Bosch Power Tools 25618BN, 25618BL, 25618B, CLPK221-181, 25618-01 User 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

24618

25618

IWH181

	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 18	Ver la página 34

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	General Power Tool Safety Warnings
	Read all safety warnings and all instructions. Failure to follow the warnings
! WARNING
	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 the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.

Work area safety

Keep work area clean and well lit. Cluttered or 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 children and bystanders away while operating a power tool. Distractions can cause you to lose control.

Electrical safety

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.

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.

Do not 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 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.

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.

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.

Personal safety

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.

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.

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.

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.

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

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.

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 dustrelated hazards.

Power tool use and care

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.

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.

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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.

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.

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.

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

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.

Battery tool use and care

Recharge only with the charger specified by the manufacturer. A charger that is suitable for one type of battery pack may create a risk of fire when used with another battery pack.

Use power tools only with specifically designated battery packs. Use of any other battery packs may create a risk of injury and fire.

When battery pack is not in use, keep it away from other metal objects like paper clips, coins, keys, nails, screws, or other small metal objects that can make a connection from one terminal to another.

Shorting the battery terminals together may cause burns or a fire.

Under abusive conditions, liquid may be ejected from the battery, avoid contact. If contact accidentally occurs, flush with water. If liquid contacts eyes, additionally seek medical help. Liquid ejected from the battery may cause irritation or burns.

Service

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.

Safety Rules for Cordless Impact Drivers

Wear ear protectors when impact drilling.

Exposure to noise can cause hearing loss.

Use auxiliary handle(s) if supplied with the tool. Loss of control can cause personal injury.

Hold power tool by insulated gripping surfaces, when performing an operation where the cutting accessory may contact hidden wiring. Cutting accessory contacting a "live" wire may make exposed metal parts of the power tool "live" and could give the operator an electric shock.

Use clamps or another practical way to secure and support the workpiece to a stable platform. Holding the work by hand or against your body leaves it unstable and may lead to loss of control.

Do not drill, fasten or break into existing walls or other blind areas where electrical wiring may exist. If this situation is unavoidable, disconnect all fuses or circuit breakers feeding this worksite.

Always wear safety goggles or eye protection when using this tool.

Wear ear protectors when using the tool for extended periods. Prolonged exposure to high intensity noise can cause hearing loss.

Use thick cushioned gloves and limit the exposure time by taking frequent rest periods. Vibration caused by hammer-drill action may be harmful to your hands and arms.

Secure the material being fastened. Never hold it in your hand or across your legs.

Unstable support can cause loss of control and injury.

Avoid accidental starting. Be sure the forward/reverse switch is in the off position before inserting battery pack.

Carrying appliances with your finger on the switch or inserting the battery pack into an appliance with the switch on invites accidents.

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! WARNING

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Remove battery pack before changing accessories. Accidental starting may occur because battery appliances with a battery inserted are in the operative condition.

Be prepared for a reaction torque when “seating” or removing a fastener. The screwdriver housing may tend to twist in the opposite direction of bit rotation when “seating” or removing a fastener depending on the torque setting of the tool.

Do not use dull or damaged bits and accessories. When installing an accessory, insert the shank of the bit well within the chuck. Be sure the chuck has locked onto the bit correctly.

Do not run the tool while carrying it at your side. A spinning bit could become entangled with clothing and injury may result.

Place the tool onto the fastener only when the screwdriver is switched off.

Rotating driver tools can slide off the fastener.

Do not use this tool as a drill. Tools equipped with shut-off clutches are not designed for drilling applications. The clutch can shut off automatically and without warning.

Be careful when driving long screws – there is a risk of sliding off the fastener head depending on type of socket or bit used. First test the run-down of a fastener and pay attention during the screw driving process to ensure you do not injure yourself if the tool bit or socket slides off of the fastener.

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.

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.

Ensure the switch is in the off position before inserting battery pack. Inserting the

battery pack into power tools that have the switch on invites accidents.

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.

Battery/Charger

! WARNING Before using battery charger, read all

instructions and cautionary markings on

(1) battery charger, (2) battery pack, and (3) product using battery.

Use only the charger which accompanied your product or direct replacement as listed in the catalog or this manual. Do not substitute any other charger. Use only Bosch approved chargers with your product. See Functional Description and Specifications.

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! WARNING

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Do not disassemble charger or operate the charger if it has received a sharp blow, been dropped or otherwise damaged in any way. Replace damaged cord or plugs immediately. Incorrect reassembly or damage may result in electric shock or fire.

Do not recharge battery in damp or wet environment. Do not expose charger to rain or snow. If battery case is cracked or otherwise damaged, do not insert into charger. Battery short or fire may result.

Charge only Bosch approved rechargeable batteries. See Functional Description and Specifications. Other types of batteries may burst causing personal injury and damage.

Charge battery pack in temperatures above +32 degrees F (0 degrees C) and below +113 degrees F (45 degrees C). Store tool and battery pack in locations where temperatures will not exceed 120 degrees F (49 degrees C). This is important to prevent serious damage to the battery cells.

Battery leakage may occur under extreme usage or temperature conditions. Avoid contact with skin and eyes. The battery liquid is caustic and could cause chemical burns to tissues. If liquid comes in contact with skin, wash quickly with soap and water. If the liquid contacts your eyes, flush them with water for a minimum of 10 minutes and seek medical attention.

Place charger on flat non-flammable surfaces and away from flammable materials when re-charging battery pack.

The charger and battery pack heat during charging. Carpeting and other heat insulating surfaces block proper air circulation which may cause overheating of the charger and battery pack. If smoke or melting of the case are observed unplug the charger immediately and do not use the battery pack or charger.

Use of an attachment not recommended or sold by Bosch will result in a risk of fire, electric shock or injury to persons.

Battery Care

! WARNING When batteries are not in tool or charger, keep them

away from metal objects. For example, to protect terminals from shorting DO NOT place batteries in a tool box or pocket with

nails, screws, keys, etc. Fire or injury may result.

DO NOT PUT BATTERIES INTO FIRE OR ExPOSE TO HIGH HEAT. They may explode.

Battery Disposal

Do not attempt to disas semble the battery or remove any com ponent projecting from the

battery terminals. Fire or injury may result. Prior to disposal, protect exposed terminals with heavy insulating tape to prevent shorting.

LITHIUM-ION BATTERIES

If equipped with a lithium-ion battery, the battery must be collected, recycled or disposed of in an environ mentally sound manner.

“The EPA certified RBRC Battery Recycling Seal on the lithium-ion (Li-ion) battery indicates Robert Bosch Tool Corporation is voluntarily participating in an industry

program to collect and recycle these batteries at the end of their useful life, when taken out of service in the United States or Canada. The RBRC program provides a convenient alterative to placing used Li-ion batteries into the trash or the munici pal waste stream, which may be illegal in your area.

Please call 1-800-8-BATTERY for information on Li-ion battery recycling and disposal bans/restrictions in your area, or return your batteries to a Skil/Bosch/Dremel Service Center for recycling. Robert Bosch Tool Corporation’s involvement in this program is part of our commitment to preserving our environment and conserving our natural resources.”

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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		Maximum attainable 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 recognized 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.

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! WARNING

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Functional Description and Specifications

Disconnect battery pack from tool before making any assembly, adjustments or changing accessories. Such preventive safety measures

reduce the risk of starting the tool accidentally.

Cordless Impact Drivers

	FIG. 1
		VENTILATION
LOCKING		OPENINGS
SLEEVE
		BRUSH COVER
BIT		FORWARD/REVERSING
		LEVER & TRIGGER LOCK
BUILT IN WORK LIGHT		RUBBERIZED GRIP
VARIABLE SPEED
TRIGGER SWITCH		BIT AND BIT
		STORAGE AREA
		(Model 25618 only)
BATTERY PACK
RELEASE BUTTON
		BELT CLIP
BATTERY PACK		(Optional Accessory)
Model number	25618
Voltage rating	18 V
No load speed	n0 0-2,800/min
Impact rate	0-3,200
Maximum torque	1,500 in-lbs
Maximum Capacities
Chuck size	1/4" Hex-shank with power groove
Battery pack	BAT609, BAT618, BAT610G
	& BAT619G
Charger	BC630 & BC660
Voltage rating	120 V	60 Hz

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

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! WARNING

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Functional Description and Specifications

Disconnect battery pack from tool before making any assembly, adjustments or changing accessories. Such preventive safety measures

reduce the risk of starting the tool accidentally.

Cordless Impact Wrenches

	FIG. 1a
	VENTILATION
	OPENINGS
	BRUSH COVER
OUTPUT DRIVE	FORWARD/REVERSING
	LEVER & TRIGGER LOCK
BUILT IN WORK LIGHT	RUBBERIZED GRIP
VARIABLE SPEED
TRIGGER SWITCH

BATTERY PACK

RELEASE BUTTON

	BELT CLIP
BATTERY PACK	(Optional Accessory)

Model number	24618					IWH181
Voltage rating	18 V					18 V
No load speed	n0 0-2,800/min					n0 0-2,800/min
Impact rate	0-3,200					0-3,200
Maximum torque	1,600 in-lbs					1,500 in-lbs
Maximum Capacities
Output drive	1/2" Square drive					3/8" Square drive
Battery pack	BAT609, BAT618, BAT610G					BAT609, BAT618, BAT610G
	& BAT619G					& BAT619G
Charger	BC630 & BC660					BC630 & BC660
Voltage rating	120 V				60 Hz	120 V			60 Hz

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

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! WARNING

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Assembly

Disconnect battery pack ! WARNING from tool before making

any assembly, adjustments or changing accessories. Such preventive safety measures reduce the risk of starting the tool accidentally.

INSERTING AND REMOVING

ACCESSORIES (Model 25618 only)

To avoid loss of control, ensure bit is locked in chuck

by pulling on bit after it has been inserted.

The chuck accepts only standard 1/4" hexagonal shank accessories with power groove.

Your tool is equipped with a quick release chuck. To insert an accessory, simply pull locking sleeve forward, insert desired accessory into chuck and release locking sleeve (Fig. 2).

To remove an accessory, pull locking sleeve forward and simply remove it from the chuck.

FIG. 2

LOCKING SLEEVE

CHUCK

SCREWDRIVER

BIT

BIT HOLDER

SCREWDRIVER BIT

INSERTING AND REMOVING

ACCESSORIES (Models 24618, & IWH181 only)

Attach only high quality accessories with the proper size square drive designed for use with impact wrenches.

(Model 24618)

Your impact wrench is equipped with a 1/2" square drive.

(Model IWH181)

Your impact wrench is equipped with a 3/8" square drive.

To install a socket, simply push completely onto output drive. To remove, pull off output drive (Fig. 3).

FIG. 3

SOCKET

OUTPUT

DRIVE

Operating Instructions

INTENDED USE

This tool is intended for the fastening and loosening of bolts, nuts and various threaded fasteners. This tool is not intended for use as a drill.

VARIABLE SPEED CONTROLLED

TRIGGER SWITCH

Your tool is equipped with a variable speed trigger switch. The tool can be turned "ON" or "OFF" by squeezing or releasing the trigger.

The speed can be adjusted from the minimum to maximum nameplate RPM by the pressure you apply to the trigger. Apply more pressure to increase the speed and release pressure to decrease speed (Fig. 1).

BRAKE

When the trigger switch is released it activates the brake to stop the chuck quickly. This is especially useful in the repetitive driving and removal of screws.

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! WARNING

! CAUTION

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FORWARD/REVERSING

LEVER & TRIGGER LOCK

After tool use, lock trigger in “OFF” position to help prevent

accidental starts and accidental discharge.

Your tool is equipped with a forward/ reversing lever and trigger lock located above the trigger (Fig. 4). This lever was designed for changing rotation of the bit, and for locking the trigger in an “OFF” position.

For forward rotation, (with chuck pointed away from you) move the lever to the far left.

For reverse rotation move the lever to the far right. To activate trigger lock move lever to the center off position.

Do not change direction of ! WARNING rotation until the tool

comes to a complete stop. Shifting during rotation of the chuck can cause damage to the tool.

FORWARD/REVERSING LEVER & TRIGGER LOCK

FIG. 4

BUILT IN WORK LIGHT

Your tool is also equipped with a light that turns on automatically when the switch is activated, for better visibility when driving (Fig. 1).

BIT STORAGE AREA (Model 25618 only)

Your tool is equipped with a bit and storage area that is conveniently located in the handle base where it is always handy and unlikely to get lost or misplaced (Fig. 5).

BELT CLIP (Optional Accessory)

When the tool is attached to the belt, position yourself to avoid entanglement with surrounding objects.

Unexpected entanglement could cause the tool to fall resulting in injury to the operator or bystanders.

The optional belt clip accessory will allow you to conveniently attach your tool to your belt. This feature will allow you to have both hands free when climbing a ladder or moving to another work area.

The belt clip can be attached to either side of the tool by securing it with a mounting screw. Always make sure you securely tighten the mounting screw before use (Fig.5).

To use clip, turn tool upside down and attach to your belt.

FIG. 5

BIT AND BIT

STORAGE

AREA

BELT CLIP

(Optional Accessory)

INSERTING AND RELEASING BATTERy PACK

Set Forward/Reversing lever to the center (off position). Slide charged battery pack into the housing until the battery pack locks into position (Fig. 6).

Your tool is equipped with a secondary locking latch to prevent the battery pack from completely falling out of the handle, should it become loose due to vibration.

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To remove the battery pack, press the battery	FIG. 6
pack release button and slide the battery pack
forward.

Press the battery pack release button again and slide the battery pack completely out of tool housing (Fig. 6).

IMPORTANT CHARGING NOTES

1.The charger was designed to fast charge the battery only when the battery temperature is between 32˚F (0˚C) and 113˚F (45˚C). If the battery pack is too hot or too cold, the charger will not fast charge the battery. (This may happen if the battery pack is hot from heavy use). When the battery temperature returns to between 32˚F (0˚C) and 113˚F (45˚C), the charger will automatically begin charging.

2.A substantial drop in operating time per charge may mean that the battery pack is nearing the end of its life and should be replaced.

3.Remember to unplug charger during storage period.

4.If battery does not charge properly:

a.Check for voltage at outlet by plugging in some other electrical device.

b.Check to see if outlet is connected to a light switch which turns power “off” when lights are turned off.

c.Check battery pack terminals for dirt. Clean with cotton swab and alcohol if necessary.

d.If you still do not get proper charging, take or send tool, battery pack and charger to your local Bosch Service Center. See “Tools, Electric” in the Yellow Pages for names and addresses.

Note: Use of chargers or battery packs not sold by Bosch will void the warranty.

CHARGER INDICATORS, SyMBOLS AND MEANING (Model BC630)

If the indicator lights are “OFF”, the charger is not receiving power from power supply outlet.

If the green indicator light is “ON”, the charger is plugged in but the battery pack is not inserted, or

the battery pack is fully charged.

If the green indicator light is “BLINKING”, the battery pack is being fast-charged. Fast-charging

will automatically stop when the battery pack is fully charged.

If the red indicator light is “ON”, the battery pack is too hot or cold for fast-charging. The charger will

automatically switch to fast-charging once a suitable temperature is reached.

If the red indicator light is

“BLINKING”, the battery pack cannot accept a charge or the contacts of the charger or battery pack are

contaminated. Clean the contacts of the charger or battery pack only as directed in these operating instructions or those supplied with your tool or battery pack.

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CHARGING BATTERy PACK (Model BC630)

Plug charger cord into your standard power outlet.

With no battery pack inserted, the charger’s green indicator light will go ON. This indicates the charger is receiving power and the charger is ready for operation.

When you insert the battery pack into the charger. The charger’s green indicator light will begin to “BLINK”. This indicates that the battery is receiving a fast charge (Fig. 7).

FIG. 7

BATTERY

PACK

CHARGER

RED				GREEN
LIGHT				LIGHT

When the indicator light stops “BLINKING” (and becomes a steady green light) fast charging is complete. The battery pack is fully charged and can be removed from the charger.

The battery pack may be used even though the light may still be blinking. The light may require more time to stop blinking depending on temperature.

The purpose of the green light is to indicate that the battery pack is fast-charging. It does not indicate the exact point of full charge. The light will stop blinking in less time if the battery pack was not completely discharged.

When you begin the charging process of the battery pack, a steady red light could also mean the battery pack is too hot or too cold.

Fast charging is only possible when the temperature range of the battery pack is

between 32˚F (0˚C) and 113˚F (45˚C). When needed, the internal fan of the charger will turn on to aid the charging process and speed.

As soon as the battery pack reaches the correct temperature range, the battery charger will automatically switch to fast charging.

If the red indicator light is “BLINKING”, the battery pack cannot accept a charge.

•Check to make sure the battery pack is inserted into the charger properly.

•Clean the contacts of the charger or battery pack (e. g. by inserting and removing the battery several times) or replace the battery pack, as required.

When the battery pack is fully charged, unplug the charger (unless you're charging another battery pack) and slip the battery pack back into the tool.

FCC Caution:

The manufacturer is not responsible for radio interference caused by unauthorized modifications to this equipment. Such modifications could void the user’s authority to operate the equipment.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

1)This device may not cause harmful interference, and

2)This device must accept any interference received, including interference that may cause undesired operation.

NOTE! This equipment has been tested and found to comply with the limits for a Class B digital devices, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

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•	Reorient or relocate the receiving antenna.	circuit different from that to which the
•	Increase the separation between the	receiver is connected.
	equipment and receiver.	• Consult the dealer or an experienced
•	Connect the equipment into an outlet on a	radio/TV technician for help.

CHARGER INDICATORS, SyMBOLS AND MEANING (Model BC660)

If the indicator lights are “OFF”, the charger is not receiving power from power supply outlet.

If the green indicator light is

“ON”, the charger is plugged in but the battery pack is not inserted, or the battery pack is fully charged, or

the battery pack is too hot or cold for fastcharging. The charger will automatically switch

to fast-charging once a suitable temperature is reached.

If the green indicator light is “BLINKING”, the battery pack is being fast-charged. Fastcharging will automatically stop when the

battery pack is fully charged.

CHARGING BATTERy PACK (Model BC660)

Plug charger cord into your standard power outlet.

With no battery pack inserted, the charger’s green indicator light will go ON. This indicates the charger is receiving power and the charger is ready for operation.

When you insert the battery pack into the charger, the charger’s green indicator light will begin to “BLINK”. This indicates that the battery is receiving a fast charge (Fig.8).

FIG. 8

BATTERY

PACK

CHARGER

GREEN LIGHT

When the indicator light stops “BLINKING” (and becomes a steady green light) fast charging is

complete. The battery pack is fully charged and can be removed from the charger.

When you begin the charging process of the battery pack, a steady green light could also mean the battery pack is too hot or too cold.

Fast charging is only possible when the temperature range of the battery pack is between 32˚F (0˚C) and 113˚F (45˚C). When needed, the internal fan of the charger will turn on to aid the charging process and speed.

As soon as the battery pack reaches the correct temperature range, the battery charger will automatically switch to fast charging.

The battery pack may be used even though the light may still be blinking. The light may require more time to stop blinking depending on temperature.

The purpose of the green light is to indicate that the battery pack is fast-charging. It does not indicate the exact point of full charge. The light will stop blinking in less time if the battery pack was not completely discharged.

If the green indicator light is “ON”, the battery pack cannot accept a charge.

•Check to make sure the battery pack is inserted into the charger properly.

•Clean the contacts of the charger or battery pack (e. g. by inserting and removing the battery several times) or replace the battery pack, as required.

When the battery pack is fully charged, unplug the charger (unless you're charging another battery pack) and slip the battery pack back into the tool.

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Operating Tips

You will extend the life of your bits and do neater work if you always put the bit in contact with the work before pulling the trigger. During the oper ation, hold the tool firmly and exert light, steady pressure. Too much pressure at low speed will stall the tool. Too little pressure will keep the bit from cutting and cause excess friction by sliding over the surface. This can be damaging to both tool and bit.

DRIVING WITH VARIABLE SPEED

The technique is to start slowly, increasing the speed as the screw runs down. Set the screw snug yl by slowing to a stop. Prior to driving screws, pilot and clearance holes should be drilled.

Always hold the machine straight on the bolt to be tightened.

The best method to determine the right impacting/tightening duration is by means of a trial. For small screws, the right impacting/tightening duration can be reached in less then 0.5 Sec. Therefore, work with low RPM and switch the machine off immediately when the screw is tight and the impacting sound can be heard.

For screwing larger, longer wood screws into hard material, pre-drilling is the best method.

TIGHTENING TORqUE (Models 24618 & IWH181 only)

The tightening torque depends on the duration of the impacting/tightening action. The largest tightening torque is achieved after approx. 6 to

10 Sec. impacting/tightening action.

The torque build-up depends on the following factors:

•Hardness of the bolts/nuts.

•Type of washer (disk washer, spring washer, seal).

•Hardness of the material to be joined.

•Lubricating effect at the surfaces of the junction.

This leads to the following application cases:

Hard case: The joining of metal to metal with a disk washer. The maximum torque is reached after a relative short impacting/tightening action.

Medium case: The joining of metal to metal where spring ring washer, disk spring washer, stud bolts or bolts/nuts with conical seats are used.

Soft case: The joining of e.g. metal to wood or insulation material.

For middle or soft joining cases, the maximum tightening torque is less as for hard cases. Therefore, a longer impacting/tightening action is necessary to arrive at the maximum tightening torque.

FASTENING WITH SCREWS

This procedure shown in (Fig. 9) will enable you to fasten ma erialst together with your tool without stripping, splitting or separating the material.

First, clamp the pieces together and drill the first hole 2/3 the diam eter of the screw. If the material is soft, drill only 2/3 the proper length. If it is hard, drill the entire length.

Second, unclamp the pieces and drill the second hole the same diameter as the screw shank in the first or top piece of wood.

Third, if flat head screw is used, countersink the hole to make the screw flush with the surface. Then, simply apply even pressure when driving the screw. The screw shank clearance hole in the first piece allows the screw head to pull the pieces tightly together.

FASTENING WITH SCREWS

1.  Drill 2/3 diameter and 2/3 of screw length for soft materials, full length for hard materials.

Apply a slight even pressure when driving screws.

2.  Drill same diameter as screw shank.

3.  Countersink same diameter as screw head.

Screw

FIG. 9

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! WARNING

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RUNNING NUTS AND BOLTS

Variable speed control must be used with caution for driving nuts and bolts with socket set attach ments. The technique is to start slowly, increasing speed as the nut or bolt runs down.

Set the nut or bolt snugly by slowing the tool to a stop. If this procedure is not followed, the tool will have a tendency to torque or twist in your hands when the nut or bolt seats.

Maintenance

Service

NO USER SERVICEABLE

PARTS INSIDE. Preventive maintenance performed by un au thorized 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. SERVICE MEN: Disconnect tool and/or charger from power source before servicing.

BATTERIES

Be alert for battery packs that are nearing their end of life. If you notice decreased tool performance or significantly shorter running time between charges then it is time to replace the battery pack. Failure to do so can cause the tool to operate improperly or damage the charger.

TOOL LUBRICATION

Your Bosch tool has been properly lubricated and is ready for use.

CARBON BRUSHES

The brushes and commutator in your tool have been engineered for many hours of dependable service.

If your tool runs spo rad cally,i loses power, makes unusual noises or runs at a reduced speed, check the brushes. To continue using the tool in this condition will permanently damage your tool.

Check both brushes. Usually the brushes will not wear out simul aneouslyt . If one brush is worn out, replace both brushes.

To check brushes: Disconnect battery pack from tool. Rotate brush cap at the rear part of housing counter-clockwise with a coin or screwdriver and remove cap (Fig. 10).

FIG. 10

BRUSH

BRUSH

CAP

Lift out the brushes; note which way they face, so that the brushes can be returned to their original position. New brushes can also be inserted turned 180º. Clean the brush holder openings with com pressed air or a clean cloth and replace the brushes and brush covers.

After replacing brushes the tool should be run at no-load and run it freely at full speed for 2 minutes before using the tool. This will allow the brushes to “seat” properly and will give you more hours of life from each set of brushes.

Only genuine Bosch replacement brushes specially designed for your tool should be used.

D.C. MOTORS

The motor in your tool has been engineered for many hours of dependable service. To maintain peak efficiency of the motor, we recommend it be examined every six months. Only a genuine Bosch replacement motor specially designed for your tool should be used.

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