Bosch GSR12V-300 Owner's Manual

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

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

IMPORTANT

Read Before Using

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IMPORTANT

Lire avant usage

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IMPORTANTE

Leer antes de usar

For English Version

See page 2

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Version française

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Versión en español

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GSR12V-300

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▶ 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 us e an y ad a pter plugs with e arthed (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.

Us e 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.

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.

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.

General Power Tool Safety Warnings

Safety Symbols

The definitions below describe the level of severity for each signal word. Please read the manual

and pay attention to these symbols.

This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.

DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.

WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

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General Power Tool Safety Warnings

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 dust-

related hazards.

Do not let familiarity gained from frequent us e of tools all o w you to beco me co m placent a nd ig n ore tool safety principles. A careless action can cause

severe injury within a fraction of a second.

▶ 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.

Disconnect the plug from the power source and/or remove the battery pack, i f detachable, 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 and accessories. 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.

Keep handles and grasping surfaces dry, clean and free from oil and grease. Slippery

handles and grasping surfaces do not allow for safe handling and control of the tool in unexpected situations.

▶ 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 obj e c t s 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

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General Power Tool Safety Warnings

jected 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.

Do not use a battery pack or tool that is damaged or modiﬁed. Damaged or modiﬁed

batteries may exhibit unpredictable behaviour resulting in ﬁre, explosion or risk of injury.

Do not expose a battery pack or tool to ﬁre or excessive temperature. Exposure to ﬁre

or temperature above 265 °F may cause explosion.

Follow all charging instructions and do not charge the battery pack or tool outside the temperature r a n g e sp eciﬁed in the instructions. Charging improperly or at

emperatures outside the speciﬁed range may damage the battery and increase the risk of ﬁre.

▶ Service

Have your power tool serviced by a qualified re p air person us ing only iden t ical replacement parts. This will ensure that the

safety of the power tool is maintained.

Never service damaged battery packs.

Service of battery packs should only be performed by the manufacturer or authorized service providers.

Safety Rules for Cordless Drill/Drivers

▶ Safety instructions for all

operations

Hold the power tool by insulated gripping surfaces, when performing an operation where the cutting accessory or fasteners may contact hidden wiring. Cu t ting

accessory or fasteners contacting a “live” wire may make exposed metal parts of the power tool “live” and could give the operator an electric shock.

▶ Safety instructions when using

long drill bits

Never operate at higher speed than the maximum speed rating of the drill bit. At

higher speeds, the bit is likely to bend if allowed to rotate freely without contacting the workpiece, resulting in personal injury.

Always start drilling at low speed and with the bit tip in contact with the workpiece.

At higher speeds, the bit is likely to bend if allowed to rotate freely without contacting the workpiece, resulting in personal injury.

Apply pressure only in direct line with the bit and do not apply excessive pressure.

Bits can bend causing breakage or loss of control, resulting in personal injury.

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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.

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.

Use vacuum system and protective gear when drilling into materials which generate dust.

Some dust created by

power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are:

• Lead from lead-based paints,

• Crystalline silica from bricks and cement

and other masonry products, and

• Arsenic and chromium from chemically-

treated lumber.

Yo ur ris k from these expos ures 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 s pecially 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 Designation / Explanation

V Volts (voltage)

Ah Amp hour (measurement of battery capacity)

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.)

No load speed (rotational speed at no load)

n Rated speed (maximum attainable speed)

.../min

Revolutions or reciprocation per minute (revolutions, strokes, surface speed, orbits etc. per minute)

0 Off position (zero speed, zero torque...)

1, 2, 3, ...

I, II, III,

Selector settings (speed, torque or position settings. Higher number means greater speed)

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)

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Symbols

Symbol Designation / Explanation

Designates Li-ion battery recycling program

Designates Ni-Cad battery recycling program

Alerts user to read manual

Alerts user to wear eye protection

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

This symbol designates that this component 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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Functional Description and Specifications

Disconnect battery pack from tool or place the switch in the locked or off position before making any assembly, adjustments or changing accessories.

Such preventive safety measures reduce the risk of starting the tool accidentally.

Fig. 1

Cordless Drill/Driver GSR12V-300

GEAR SHIFTER

FORWARD/REVERSING

LEVER & TRIGGER LOCK

RUBBERIZED

GRIP

BATTERY RELEASE TABS

BATTERY PACK

INSULATED GRIPPING SURFACE

ADJUSTABLE

CLUTCH

KEYLESS

CHUCK

BATTERY CHARGE CONDITION INDICATOR LIGHTS

VARIABLE

SPEED

TRIGGER

SWITCH

BUILT IN

WORK LIGHT

VENTILATION

OPENINGS

Model number . . . . . . . . . .GSR12V-300 Voltage rating . . . . . . . . . .10.8V/12V MAX No load speed 1 . . . . . . . . .n

0-460/min

No load speed 2 . . . . . . . . .n

0-1,750/min

Maximum Capacities

Chuck size . . . . . . . . . . . . . .3/8" Screw sizes . . . . . . . . . . . . .9/32" Mild metal . . . . . . . . . . . . . .3/8" Wood . . . . . . . . . . . . . . . . . .3/4"

Allowed ambient temperature

– during charging . . . . . . . .32...113 °F (0...+45 °C) – during operation/

storage . . . . . . . . . . . . . .–4...122 °F (–20...+50 °C)

Battery Packs/Chargers

Please refer to the battery/charger list, included with your tool.

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Disconnect battery pack

from tool before making any assembly, adjustments or changing accesso r i e s . Such p r e v e ntive s a f e ty

measures reduce the risk of starting the tool accidentally.

▶ Inserting and Releasing Battery

Pack

Release battery pack from tool by pressing on both sides of the battery release tabs and pull downward (Fig. 2 or 3).

To insert battery, align battery and slide battery pack into tool until it locks into position. Do not force.

If battery release tabs

are cracked or otherwise damaged, do not insert into tool. Battery can fall out during operation.

▶ Inserting Bits

Move reverse switch lever to the center “OFF” position. Remove battery pack and rotate the clutch ring to the drill bit symbol “ ”. Rotate the chuck sleeve counterclockwise viewing from chuck end, and open chuck t o a p p r o x i m a t e d r i l l b i t diameter. Insert a clean bit up to the drill bit flutes for small bits, or as far as it will go for large bits. Close chuck by rotating the chuck sleeve clockwise and securely tighten by hand (Fig. 4).

Do not use the power of

the drill while grasping chuck to loosen or tighten bit. Friction

burn or hand injury i s possible i f attempting to grasp the spinning chuck.

▶ Belt Clip and Bit Tip Holder

Bosch GSR12V-300 comes with the option to use a metal belt clip and a four piece bit tip holder. Pry off the plastic cover from the back of the drill to install these accessories (Fig. 6).

▼ BELT CLIP

When the tool i s

attache d to the be l t , position yourself to avoid entanglement with surrounding objects. Unexpected

entanglement could cause the tool to fall resulti n g in injury t o the operator o r bystanders.

The belt clip will allow you to conveniently attach your tool to your belt. This feature will allow you to have both hands free when c l i m b i n g a la d d e r or moving t o another work area.

Assembly

CHUCK SLEEVE

Fig. 4

DRILL BIT

BIT HOLDER

SCREWDRIVER BIT

BATTERY RELEASE

TABS

Fig. 2

BATTERY RELEASE

TABS

Fig. 3

Fig. 5

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The belt clip can be positioned on either side of the tool and secured to the back of the tool with a mounting screw (Fig. 6). Always make sure you securely tighten the mounting screw before use.

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

▼ 4X BIT TIP HOLDER

Only store short

screwdriver bits in the on-tool bit tip holder. Longer bits could

interfere with proper tool operation and result in user injury.

The four piece bit tip holder can be used for convenient on tool storage of your most commonly used bits. The bit tip holder can be used on its own, or in conjunction with the belt clip accessory. If mounting both

the belt clip and bit holder accessory, be sure t o place the b e l t clip accessory between the bit tip holder accessory and the tool. Always make sure you securely tighten the mounting screw before use. (Fig. 6).

Fig. 6

Operating Instructions

▶ Protection against Deep

Discharging

The lithium ion battery is protected against deep discharging by the “Electronic Cell Protection (ECP)”. When the battery is empty, the tool is switched off by means of a protective circuit.

▶ 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 trigg er switc h is release d it ac tivate s the bra ke to stop the chuc k quickly. This is especially useful in the repetitive driving and removal of screws.

▶ Forward/Reversing Lever and

Trigger Lock

After t o o l us e , lo c k

trigger in “OFF” position to help prevent accidental starts and accidental discharge.

Your tool is equipped with a forwar d/ reversing lever and trigger lock located above the trigger (Fig. 7). 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.

BIT HOLDER

BELT CLIP

Assembly

Fig. 7

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Do not change direction of rotation until the tool

comes to a complete stop. Shifting during

rotation of the chuck can cause damage to the tool.

▶ Gear Shifting

Your tool is equipped with two separate gear ranges, low gear and high gear. Low ge a r pro v ides h i gh-torqu e and slow e r drilling speeds for heavy duty work or for driving screws. High gear provides faster speeds for drilling lighter work. To change speeds slide switch, to the high or low position (Fig. 1).

ATTENTION: If your tool appears to be running, but the chuck will not turn, check to make sure the gear shifting switch is pushed fully into desired setting.

▶ Adjustable Clutch

Yo u r too l fea t ures 2 1 clu t ch se ttings. Output torque will increase as the clutch ring, is rotated from 1 to 20. The drill “ ” position will lock up the clutch to permit drilling and driving heavy duty work (Fig. 1).

▶ Autolock™

Your tool is equipped with an automatic locking system. This feature will lock the bit holder in one position when the trigger switch is released. This will allow you to tighten or loosen a nut or screw by rotating the tool by hand with the switch off. This is convenient when higher turning torque is needed.

▶ Built-in Work Light

Your tool is also equipped with a light that turns on automatically when the switch is activat e d , fo r be t ter v i s i b i l i t y when drilling/driving (Fig. 1).

▶ Battery Charge Condition

Indicator Lights

Your tool is equipped with charge condition indicator lights (Fig. 1). The indicator lights shows the charge condition of the battery for a few second when the On/Off trigger is pressed halfway or fully.

▶ 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 a tion, 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 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 s l o w i n g the drill to a s t o p . If t h i s procedure is not followed, the tool will have a tendency to torque or twist in your hands when the nut or bolt seats.

▼ DRILLING

▼ DRILLING WITH VARIABLE SPEED

The variable speed trigger allows you to sl o wly i ncrease RPM. By using a sl o w starting speed, you are able to keep the bit from “wander ing”. You can increase the speed as the bit “bites” into the work by squeezing the trigger.

▼ DRIVING WITH VARIABLE SPEED

Variable speed drills will double as a power screwdriver by using a screwdriver bit. Prior to driving screws, pilot and clearance holes should be drilled. Place the threaded

LED Capacity

Continuous lighting 3 x green > 2/3 Continuous lighting 2 x green > 1/3 Continuous lighting 1 x green < 1/3 Flashing light 1 x green reserve

Operating Instructions

2610051568.qxp_GSR12V-300 12/19/18 1:15 PM Page 11

end of the screw in the pilot or clearance hole and start driving the screw slowly, increasing the speed as the screw runs down. Set the screw snugly by slowing to a stop.

▼ FASTENING WITH SCREWS

The procedure shown in Fig. 8 will enable you to fasten materials together using your drill without stripping, splitting or separating the material.

First, clamp the pieces together and drill the hole 2/3 the diameter of the screw. If th e ma terial is soft, dril l on ly 2/3 th e proper length. If it is hard, drill the entire length.

Second, unclamp the pieces and drill the hole in the top piece of wood again to the

same diameter as the shank of the screw. Third, if flat he a d screw is u s e d ,

countersink the hole to make the screw flush with the surface. Realign the holes on the two pieces and apply even pressure when driving the screw. The screw shank clearance hole in the first piece allows the screw head to p u l l the p i e c e s tightly together.

The adjustable screw drill accessory will do all of these operations quickly and easily. Screw drills are available for screw sizes No. 6, 8, 10 and 12.

▼ DRILL BITS

Always inspect drill bits for excessive wear. Use only bits that are sharp and in good condition.

TWIST BITS: Available with straight and reduced shanks for wood and light duty metal drilling. High speed bits cut faster and last longer on hard ma terials.

CARBIDE TIPPED BITS: Used for drilling stone, con crete, plaster, cement and other unusually hard nonmetals. Use continuous heavy f e e d pres sure when e m p l o y i n g carbide tip bits.

▼ DRILLING WOOD

Be certain workpiece is clamped or anchored firm ly. Always apply pressure in a straight line with the drill bit. Maintain enough pressure to keep the drill “biting”.

When drilling holes in wood, twist bits can be used. Twist bits may overheat unless pulled out frequently to clear chips from flutes.

Use a “back-up” block of wood for work th a t is likel y to splinte r , suc h as thin materials.

You will drill a cleaner hole if you ease up on the pressure just before the bit breaks through the wood. Then complete the hole from the back side.

▼ DRILLING METAL

There are two rules for drilling hard materials. First, the harder the material, the greater the pres sure you need to apply to the tool. Second, the harder the material, the slower the speed. Here are a couple of tips for drilling in metal. Lubri cate the tip of the bit occasionally with cutting oil except when drilling soft metals such as alu minum, cop per or cast iron. If the hole to be drilled is fairly large, drill a smaller hole first, then enlarge to the required size, it’s often faster in the long run. Main tain enough pressure to assure that the bit does not just spin in the hole. This will dull the bit and greatly shorten its life.

Operating Instructions

2. Drill same diameter as screw shank.

3. Countersink same diameter as screw head.

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

Adjustable

Screw

Drill

Screw

Apply a slight even pressure when driving screws.

FASTENING WITH SCREWS

FIG. 8

Top

Bottom

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