Skil 3380-01 User Manual

IMPORTANT: IMPORTANT : IMPORTANTE:

Read Before Using Lire avant usage Leer antes de usar

Operating/Safety Instructions Consignes d’utilisation/de sécurité Instrucciones de funcionamiento y seguridad

3380-01

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General Safety Rules

WARNING

“READ ALL INSTRUCTIONS” Failure to follow the safety rules listed below and other basic safety precautions may result in serious personal injury.

Work Area

KEEP CHILDREN AWAY

Do not let visitors contact tool or extension cord. All visitors should be kept safe distance from work area.

KEEP WORK AREAS CLEAN

Cluttered areas and benches invite accidents.

MAKE WORKSHOP KID-PROOF

With padlocks, master switches, or by removing starter keys.

AVOID DANGEROUS ENVIRONMENTS

Don’t use power tools in damp or wet locations. Keep work area well lit. Do not expose power tools to rain. Do not use the tool in the presence of flammable liquids or gases.

Personal Safety

KNOW YOUR POWER TOOL

Read and understand the owner’s manual and labels affixed to the tool. Learn its application and limitations as well as the specific potential hazards peculiar to this tool.

DON’T OVERREACH

Keep proper footing and balance at all times.

STAY ALERT

Watch what you are doing. Use common sense. Do not operate tool when you are tired. Do not operate while under medication or while using alcohol or other drugs.

WEAR PROPER APPAREL

Do not wear lose clothing, gloves, neckties, rings, bracelets, or other jewelry which may get caught in moving parts. Nonslip footwear is recommended. Wear protective hair covering to contain long hair.

ALWAYS USE SAFETY GLASSES

Also use face or dust mask if cutting operation is dusty, and ear plugs during extended periods of operation. Everyday eyeglasses have only impact resistant lenses, they are NOT safety glasses.

GUARD AGAINST ELECTRIC SHOCK

Prevent body contact with grounded surfaces. For example: pipes, radiators, ranges, refrigerator enclosures.

DISCONNECT TOOLS FROM POWER SOURCE

When not in use, before servicing, when changing blades, bits, cutters, etc.

KEEP GUARDS IN PLACE

In working order, and in proper adjustment and alignment.

REMOVE ADJUSTING KEYS AND WRENCHES

When not in use, before servicing, when changing blades, bits, cutters, etc.

REDUCE THE RISK OF UNINTENTIONAL STARTING

Make sure the switch is in the “OFF” position before plugging in tool.

GROUND ALL TOOLS

This tool is equipped with an approved 3-conductor cord and a 3 prong grounding type plug to fit the proper grounding type receptacle. The green conductor in the cord is the grounding wire. Never connect the green wire to a live terminal.

NEVER STAND ON TOOL OR ITS STAND

Serious injury could occur if the tool is tipped or if the cutting tool is accidentally contacted. Do not store materials on or near the tool such that it is necessary to stand on the tool or its stand to reach them.

CHECK DAMAGED PARTS

Before further use of the tool, a guard or other part that is damaged should be carefully checked to ensure that it will operate properly and perform its intended function. Check for alignment of moving parts, mounting, and any other conditions that may affect its operation. A guard or other part that is damaged should be properly replaced.

WARNING

repairmen. Contact the nearest Skil Factory Service Center, Authorized Service Station or other competent repair service.

WARNING

may create a hazard

All repairs, electrical or mechanical, should be attempted only by trained

Use only Skil replacement parts; any others may create a hazard.

The use of any other accessories not specified in the current Skil catalog,

“SAVE THESE INSTRUCTIONS”

Additional Safety Rules

Tool Use

ON’T FORCE TOOL

It will do the job better and safer at the rate for which it was designed.

USE THE RIGHT TOOL

Don’t force a small tool or attachment to do the job of a heavy duty tool. Don’t used tool for purpose not intended—for example, don’t use a circular saw for cutting tree limbs or logs.

SECURE WORK

Use clamps or a vise to hold work. It’s safer than using your hand and it frees both hands to operate the tool.

NEVER LEAVE TOOL RUNNING UNATTENDED

Turn power off. Don’t leave tool until it comes to a complete stop.

Tool Care

DO NOT ALTER OR MISUSE TOOL

These tools are precision built. Any alteration or modification not specified is misuse and may result in dangerous conditions.

AVOID GASEOUS AREAS

Do not operate electric tools in a gaseous or explosive atmosphere. Motors in these tools normally spark, and may result in a dangerous condition.

MAINTAIN TOOLS WITH CARE

Keep tools sharp and clean for best and safest performance. Follow instructions for lubricating and changing accessories. Inspect tool cords periodically and if damaged, have repaired by authorized service facility. Inspect extension cords periodically and replace if damaged. Keep handles dry, clean and free from oil and grease.

or your own safety, do not operate your

ARNING

and installed according to the instructions … and until you have read and understood the following:

1. Safety Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–4

2. Motor Specifications . . . . . . . . . . . . . . . . . . . . . . 5

3. Getting To Know Your Grinder . . . . . . . . . . . . . 8

4. Assembly and Adjustments . . . . . . . . . . . . 9–11

5. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–13

7. Maintaining Your Grinder . . . . . . . . . . . . . . . . . 14

STABILITY OF THE BENCH GRINDER

If there is any tendency of the bench grinder to tilt or move during any use, bolt it to the bench top or to a piece of 3/4" exterior plywood large enough to stabilize the grinder. Bolt the plywood to the underside of the base so it extends beyond the sides of the base. DO NOT USE PRESSED WOODS PANELS. They can break unexpectedly. If the workpiece is too large to easily support with one hand, provide an auxiliary support.

WARNING

children may be present.

9. LOCATION

Use the grinder in a well lit area and on a level surface, clean and smooth enough to reduce the risk of trips and falls. Use it where neither the operator nor the casual observer is forced to stand in line with a potential kickback.

PROTECTION:

10.

WARNING

DO NOT WEAR: Loose fitting gloves

F grinder until it is completely assembled

Risk of injury due to accidental starting. Do not use in an area where

Eyes, hands, ears and body.

TO AVOID BEING PULLED INTO THE SPINNING TOOL—

Necktie Loose clothing Jewelry

WARNING

voltage supplied is the same as that specified on the nameplate of the tool. A power source with a voltage greater than that specified for the tool can result in serious injury to the user, as well as damage to the tool. If in doubt, DO NOT PLUG IN THE TOOL. Using a power source with a voltage less than the nameplate rating is harmful to the motor

Before connecting the tool to a power source (receptacle, outlet, etc.), be sure

DO: TIE BACK LONG HAIR

ROLL LONG SLEEVES ABOVE ELBOWS

a. If any part of your grinder is missing, malfunctioning,

has been damaged or broken … such as the motor switch, or other operating control, a safety device or the power cord … cease operating immediately until the particular part is properly repaired or replaced.

b. If you are not completely familiar with operating a grinder, consult your instructor, supervisor or other qualified individual.

Additional Safety Rules

c. Only use grinding wheels with a bore exactly equal

o that of the grinder arbor (shaft). Your tool is

t equipped with a 1/2" arbor. Never machine an undersize wheel to fit an arbor.

d. Examine grinding wheels for cracks or other damage before using grinder. Replace cracked, damaged or vibrating wheels immediately.

e. Insure that wheel flanges and blotters (paper discs on each side of the grinding wheel) are used to mount grinding wheels to the grinder shaft. Use only wheel flanges furnished with grinder. Use of other flanges may cause damage or breakage to the grinding wheel and result in injury to the operator.

f. Never operate grinder near flammable fumes or liquids. Sparks from grinding wheel or motor could ignite flammable material.

g. Do not overtighten wheel nuts. h. Always use all guards and eyeshields, making sure

they are properly adjusted and secured. Keep spark guards close to the wheel and readjust inward as the wheel wears. Always use wheel guards and covers when using a wire brush, buffing wheel or standard grinding wheel.

i. Always use grinding wheels that are rated for safe use on this grinder. Never use a wheel rated lower than 3500 R.P.M.

j. Always stop grinder before making any adjustments.

k. Do not move grinder until it comes to a full stop. l. Do not force work against the grinding wheel.

Excessive pressure may damage or break the wheel, resulting in injury to operator or bystander.

m. When turning ON the power, stand to the side of the wheel and allow the grinder to come up to speed and operate for one full minute before applying work to the wheel.

n. Never grind on the side of the wheel. Always grind on the face of the wheel only.

o. Dress the face of the wheel only. Dressing the side of the wheel may make it too thin for safe use.

p. Never apply coolant directly to the grinding wheel. Coolant may deteriorate the bonding strength of the wheel and cause it to fail.

q. Grinding creates HEAT. Never touch the workpiece until you are sure it has cooled sufficiently.

11. NOTE AND FOLLOW THE SAFETY WARNINGS AND INSTRUCTIONS THAT APPEAR ON THE GRINDER:

12. THINK SAFETY

SAFETY IS A COMBINATION OF OPERATOR COMMON SENSE AND ALERTNESS AT ALL TIMES WHEN THE GRINDER IS BEING USED.

Do not allow familiarity (gained from frequent use of your grinder) to become commonplace. Always remember that a careless fraction of a second is sufficient to inflict severe injury.

The operation of any power tool can result in foreign objects being thrown into the eyes, which can result in severe eye damage. Always wear safety goggles that comply with ANSI Z87.1 (shown

on Package) before commencing power tool operation.

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.

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.

Motor Specifications and Electrical Requirements

General Specifications

Voltage Rating . . . . . . . . . . . . . . . . . . .120 V, 60 Hz

Amperage Rating . . . . . . . . . . . . . . . . . . . . . . .2.1 A

No Load Speed . . . . . . . . . . . . . . . . . .N

3,450/min

Motor Specifications

In the event of a malfunction or breakdown, grounding provides a path of least resistance for electric current to reduce the risk of electric shock. This tool is equipped with an electric cord having an equipment-grounding conductor and a grounding plug. The plug must be plugged into a matching outlet that is properly installed and grounded in accordance with all local codes and ordinances.

This grinder is designed to use a 3450 RPM motor. It is wired for operation on 110-120 volts, 60 Hz. alternating current. Before connecting the motor cord to power source, make certain the switch is in the “OFF” position and be sure the electric current is of the same characteristics as stamped on the grinder nameplate.

Connection To A Power Source

This machine must be grounded while in use to protect the operator from electric shock.

Plug power cord into a 110-120V properly grounded type outlet protected by a 15-amp dual element time delay fuse or circuit breaker.

Not all outlets are properly grounded. If you are not sure that your outlet, as pictured in Fig. 1, is properly grounded; have it checked by a qualified electrician.

DANGER

or removing the plug to or from the outlet.

DANGER

shock, particularly when used near metal plumbing or other metal objects. If shocked, your reaction could cause your hands to hit the tool.,

WARNING

avoid shock or fire hazard.

To avoid electric shock, do not touch the metal prongs on the plug when installing

Failure to properly ground this power tool can cause electrocution or serious

If power cord is worn, cut or damaged in any way, have it replaced immediately to

Your unit is for use on 120 volts; it has a plug that looks like the one in Figure 1.

FIG. 1

This power tool is equipped with a 3-conductor cord and grounding type plug, approved by Underwriters Laboratories and the Canadian Standards Association. The ground conductor has a green jacket and is attached to the tool housing at one end and to the ground prong in the attachment plug at the other end.

If the outlet you are planning to use for this power tool is of the two-prong type, DO NOT REMOVE OR ALTER THE GROUNDING PRONG IN ANY MANNER. Have a qualified electrician replace the TWO-prong outlet with a properly grounded THREE-prong outlet.

Improper connection of the equipment-grounding conductor can result in a risk of electric shock. The conductor with insulation having an outer surface that is green with or without yellow stripes is the equipmentconductor. If repair or replacement of the electric cord or plug is necessary, do not connect the equipmentgrounding conductor to a live terminal.

Check with a qualified electrician or service personnel if the grounding instructions are not completely understood, or if in doubt as to whether the tool is properly grounded.

Always use proper extension cord. The use of any extension cord will cause some loss of power. To keep this to a minimum and to prevent overheating and motor burn-out, use the table below to determine the minimum wire size (A.W.G.) extension cord. Use only 3-wire extension cords which have 3-prong grounding type plugs and 3-pole receptacles which accept the tool’s plug. Make sure your extension cord is in good condition.

Extension Cord Length Wire Size A.W.G.

0-25 feet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

26-50 feet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

51-100 feet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

“SAVE THESE INSTRUCTIONS”

Table of Contents

General Safety Rules................................................2

Additional Safety Rules..........................................3-4

otor Specifications and Electrical Requirements....5

Table of Contents......................................................6

Unpacking and Checking Contents ..........................7

Getting to Know Your Grinder ..................................8

Assembly and Adjustments ................................9-11

asic Grinder Operation....................................12-13

Maintaining Your Grinder........................................14

Unpacking and Checking Contents

ARNING

ntil all assembly steps are complete and until

ou have read and understood the entire owner’s

y manual.

Model 3380 Bench Grinder is shipped complete in one box.

Unpacking and Checking Contents. Separate all parts from packing materials and check each one with the “Table of Loose Parts” to make sure all items are accounted for before discarding any packing material.

WARNING

in power cord or turn the switch on until the missing parts are obtained and are installed correctly.

To reduce the risk of injury, never connect plug to power source outlet

If any parts are missing, do not attempt to assemble the grinder, plug

Table of Loose Parts

ITEM DESCRIPTION QTY.

A Grinder Assembly 1 B Eye Shield 2

Loose Parts in Bag 1

C Spark Deflector Bracket 2

Locking Knob 4 Flat Washer 4 Locking washer 4

Loose Parts in Bag 2

D Tool Rest (LH & RH) 2

Locking Knob 2 Flat Washer Locking washer 2 Bolt 2

Getting To Know Your Bench Grinder

1. On/off switch

2. Tool rest

3. Tool rest locking knob

4. Eye shield

5. Eye shield locking knob

6. Spark deflector

7. LED work light

8. Wheel guard

9. Grinding wheel

10. Grinding wheel locking nut

11. Outer grinding wheel flange

12. Base

13. Mounting holes

Assembly and adjustments

ARNING

ntil all assembly steps are completed.

To reduce the risk of injury, never

onnect plug to power source outlet

Fitting and adjusting the spark

deflectors and eye shields

IMPORTANT: Prior to fitting the eye shields and spark deflectors, ensure the grinder is turned off and the power plug is removed from the socket.

Note: Always check to ensure the eye shields are correctly fitted and the eye shield spark deflectors are correctly adjusted each time the grinder is used. Eye shields and spark deflectors must be fitted over each grinding wheel.

1.Remove the bolt guard shown in figure 2.

2.Position the spark deflector (5) to the top of the wheel guard as shown in figure 2.

3.Reinsert the bolt (1) through the spark deflector and wheel guard, followed by the washer (2), lock washer (3), and nut (4).

4.Tighten to secure the spark deflector onto the wheel guard.

5.Hold the eye shield (6) upside down and insert the light assembly (7), by siding it into position between the shield and the shield’s support bracket (8), as shown in figure 3.

(1,2,3,4) from the top of the wheel

FIG. 2

FIG. 3

6.Position the eye shield on the spark deflector bracket as shown in figure 4.

7.Place a lock washer (9) and a flat washer (10) to each eye shield locking knobs (11), then insert through the spark deflector bracket and thread into the eye shield, tighten the knob in a clockwise direction to secure the eye shield onto the spark deflector bracket.

8.Rotate the wheel by hand one full revolution to ensure the wheel can rotate without contacting the spark deflector bracket. Firmly tighten the knob retaining the bracket.

9.Repeat for the opposite side.

FIG. 4

Assembly and adjustments

Fitting the tool rests

The tool rests are required for each high speed grinding wheel to assist in the grinding operation.

o reduce the risk of injury, never

WARNING

tool rest has not been fitted or where the tool rest has not been correctly adjusted.

Note. The tool rests are right and left handed. Follow the diagrams to ensure the correct tool rest is fitted to the correct side.

IMPORTANT. Prior to fitting the tool rests, ensure the grinder is turned off and the power plug is removed from the socket.

3. Hold the tool rest

the tool rest bracket (2).

4.Insert bolt

rest, followed by a washer (4), lock washer (5), and locking knob (6).

5. Tighten the locking knob sufficiently to support the

tool rest but still allowing the tool rest to slide inwards and outwards.

6. Slide the tool rest to within a maximum of 1.5mm

from the wheel. Rotate the wheel one full revolution by hand to ensure the wheel does not contact the tool rest.

7. Tighten the locking knob firmly to retain the

assembly.

8. Repeat the assembly operation for the second tool

rest.

T use a bench grinder on which the

(1) in the correct position against

(3) through tool rest bracket and tool

FIG. 5

10.

Assembly and adjustments

Mounting Bench Grinder to Workbench

If bench grinder is to be used in a permanent location, it should be fastened securely to a firm supporting

urface such as a stand or workbench using the two

s mounting holes (1), one of which is shown in figure 6.

When mounting grinder to a workbench, holes should be drilled through the supporting surface of the workbench using the dimensions illustrated (Fig. 6).

1.Each of the two mounting holes should be bolted securely using 5/16" hex nuts (not included). Screw lengths should be 1-1/2" longer than the thickness of the bench top.

2.Locate and mark where the grinder is to be mounted.

3.Drill two (2) 7/16" diameter holes through workbench.

4.Place bench grinder on workbench aligning holes in base with holes drilled in workbench.

5.Insert two (2) 5/16" screws and tighten.

Mounting to Plywood

FIG. 6

7/16”

An alternative method of securing your bench grinder is to fasten the grinder base to a mounting board 12" x 18" minimum size to prevent grinder from tipping while in use. Any good grade of plywood with a 3/4" minimum thickness is recommended (Fig. 7).

1.Follow instructions for mounting to workbench, substituting a plywood board 12" x 18" minimum size and using 5/16" flat head screws, lockwashers and hex nuts (not included). Screw length must be at least 1-1/2" more than the thickness of the mounting board.

NOTE: For proper stability, holes must be countersunk so screw heads are flush with the bottom surface of the supporting board.

Securely clamp board to workbench using two or

2. more “C” clamps (Fig. 7).

Supporting surface where grinder is to be mounted should be examined carefully after mounting to insure that no movement can occur during use. If any tipping or walking is noted, secure the workbench or stand before operating the bench grinder.

FIG. 7

11.

Operation

ARNING

children may be present.

IMPORTANT: Prior to using the grinder, check that the eye shields, spark deflectors, and tool rests are fitted and correctly adjusted and that you are wearing safety gear including eye, hearing and breathing protection.

1. Turn the wheel by hand to make sure it does not

touch the guard, eye shields, spark deflectors or tool rests and runs freely.

2. Stand to one side, turn the switch on and allow the

motor to reach full speed. To start grinder: push the right hand side of the

switch. To turn the grinder off, push the left hand side of the switch. The “ON” and “OFF” positions are stamped on the switch plate (Fig. 8). If the grinder does not immediately start, switch the grinder “OFF”, disconnect the power cord and check voltage at power source.

WARNING

shields or other components should be made while the grinder wheels are turning.

3. Support the workpiece on the tool rest and

gradually feed the workpiece onto the wheel. Use pliers to hold small workpieces.

Note. Traverse the workpiece across the full width of the wheel to prolong its flat surface.

4. If the grinding operation causes the motor speed to

noticeably decrease, pull back the workpiece, allow the motor to regain full speed and restart the grinding operation, but apply less force.

WARNING

not the sides. Note that the workpiece can get very warm. It may be necessary to cool a workpiece by dipping it in a coolant or in water. Do not apply coolant or water to the grinding wheel.

Risk of injury due to accidental starting. Do not use in an area where

To reduce the risk of injury, no adjustments to tool rests, spark

To reduce the risk of injury, only use the front face of the grinding wheel,

LED Light

Your tool is equipped with LED lights for better visibility in the work area during operation. When the tool is turned on, the light will turn on automatically and stays on until the tool is turned off.

How to true and dress the wheels

FIG. 8

1.Dressing a wheel involves the use of a wheel dresser which is not supplied with the grinder. Follow the manufacturers instructions of the wheel dresser.

2.Adjust the tool rest to allow the front part of the wheel dresser to fit between the tool rest and wheel.

3. Start the motor and move the dresser across the front of the wheel a sufficient number of times until the surface is level. It is not necessary to apply excessive force in an attempt to dress the wheel in one pass of the wheel dresser.

4. Adjust the tool rest so that it is no more than 1.5mm from the wheel.

5. Adjust the spark deflector to ensure the gap between the deflector and wheel is less than 6mm.

Grinder adjustments

During the life of the grinder some adjustments are required to maintain a safe working environment.

Please ensure the following:

• Always adjust the eye shields to the most

comfortable and most effective angle to suit the task being performed.

• As the wheels wear, the spark deflector must be

adjusted to ensure the gap between the spark deflector and wheel does not exceed 6mm.

• As the wheels wear the tool rests must also be

adjusted so there in never a gap of greater than

1.5mm between the wheel and the edge of the tool

rest.

Dressing a wheel cleans and levels the front surface to increase efficiency of operation and prevent vibration.

12.

Operation

aaa

Changing a grinding wheel

IMPORTANT: Prior to changing a wheel, ensure the grinder is turned off and the power plug is removed from the socket. Make sure that the replacement wheel is rated at 3500 RPM or higher.

1.Loosen and remove the 3 bolts

guard (2), as shown in figure 9.

2.Remove the wheel guard.

3.To prevent wheel rotation, place a wood wedge between the grinding wheel and the tool rest (Figure

10).

4.Remove the locking nut correct direction of rotation), outer flange the wheel

Note: The wheel on the left-hand side of the bench grinder has a left-hand thread and is unscrewed in a clockwise direction. The wheel on the right-hand side of the bench grinder has a right-hand thread and is unscrewed in an anti-clockwise direction.

5.Fit the replacement wheel on the shaft ensuring that there is a blotter between the wheel and the flanges on each side of the wheel. Ensure the wheel is a slide fit (not loose) on the spindle (Figure 11).

6.Replace the grinding wheel nut (4) and tighten. (See the note above regarding the direction of rotation of the nut).

7.Replace the wheel guard.

8.Reinsert the 3 bolts (1), washers, lock washers, nuts, and tighten wheel guard in place.

9.Re-adjust the tool rest, spark deflector and eye shield.

10. Rotate the wheel by hand to check for free

movement and proper adjustments.

11. Plug in the bench grinder, put on eye protection,

stand to one side and run the grinder at full speed for several minutes.

(6).

(4) (see note below for

(1) on the wheel

(3)

(5) and

(6) and outer flange (5)

FIG. 9

FIG. 10

FIG. 11

13.

Maintaining Your Bench Grinder

Maintenance

WARNING

lug from the power source outlet before

p maintaining or lubricating your grinder.

Frequently blow out any dust that may accumulate inside the motor.

An occasional coat of paste wax on the work table will allow the wood being cut to glide smoothly across the work surface.

To reduce the risk of injury, turn power switch “OFF” and remove

GENERAL

CAUTION

Including: gasoline, carbon tetrachloride, chlorinated cleaning solvents, ammonia and household detergents that contain ammonia. Avoiding use of these and other types of cleaning agents minimizes the probability of damage.

WARNING

in any way, have it replaced immediately.

WARNING

repairmen.

Center, Authorized Skil Service Station or other competent repair service. Use only Skil replacement parts; any other may create a hazard.

Certain cleaning agents and solvents damage plastic parts.

To avoid shock or fire hazard, if the power cord is worn, cut or damaged

All repairs, electrical or mechanical, should be attempted only by trained

Contact the nearest Skil Factory Service

Lubrication

All of the BALL BEARINGS are packed with grease at the factory. They require no further lubrication.

Accessories

Use only recommended accessories. Follow instructions that accompany accessories. Use of improper accessories may cause hazards.

14.

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