Makita GA7911 User Manual
Sander
MODEL GA7911
INSTRUCTION MANUAL
WAR NI NG :
For your personal safety, READ and UNDERSTAND before using.
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.
www.makitatools.com
SPECIFICATIONS
Model GA7911
No load speed (RPM) 6,000/min
Overall length 412 mm (16-1/4”)
Net weight 5.5 kg (12.1 lbs)
Spindle thread 5/8”
• Manufacturer reserves the right to change specifications without notice.
• Specifications may differ from country to country.
GENERAL SAFETY RULES
USA001-2
(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 Ar ea
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.
tions can cause you to lose control.
Powe r
Distrac-
Electrical Safety
4. Grounded tools must be plugged into an
outlet properly installed and grounded in
accordance with all codes and ordinances. Never remove the grounding
prong or modify the plug in any way. Do
not use any adaptor plugs. Check with a
qualified electrician if you are in doubt as
to whether the outlet is properly
grounded.
function or break down, grounding provides a
low resistance path to carry electricity away
from the user.
If the tools should electrically mal-
2
5. Avoid body contact with grounded surfaces such as pipes, radiators, ranges and
refrigerators.
electric shock if your body is grounded.
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.
There is an increased risk of
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.
A moment of inattention while
Loose clothes, jewelry, or long
Carrying tools with
Awrenchora
Proper footing and
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.
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
model.
Accessories that may be suitable for
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
To ol s a re
Properly maintained
Many accidents are
3
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-
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: Use only three-wire extension cords that have threeprong grounding-type plugs and three-pole receptacles that accept the tool's plug. Make
sure your extension cord is in good condition. Replace or repair damaged or worn cord
immediately. 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
GROUNDING INSTRUCTIONS
This tool should be grounded while in use to protect the operator from electric shock. The
tool is equipped with a three-conductor cord and three-prong grounding type plug to fit the
proper grounding type receptacle. The green (or green and yellow) conductor in the cord is
the grounding wire. Never connect the green (or green and yellow) wire to a live terminal.
Your unit is for use on 120 volts and has a plug that looks like Fig. “A”.
4
An adapter Fig. “B” and “C” is available for connecting Fig. “A” type plugs to two-prong
receptacles. The green-colored rigid ear, lug, etc., extending from the adapter must be connected to a permanent ground, such as a properly grounded outlet box.
GROUNDING METHODS
ADAPTER
GROUNDED
OUTLET
METAL
SCREW
TAB FOR
GROUNDING SCREW
GROUNDING
PIN
GROUNDED
OUTLET BOX
Fig. A Fig. B Fig. C
SPECIFIC SAFETY RULES
USB038-5
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. Accessories must be rated for 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. Hold tool 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.
3. Always use safety glasses or goggles.
Ordinary eye or sun glasses are NOT
safety glasses.
4. Use only flanges specified for this tool.
Contact with a “live” wire will
5. NEVER use tool with wood cutting blades
or other sawblades. Such blades when
used on a sander frequently kick and
cause loss of control leading to personal
injury.
6. Hold the tool firmly.
7. Keep hands away from rotating parts.
8. Be careful not to damage the spindle, the
flange (especially the installing surface)
or the lock nut. Damage to these parts
could result in wheel breakage.
9. Make sure the abrasive disc or the wheel
is not contacting the workpiece before the
switch is turned on.
10. Watch out for flying sparks. Hold the tool
so that sparks fly away from you and other
persons or flammable materials.
5
11. Do not leave the tool running. Operate the
tool only when hand-held.
12. Do not touch the workpiece immediately
after operation; it may be extremely hot
and could burn your skin.
13. Ventilate your work area adequately when
you perform sanding operations.
14. ALWAYS wear proper apparel including
long sleeve shirts, leather gloves and
shop aprons to protect skin from contact
with hot grindings.
15. Use of this tool to grind or sand some
products, paints and wood could expose
user to dust containing hazardous substances. Use appropriate respiratory protection.
IF USED AS A GRINDER
16. Always use proper guard with grinding
wheel.
ken wheel fragments.
17. When using depressed center grinding
wheels, be sure to use only fiberglassreinforced wheels.
18. Check the wheel carefully for cracks or
damage before operation. Replace
cracked or damaged wheel immediately.
Run the tool (with guard) at no load for
about a minute, holding tool away from
others. If wheel is flawed, it will likely separate during this test.
19. Before using the tool on an actual workpiece, let it run for a while. Watch for
vibration or wobbling that could indicate
poor installation or a poorly balanced
wheel.
20. Use the specified surface of the wheel to
perform the grinding.
SAVE THESE INSTRUCTIONS
A guard protects operator from bro-
WARNING:
MISUSE or failure to follow the safety rules stated in this
instruction manual may cause serious personal injury.
6
Loading...