Skil 7290 Instruction Manual

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IMPORTANT:	IMPORTANT :	IMPORTANTE:
Read Before Using	Lire avant usage	Leer antes de usar

Operating/Safety Instructions

Consignes de fonctionnement/sécurité

Instrucciones de funcionamiento y seguridad

7290

Consumer Information

Renseignement des consommateurs

Información para el consumidor

Toll Free Number:	Appel gratuit :	Número de teléfono gratuito:
1-877-SKIL999 (1-877-754-5999) http://www.skil.com
For English	Parlez-vous français?	¿Habla español?
See page 2	Voir page 10	Ver página 18

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Power Tool Safety Rules

	! 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 by-standers, children, and visitors away while 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. Before plugging in the tool, be certain the outlet voltage supplied is within the voltage marked on the nameplate. Do not use “AC only” rated tools with a DC power supply.

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. If operating the power tool in damp locations is unavoidable, a Ground Fault Circuit Interrupter must be used to supply the power to your tool. Electrician’s rubber gloves and footwear will further enhance your personal safety.

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. Refer to “Recommended sizes of Extension Cords” in the Accessory section of this manual.

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 long hair can be caught in moving parts. Keep handles dry, clean and free from oil and grease.

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”. A wrench 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 tool will do the

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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 tool 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. Any alteration or modification is a misuse and may result in a dangerous condition.

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. Develop a periodic maintenance schedule for your tool.

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. For example: internal wires may be misplaced or pinched, safety guard return springs may be improperly mounted.

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. Certain cleaning agents such as gasoline, carbon tetrachloride, ammonia, etc. may damage plastic parts.

Safety Rules for Orbital Sanders

Unplug the sander before changing accessories. Accidental start-ups may occur if sander is plugged in while changing an accessory.

Your tool is equipped with a dust canister, empty it frequently, after completion of sanding and before storing the sander. Be extremely careful of dust disposal, materials in fine particle form may be explosive. Do not throw sanding dust on an open fire. Combustion from mixture of varnishes, lacquers, polyurethane, oil or water with dust particles can occur if there is a static discharge, spark introduced in the box, or excessive heat.

Always wear eye and respiratory protection for dusty applications and when sanding overhead. Sanding particles can be absorbed by your eyes and inhaled easily and may cause health complications.

Use special precautions when sanding chemically pressure treated lumber, paint that may be lead based, or any other materials that may contain carcinogens.

A suitable breathing respirator and protective clothing must be worn by all persons entering the work area. Work area should be sealed by plastic sheeting and persons not protected should be kept out until work area is thoroughly cleaned.

Do not wet sand with this sander. Liquids entering the motor housing is an electrical shock hazard.

Do not use sandpaper intended for larger sanding pads. Larger sandpaper will extend beyond the sanding pad causing snagging, tearing of the paper or kick-back. Extra paper extending beyond the sanding pad can also cause serious lacerations.

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! WARNING

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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

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•Arsenic and chromium from chemicallytreated 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.

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Symbols

IMPORTANT: Some of the following symbols may be used on your tool. Please study them and learn their meaning. Proper interpretation of these symbols will allow you to operate the tool better and safer.

Symbol

Name

Designation/Explanation

V

Volts

Voltage (potential)

A

Amperes

Current

Hz

Hertz

Frequency (cycles per second)

W

Watt

Power

kg

Kilograms

Weight

min

Minutes

Time

s

Seconds

Time

Diameter

Size of drill bits, grinding wheels, etc.

n0

No load speed

Rotational speed, at no load

.../min

Revolutions or reciprocation per minute

Revolutions, strokes, surface speed,

orbits etc. per minute

0

Off position

Zero speed, zero torque...

1, 2, 3, ...

Selector settings

Speed, torque or position settings.

I, II, III,

Higher number means greater speed

0

Infinitely variable selector with off

Speed is increasing from 0 setting

Arrow

Action in the direction of arrow

Alternating current

Type or a characteristic of current

Direct current

Type or a characteristic of current

Alternating or direct current

Type or a characteristic of current

Class II construction

Designates Double Insulated

Construction tools.

Earthing terminal

Grounding terminal

Warning symbol

Alerts user to warning messages

Ni-Cad RBRC seal

Designates Ni-Cad battery recycling

program

This symbol designates

This symbol designates

that this tool is listed to

that this tool is listed by

Canadian Standards by

Underwriters Laboratories.

Underwriters Laboratories.

This symbol

This symbol designates

This symbol designates

designates

that this tool is listed by

that

that this tool is listed by

Underwriters Laboratories,

this tool

the Canadian Standards

and listed to Canadian

complies

Association.

Standards by Underwriters

to NOM

Laboratories.

Mexican

Standards.

This symbol designates that this tool is listed by

Intertek Testing Services.

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! WARNING

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Functional Description and Specifications

Disconnect the plug from the power source before making any assembly, adjustments or changing accessories. Such preventive safety

measures reduce the risk of starting the tool accidentally.

Orbital Sander

SWITCH

FIG. 1

PAD

CLAMPER

GRIP

TAB

FIG. 2

CORD	DUST
	CANISTER
	LID

DUST

PORT

	RELEASE
VENTILATION	TABS
OPENINGS
CLAMP LEVER	DUST
	CANISTER

PUNCH PLATE

Model number	7290
Voltage rating	120 V		60Hz
Pad size	4	5/16" x 4"
Abrasive sheet size	5	1/2" x 4 1/2"

NOTE: For tool specifications refer to the nameplate on your tool.

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! WARNING

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Assembly

! WARNING Always disconnect the plug from the power source before

attaching or removing abrasive sheets.

ATTACHING ABRASIVE SHEET

1. To open clamper grip, push down clamp lever so it is positioned as shown in (Fig. 3).

FIG. 3

			CLAMP LEVER
	ABRASIVE	CLAMPER	PAD
	SHEET	GRIP

2.Place the abrasive sheet (grit side up) between the clamper grip and base plate while aligning edges of the abrasive sheet with either edge of the pad. (Pre-bending the sheet makes attachment easier.)

3.After inserting the sheet, release pressure on clamp lever making sure the clamper grips are secure.

4.Wrap the sheet around the length of the pad and attach free end of sheet under opposite clamp and repeat procedures 1, 2, & 3 above. The abrasive sheet must be drawn as tight as possible for efficient sanding, as a loose sheet can slip on the work surface.

PUNCH PLATE

After the paper has been installed, it will be necessary to punch holes into the paper with the use of the punch plate provided with your sander. Align sander base with punch plate and push down on sander until punch plate pierces the paper. Then remove punch plate from sander (Fig. 1).

Operating Instructions

ROCKER “ON/OFF” SWITCH

TO TURN THE TOOL “ON” or “OFF”: Push IN the switch rocker to the left or right side of the tool.

Always hold the sander off the work when turning the switch “ON” or “OFF”. Contact the work with the tool after sander has reached its full speed and remove it from the work before turning the switch “OFF”. Operating in this manner will prolong switch and motor life and will greatly increase the quality of your work.

SKIL Orbital Sanders are designed to produce exceptional finishes on wood surfaces, speed stock removal, or to remove lacquer, varnish, and other coated finishes.

Orbital sanding provides fast, smooth final finishes. And this model can sand flush on all three sides of the tool, to get in tight places typical of cabinets, desks and shelving.

DUST COLLECTION CANISTER

The integral dust extraction system collects sanding dust in canister supplied with your sander. For maximum efficiency, the dust canister should be emptied frequently during operation.

Your tool is equipped with a dust canister, empty it frequently, after completion of sanding

and before storing the sander. Be extremely careful of dust disposal, materials in fine particle form may be explosive. Do not throw sanding dust on an open fire.

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Combustion from mixture of varnishes, lacquers, polyurethane, oil or water with dust particles can occur if there is a static discharge, spark introduced in the box, or excessive heat.

REMOVING AND INSTALLING

DUST CANISTER

To remove dust canister, squeeze release tabs on both sides of canister and simply pull away from the tool (Fig. 1).

To install dust canister, align dust port with hole in canister and push canister onto tool until it locks into place.

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CLEANING AND EMPTYING

THE DUST CANISTER

To empty canister, hold canister as shown and maintain a firm grip (Fig. 2). Firmly push upward on tab on corner of lid, and remove from canister. Knock excess dust out of the micro filter, or remove dust with your fingers or a soft brush.

You may notice that all the dust may not come out of the canister. This will not affect sanding performance but will reduce dust collection efficiency.

NOTE: Do not wash the micro filter with soap and water. Dust may become more firmly lodged in the pores, which will reduce dust collection, and damage the micro filter.

ABRASIVE SHEETS

Aluminum oxide, silicon carbide, or other synthetic abrasives are recommended for power sanding use. Natural abrasives, such as flint or garnet sheet are too soft for economical use in power sanding. For best results, use Skil abrasive sheets: The uniform spacing between grains minimizes filling or loading. The high quality aluminum oxide sheet with heavy backing, cuts faster and lasts longer.

The following are recommended abrasive sheets and applications:

1.Coarse Grit: For rough wood sanding.

2.Medium Grit: For general wood sanding.

3.Fine Grit: For smoothing wood or

plaster patches.

4. Extra Fine Grit: For final sanding bare wood and smoothing old paint.

Sanding Tips

This sander has been designed for even weight distribution which virtually eliminates the use of pressure. Excessive pressure to the sander may result in an uneven sanding job and premature grit wear. Constant and excessive pressure can cause overheating and possible damage to the motor as well as premature wear out of the pad on hook and loop models.

It's usually best to work in strokes that parallel the grain, using some lateral motion so the main strokes are overlapped as much as 75%.

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If the surface is rough, start sanding with a coarse grit sheet, then medium and then finish with a fine or extra fine abrasive. This procedure will vary with different types of materials and work. Continue to sand with each grit until the surface looks uniform. When going from one grit size to a finer size, do not skip more than two sizes.

To remove the greatest amount of stock, use a coarse grit and move the sander steadily over the entire surface against the grain as well as with the grain. DO NOT REMAIN IN ONE SPOT TOO LONG. It may remove too much material and uneven sanding will result. Sanding with the grain of the wood gives the smoothest final finish.

Additional abrasive sheets can be conveniently cut from large-size commercially available sheets (standard size: 9" x 11-1/16"; 228 x 280mm). Cut into four pieces of equal size as shown (Fig. 4). Choose the proper grit for the job.

CUT HERE	FIG. 4
	9" (228mm)
11-1/16" (280mm)

! WARNING

! CAUTION

! WARNING

! WARNING

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Maintenance

Service

Preventive maintenance performed by unauthorized personnel may result in misplacing of

internal wires and components which could cause serious hazard. We recommend that all tool service be performed by a Skil Factory Service Center or Authorized Skil Service Station.

TOOL LUBRICATION

Your Skil tool has been properly lubricated and is ready to use. It is recommended that tools with gears be regreased with a special gear lubricant at every brush change.

CARBON BRUSHES

The brushes and commutator in your tool have been engineered for many hours of dependable service. To maintain peak efficiency of the motor, we recommend every two to six months the brushes be examined. Only genuine Skil replacement brushes specially designed for your tool should be used.

BEARINGS

After about 300-400 hours of operation, or at every second brush change, the bearings

should be replaced at Skil Factory Service Center or Authorized Skil Service Station. Bearings which become noisy (due to heavy load or very abrasive material cutting) should be replaced at once to avoid overheating or motor failure.

Cleaning

To avoid accidents always disconnect the tool from the power supply before cleaning or

performing any maintenance. The tool may be cleaned most effectively with compressed dry air. Always wear safety goggles when cleaning tools with compressed air.

Ventilation openings and switch levers must be kept clean and free of foreign matter. Do not attempt to clean by inserting pointed objects through openings.

Certain cleaning agents and solvents damage plastic parts. Some of these are: gasoline,

carbon tetrachloride, chlorinated cleaning solvents, ammonia and household detergents that contain ammonia.

Accessories

If an extension cord is necessary, a cord with adequate size conductors that is capable

of carrying the current necessary for your tool must be used. This will prevent excessive voltage drop, loss of power or overheating. Grounded tools must use 3- wire extension cords that have 3-prong plugs and receptacles.

NOTE: The smaller the gauge number, the heavier the cord.

RECOMMENDED SIZES OF EXTENSION CORDS 120 VOLT ALTERNATING CURRENT TOOLS

	Tool’s	Cord Size in A.W.G.				Wire Sizes in mm2
	Ampere
		Cord Length in Feet				Cord Length in Meters
	Rating
		25	50	100	150	15	30	60	120
	3-6
		18	16	16	14	0.75	0.75	1.5	2.5
	6-8	18	16	14	12	0.75	1.0	2.5	4.0
	8-10	18	16	14	12	0.75	1.0	2.5	4.0
	10-12	16	16	14	12	1.0	2.5	4.0	—
	12-16	14	12	—	—	—	—	—	—

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