Toolshop 4-1/2 IN. ANGLE GRINDER User manual

241-9963
SAVE THIS MANUAL
You will need this manual for safety instructions, operating procedures and warranty.
Put it and the original sales receipt in a safe dry place for future reference.
4-1/2 IN. ANGLE GRINDER
Operator’s Manual

2
IMPORTANT SAFETY INSTRUCTIONS
WARNING: When using electric tools, machines or equipment, basic safety
precautions should always be followed to reduce the risk of fire, electric
shock, and personal injury.
!
READ ALL INSTRUCTIONS BEFORE USING THIS TOOL
1. WARNING
Read and understand all instructions. Failure to follow all instructions listed
below may result in electric shock , fire and/or serious personal injury.
2. WORK AREA
a. Keep your work area clean and well lit. Cluttered benches and dark
areas invite accidents.
b. 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.
c. Keep bystanders, children and visitors away while operating a power
tool. Distractions can cause you to lose control.
3. ELECTRICAL SAFETY
a. 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 electrician to install a polarized outlet.
Do not change the plug in any way. Double insulation eliminates the need
for the three wire grounded power cord and grounded power supply system.
b. Avoid body contact with grounded surfaces, such as pipes, radiators,
ranges and refrigerators. There is an increased risk of electric shock if
your body is grounded.
c. Do not expose power tools to rain or wet conditions. Water entering a
power tool will increase the risk of electric shock.
d. 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.
e. 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.
4. PERSONAL SAFETY
a. Stay alert, watch what you are doing and use common sense when
operating a power tool. Do not use tools 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.
b. Dress properly. Do not wear loose clothing 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.
c. 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.
d. Remove adjusting keys or switches before turning the tools on. A
wrench or a key that is left attached to a rotating part of the tools may result
in personal injury.
e. Do not overreach. Keep proper footing and balance at all times. Proper
footing and balance enables better control of the tools in unexpected
situation.
f. Use safety equipment. Always wear eye protection. Dust mask, on-skid
safety shoes, hard hat or hearing protection must be used for appropriate
conditions.

3
IMPORTANT SAFETY INSTRUCTIONS
Recommended Minimum Wire Gauge for Extension Cords
Amps from Tool Nameplate 25’ length 50’ length 75’ length 100’ length 150’ length 200’ length
0-5 amps 16 ga. 16 ga. 16 ga. 14 ga. 12 ga. 12 ga.
5.1-8 amps 16 ga. 16 ga. 14 ga. 12 ga. 10 ga. Do Not Use
8.1-12 amps 14 ga. 14 ga. 12 ga. 10 ga. Do Not Use Do Not Use
12.1-15 amps 12 ga. 12 ga. 10 ga. 10 ga. Do Not Use Do Not Use
15.1-20 amps 10 ga. 10 ga. 10 ga. Do Not Use Do Not Use Do Not Use
5. TOOL USE AND CARE
a. 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.
b. Do not force tool. Use the correct tools for your application. The correct
tools will do the job better and safer at the rate for which it is designed.
c. Do not use tools if switch does not turn it on or off. Any tool that can not
be controlled with the switch is dangerous and must be repaired.
d. 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 tools accidentally.
e. Store idle tools out of reach of children and other untrained persons.
Tools are dangerous in the hands of untrained users.
f. 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.
g. 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 tools serviced before using. Many accidents are caused by poorly
maintained tools.
h. 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.
6. SERVICE
a. Tool service must be performed only by qualified repair personnel.
Service or maintenance performed by unqualified personnel could result in a
risk of injury.
b. When servicing a tool, use only identical replacement parts. Follow
instructions in the maintenance section of the manual. Use of unauthorized
parts or failure to follow. Maintenance instructions may create a risk of electric
shock or injury.
7. Hold tool by insulated gripping surfaces when performing an operation
where thecutting 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.
8.ENSURE THE EXTENSION CORD YOU USE IS OF SUFFICIENT GAUGE
FOR ITS LENGTH.
9. STAY ALERT.
Watch what you are doing & use common sense. Don’t operate any tool when
are tired.

4
SAFETY PRECAUTIONS FOR ANGLE GRINDER
USE ONLY WITH GUARD IN PLACE. The guard protects you, the operator,
from broken pieces of the wheel should it shatter in use.
ALWAYS CHECK THE SPEED RATING OF ACCESSORIES. This tool will
spin .mpr000,11taseirossecca Accessories not rated for speeds this high may
fly apart and could cause serious injury.
SPECIFICATIONS
(4) 4-1/2" x 1/4" x 7/8" type 27 depressed center metal grinding wheels.
(10) 4-1/2" x 1/16" x 7/8" metal cutting wheels.
(2) 4-1/2" x 1/4" x 7/8" type 27 depressed center masonry grinding wheels.
(4) 4-1/2" x 3/32" x 7/8" masonry cutting wheels.


Angle Grinder
Voltage: 120 volts,60Hz
Current rating: 5.0 Amps
No load speed: 11,000/min
Grinding wheel: 4-1/2 inch (115mm)
Double insulated
■
■
■
■
Spindle thread: 5/8"-11 UNC
■
■
Included:
■
■
■
■
■Wheel removal wrench
Side handle
■
FUNCTIONAL DESCRIPTION
2. Spindle lock
4. Wheel guard
5. Side handle
3. Grinding wheel
1. On/off switch
5
4
1
2
3

5
Grinding and Cut-off Wheels
This angle grinder is designed to accept only 4-1/2” abrasive discs with a 7/8”
bore. Check to ensure that any discs used on this machine are rated for the
11,000 rpm speed of this grinder. Check also for any damage to an abrasive disc
before installing. Any disc that is cracked, has been dropped, or subjected
to other damage due to temperature extremes or solvents should be discarded. A
damaged disc can fly apart in use and may cause serious injury to the operator or
bystanders.
Guard
This grinder comes with an adjustable wheel guard installed. This is to allow you to
grind at various angles and still be protected to some extent from flying residue or
debris should a disc shatter in use. Unplug the grinder. Loosen the clamping screw
on the collar and rotate the guard to give you protection and expose the disc on the
appropriate side. Tighten the screw to clamp the guard in place. Do not use this
tool with the guard removed.
Side Handle
The auxiliary side handle for the grinder may be mounted on either the left or right
side of the tool. Unplug the grinder. Screw the handle firmly into the threaded hole
on either side of the metal grinding head.
Installing a grinding wheel or cutting disc
Running the TOOL
OPERATING PROCEDURES
Warning: Turn off your tool at once, unplug and inspect it for serious problems if:
Moving parts get stuck
Speed drops to an abnormally low level
The motor housing gets hot
Sparks or odors emit from the casing
■
Unplug the grinder.
Turn the tool upside down.
Place the inner flange on the spindle so that it matches with the flats on the shaft.
Fit the disc over the ring on the inner flange.
Screw the wheel-retaining nut down over the disc.
Depending on the disc thickness, the ring on the outer flange nut can face down
or up.
Fit the two prongs of the wrench into the holes in the outer flange nut.
Depress the spindle lock button and firmly tighten the nut with the wrench.
Turn the wheel by hand, checking for any obstruction.
■
■
■
■
■
■
■
■
■
Plug in the tool.
Hold the tool firmly with one hand on the side handle and the other gripping
the housing.
Check to make sure the abrasive disc is not obstructed.
Slide the switch on the left side of the machine forward with your thumb.
Switching the tool on or off under load will damage the switch.
To turn the tool off, slide the switch back.
■
■
■
■
■
■
■
■
■

MAINTENANCE
Check the brushes occasionally (after about 60 hours of use) and replace if
worn. Unplug the tool. Unscrew the round brush covers on each side of the
body and pull the brushes out to check or replace them. If you replace the
brushes, run the tool without load for 15 minutes to seat the brushes properly.
Keep the vents clear of dust and debris. This will help prevent possible electri-
cal shorts and ensure proper cooling.
Keep the tool housing and handle clean and free of oil and grease by using mild
soap and a damp (not wet) cloth.
Avoid overloading your grinder. It will become hot and lose efficiency. Run-
ning it free of load for a minute or two will allow it to cool itself to normal tem-
perature.
Inspect the cord regularly and have it replaced by an authorized repair facility if
it is damaged.
Lubrication for this tool is done at the factory and should not be necessary
again under normal use.
Check the grinding disc regularly for cracking and other damage. Do not use a
damaged disc.
An authorized repair center should do any repair, modification, or maintenance-
that involve disassembling the grinder.
Any damage to the tool should be corrected at an authorized repair center.









PARTS LIST
6

7
SCHEMATIC DRAWING
!
WARNING: Repairs should be made by an authorized repair center. Do not open or
disassemble this power tool.

L