Bosch 1380 SLIM User Manual

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BM 2610007691 12-09:BM 2610007691 11-09 12/18/09 11:17 AM Page 1

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

1380 Slim

 

Call Toll Free for

Pour obtenir des informations

Llame gratis para

Consumer Information

et les adresses de nos centres

obtener información

 

& Service Locations

de service après-vente,

para el consumidor y

 

 

appelez ce numéro gratuit

ubicaciones de servicio

 

 

 

 

1-877-BOSCH99 (1-877-267-2499) www.boschtools.com

 

 

 

 

 

 

For English Version

Version française

Versión en español

 

See page 2

Voir page 17

Ver la página 32

 

 

 

 

 

BM 2610007691 12-09:BM 2610007691 11-09 12/18/09 11:17 AM Page 2

General Power Tool Safety Warnings

! WARNING Read all safety warnings and instructions. Failure to

follow the warnings and instructions may result in electric shock, fire and/or serious injury.

SAVE ALL WARNINGS AND

INSTRUCTIONS FOR FUTURE

REFERENCE

The term “power tool” in all of the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.

1)Work area safety

a)Keep work area clean and well lit.

Cluttered or 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 children and bystanders away while operating a power tool. Distractions can cause you to lose control.

2)Electrical safety

a)Power tool plugs must match the outlet. Never modify the plug in any way. Do not use any adapter plugs with earthed (grounded) power tools. Unmodified plugs and matching outlets will reduce risk of electric shock.

b)Avoid body contact with earthed or grounded surfaces such as pipes, radiators, ranges and refrigerators. There is an increased risk of electric shock if your body is earthed or 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 for carrying, pulling or unplugging the power tool. Keep cord away from heat, oil, sharp edges or moving parts.

Damaged or entangled cords increase the risk of electric shock.

e)When operating a power tool outdoors, use an extension cord suitable for outdoor use. Use of a cord suitable for outdoor use reduces the risk of electric shock.

f)If operating a power tool in a damp location is unavoidable, use a Ground Fault Circuit Interrupter (GFCI) protected supply. Use of an GFCI reduces the risk of electric shock.

3)Personal safety

a)Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use a power tool while you are 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)Use personal protective equipment. Always wear eye protection. Protective equipment such as dust mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries.

c)Prevent unintentional starting. Ensure the switch is in the off-position before connecting to power source and / or battery pack, picking up or carrying the tool. Carrying power tools with your finger on the switch or energizing power tools that have the switch on invites accidents.

d)Remove any adjusting key or wrench before turning the power tool on. A wrench or a key left attached to a rotating part of the power tool may result in personal injury.

e)Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations.

f)Dress properly. Do not wear loose clothing or jewelry. Keep your hair, clothing and gloves away from moving parts. Loose clothes, jewelry or long hair can be caught in moving parts.

g)If devices are provided for the connection of dust extraction and collection facilities, ensure these are connected and properly used. Use of dust collection can reduce dust-related hazards.

4)Power tool use and care

a)Do not force the power tool. Use the correct power tool for your application.

The correct power tool will do the job better and safer at the rate for which it was designed.

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b)Do not use the power tool if the switch does not turn it on and off. Any power tool that cannot be controlled with the switch is dangerous and must be repaired.

c)Disconnect the plug from the power source and/or the battery pack from the power tool before making any adjustments, changing accessories, or storing power tools. Such preventive safety measures reduce the risk of starting the power tool accidentally.

d)Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power tool or these instructions to operate the power tool.

Power tools are dangerous in the hands of untrained users.

e)Maintain power tools. Check for misalignment or binding of moving parts, breakage of parts and any other condition that may affect the power

tool’s operation. If damaged, have the power tool repaired before use. Many accidents are caused by poorly maintained power tools.

f)Keep cutting tools sharp and clean.

Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.

g)Use the power tool, accessories and tool bits etc. in accordance with these instructions, taking into account the working conditions and the work to be performed. Use of the power tool for operations different from those intended could result in a hazardous situation.

5)Service

a)Have your power tool serviced by a qualified repair person using only identical replacement parts. This will ensure that the safety of the power tool is maintained.

Power Tool-Specific Safety Warnings

Safety Warnings Common for Grinding, Sanding, Wire Brushing, and Abrasive Cutting-Off Operations:

a)This power tool is intended to function as a grinder, sander, wire brush or cutoff tool. Read all safety warnings, instructions, illustrations and specifications provided with this power tool. Failure to follow all instructions listed below may result in electric shock, fire and/or serious injury.

b)Operations such as polishing is not recommended to be performed with this power tool. Operations for which the power tool was not designed may create a hazard and cause personal injury.

c)Do not use accessories which are not specifically designed and recommended by the tool manufacturer. Just because the accessory can be attached to your power tool, it does not assure safe operation.

d)The rated speed of the accessory must be at least equal to the maximum speed marked on the power tool. Accessories running faster than their RATED SPEED can break and fly apart.

e)The outside diameter and the thickness of your accessory must be within the capacity rating of your power tool.

Incorrectly sized accessories cannot be adequately guarded or controlled.

f)The arbor size of wheels, flanges, backing pads or any other accessory must properly fit the spindle of the power tool. Accessories with arbor holes that do not match the mounting hardware of the power tool will run out of balance, vibrate excessively and may cause loss of control.

g)Do not use a damaged accessory. Before each use inspect the accessory such as abrasive wheels for chips and cracks, backing pad for cracks, tear or excess wear, wire brush for loose or cracked wires. If power tool or accessory is dropped, inspect for damage or install an undamaged accessory. After inspecting and installing an accessory, position yourself and bystanders away from the plane of the rotating accessory and run the power tool at maximum no-load speed for one minute. Damaged accessories will normally break apart during this test time.

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h)Wear personal protective equipment. Depending on application, use face shield, safety goggles or safety glasses. As appropriate, wear dust mask, hearing protectors, gloves and workshop apron capable of stopping small abrasive or workpiece fragments. The eye protection must be capable of stopping flying debris generated by various operations. The dust mask or respirator must be capable of filtrating particles generated by your operation. Prolonged exposure to high intensity noise may cause hearing loss.

i)Keep bystanders a safe distance away from work area. Anyone entering the work area must wear personal protective equipment. Fragments of workpiece or of a broken accessory may fly away and cause injury beyond immediate area of operation.

j)Hold power tool by insulated gripping surfaces only, when performing an operation where the cutting accessory may contact hidden wiring or its own cord. Cutting accessory contacting a “live” wire may make exposed metal parts of the power tool “live” and shock the operator.

k)Position the cord clear of the spinning accessory. If you lose control, the cord may be cut or snagged and your hand or arm may be pulled into the spinning accessory.

l)Never lay the power tool down until the accessory has come to a complete stop.

The spinning accessory may grab the surface and pull the power tool out of your control.

m)Do not run the power tool while carrying it at your side. Accidental contact with the spinning accessory could snag your clothing, pulling the accessory into your body.

n)Regularly clean the power tool’s air vents. The motor’s fan will draw the dust inside the housing and excessive accumulation of powdered metal may cause electrical hazards.

o)Do not operate the power tool near flammable materials. Sparks could ignite these materials.

p)Do not use accessories that require liquid coolants. Using water or other liquid coolants may result in electrocution or shock.

Kickback and Related Warnings

Kickback is a sudden reaction to a pinched or snagged rotating wheel, backing pad, brush or any other accessory. Pinching or snagging causes rapid stalling of the rotating accessory which in turn causes the uncontrolled power tool to be forced in the direction opposite of the accessory’s rotation at the point of the binding.

For example, if an abrasive wheel is snagged or pinched by the workpiece, the edge of the wheel that is entering into the pinch point can dig into the surface of the material causing the wheel to climb out or kickout. The wheel may either jump toward or away from the operator, depending on direction of the wheel’s movement at the point of pinching. Abrasive wheels may also break under these conditions.

Kickback is the result of power tool misuse and/or incorrect operating procedures or conditions and can be avoided by taking proper precautions as given below.

a)Maintain a firm grip on the power tool and position your body and arm to allow you to resist kickback forces. Always use auxiliary handle, if provided, for maximum control over kickback or torque reaction during start-up. The operator can control torque reactions or kickback forces, if proper precautions are taken.

b)Never place your hand near the rotating accessory. Accessory may kickback over your hand.

c)Do not position your body in the area where power tool will move if kickback occurs. Kickback will propel the tool in direction opposite to the wheel’s movement at the point of snagging.

d)Use special care when working corners, sharp edges etc. Avoid bouncing and snagging the accessory. Corners, sharp edges or bouncing have a tendency to snag the rotating accessory and cause loss of control or kickback.

e)Do not attach a saw chain woodcarving blade or toothed saw blade. Such blades create frequent kickback and loss of control.

Safety Warnings Specific for Grinding and Abrasive Cutting-Off Operations:

a)Use only wheel types that are recommended for your power tool and the specific guard designed for the selected wheel. Wheels for which the

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power tool was not designed cannot be adequately guarded and are unsafe.

b)The guard must be securely attached to the power tool and positioned for maximum safety, so the least amount of wheel is exposed towards the operator.

The guard helps to protect operator from broken wheel fragments and accidental contact with wheel.

c)Wheels must be used only for recommended applications. For example: do not grind with the side of cut-off wheel. Abrasive cut-off wheels are intended for peripheral grinding, side forces applied to these wheels may cause them to shatter.

d)Always use undamaged wheel flanges that are of correct size and shape for your selected wheel. Proper wheel flanges support the wheel thus reducing the possibility of wheel breakage. Flanges for cut-off wheels may be different from grinding wheel flanges.

e)Do not use worn down wheels from larger power tools. Wheel intended for larger power tool is not suitable for the higher speed of a smaller tool and may burst.

Additional Safety Warnings Specific for Abrasive Cutting-Off Operations:

Do not attempt to cut large stock or sheets of metal as this machine is not designed to be a dedicated cut-off machine.

a)Do not “jam” the cut-off wheel or apply excessive pressure. Do not attempt to make an excessive depth of cut.

Overstressing the wheel increases the loading and susceptibility to twisting or binding of the wheel in the cut and the possibility of kickback or wheel breakage.

b)Do not position your body in line with and behind the rotating wheel. When the wheel, at the point of operation, is moving away from your body, the possible kickback may propel the spinning wheel and the power tool directly at you.

c)When wheel is binding or when interrupting a cut for any reason, switch off the power tool and hold the power

tool motionless until the wheel comes to a complete stop. Never attempt to remove the cut-off wheel from the cut while the wheel is in motion otherwise kickback may occur. Investigate and take corrective action to eliminate the cause of wheel binding.

d)Do not restart the cutting operation in the workpiece. Let the wheel reach full speed and carefully reenter the cut. The wheel may bind, walk up or kickback if the power tool is restarted in the workpiece.

e)Support panels or any oversized workpiece to minimize the risk of wheel pinching and kickback. Large workpieces tend to sag under their own weight. Supports must be placed under the workpiece near the line of cut and near the edge of the workpiece on both sides of the wheel.

f)Use extra caution when making a “pocket cut” into existing walls or other blind areas. The protruding wheel may cut gas or water pipes, electrical wiring or objects that can cause kickback.

Do not use type 1 abrasive wheels designed for straight grinding.

Safety Warnings Specific for Sanding Operations:

a)Do not use excessively oversized sanding disc paper. Follow manufacturer’s recommendations, when selecting sanding paper. Larger sanding paper extending beyond the sanding pad presents a laceration hazard and may cause snagging, tearing of the disc or kickback.

Safety Warnings Specific for Wire Brushing Operations:

a)Be aware that wire bristles are thrown by the brush even during ordinary operation. Do not overstress the wires by applying excessive load to the brush.

The wire bristles can easily penetrate light clothing and/or skin.

b)If the use of a guard is recommended for wire brushing, do not allow any interference of the wire wheel or brush with the guard. Wire wheel or brush may expand in diameter due to work load and centrifugal forces.

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Additional Safety Warnings

GFCI and personal protection devices like electrician’s rubber gloves and footwear will further enhance your personal safety.

Do not use AC only rated tools with a DC power supply. While the tool may appear to work, the electrical components of the AC rated tool are likely to fail and create a hazard to the operator.

Keep handles dry, clean and free from oil and grease. Slippery hands cannot safely control the power tool.

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.

Develop a periodic maintenance schedule for your tool. When cleaning a tool be careful not to disassemble any portion of the tool since internal wires may be misplaced or pinched or safety guard return springs may be improperly mounted.

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

Risk of injury to user. The power cord must only be serviced by a Bosch Factory Service Center or Authorized Bosch Service Station.

Use hand guard when sanding and brushing.

Do not use type 1A or 27A wheels for face grinding. Side forces applied to these wheels may cause them to shatter or burst.

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 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

 

 

n

Rated speed

Manufacturers rated speed

 

 

 

 

 

 

 

 

 

 

.../min

Revolutions or reciprocation

Revolutions, strokes, surface speed,

 

 

 

 

 

 

 

 

per minute

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Li-ion RBRC seal

Designates Li-ion battery recycling

 

 

 

 

 

 

 

 

 

program

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ni-Cad RBRC seal

Designates Ni-Cad battery recycling

 

 

 

 

 

 

 

 

 

program

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Read manual symbol

Alerts user to read manual

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Wear eye protection symbol

Alerts user to wear eye protection

 

 

 

 

 

 

 

 

 

 

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Symbols (continued)

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.

This symbol designates that this tool is listed by Underwriters Laboratories.

This symbol designates that this tool is listed by Underwriters Laboratories, to United States and Canadian Standards.

This symbol designates that this tool is listed by the Canadian Standards Association.

This symbol designates that this tool is listed by the Canadian Standards

Association, to United States and Canadian Standards.

This symbol designates that this tool is listed by the Intertek Testing

Services, to United States and Canadian Standards.

This symbol designates that this tool complies to NOM Mexican Standards.

-8-

! WARNING

BM 2610007691 12-09:BM 2610007691 11-09 12/18/09 11:17 AM Page 9

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.

Angle Grinder

FIG. 1

WRENCH &

 

STORAGE

VENTILATION

AREA

OPENINGS

 

SWITCH

 

BUTTON

 

SPINDLE LOCK

VIBRATION CONTROL

SIDE HANDLE

(Optional Accessory)

GRINDING

WHEEL

WHEEL

 

HAND GUARD

GUARD

 

SIDE HANDLE

(Optional Accessory)

 

 

 

Model number

*Rated speed

*Max. abrasive wheel diameter Spindle thread

Max. spindle length Max. wire wheel Max. wire cup brush

*Max. sanding disc

1380 Slim

n 11,000/min

4 1/2" (115 mm) type 27 5/8"-11 UNC

9/16"

4" Dia. Used with type 27 guard 3" Dia.

4 1/2" Dia.

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Functional Description and Specifications (Continued)

Model number

1380 Slim

* Max. type 27 grinding wheels

4 1/2" Dia.

* Max. type 1A and 27A cutting wheel

4 1/2" Dia.

* Max. flap disc

4 1/2" Dia.

Accessory speed rating must be equal to or greater than the tool’s speed rating. Do not exceed the recommended wheel diameter.

NOTE: Not recommended for use with type 11 cup wheels.

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

Assembly

WHEEL GUARD INSTALLATION

Wheel guard must be ! WARNING attached when using disc

grinding or cutting wheels. Always keep wheel guard between you and your work while grinding or cutting.

The position of the guard can be adjusted to accommodate the operation being performed.

To attach wheel guard DISCONNECT tool from power source.

Position guard on spindle neck so that the notches on guard line up with the keys on the spindle neck (Fig. 2).

Rotate guard either direction to desired position, and tighten screw with the hex wrench provided to secure guard in place.

TO REMOVE GUARD: Loosen screw with the hex wrench provided, rotate guard until the

notches on guard line up with the keys on the spindle neck, and lift guard off the spindle neck (Fig. 2).

FIG. 2

KEYS

SCREW

NOTCHES

LOCK NUT AND BACKING FLANGE

Your tool is equipped with a threaded spindle for mounting accessories. Always use the supplied lock nut (and backing flange) that has same thread size as spindle.

VIBRATION CONTROL SIDE HANDLE

(Optional Accessory)

The side handle is used to control and balance the tool. The handle must be threaded into the front housing on either side of the tool, depending on personal preference and comfort. Use the side handle for safe control and ease of operation (Fig. 1).

OPTIONAL HAND GUARD

(Optional Accessory)

The hand guard is to be used with backing pads, sanding discs and wire brushes to keep fingers and hand away from work surface, sharp edges, burrs and debris. When using the optional hand guard accessory insert side handle through hole in guard and then thread into housing (Fig. 1).

Ensure that hand guard is positioned between hand and backing pad, sanding disc or wire brush.

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Bosch 1380 SLIM User Manual

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DISC GRINDING WHEEL ASSEMBLy

Disconnect tool from power source. Be sure that wheel guard is in place for grinding. Place BACKING FLANGE and GRINDING WHEEL on the spindle. Thread on the lock nut and tighten nut using the supplied lock nut wrench, while holding the spindle lock in (Fig. 3).

TO REMOVE: Reverse procedure.

Not recommended for use with spin-on wheels.

TYPE 27

 

 

 

 

 

 

SPINDLE

 

 

 

 

 

 

GRINDING

 

 

 

 

 

 

 

WHEEL

 

 

 

 

 

BACKING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FLANGE

 

 

 

 

 

 

 

 

 

 

 

 

LOCK NUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FIG. 3

SPINDLE

TYPE 27

WHEEL GUARD

BACKING

FLANGE

TYPE 27

GRINDING

WHEEL

LOCK NUT

ABRASIVE TyPE 1A & 27A

WHEEL ASSEMBLy

Using the optional type 1A wheel guard, it is possible to perform limited cutting on small stock such as metal tubes, piping or rebar.

Do not attempt to cut large stock or sheets of metal as this tool is not designed to be a dedicated cutting tool.

 

Always use type 1A protection

! WARNING

 

guard for cutting.

Disconnect tool from power source. Be sure that wheel guard is in place for cutting.

When using mounting wheels, thread BACKING FLANGE onto spindle, then place WHEEL on the spindle. Thread on the lock nut and tighten ut using a lock nut wrench provided with adapter kit, while holding the spindle lock in (Fig. 4).

TO REMOVE: Reverse procedure.

TyPE 1 ABRASIVE

STRAIGHT GRINDING WHEELS

Do not use type 1 abrasive ! WARNING wheels designed for

straight/die grinding. This tool is not designed for use with type 1 abrasive straight/die grinding wheels.

FIG. 4

SPINDLE

TYPE 1A

WHEEL GUARD

BACKING

FLANGE

 

LOCK NUT

TYPE 1A (ISO41)

TYPE 27A

CUTTING WHEEL

CUTOFF

 

WHEEL

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SANDING ACCESSORIES ASSEMBLy

BACKING PAD

! WARNING Before attaching a backing pad be sure its maximum

safe operating speed is not exceeded by the nameplate speed of the tool.

! WARNING Wheel guard may not be used for most sanding

operations. Always reinstall wheel guard when converting back to grinding operations.

TO INSTALL BACKING PAD AND

SANDING DISC

Disconnect tool from power source.

Attach hand guard (Fig. 1). Set the tool on its top side (spindle up). Place the rubber backing pad onto the spindle shaft. Center the sanding disc on top of the backing pad. Insert the lock nut through the disc and thread onto the spindle as far as you can with your fingers. Press in the spindle lock, then tighten the backing pad securely with lock nut wrench (Fig. 5).

TO REMOVE: Reverse procedure.

FIG. 5

SPINDLE

BACKING

PAD

SANDING

DISC

LOCK NUT

WIRE

BRUSH

WIRE BRUSH ASSEMBLy

Before assembling wire brush to this tool, disconnect from the power source. Attach hand guard (Fig. 1). Wire brushes are equipped with their own threaded hub, simply thread on to spindle. Be sure to seat against shoulder before turning tool “ON”.

TO REMOVE: Reverse procedure.

WIRE WHEEL ASSEMBLy

Before assembling wire wheel to this tool, disconnect from the power source. Attach type 27 guard (Fig. 2). Wire wheels are equipped with their own threaded hub, simply thread on to spindle. Be sure to seat against shoulder before turning tool “ON”.

TO REMOVE: Reverse procedure.

Operating Instructions

Hold the tool with both hands ! WARNING while starting the tool, since

torque from the motor can cause the tool to twist.

Start the tool before applying to work and let the tool come to full speed before contacting the workpiece. Lift the tool from the work before releasing the switch. DO NOT turn the switch “ON” and “OFF” while the tool is under load; this will greatly decrease the switch life.

SLIDE ON-OFF SWITCH WITH LOCK

The tool is switched “ON” by the switch button located at the side of the motor housing. The switch can be locked in the “ON” position, a convenience for long grinding operations.

TO TURN THE TOOL “ON” without locking it, slide the switch button forward by applying pressure ONLY at the REAR portion of the button. When pressure is released the switch button will snap to “OFF” position (Fig. 1).

TO LOCK THE SWITCH “ON”, slide the switch button forward and press “IN” the FRONT portion.

TO UNLOCK THE SWITCH, simply press and release the REAR portion of the button. Switch is spring loaded and will snap back automatically.

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Grinding Operations

SELECTING GRINDING WHEELS

Before using a grinding wheel, ! WARNING be certain that its maximum

safe operating speed is not exceeded by the nameplate speed of the grinder. Do not exceed the recommended wheel diameter.

DISC GRINDING WHEELS

Grinding wheels should be carefully selected in order to use the grinder most efficiently. Wheels vary in type of abrasive, bond, hardness, grit size and structure. The correct type of wheel to use is determined by the job. Use disc grinding wheels for fast grinding of structural steel, heavy weld beads, steel casting, stainless steel and other ferrous metals.

GRINDING TIPS

Efficient grinding is achieved by controlling the pressure and keeping the angle between wheel and workpiece at 10° to 15°. If the wheel is flat, the tool is difficult to control. If the angle is too steep, the pressure is concentrated on a small area causing burning to the work surface.

Excessive or sudden pres- ! WARNING sure on the wheel will slow

grinding action and put dangerous stresses on the wheel.

When grinding with a new wheel be certain to grind while pulling tool backwards until wheel becomes rounded on its edge. New wheels have sharp corners which tend to “bite” or cut into workpiece when pushing forward.

CUTTING METAL

Using the optional type 1A wheel guard, it is possible to perform limited cutting on small stock such as metal tubes, piping or rebar. When cutting, work with moderate feed, adapted to the material being cut. Do not exert side pressure onto the cutting disc, tilt or oscillate the tool. When cutting profiles and square bar, it is best to start at the smallest cross section.

Always follow precautions for kickback.

Do not apply side pressure to cutting wheel to reduce wheel speed.

Use silicone oxide wheel.

The tool should always be used so that sparks are directed away from user.

Sanding Operations

SELECTING SANDING DISC

Sanding discs are made of extremely hard and sharp aluminum oxide grits, phenol-resin bonded to a sturdy fiber backing for fast heavy-duty service and long life. The discs vary as to size and spacing of the abrasive grits. OPEN COAT (type H) — used for soft materials and on paint or varnish. CLOSED COAT (type K) —used for metal, hardwood, stone, marble and other materials.

Sanding discs range in grit from 16 (very coarse) to 180 (very fine). To obtain best results, select sanding discs carefully. Many jobs require the use of several grit sizes and

at times both “open coat and closed coat” discs are required to get the job done faster. See chart for application examples.

Operation: Refinishing painted wood or metal surfaces.

REMARKS

GRIT

 

 

To remove paint and to smooth

Coarse

surface irregularities.

16-24-30

 

 

To smooth

Medium

the rough sanding.

36-50-80

 

 

To remove scratches left by

Fine

previous discs.

100-120

 

 

To smooth surfaces for painting,

Very Fine

polishing or waxing.

150-180

 

 

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BM 2610007691 12-09:BM 2610007691 11-09 12/18/09 11:17 AM Page 14

SANDING TIPS

For best results, tilt the Disc Sander at a 10° to 15° angle while sanding so that only about 1" of the surface around the edge of the disc contacts the work.

If the disc (accessory) is held ! WARNING flat or the back edge of the

disc comes in contact with the work, a violent thrust to the side may result.

If sander is tilted too much, sanding action will be too great and a rough cut surface or gouging and snagging will result.

Guide the Disc Sander with crosswise strokes. Be careful not to hold the sander in one spot too long. Do not use a circular motion, as this makes swirl marks. Test before use on scrap stock.

Do not force or apply pressure when sanding. Use only the weight of the tool for pressure. Excess pressure actually slows the tool down. If faster stock removal is desired, change to a coarser grit disc.

Remove gummy paint from metal with an “open coat” disc. Sand until sparks start to appear, then stop and change to a “closed coat” disc to remove any remaining paint.

SANDING WOOD

When sanding wood the direction of the disc motion at the contact point should parallel the grain as much as possible. The rapid cut of discs and the swirl type scratch pattern they occasionally create generally prohibit their use for producing the final finish.

Scratches and circular marks are usually the result of using too coarse a grit. When changing to a finer grit, move across the sanding lines that were made by a previous coarser disc.

SANDING METAL

When sanding automobiles or appliances, wipe the metal clean with a non-flammable solvent or commercial cleaner to remove all wax and grease. By doing this first, the sanding discs will sand better and last longer.

For heavy duty work, use a coarse grit disc first. Follow-up with a medium grit to remove scratches. To produce smooth finish, use fine grit disc.

Wire Brush Operations

Wire brushes are intended to “clean” structural steel, castings, sheet metal, stone and concrete. They are used to remove rust, scale and paint.

Avoid bouncing and snagging ! WARNING the wire brush, especially

when working corners, sharp edges etc. This can cause loss of control and kick-back.

BRUSHING PRESSURE

1. Remember, the tips of a wire brush do the work. Operate the brush with the lightest

pressure so only the tips of the wire come in contact with the work.

2.If heavier pressures are used, the wires will be overstressed, resulting in a wiping action; and if this is continued, the life of the brush will be shortened due to wire fatigue.

3.Apply the brush to the work in such a way that as much of the brush face as possible is in full contact with the work. Applying the side or edge of the brush to the work will result in wire breakage and shortened brush life.

 

WIRE WHEEL BRUSH

CORRECT:

INCORRECT:

Wire tips doing

Excessive

the work.

pressure can

 

cause wire

 

breakage.

 

WIRE CUP BRUSH

CORRECT:

INCORRECT:

Wire tips doing

Excessive pressure

the work.

can cause wire

 

breakage.

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! WARNING
! WARNING
! WARNING

BM 2610007691 12-09:BM 2610007691 11-09 12/18/09 11:17 AM Page 15

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 Bosch Factory Service Center or Authorized Bosch Service Station.

TOOL LUBRICATION

Your Bosch 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 Bosch 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 Bosch Factory Service Center or Authorized Bosch 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.

!

CAUTION

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.

Accessory storage & maintenance

Store accessories in a cool dry place and avoid freezing. Before use check accessory for cracks and fractures, do not use if damage is suspected.

Extension Cords

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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