BOSCH 1671 Circular Saw Instruction Manual

BOSCH 1671 Circular Saw

General Safety Rules

WARNING Rresult in electric shock, fire and/or serious injury. ead all instructions. Failure to follow all instructions listed below mayThe term “power tool” in !all of the warnings listed below refers to your mains- operated (corded) power tool or battery-operated (cordless) power tool.

SAVE THESE INSTRUCTIONS

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.
• 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.
• If operating the power tool in damp locations is unavoidable a Ground Fault Circuit Interrupter (GFCI) must be used to supply the power to your tool. GFCI and personal protection devices like electrician’s rubber gloves and footwear will further enhance your personal safety.

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 safety equipment. Always wear eye protection. Safety equipment such as dust mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries.
• Avoid accidental starting. Ensure the switch is in the off-position before plugging in. Carrying power tools with your finger on the switch or plugging in 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 these devices can reduce dust-related hazards.
• Keep handles dry, clean and free from oil and grease. Slippery hands cannot safely control the power tool.

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 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 tools 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 and in the manner intended for the particular type of power tool, 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.
• 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.

Battery tool use and care

• 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.

• 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. 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.

WARNING Read all safety warnings and all instructions.

Cutting procedures

! DANGER Keep hands away from cutting area and blade. Keep your second hand on auxiliary handle, or motor housing. If hands are holding the saw, they cannot be cut by the blade.

• Do not reach underneath the workpiece. The guard cannot protect you from the blade below the workpiece.
• Adjust the cutting depth to the thickness of the workpiece. Less than a full tooth of the blade teeth should be visible below the workpiece.
• NEVER hold piece being cut in your hands or across your leg. Secure the workpiece to stable platform. It is important to support the work properly to minimize body exposure, blade binding, or loss of control.
• Hold power tool by the insulated gripping surfaces when performing an operation where the cutting tool may contact hidden wiring or it own cord. Contact with a “live” wire will also make exposed metal parts of the tool “live” and shock the operator.
• When ripping always use a rip fence or straight edge guide. This improves accuracy of cut and reduces the chance for blade binding.
• Always use blades with correct size and shape (diamond vs. round) of arbor holes. Blades that do not match the mounting hardware of the saw will run eccentrically, causing loss of control.
• Never use damaged or incorrect blade washers or bolts. The blade washers and bolt were specially designed for your saw, for optimum performance and safety of operation.
• This product is intended to cut wood and wood-like products only. Dust build up around the lower guard and hub from other materials (plastic, masonry or metal) may disable the lower guard operation.
• Inspect the condition and quality of the wood and remove all nails from lumber before cutting. Wet lumber, green lumber or pressure treated lumber require special attention during cutting operation to prevent kickback.
• Depending upon use, the switch may not last the life of the saw. If the switch should fail in the “OFF” position, the saw may not start. If it should fail while the saw is running, the saw may not shut off. If either occurs, unplug the saw immediately and do not use until repaired.
• This circular saw should not be mounted to a table and converted to a table saw. Circular saws are not designed or intended to be used as table saws.
• Kickback and related warnings
• Causes and operator prevention of kickback: Kickback is a sudden reaction to a pinched, bound or misaligned saw blade, causing an uncontrolled saw to lift up and out of the workpiece toward the operator.
• When the blade is pinched or bound tightly by the kerf closing down, the blade stalls and the motor reaction drives the unit rapidly back toward the operator.
• If the blade becomes twisted or misaligned in the cut, the teeth at the back edge of the blade can dig into the top surface of the wood causing the blade to climb out of the kerf and jump back toward the operator.
• Kickback is the result of tool misuse and/or incorrect operating procedures or conditions and can be avoided by taking proper precautions as given below:
• Maintain a firm grip with both hands on the saw and position your body and arm to allow you to resist kickback forces. Position your body to either side of the blade, but not in line with the blade. Kickback could cause the saw to jump backwards, but kickback forces can be controlled by the operator, if proper precautions are taken.
• When blade is binding, or when interrupting a cut for any reason, release the trigger and hold the saw motionless in the material until the blade comes to a complete stop. Never attempt to remove the saw from the work or pull the saw backward while the blade is in motion or kickback may occur. Investigate and take corrective action to eliminate the cause of blade binding.
• When restarting a saw in a workpiece, center the saw blade in the kerf and check that saw teeth are not engaged into the material. If saw blade is binding, it may walk up or kickback from the workpiece as the saw is restarted.
• Support large panels to minimize the risk of blade pinching and kickback. Large panels tend to sag under their own weight. Supports must be placed under the panel on both sides, near the line of cut and near the edge of the panel.
• Do not use dull or damaged blade. Unsharpened or improperly set blades produce narrow kerf causing excessive friction, blade binding and kickback.
• Blade depth and bevel adjusting locking levers must be tight and secure before making cut. If blade adjustment shifts while cutting, it may cause binding and kickback.
• Use extra caution when making a “Plunge Cut” into existing walls or other blind areas. The protruding blade may cut objects that can cause kickback.
• The blade washers and the bolt on your saw have been designed to work as a clutch to reduce the intensity of a kickback. Understand the operation and settings of the VARI-TORQUE CLUTCH. The proper setting of the clutch, combined with firm handling of the saw will allow you to control kickback.
• Never place your hand behind the saw blade. Kickback could cause the saw to jump backwards over your hand.
• Do not use the saw with an excessive depth of cut setting. Too much blade exposure increases the likelihood of the blade twisting in the kerf and increases the surface area of the blade available for pinching that leads to kickback.

Lower guard function

Check lower guard for proper closing before each use. Do not operate saw if lower guard does not move freely and close instantly. Never clamp or tie the lower guard into the open position. If saw is accidentally dropped, lower guard may be bent. Raise the lower guard only with the Lower Guard Lift Lever and make sure it moves freely and does not touch the blade or any other part, in all angles and depths of cut.

• Check the operation of the lower guard spring. If the guard and the spring are not operating properly, they must be serviced before use. Lower guard may operate sluggishly due to damaged parts, gummy deposits, or a buildup of debris.
• Lower guard should be retracted manually only for special cuts such as “Plunge Cuts” and “Compound Cuts”. Raise lower guard by lower guard Lift lever and as soon as blade enters the material, lower guard must be released. For all other sawing, the lower guard should operate automatically.
• Always observe that the lower guard is covering the blade before placing saw down on bench or floor. An unprotected, coasting blade will cause the saw to walk backwards, cutting whatever is in its path. Be aware of the time it takes for the blade to stop after the switch is released.
• Do not run the tool while carrying it at your side. Lower guard may be opened by a contact with your clothing. Accidental contact with the spinning saw blade could result in serious personal injury.
• Periodically remove the blade, clean the upper, lower guards and the hub area with kerosene and wipe it dry, or blow it clean with compressed air. Preventive maintenance and properly operating guard will reduce the probability of an accident.

WARNING

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

• Lead from lead-based paints,
• Crystalline silica from bricks and cement and other masonry products, and
• Arsenic and chromium from chemically-treated lumber.
  Your risk from these exposures varies, depending on how often you do this type of work. To reduce your exposure to these chemicals: work in a well-ventilated area, and work with approved safety equipment, such as those dust masks that are specially designed to filter out microscopic particles.

Battery/Charger

• 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.
• 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 + 40 degrees F (4 degrees C) and below + 105 degrees F (41 degrees C). Store tool and battery pack in locations where temperatures do not go below 40 degrees F (4 degrees C) or will no exceed 120 degrees F (49 degrees C). Allow battery pack to return to room temperature before attempting to charge.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, then with lemon juice or vinegar. 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 may 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

! WARNING semble the battery or remove any component 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 environmentally 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 municipal 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.”

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.

Functional Description and Specifications

! WARNING adjustments or changing accessories. Such preventive safety measures reduce the risk of starting the tool accidentally.

Cordless Circular Saw

• Model No. 1671
• Voltage rating 36 V
• No load speed n0 4,000/min
• Battery pack BAT818 & BAT836
• Charger BC830
• Charge time 1 hr/45 min.
• Voltage rating 120 V 60 Hz

Maximum Capacities

• Blade 6-1/2″
• Depth of cut at 90° 2-1/8″
• Depth of cut at 45° 1-3/4″
• Depth of cut at 50° 1-1/2″

ATTENTION: Use only thin kerf blades designed for Cordless Circular Saws. For replacement blades we recommend Bosch Cordless Circular saw blades. Their thin kerf and tooth design deliver the best speed, quality of cut, and reduce battery drain. Use of standard blades will substantially affect the performance and reduce run-time.

Assembly

ATTACHING THE BLADE

WARNING 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.

1. Turn BLADE STUD with wrench provided clockwise and remove BLADE STUD and OUTER WASHER (Fig. 2). If the shaft moves while attempting to loosen the blade stud press the lock button (Fig. 1).
2. Retract the lower guard all the way up into the upper guard. While retracting the lower guard, check operation and condition of the LOWER GUARD SPRING.
3. Make sure the saw teeth and arrow on the blade point in the same direction as the arrow on the lower guard.
4. Slide blade through slot in the foot and mount it against the INNER WASHER on the shaft. Be sure the large diameter of the OUTER washer lays flush against the blade.
5. Reinstall OUTER WASHER and tighten BLADE STUD finger tight. The face of upper guard has marks around it that will help you properly adjust the blade stud. Press lock button to lock shaft and TIGHTEN BLADE STUD COUNTER-CLOCKWISE THREE MARKS ON UPPER GUARD WITH THE WRENCH PROVIDED. Do not use wrenches with longer handles, since it may lead to over tightening of the blade stud.

VARI-TORQUE CLUTCH

This clutching action is provided by the friction of the OUTER WASHER against the BLADEand permits the blade shaft to turn when theblade encounters excessive resistance. When the BLADE STUD is properly tightened (as described in No. 5 of Attaching The Blade), the blade will slip when it encounters excessive resistance, thus reducing saw’s tendency to KICKBACK. One setting may not be sufficient for cutting all materials. If excessive blade slippage occurs, tighten the blade stud one mark more. OVERTIGHTENING THE BLADE STUD NULLIFIES THE EFFECTIVE-NESS OF THE CLUTCH.

Operating Instructions

DEPTH ADJUSTMENT

Disconnect battery pack from tool. Loosen the depth adjustment lever located on the right side of the tool. Hold the foot down with one hand and raise or lower saw by the handle Tighten lever at the depth setting desired. Check desired depth (Fig. 3). Not more than one tooth length of the blade should extend below the material to be cut, for minimum splintering (Fig. 4).

SAFETY SWITCH

The safety switch is designed to prevent accidental starts. To operate safety switch, press the release button with your thumb on either side of handle to disengage the lock, then pull the trigger (Fig. 5). When the trigger is released the button will engage the safety switch automatically, and the trigger will no longer operate.

90° CUTTING ANGLE CHECK

Disconnect battery pack from tool. Set foot to maximum depth of cut setting. Loosen bevel adjustment lever, set to 0° on quadrant, retighten lever and check for 90° angle between the blade and bottom plane of foot with a square (Fig. 6). Make adjustments by turning the small alignment screw from bottom side of foot, if necessary (Fig. 7).

BEVEL ADJUSTMENT

Disconnect battery pack from tool. The foot can be adjusted up to 50° by loosening the bevel adjustment knob at the front of the saw. Align to desired angle on calibrated quadrant. Then tighten bevel adjustment knob (Fig. 8). Because of the increased amount of blade engagement in the work and decreased stability of the foot, blade binding may occur. Keep the saw steady and the foot firmly on the workpiece.

LINE GUIDE

For a straight 90° cut, use left side of notch in  the foot. For 45° & 50° bevel cuts, use the rightside (Fig. 9). The cutting guide notch will give an approximate line of cut. Make sample cuts in scrap lumber to verify actual line of cut. This will be helpful because of the number of different blade types and thicknesses available. To ensure minimum splintering on the good side of the material to be cut, face the good side down

SWITCH

To turn tool “ON”, squeeze the trigger switch. To turn the tool “OFF”, release the trigger switch, which is spring loaded and will return to the off position automatically. Your saw should be running at full speed BEFORE starting the cut, and turned off only AFTER completing the cut. To increase switch life, do not turn switch on and off while cutting.

BRAKE

When the trigger is released it activates the electrical brake to stop the blade quickly. This feature is especially useful when making repetitive cuts.

GENERAL CUTS

Always hold the saw handle with one hand and the auxiliary handle or housing with the other. Always make sure saw foot rests on portion of work surface that does not drop off.

WARNING Always be sure either hand  does not interfere with the free movement of the lower guard. Maintain a firm grip and operate the switch with a decisive action. Never force the saw. Use light and continuous pressure.

WARNING

After completing a cut and the trigger has beenreleased, be aware of the necessary time it takes for the blade to come to a complete stop during coast down. Do not allow the saw to brush against your leg or side, since the lower guard is retractable, it could catch on your clothing and expose the blade. Be aware of the necessary blade exposures that exist in both the upper and lower guard areas. When cutting is interrupted, to resume cutting: squeeze the trigger and allow the blade to reach full speed, re-enter the cut slowly and resume cutting. When cutting across the grain, the fibers of the wood have a tendency to tear and lift. Advancing the saw slowly minimizes this effect. For a finished cut, a cross cut blade or miter blade is recommended.

PLUNGE CUTS

Disconnect battery pack from tool before making adjustments. Set depth adjustmentaccording to material to be cut. Tilt saw forward with cutting guide notch lined up with the line you’ve drawn. Raise the lower guard, using lift lever and hold the saw by the front and rear handles (Fig. 10). With the blade just clearing the material to be cut, start the motor. Gradually lower the back end of saw using the front end of the foot as the hinge point. WARNING: As blade startscutting the material, release the lower guard immediately. When the foot rests flat  on the surface being cut, proceed cutting inforward direction to end of cut. WARNING:Allow blade to come to a complete stopbefore lifting the saw from cut. Also, never  pull the saw backward since blade will climb out of the material and KICKBACK  will occur. Turn saw around and finish the cut in the normal manner, sawing forward. If corners of your pocket cut are not completely cut through, use a jigsaw or hand saw to finish the corners.

CUTTING LARGE SHEETS

Large sheets and long boards sag or bend, depending on support. If you attempt to cutwithout leveling and properly supporting the piece, the blade will tend to bind, causing KICK-BACK and extra load on the motor (Fig. 11). Support the panel or board close to the cut, as shown in (Fig. 12). Be sure to set the depth of the cut so that you cut through the sheet or board only and not the table or work bench. The two-by-fours used to raise and support  the work should be positioned so that thebroadest sides support the work and rest on the table or bench. Do not support the work with the narrow sides as this is an unsteady arrangement. If the sheet or board to be cut is too large for a table or work bench, use the supporting two-by-fours on the floor and secure.

RIP CUTS

The combination blade provided with your saw is for both cross cuts and rip cuts. Ripping is cutting lengthwise with the grain of the wood. Rip cuts are easy to do with a rip fence (Fig. 13). To attach fence, insert fence through slots in foot to desired width as shown and secure with the knob

RIP BOARD GUIDE

When rip cutting large sheets, the rip fence may not allow the desired width of cut. Clamp or nail a straight piece of 1″ (25 mm) lumber to the sheet as a guide (Fig. 14). Use the right side of the foot against the board guide.

BATTERY CHARGED CONDITION INDICATOR

The battery is equipped with a charged condition indicator.

By pressing the button ON, the charged condition can be checked when the battery is removed or when the machine is not in use. After approx. 5 seconds, the charged indicator switches off automatically.
• • • When all three lights are illuminated, this indicates the battery pack is between 67% and 100% charged.
• • When only two lights illuminate, this indicates the battery pack is between 33% and 66% charged.

• When only one light illuminates, this indicates the battery pack is less than 33% charged.

When one light blinks the battery pack is almost fully discharged.

TEMPERATURE INDICATOR LIGHT

The red indicator light signals whether the battery or tool (with battery inserted) is in the optimum temperature range. When the temperature is too high, the tool will not operate at full capacity. If the red indicator light illuminates continuously when the battery is inserted into the charger. The battery is outside the charging temperature range and cannot be charged. If the red indicator light blinks when the button or on/off switch (with battery inserted) is pressed, the battery is outside the operating range of -10 °C to +60 °C. When the temperature is above 70 °C the battery turns off until it’s in the optimum temperature range.

INSERTING AND RELEASING BATTERY PACK

Slide charged battery pack into the housing until the battery pack locks into position andthe red warning label is no longer visible (Fig. 1). Your battery pack 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 To remove the battery pack, press the batterypack release button and slide the battery pack away from housing. The red warning label will become partially visible. Press the battery pack release button again and slide the battery pack completely out of tool housing

CHARGER INDICATORS, SYMBOLS AND MEANING

If the indicator lights are “OFF”, the charger

• 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. Fastcharging will automatically stop when the battery pack is fully chargedis not receiving power from power supply outlet.
• If the red indicator light is “ON”,the battery pack is too hot or cold for fast-charging. The charger will automatically switch to fastcharging once a suitable temperature is reached.
• If the red indicator light is “BLINKING”, the battery pack cannot accept a charge or thecontacts 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.

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 140°F (60°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 140°F (60°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:
   • 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

CHARGING BATTERY PACK (BC830 1 HOUR CHARGER)

Plug charger cord into your standard power outlet, then insert battery pack into charger (Fig. 15). The charger’s green indicator light will begin to “BLINK”. This indicates that the battery is receiving a fast charge. Fast- charging will automatically stop when the battery pack is fully charged. When the unit beeps and the indicator light stops “BLINKING” (and becomes a steady green light) fast charging is complete. 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. 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. 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 needed, the internal fan of the charger will turn on to aid the charging process and speed. When charging several batteries in sequence, the charge time may slightly increase. 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.

Maintenance

Service

WARNING

NO USER SERVICEABLE PARTS INSIDE. Preventive maintenance performed by unauthorized personnel may result in misplacing ofinternal wires and components which could cause serious hazard. We recommend that all tool service be performed by aBosch Factory Service Center or Authorized Bosch Service Station. SERVICEMEN: 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.

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.

BEARINGS

Bearings which become noisy (due to heavy load or very abrasive material cutting) should be replaced at once to avoid overheating and motor failure.

Cleaning

WARNING

To avoid accidents, always disconnect the tool and/or charger from the power supply before cleaning. 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 opening.

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.

Accessories

WARNING

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

• (*= standard equipment)
• (**= optional accessories)
• • 1 hour charger
• ** rip fence
• • 6-1/2″ thin kerf 18 tooth carbide blade
• ** 6-1/2″ thin kerf 24 tooth carbide blade

WARRANTY

LIMITED WARRANTY OF BOSCH PORTABLE AND BENCHTOP POWER TOOLS

Robert Bosch Tool Corporation (“Seller”) warrants to the original purchaser only, that all BOSCH portable and benchtop power tools will be free from defects in material or workmanship for a period of one year from date of purchase. SELLER’S SOLE OBLIGATION AND YOUR EXCLUSIVE REMEDY under this Limited Warranty and, to the extent permitted by law, any warranty or condition implied by law, shall be the repair or replacement of parts, without charge, which are defective in material or workmanship and which have not been misused, carelessly handled, or misrepaired by persons other than Seller or Authorized Service Station. To make a claim under this Limited Warranty, you must return the complete portable or benchtop power tool product, transportation prepaid, to any BOSCH Factory Service Center or Authorized Service Station. For Authorized BOSCH Power Tool Service Stations, please refer to your phone directory. THIS LIMITED WARRANTY DOES NOT APPLY TO ACCESSORY ITEMS SUCH AS CIRCULAR SAW BLADES, DRILL BITS, ROUTER BITS, JIGSAW BLADES, SANDING BELTS, GRINDING WHEELS AND OTHER RELATED ITEMS. ANY IMPLIED WARRANTIES SHALL BE LIMITED IN DURATION TO ONE YEAR FROM DATE OF PURCHASE. SOME STATES IN THE U.S., SOME CANADIAN PROVINCES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU. IN NO EVENT SHALL SELLER BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES (INCLUDING BUT NOT LIMITED TO LIABILITY FOR LOSS OF PROFITS) ARISING FROM THE SALE OR USE OF THIS PRODUCT. SOME STATES IN THE U.S. AND SOME CANADIAN PROVINCES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU. THIS LIMITED WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE IN THE U.S., PROVINCE TO PROVINCE IN CANADA AND FROM COUNTRY TO COUNTRY. THIS LIMITED WARRANTY APPLIES ONLY TO PORTABLE AND BENCHTOP ELECTRIC TOOLS SOLD WITHIN THE UNITED STATES OF AMERICA, CANADA AND THE COMMONWEALTH OF PUERTO RICO. FOR WARRANTY COVERAGE WITHIN OTHER COUNTRIES, CONTACT YOUR LOCAL BOSCH DEALER OR IMPORTER.

Robert Bosch Tool Corporation 1800 W. Central Road Mt. Prospect, IL 60056-2230 Exportado por: Robert Bosch Tool Corporation Mt. Prospect, IL 60056-2230, E.U.A.

Call Toll Free for Consumer Information & Service Locations

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

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