Craftsman 900.116500 Instruction Manual

Instruction Manual

CRRF °

4 INCH

ANGLE GRINDER

Model 900.116500

_4WARNING:

Before using this product,
read this manual and follow

all its Safety Rules and
Operating Instructions.

Sears, Roebuck and Co., Hoffman Estates, IL 60179 USA

www.sears.com/craftsman

Form No. 587857-00 MAR-04 Printed in China

• Safety

• Operation

• Maintenance

• Parts List

• Espa_ol

O On / Off Switch (1)

Auxiliary Side Handle (5)

Spindle Lock Button (3)

Depressed Center Wheel (4)

Guard (6)

[,._1 WI-'I ;_1;1-'I_/ Ik'd

FULL ONE YEAR WARRANTY ON CRAFTSMAN ANGLE GRINDER

If this Craftsman angle grinder fails due to a defect in material or workmanship within

one year from the date of purchase, Sears wilt replace it, free of charge.

If this Craftsman angle grinder is used for commercial or rental purposes, this warranty

applies for only 90 days from the date of purchase.
WARRANTY SERVICE

To obtain replacement under this warranty, return the grinder to your nearest Sears
store in the United States.

This warranty applies only while this angle grinder is used in the United States.
This warranty gives you specific legal rights, and you may also have other rights which
vary from state to state.

SEARS, ROEBUCK AND CO., DEPT. 817 WA, HOFFMAN ESTATES, IL 60179

[_ =l_l=l;_Inu _'7.,I==Inuk'dI;_L_"]

A

AI_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

Work Area

Keep your work area clean and well lit.

Cluttered benches and dark areas invite
accidents.

• 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.

• Keep bystanders, children, and visitors
away whine operating a power tool.

Distractions can cause you to lose control.

Electrical Safety

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. Applicable only to
Class It tools.

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.
Don't expose power tools to rain or

wet conditions. Water entering a power
tool will increase the risk of electric shock.

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.

• 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.

Personal Safety

• 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,

• 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 tong hair can be caught in

moving parts.

• 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.

• Remove adjusting keys or wrenches
before turning the tool on. Awrench or

a key that is left attached to a rotating part
of the tool may result in personal injury.

• Do not overreach. Keep proper footing
and balance at all times. Proper footing

and balance enables better control of the
tool in unexpected situations.

• 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

• 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.

• Do not force tool. Use the correct tool
for your application. The correct toot will

do the job better and safer at the rate for

which it is designed.

• Do not use tool if switch does not turn
it on or off. Any toot that cannot be

controlled with the switch is dangerous
and must be repaired.

• 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.

• Store idle tools out of reach of children
and other untrained persons. Tools are

dangerous in the hands of untrained

users.

• 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.

• 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. Many

accidents are caused by poorly

maintained tools.

• 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.

Service

• Tool service must be performed only
by qualified repair personnel. Service

or maintenance performed by unqualified

personnel could result in a risk of injury.

• 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.

SPECIFIC SAFETY RULES

• Always use proper guard with

grinding wheel. A guard protects
operator from broken wheel fragments.

Always position the guard so that as

much of the exposed disc as possible
is pointing away from you.

• 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.

• 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 wilt make

exposed metal parts of the tool "live"
and shock the operator.

ADDITIONAL SAFETY RULES

• Always wear eye protection.

• Keep guards in place.

• Use only accessories having a

maximum operating speed at least as
high as the speed specified in the

warning on the tool's label.

• Before using, inspect recommended
accessory for cracks or flaws. If such
a crack or flaw is evident, discard the
accessory. The accessory should also
be inspected whenever you think the

tool may have been dropped.

• When starting the tool (with a new or
replacement wheel or brush installed)
hold the tool in a well protected area

and let it run for one minute. If the
wheel or brush has an undetected crack

or flaw, itshould burst or separate in
tess than one minute. Never start the

tool with a person in line with the
accessory. This includes the operator.

• In operation, avoid bouncing the
wheel or giving it rough treatment. If
this occurs, stop the tool and inspect

the wheel.

• Always use guards with grinding
wheels and wire brushes. Always

position the guard so that as much of
the exposed wheel or wire brush as
possible ispointing away from you.

• Clean your tool out periodically.

• Do not use Type 1 flat cut-off or diamond
wheels without proper guard.

• Always direct stream of sparks from

grinding away from flamable materials.

• _,WARNING: Some dust created by
power sanding, sawing, grinding, drilling,

and other construction activities contains
chemicals known 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 (CCA).
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 welt
ventilated area, and work with approved

safety equipment, such as those dust
masks that are specially designed to
filter out microscopic particles.

• Avoid prolonged contact with dust
from power sanding, sawing,

grinding, drilling, and other

construction activities. Wear
protective clothing and wash exposed
areas with soap and water. Allowing

dust to get into your mouth, eyes, or lay
on the skin may promote absorption of
harmful chemicals.

• _I,WARNING: Use of this tool can
generate and/or disburse dust, which

may cause serious and permanent
respiratory or other injury. Always
use NIOSH/OSHA approved

respiratory protection appropriate for
the dust exposure. Direct particles
away from face and body.

• -_CAUTION: Wear appropriate
hearing protection during use. Under
some conditions and duration of use,
noise from this product may contribute to

hearing loss.

• The label on your tool may include the

following symbols.

V .............. volts

A .............. amperes

Hz ............ hertz

W ............ watts

min .......... minutes

'_ ............ alternating current

.... ........direct current

no ............ no toad speed

[] ............ Class II Construction

.../min ......revolutions or reciprocation

per minute

............ earthing terminal

............ safety alert symbol

EXTENSION CORDS

When using an extension cord, be sure to
use one heavy enough to carry the current

your product wilt draw. An undersized cord

wilt cause a drop in line voltage resulting in

loss of power and overheating. The

following table 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.

Minimum Gage for Cord Sets

Volts Total Length of Cord in Feet

120V 0-25 26-50 51-100 101-150
240V 0-50 51-100 101-200 201-300

Ampere Rating

More Not more AWG

Than Than

0- 6 18 16 16 14
6- 10 18 16 14 12
10- 12 16 16 14 12
12- 16 14 12 Not Recommended

MOTOR

Be sure your power supply agrees with
nameplate marking. 120 Volts AC only
means your tool wilt operate on standard
60 Hz household power. Do not operate
AC tools on DC. A rating of 120 volts
AC/DC means that your tool wilt operate
on standard 60 Hz AC or DC power. This
information is printed on the nameplate.
Lower voltage will cause toss of power
and can result in over-heating. All
Craftsman tools are factory-tested; if this
toot does not operate, check the power
supply.

AUXILIARY HANDLE (FIG. 1)

An auxiliary handle is furnished with your
grinder and can be screwed into either
side of the grinder housing. This handle

SHOULD BE USED ATALL TIMES to
maintain complete control of the tool.

TIGHTEN SECURELY.

STARTING AND STOPPING THE TOOL

Tostart the tool, slide the ON/OFF switch
forward. For continuous operation, slide

the switch fully forward and press front
end down. To stop the tool, release the
ON/OFF switch. To stop the tool while
running in continuous mode, press the
rearward part of the switch.
NOTE: Do not switch the tool on or off

while under toad conditions. Allow the
grinder to run up to full speed before

touching the surface to be ground. Lift the
toot from the surface before turning the

tool off. _,CAUTION: Allow the tool to
stop before setting down.

OVERLOAD

Overloading wilt cause damage to the
motor of your angle grinder. This can
happen if your angle grinder is subjected
to heavy use for prolonged periods of
time. Do not in any circumstances,
attempt to exert too much pressure on
your angle grinder to speed up your work.
The abrasive accessories operate more
efficiently when light pressure is exerted,
thus avoiding a drop in the speed of your
angle grinder.

An'ACHING THE WHEEL GUARD (FIG. 2)

Turn off and unplug the tool. NEVER
GRIND OR BRUSH WITHOUT GUARD

IN PLACE.

• Place the angle grinder on a table,

spindle (1) facing up.

• Place the spring washer (2) over the

spindle and locate it on the shoulder (3).

• Place the guard onto the tool as shown.

• Place the flange (4) over the spindle with

the protrusions facing towards the guard.
Make sure that the screws (5) are tight
and that the guard (6) can be rotated.

FITTING DEPRESSED CENTER WHEELS

(FIGS. 3,4,5,6)

Turn off and unplug the tool.

-ZkCAUTION: Never use any grinding
wheels without the proper guard.

1.)Ensure that the guard is fitted properly.
Place the inner flange (1) on the spindle
(2) as shown (Fig. 3). Ensure that it is

located on the two flats.

o

2.)Place the grinding wheel (1) on the
spindle (2) and innerflange (3) as shown

Fig. 4.

3.)Fit the threaded outer flange (4) making
sure it is facing in the correct direction for
the type of wheel fitted. For thick grinding
wheels Fig. 5, the flange (4) is fitted with
the raised portion facing towards the
wheel. For thin grinding wheels, the
flange (4) is fitted with the raised portion
facing away from the wheel.

0

4.)Press in the spindle lock button and
rotate the spindle until it locks. Keeping
the lock button pressed in, tighten the
outer flange with the spanner wrench
provided as shown in Fig. 6. Hubbed
wheels do not require mounting flanges
and may be tightened with standard

wrenches.

to be grinding wheels and must be used
with guards.

FITTING WIRE BRUSHES

Wire cup brushes screw directly on the
spindle of the machine without the use of
flanges. When using wire brushes, thread
firmly on spindle by hand. The guard may
be removed for brushing with flat wire

brushes.

EDGE GRINDING

Edge grinding may be done with Type 27
depressed center wheels specifically
designed for this purpose. These wheels
are available locally. They must not be

subjected to side pressure._,CAUTION:
Wheels used for edge grinding may break

if they bend or twist while being used for
cut-off work or deep grinding. To reduce
the risk of serious injury, limit the use of
these wheels to shallow cutting and
notching (tess than 1/2" indepth). The
open side of the guard must be positioned
away from the operator.

REMOVING THE WHEEL GUARD

(FIG. 7 FOR SANDING)
Turn off and unplug the tool.

NOTE: To prevent toss of control, do not
set tool down until accessory has
completely stopped turning.

As shown in Fig. 7, place the grinder on a
table, spindle up. Use a screwdriver to
remove the 3 screws (1). Remove the
flange (2), guard (3) and spring washer
(4). Store these parts carefully.

5.)When using a depressed-center wheel,
hold the tool so that an angle of
approximately 30°exists between the

wheel and the work.

AWARNING: Check rated speed on

depressed-center wheel. Never use a
wheel with rated speed lower than the

speed on the nameplate of the tool.
Note: Sanding flap discs are considered

4