Makita GV7OOOC User manual

Electronic Disc Sander
180 mm (7") MODEL GV7OOOC
2,500 - 4,70O/min.
INSTRUCTION MANUAL
210 mm (8-114'7 2.0 kg (4.4 Ibs) 518
DOUBLE
INSULATION
SPECIFICATIONS
I Overall length 1 Net weight 1 Spindlethread
No load speed
(RPM)

GENERAL SAFETY RULES USA002-1
(For All Tools)
WARNING! Read and understand all instructions. Failure
tofollow
all instructionslisted below, may result in electric
shock, fire and/or serious personal injury.
SAVE THESE INSTRUCTIONS
Work Area
1. Keep your work area cleanandwell lit. Clutteredbenches and dark areas invite
accidents.
2. Donotoperate powertools inexplosiveatmospheres, suchas inthe 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.
Distractions can cause you to lose control.
Electrical Safety
4. DoubleInsulatedtools are equippedwithapolarizedplug(onebladeis 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. Double insulation El eliminates the need for the three
wire grounded power cord and grounded power supply system.
5. Avoid body contactwith grounded surfaces such as pipes, radiators, ranges
and refrigerators. There is an increasedrisk of electric shock if your body is
grounded.
6. Do notexpose powertools torainor wet conditions. Water entering a power
tool will increase the risk of electric shock.
7. Do notabusethe cord. Never use the cord tocarry the tools or pullthe plug
from an outlet. Keepcord awayfrom heat,
oil, sharpedges or movingparts.
Replace damaged cords immediately. Damaged cords increase the risk
of
electric shock.
8. When operating apower tooloutside, useanoutdoor 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, watchwhat you aredoinganduse commonsensewhen operating
a power tool.
Do not use tool while tired or under the influence of drugs,
alcohol, or medication.
A moment of inattention while operatingpower tools
may result in serious personal injury.
IO. Dressproperly. Do notwear looseclothingor jewelry. Contain long hair. Keep
your hair, clothing, andglovesaway from movingparts. Loose clothes, jewelry
or long hair can be caught in moving parts.
2

11. Avoid accidental starting. Be sure switch is off beforeplugging in. Carrying
tools
with your finger onthe switch or plugging in toolsthat have the switch
on invites accidents.
12. Remove adjusting keys or wrenches before turning the tool on. A wrench
or a key that isleft attachedtoa rotating part of thetool may result
in personal
injury.
13. Donotoverreach.Keep proper footingandbalanceatalltimes. Properfooting
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.
Tool Use and Care
15. Use clamps or other practicalway tosecure and support the workpiece to
a stable platform. Holdingthe work by handor againstyour body isunstable
and may lead to
loss of control.
16. Donot force tool. Usethe correcttoolfor 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. Disconnectthe plugfromthe 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
maintainedtools,
with sharp cuttingedges are less likely to bindand are easier
to control.
21. Check for misalignment or binding of movingparts, breakage of parts, and
any other conditionthat may affect the tools operation.
If damaged, have
the tool serviced before using. Many accidents are caused by poorly
maintained tools.
22. Use only accessories that are recommended by the manufacturer for your
model. Accessoriesthat may be suitable for one tool, may becomehazardous
when used on another tool.
SERVICE
23. Tool service must be performed only by qualified repair personnel. Service
or maintenance 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 sectionof this manual. Useof unauthorized
parts or failure tofollow MaintenanceInstructions maycreate a risk of electric
shock or injury.
3

Specific Safety Rules
US8046 1
1. Accessories mustbe ratedfor at least the speed recommended on the tool
warning label. Wheels and other accessories running over rated speed can
fly apart and cause injury.
2. Holdtoolby insulated gripping surfaceswhenperforminganoperationwhere
the cutting tool may contact hidden wiring or its own cord. Contact
with
a "live" wire will make exposed metalparts of the tool "live" and shock the
operator.
3. Check the backing pad carefully for cracks, damage or deformity before
operation. Replace cracked, damaged or deformed pad immediately.
4. Hold the tool firmly.
5. Keep hands away from rotating parts.
6. Makesurethe abrasivedisc isnotcontactingtheworkpiecebeforethe switch
is turned on.
7. Whensanding metal surfaces, watch out for flying sparks. Holdthe tool so
that sparks fly away from you and other persons or flammable materials.
8. Do not leave the tool running. Operate the tool only when hand-held.
9. Do nottouchthe workpieceimmediatelyafter operation; it may beextremely
hot and could burn your skin.
IO. Check that the workpiece is properly supported.
11. Pay attentionthat the wheel continuestorotateafter the toolisswitchedoff.
12. Thistoolhasnotbeen waterproofed, so do notuse water onthe workpiece
13. Ventilate your work area adequately when youperformsanding operations.
surface.
SAVE THESE INSTRUCTIONS.
4

The followings show the symbols used for tool.
v .................................... volts
A .................................... amperes
Hz .................................... hens
?., .................................... alternating current
I% .................................... no load speed
.................................... Class I1 Construction
.../ min ................................... revolutions or reciprocation per minute
5

FUNCTIONAL DESCRIPTION
Switch action
CAUTION:
Beforepluggingin the tool, always check to see that the switch trigger actuatesproperly
andreturns to the
"OFF" position when released.
To start the tool, simply pull the trigger.
Releasethe trigger to stop. For continuous
operation, pullthe trigger andthen push in
the lock button.
To stop the tool from the
locked position, pull the trigger fully, then
releaseit.
Switchtrigger
-\\ \
Lock button
Speed adjusting dial
The rotatingspeedcan bechangedby turning the speedadjustingdialto a given number
setting from
1 to 5.
Higherspeed isobtainedwhen the dial is turned inthe direction of number 5.
And lower speedis obtainedwhen it isturned inthe direction of number 1.
Referto the table below for the relationshipbetween the numbersettings on thedialand
the approximaterotating speed.
Number
1
1
2
1
3
1
4
1
5
RPM Imin)
2500
1
2800
1
3500
1
4200
1
4700
CAUTION:
The speedadjustingdial can beturned only as far as
5 andback to 1. Do not force it past
5 or 1, or the speed adjustingfunction mayno longer work.
The tool equipped with electronic function is easy to operate because of the following
features.
Electronicspeedcontrol for obtainingconstant speed
Possibleto get fine finish, becausethe rotating speed is kept constantlyeven under the
loadedcondition.
Soft start feature
Safetyandsoft start becauseof suppressedstarting shock.
6

ASSEMBLY
Installing side grip (auxiliary handle) 81 cover
CAUTION:
Always be surethat the tool is switched off and unpluggedbefore installingor removing
Always besure that the side grip is installedsecurely.
Installthe cover, then screw the side grip on the
tool securely.The side grip and the cover
can be installedon either side of the tool.
the sidegrip and the cover.
Cover
Side grip
Installing or removing abrasive disc
CAUTION:
Always be sure that the tool is switched
off and unpluggedbefore installingor removing
the abrasive disc.
Mount the rubber padonto the spindle.
Fit the abrasive disc on over the pad and
screw the lock nut onto the spindle.
Holdthe spindlewith the wrench
so that it
cannot revolve, then use the lock nut
wrench and securely tighten clockwise.
To removethe lock nut, follow the installa-
tion procedureinreverse.
Lock nut
Lock nut wrench
7

OPERATION
Sanding operation
CAUTION:
Always wear safety glasses or
a face shieldduring operation.
In general, keep the abrasive disc at an I
angle of about .15" to the workpiece sur-
face.
Apply slight pressure
only. Excessivepres-
sure will result in poor performance and
prematurewear to the abrasive
disc.
CAUTIO N:
Never run the tool without the abrasive
disc.
You may seriouslydamage the pad.
8

MAINTENANCE
CAUTION:
Always be sure that the tool is switched
off and unpluggedbefore attempting to perform
inspectionor maintenance.
Replacing carbon brushes
Remove and check the carbon brushes
regularly. Replacewhen they wear down to
the limit mark. 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 screwdriver to remove the brush
holder caps. Take out the worn carbon
brushes, insert the new ones and secure
the brushholder caps.
-7
Brush holder cap
To maintainproduct SAFETY and RELIABILITY, repairs, maintenanceor adjustment should
be performed by Makita Authorized
or Factory Service Centers, always using Makita
replacementparts.
9

ACCESSORIES
CAUTION:
These accessories or attachments are recommended for use with your Makita tool specified inthis
manual. The use of any other accessories or attachments might present a risk of injury to persons.
The accessories or attachments shouldbe used only inthe properand intended manner.
Abrasive disc Rubberpad
Lock nut
Wrench
Lock nutwrench
\
0
10

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:
0 Leadfrom lead-based paints,
0 Crystalline silica from bricks and cement and other masonry products, and
0 Arsenic andchromiumfrom 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 masksthat are specially designed
to filter out microscopicparticles.
I
MAKflA LIMITED ONE YEAR WARRANTY
I
Warranty Policy
Every Makita tool is thorou ly inspected and tested before leaving the factory. It is warranted to
be free of defects from workkshipand 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, tooneof 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:
b repairs have been made orattemvted by others:
b repairs are required because of normal wear and tear:
b Thetool has been abused, misused or improperly maintained;
b alterationshave been made to the tool.
I
IN NO EVENT SHALL MAKITA BE LIABLE FOR ANY INDIRECT, INCIDENTAL OR CON-
SEQUENTIAL DAMAGES FROM THE SALEOR USE OFTHE PRODUCT. THIS DISCLAIMER
APPLIES BOTH DURING AND AFTER THETERM OFTHISWARRANTY.
MAKITA DISCLAIMS LIABILITY FOR ANY IMPLIED WARRANTIES, INCLUDING IMPLIED
WARRANTIES
OF “MERCHANTABILITY” AND “FITNESS FOR A SPECIFIC PURPOSE,”
AFTER THEONE-YEAR TERM OFTHISWARRANTY.
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 animplied warranty lasts,
so the above limitation may not apply to you.
- -
Makita Corporation
3-11 -8, Sumiyoshi-cho,
Anjo, Aichi 446-8502
Japan
884357-067
PRINTED IN JAPAN
2001 -4N