GKS 18V26 Professional - Saw BOSCH - Free user manual and instructions

USER MANUAL GKS 18V26 Professional BOSCH

2610067395 GKS18V-26L 08-21.qxp_GKS18-25C 8/5/21 12:39 PM Page 12 Licenses Copyright © 2016–2019 STMicroelectronics All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

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endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. Copyright © 2009–2016 ARM LIMITED All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: - Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. - Neither the name of ARM nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2610067395 GKS18V-26L 08-21.qxp_GKS18-25C 8/5/21 12:39 PM Page 23

a. Keep work area clean and well lit. Cluttered or dark areas invite accidents. b. Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Power tools create sparks which may ignite the dust or fumes. c. Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.

2. Electrical safety

a. Power tool plugs must match the outlet. Never modify the plug in any way. Do not use any adapter plugs with earthed (grounded) power tools. Unmodified plugs and matching outlets will reduce risk of electric shock. b. Avoid body contact with earthed or grounded surfaces, such as pipes, radiators, ranges and refrigerators. There is an increased risk of electric shock if your body is earthed or grounded. c. Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock. d. Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool. Keep cord away from heat, oil, sharp edges or moving parts. Damaged or entangled cords increase the risk of electric shock. e. When operating a power tool outdoors, use an extension cord suitable for outdoor use. Use of a cord suitable for outdoor use reduces the risk of electric shock. f. If operating a power tool in a damp location is unavoidable, use a Ground Fault Circuit Interrupter (GFCI) protected supply. Use of an GFCI reduces the risk of electric shock.

a. Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use a power tool while you are tired or under the influence of drugs, alcohol or medication. A moment of inattention while operating power tools may result in serious personal injury. 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. 2610067395 GKS18V-26L 08-21.qxp_GKS18-25C 8/5/21 12:39 PM Page 34 General Power Tool Safety Warnings b. Use personal protective equipment. Always wear eye protection. Protective equipment such as dust mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries. c. Prevent unintentional starting. Ensure the switch is in the off-position before connecting to power source and / or battery pack, picking up or carrying the tool. Carrying power tools with your finger on the switch or energizing power tools that have the switch on invites accidents. d. Remove any adjusting key or wrench before turning the power tool on. A wrench or a key left attached to a rotating part of the power tool may result in personal injury. e. Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations. f. Dress properly. Do not wear loose clothing or jewelry. Keep your hair, clothing and gloves away from moving parts. Loose clothes, jewelry or long hair can be caught in moving parts. g. If devices are provided for the connection of dust extraction and collection facilities, ensure these are connected and properly used. Use of dust collection can reduce dust- related hazards. h. Do not let familiarity gained from frequent use of tools allow you to become complacent and ignore tool safety principles. A careless action can cause severe injury within a fraction of a second.

4. Power tool use and care

a. Do not force the power tool. Use the correct power tool for your application. The correct power tool will do the job better and safer at the rate for which it was designed. b. Do not use the power tool if the switch does not turn it on and off. Any power tool that cannot be controlled with the switch is dangerous and must be repaired. c. Disconnect the plug from the power source and/or remove the battery pack, if 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. d. Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power tool or these instructions to operate the power tool. Power tools are dangerous in the hands of untrained users. e. Maintain power tools 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. f. Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control. g. Use the power tool, accessories and tool bits etc. in accordance with these instructions, taking into account the working conditions and the work to be performed. Use of the power tool for operations different from those intended could result in a hazardous situation. h. 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.

5. Battery tool use and care

a. 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. b. Use power tools only with specifically designated battery packs. Use of any other battery packs may create a risk of injury and fire. c. 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. d. 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. 2610067395 GKS18V-26L 08-21.qxp_GKS18-25C 8/5/21 12:39 PM Page 45 General Power Tool Safety Warnings e. 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. f. Do not expose a battery pack or tool to fire or excessive temperature. Exposure to fire or temperature above 265 °F may cause explosion. g. Follow all charging instructions and do not charge the battery pack or tool outside the temperature range specified in the instructions. Charging improperly or at temperatures outside the specified range may damage the battery and increase the risk of fire.

a. Have your power tool serviced by a qualified repair person using only identical replacement parts. This will ensure that the safety of the power tool is maintained. b. Never service damaged battery packs. Service of battery packs should only be performed by the manufacturer or authorized service providers. Cutting procedures a. Keep hands away from cutting area and the blade. Keep your second hand on auxiliary handle, or motor housing. If both hands are holding the saw, they cannot be cut by the blade. b. Do not reach underneath the workpiece. The guard cannot protect you from the blade below the workpiece. c. 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. d. Never hold the workpiece in your hands or across your leg while cutting. Secure the workpiece to a stable platform. It is important to support the work properly to minimize body exposure, blade binding, or loss of control. e. Hold the power tool by insulated gripping surfaces, when performing an operation where the cutting tool may contact hidden wiring. Contact with a “live” wire will also make exposed metal parts of the power tool “live” and could give the operator an electric shock. f. When ripping, always use a rip fence or straight edge guide. This improves the accuracy of cut and reduces the chance of blade binding. g. Always use blades with correct size and shape (diamond versus round) of arbor holes. Blades that do not match the mounting hardware of the saw will run off- center, causing loss of control. h. Never use damaged or incorrect blade washers or bolt. The blade washers and bolt were specially designed for your saw, for optimum performance and safety of operation. Kickback causes and related warnings Kickback is a sudden reaction to a pinched, jammed 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 jammed 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 saw misuse and/or incorrect operating procedures or conditions and can be avoided by taking proper precautions as given below: a. Maintain a firm grip with both hands on the saw and position your arms 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. b. When blade is binding, or when interrupting a cut for any reason, release the trigger and hold the saw motionless in Safety Instructions for Circular Saws 2610067395 GKS18V-26L 08-21.qxp_GKS18-25C 8/5/21 12:39 PM Page 56 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. c. When restarting a saw in the workpiece, center the saw blade in the kerf so that the saw teeth are not engaged into the material. If a saw blade binds, it may walk up or kickback from the workpiece as the saw is restarted. d. 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. e. Do not use dull or damaged blades. Unsharpened or improperly set blades produce narrow kerf causing excessive friction, blade binding and kickback. f. 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. g. Use extra caution when sawing into existing walls or other blind areas. The protruding blade may cut objects that can cause kickback. Lower Guard Function a. Check the lower guard for proper closing before each use. Do not operate the saw if the lower guard does not move freely and close instantly. Never clamp or tie the lower guard into the open position. If the saw is accidentally dropped, the lower guard may be bent. Raise the lower guard with the retracting handle and make sure it moves freely and does not touch the blade or any other part, in all angles and depths of cut. b. 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 build-up of debris. c. The lower guard may be retracted manually only for special cuts such as “plunge cuts” and “compound cuts”. Raise the lower guard by the retracting handle and as soon as the blade enters the material, the lower guard must be released. For all other sawing, the lower guard should operate automatically. d. Always observe that the lower guard is covering the blade before placing the 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. a. 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. b. Hold the saw firmly to prevent loss of control. Figures in this manual illustrate typical hand support of the saw. c. 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, remove the battery pack from the saw immediately and do not use until repaired. d. 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. Safety Instructions for Circular Saws Additional Safety Instructions for Circular Saws 2610067395 GKS18V-26L 08-21.qxp_GKS18-25C 8/5/21 12:39 PM Page 67 e. 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. f. Never place your hand behind the saw blade. Kickback could cause the saw to jump backwards over your hand. g. 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. h. 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.

i. Periodically remove the blade, clean the

upper, lower guards and the hub area with kerosene and wipe it dry. Preventive maintenance and properly operating guard will reduce the probability of an accident. j. 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. k. Avoid overheating saw blade tips. Additional Safety Warnings GFCI and personal protection devices like electrician’s rubber gloves and footwear will further enhance your personal safety. 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. 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. Additional Safety Instructions for Circular Saws 2610067395 GKS18V-26L 08-21.qxp_GKS18-25C 8/5/21 12:39 PM Page 78 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) 2610067395 GKS18V-26L 08-21.qxp_GKS18-25C 8/5/21 12:39 PM Page 89 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 Alerts user to read manual. Alerts user to wear eye protection. Alerts user to wear respiratory protection. Alerts user to wear hearing protection. Alerts user to wear eye, respiratory, and hearing protection. 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. Designates Li-ion battery recycling program. 2610067395 GKS18V-26L 08-21.qxp_GKS18-25C 8/5/21 12:39 PM Page 910 Getting to Know Your Saw 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 Circular Saw GKS18V-26L (1) (4) (6) (7) (8) (9) (10) (11) (13) (15)(16)(17)(18) (21) (22) (2)(23) (3) (5) (14) (12) (19) (24) (20) Fig. 1 1 Lock-off release buttons 2 Trigger switch 3 Handle (insulated gripping surface) 4 Battery pack* 5 Battery pack release button 6 Dust port 7 Cutting depth scale 8 Upper guard 9 Lower guard lift lever (Retracting handle) 10 Foot 11 Blade stud 12 Outer washer 13 Blade 14 Lower guard 15 Cut line LED light 16 Cutting line guide notch 0° 17 Cutting line guide notch 45° 18 Bevel scale 19 Bevel adjustment lever 20 Shaft lock button 21 Depth adjustment lever 22 Auxiliary handle (insulated gripping surface) 23 Cover for saw hook* installation location 24 Wrench

• sold separately 2610067395 GKS18V-26L 08-21.qxp_GKS18-25C 8/5/21 12:39 PM Page 1011

• For replacement blades we recommend Bosch Cordless Circular saw blades. Their thin kerf and tooth design deliver the superior speed, quality of cut, and reduce battery drain. Use of standard blades will substantially affect the performance and reduce run-time. Specifications Battery Packs/Chargers Please refer to the battery/charger list, included with your tool. For most up to date battery compatibility, please refer to www.boschtools.com. Intended Use Use this saw only as intended. Unintended use may result in personal injury and property damage. 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. Cutting Masonry/Metal Do not cut metal or masonry with this circular saw. The dust from metal or masonry cutting will cause the lower guard to become sluggish and may not close fully and quickly after cutting these materials. Do not use abrasive wheels. This tool is not intended for usage with metal or masonry cut-off wheels. Do not use Wet Diamond cutting off wheel or water feed devices with this circular saw. Masonry cutting waste will enter the lower guard system, harden and cause the guard to become inoperable. Use of water in masonry cutting applications with an electric circular saw will cause electric shock hazards. This tool is not intended for usage with metal or masonry cut-off wheels. Model number GKS18V-26L Voltage rating 18 V No load speed n

5,000/min Blade* 7-1/4” Blade arbor hole 5/8” (16mm) Round Blade tooth thickness 1/16" (1.6mm)* *minimum 3/64" (1.0 mm) Blade body thickness 0.079" (2.0mm) Maximum Depth of cut at 0° 2-5/8" Depth of cut at 45° 1-7/8" Depth of cut at 50° 1-11/16" Permitted battery temperature during charging +32…+113°F (0…+45C) Permitted ambient temperature during operation and storage -4…+122°F (-20…+50C) Recommended ambient temperature during charging +32…+95°F (0...+35°C) 2610067395 GKS18V-26L 08-21.qxp_GKS18-25C 8/5/21 12:39 PM Page 1112 Saw Assembly Inserting and Releasing Battery Pack Use only Boschbatteries recommendedin the battery/charger list, included withyour tool. Using other types of batteriesmay result in personal injury or propertydamage. Slide charged battery pack 4 into thehousing until the battery pack locks intoposition (Fig. 2).Your tool is equipped with a secondarylocking latch to prevent the battery packfrom completely falling out of the handle,should it become loose due to vibration.To remove the battery pack 4, press thebattery pack release button 5 and slide thebattery pack forward.Press the battery pack release button 5again and slide the battery pack completelyout of tool housing (Fig. 2). Attaching the Blade Use only 7-1/4”(184mm) blade. Useonly blade rated 5000/min (RPM) orgreater. Using blade not designed for thesaw may result in serious personal injuryand property damage.1. Press and hold the shaft lock button 15.Turn blade stud 11 with providedwrench 24 in the direction b and removeblade stud 11 and outer washer 12.Note: the wrench is stored near thebattery compartment (Fig. 2). 2. Make sure the saw teeth and arrow onthe blade point in the same direction asthe arrow on the lower guard.3. Retract the lower guard all the way upinto the upper guard. While retractingthe lower guard, check operation andcondition of the LOWER GUARDSPRING. (4) (14) (13) (11) (24) (12) (25)(26) (15)

Fig. 2 Disconnect battery pack from tool before making any assembly, adjustmentsor changing accessories. Such preventive safety measures reduce the risk ofstarting the tool accidentally.2610067395 GKS18V-26L 08-21.qxp_GKS18-25C 8/5/21 12:39 PM Page 1213

VAC02435mmHOSEBOSCH VH-SERIES HOSE VX1201-1/4"or1-1/2"HOSE Saw Assembly 4. Slide blade 13 through slot in the foot10 and mount it against the inner washer25 on the shaft 26. Be sure the largediameter of the outer washer 12 laysflush against the blade (Fig. 2).5. Reinstall outer washer and tighten bladestud 11 finger tight in the direction a.Press and hold lock button 15 to lockshaft and TIGHTEN BLADE STUDCOUNTER-CLOCKWISE 1/4 TURN WITHTHE WRENCH PROVIDED (Fig. 2).Do not use wrenches with longer handles,since it may lead to over tightening of theblade stud. VARI-TORQUE CLUTCH This clutching action is provided by thefriction of the outer washer 12 against theblade 13 and permits the blade shaft to turnwhen the blade encounters excessiveresistance. When the blade stud 11 isproperly tightened (as described in No. 5 ofAttaching The Blade), the blade will slip whenit encounters ex cessive resistance, thusreducing saw’s tendency to KICKBACK.One setting may not be sufficient forcutting all materials. If ex cessive bladeslippage occurs, tighten the blade stud afraction of a turn more (less than 1/8 turn).OVERTIGHTENING THE BLADE STUDNULLIFIES THE EFFECTIVENESS OF THECLUTCH. Dust Extraction To reduce the risk ofinjury, always positiondust port and vacuum hose so that theydo not interfere with the lower guard, orthe cutting operation at all settings.Be extremely carefulwhen disposing of dust.Materials in fine particle form may beexplosive. Do not throw sawdust on anopen fire. Spontaneous combustion, intime, may result from the mixture of oil orwater with dust particles. DUST PORT The dust port 6 swivels so that dust can bedirected in the desired direction (Fig. 3). DUST BAG (sold separately) Using Dust Bag – To attach the empty dustbag, press-fit its coupler end into the saw'sdust port 6 (Fig. 3).Cleaning Dust Bag – After the dust bag is2/3 to 3/4 full, remove it from the saw.Bring the bag to a proper container andpull open the zipper located on the bottomof the bag. Hold the bag by the coupler end Fig. 3 dUST BAG 2610067395 GKS18V-26L 08-21.qxp_GKS18-25C 8/5/21 12:39 PM Page 1314 Saw Assembly Brake Action Let the saw blade come to a complete stop before setting the tool down. The brake action of this circular saw is not intended as a safety feature. Unintended contact with a rotating saw blade can cause property damage and/or personal injury. Know the charge state of your battery. The electric braking action is initiated ONLY by the release of the trigger switch and in a tool that has power available. When electrical power is lost due to a discharged battery or other causes, the electric brake will not operate and the motor will gradually slow down. Unexpected run down time may cause property damage and/or personal injury. Your circular saw is equipped with an automatic electric brake, which is designed to stop the saw blade from spinning in approximately two (2) seconds after you release the trigger switch. This feature helps improve jobsite productivity. Braking starts once the power is turned off. The brake requires a charged battery to function. Stopping time will vary depending on, among other factors, saw blade used, and number of actuations. The electric brake of your circular saw has been designed for a high degree of reliability, but unexpected circumstances such as contamination or failure of the motor’s components can cause the brake to not activate. If the tool operates but the brake does not consistently stop the blade in about 2 seconds, DO NOT use the circular saw and have it serviced by a Bosch Factory Service Center or Bosch authorized service facility. and shake it vigorously until all the dust and debris fall from it. Close zipper and reattach the bag. NOTE: Clean the bag at the end of the cutting session and before transporting or storing the saw.

CONNECTION TO VACUUM CLEANER /

DUST EXTRACTOR Connect the vacuum cleaner hose to the dust port (Fig. 3). - Bosch VH-series hoses - The VX120 hose adapter is required (included with VH- series hoses). - Other 35mm and 22mm hoses, such as the Bosch VAC-series hoses - Connect hose directly to the tool. - Common 1¼" or 1½" hoses - The Bosch VAC024 adapter is required (sold separately). Connect the vacuum hose to a vacuum cleaner. The vacuum cleaner must be suitable for the material being worked on. When vacuuming dry dust that is especially detrimental to health or carcinogenic, use a special vacuum cleaner / dust extractor. 2610067395 GKS18V-26L 08-21.qxp_GKS18-25C 8/5/21 12:39 PM Page 1415 Depth Adjustment Adjust the cutting depth so that no more than one tooth is visible below the work piece. Excessive blade exposure below the workpiece could result in personal injury and/or property damage. The depth adjustment system should be not used to change the depth while the saw is in operation, or for plunge cutting. If blade adjustment shifts while cutting, it may cause binding and kickback. To adjust the cutting depth follow these instructions (Fig. 4): A. Disconnect battery pack 4 from tool. B. Loosen the depth adjustment lever 21 located on the right side of the tool. C. Hold the foot 10 down with one hand and raise or lower saw by the handle 3. - For a smaller cutting depth, pull the saw away from the foot 10; - for a deeper cutting depth, push the saw toward the foot 10. The cutting depth scale 7 has both inch and metric scales. D. Tighten the depth adjustment lever at the desired depth setting. Note: Not more than one tooth length of the blade should extend below the material to be cut, for minimum splintering (Fig. 5). Operating Instructions

Not more than one tooth length should penetrate wood for minimum splintering Fig. 5 (7) (21)(4)(10) Fig. 4 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. 2610067395 GKS18V-26L 08-21.qxp_GKS18-25C 8/5/21 12:39 PM Page 1516 90° Cutting Angle Check A. Disconnect battery pack 4 from tool. B. Set foot 10 to maximum depth of cutsetting. C. Loosen bevel adjustment lever 19, set to0° on bevel scale 18, retighten lever 19(Fig. 5). D. Check for 90° angle between the blade13 and bottom plane of foot 10 with asquare (Fig. 6). If necessary, makeadjustments by turning the smallalignment screw from bottom side offoot 10 with a 2.5 mm allen wrench [notincluded] (Fig. 6). Bevel Adjustment A. Disconnect battery pack from tool. B. Loosen the bevel adjustment lever 19. C. Align to desired angle on the bevel scale18. The foot can be adjusted up to 50°. D. Tighten lever 19 (Fig. 5).Because of the increased amount of bladeengagement in the work and decreasedstability of the foot, blade binding mayoccur. Keep the saw steady and the footfirmly on the workpiece. Cutting Line Guide Notches The marked notches and at the front of thefootplate indicate the approximate line ofthe cut (Fig. 7).• For a non-beveled cut, use 0° notch.• For 45° bevel cuts, use 45° notch.• To ensure minimum splintering on thegood side of the material to be cut, facethe good side down.• Make sample cuts in scrap lumber toverify actual line of cut. This will behelpful because of the variety of bladetypes and thicknesses that are available.• Use LEFT side of notch when the part ofthe workpiece that is to the right of theblade is the scrap piece (Fig. 7a).• Use RIGHT side of notch when the partof the workpiece that is to the left of theblade is the scrap piece (Fig. 7b). Operating Instructions

Fig. 7b ALIGNMENT SCREw2610067395 GKS18V-26L 08-21.qxp_GKS18-25C 8/5/21 12:39 PM Page 1617 Fitting the Hanging Hook (sold separately) (see figures 8–9) Squeeze the cover 23 at the sides and remove it. Mount the hanging hook and secure it with two screws. The hanging hook can be swiveled. The screws should be tightened with 16 in-lbs (1,8-2 Nm). Lock-off Release Buttons The Lock-off release buttons are designed to prevent accidental starts. To operate, press the release button 1 (Fig. 1) with your thumb on either side of handle to disengage the lock, then pull the trigger 2 (Fig. 1). When the trigger is released the button will engage the safety switch automatically, and the trigger will no longer operate. Switch When starting the tool, hold it with both hands. The torque from the motor can cause the tool to twist. To turn tool on, press the lock-off release button 1 (Fig. 1) with your thumb on either side of handle to disengage the lock, then pull the trigger 2 (Fig. 1). 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. All Cuts Always be sure either hand does not interfere with the free movement of the lower guard. After completing a cut and the trigger has been released, be aware of the nec es sary time it takes for the blade to come to a com - plete 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 ex posures that exist in both the upper and lower guard areas.

• 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.

• Maintain a firm grip and operate the switch with a decisive action. Never force the saw. Use light and continuous pressure.

• 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 ten den cy to tear and lift. Advancing the saw slowly minimizes this effect. For a finished cut, a cross cut blade or miter blade is rec om mended. Operating Instructions (23) 90° 90° Fig. 8 Fig. 9 HANGING HOOK 2610067395 GKS18V-26L 08-21.qxp_GKS18-25C 8/5/21 12:39 PM Page 1718 Plunge Cuts 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. The depth adjustment system should be not used to change the depth while the saw is in operation, or for plunge cutting. If blade adjustment shifts while cutting, it may cause binding and kickback. As blade starts cutting the ma terial, release the lower guard immediately. When the foot rests flat on the surface being cut, proceed cutting in forward direction to end of cut. Allow blade to come to a complete stop before 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. Disconnect battery pack from tool before making adjustments. Set depth adjustment according to material to be cut. Reattach battery pack to the saw. Tilt saw forward with cutting guide notch lined up with the line you’ve drawn. Raise the lower guard, using lift lever 9 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 10 as the hinge point. Cutting Large Sheets Large sheets and long boards sag or bend, depending on support. If you attempt to cut without leveling and properly supporting the piece, the blade will tend to bind, causing KICKBACK 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 the broadest 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. Operating Instructions

Fig. 10 Fig. 12 RIGHT Fig. 11 wRONG 2610067395 GKS18V-26L 08-21.qxp_GKS18-25C 8/5/21 12:39 PM Page 1819 Rip Cuts After attaching or adjusting the rip fence, be sure the rip fence does not touch or interfere with the free movement of the lower guard or contact the saw blade. 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. Narrow rip cuts are easy to do with a rip fence (Fig. 13). To attach optional rip 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. The GKS18V-26L's auxiliary handle is designed to allow lumber as thick as 2x ("2-by") to be used as a guide. Fig. 14 RIP BOARd GUIdE Fig. 13 Operating Instructions RIP FENCE KNOB 2610067395 GKS18V-26L 08-21.qxp_GKS18-25C 8/5/21 12:39 PM Page 1920 Maintenance Service

ABLE 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 recom mend that all tool service be performed by a Bosch Factory Service Center or Authorized Bosch Service Station. 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. 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 Certain cleaning agents and solvents damage plastic parts. Some of these are: gasoline, car bon tetrachloride, chlorinated cleaning solvents, ammonia and household detergents that contain ammonia. 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. 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. Care of Blades Blades become dull even from cutting regular lumber. If you find yourself forcing the saw forward to cut instead of just guiding it through the cut, chances are the blade is dull or coated with wood pitch. When cleaning gum and wood pitch from blade, remove the battery from the saw and remove the blade. Remember, blades are designed to cut, so handle carefully. Wipe the blade with kerosene or similar solvent to remove the gum and pitch. Unless you are experienced in sharpening blades, we recommend you do not try. To avoid accidents, always disconnect battery pack from tool before cleaning or performing any maintenance. 2610067395 GKS18V-26L 08-21.qxp_GKS18-25C 8/5/21 12:39 PM Page 2021 Accessories and Attachments The use of any other attachments or acces so ries not specified in this manual may create a hazard. Store accessories in a dry and temperate environment to avoid corrosion and deterioration. Bosch No. Description Included Sold Separately Accessories DCBL724 7¼" (184mm) thin kerf 24 tooth carbide blade ● – Attachments 2610041761 Carry Bag ● ● GKSRIP Rip Fence – ● 160541101V Dust Bag – ● Various Vacuum Hoses – ● VAC024 Vacuum Hose Adapter for 1/14" and 1-1/2" Hoses – ● GKSLSH Rafter Hook Attachment