head, or around 250 mm (9-27/32).  
Do not use this tool to move concrete within a form. The  
mortar will just move away and the coarse aggregate will  
remain, causing segregation.  
OPERATION  
001960  
Effective leveling and removal of air bubbles  
Removal of the air bubbles is complete after you have  
worked the tool throughout each effective range, the con-  
crete stops shrinking, and the mortar has risen evenly to the  
surface, giving off a light appearance. Gently remove the  
operating tool not to leave holes.  
NOTE:  
Vibrating too long in a single place causes concrete  
segregation.  
001961  
When the coarse aggregates segregates when placing  
concrete, shovel out the coarse aggregate and put it  
where there is plenty of mortar. Then use the tool on it.  
Dont leave coarse aggregate in the segregated  
condition.  
10  
When concreting a slope site, always pour from the bottom at  
the beginning. This way the weight of the freshly poured con-  
crete and vibration will lead to effective removal of air bub-  
bles. Conversely, if the pouring is done first from above, the  
mortar will separate and eventually slide to the bottom.  
MAINTENANCE  
CAUTION:  
Always be sure that the tool is switched off and the  
battery cartridge is removed before attempting to  
perform inspection or maintenance.  
EN0001-1  
Recycling the Battery  
The only way to dispose of a Makita battery is to recycle it.  
The law prohibits any other method of disposal.  
To recycle the battery:  
1. Remove the battery from the tool.  
Ni-Cd  
2. a) Take the battery to your nearest Makita Factory Ser-  
vice Center  
or  
b) Take the battery to your nearest Makita Authorized  
Service Center or Distributor that has been desig-  
nated as a Makita battery recycling location.  
Call your nearest Makita Service Center or Distributor to  
determine the location that provides Makita battery recycling.  
See your local Yellow Pages under “Tools-Electric”.  
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.  
Plastic carrying case  
Various type of Makita genuine batteries and chargers  
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  
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(972) 243-1150  
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16735 Saticoy St., Ste. 105  
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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  
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(210) 228-0676  
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11839 E. 51st Ave.  
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MINNESOTA  
6427 Penn Ave. South  
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OREGON  
828 19th Avenue, N.W.  
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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  
884240E068  

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