OS50VC Professional - Sander BOSCH - Free user manual and instructions

USER MANUAL OS50VC Professional BOSCH

Versión en español Ver la página 26 Call Toll Free for Consumer Information and Service Locations Pour obtenir des informations et les adresses de nos centres de service après-vente, appelez ce numéro gratuit Llame gratis para obtener información para el consumidor y ubicaciones de servicio OS50VC 2610051954.qxp_OS50VC 8/16/18 12:47 PM Page 1-2- Work area safety Keep work area clean and well lit. Cluttered or dark areas invite accidents. Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Power tools create sparks which may ignite the dust or fumes. Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control. Electrical safety Power tool plugs must match the outlet. Never modify the plug in any way. Do not use any adapter plugs with earthed (grounded) power tools. Unmodified plugs and matching outlets will reduce risk of electric shock. Avoid body contact with earthed or grounded surfaces, such as pipes, radiators, ranges and refrigerators. There is an increased risk of electric shock if your body is earthed or grounded. Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock. Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool. Keep cord away from heat, oil, sharp edges or moving parts. Damaged or entangled cords increase the risk of electric shock. When operating a power tool outdoors, use an extension cord suitable for outdoor use. Use of a cord suitable for outdoor use reduces the risk of electric shock. If operating a power tool in a damp location is unavoidable, use a Ground Fault Circuit Interrupter (GFCI) protected supply. Use of an GFCI reduces the risk of electric shock. Personal safety Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use a power tool while you are tired or under the influence of drugs, alcohol or medication. A moment of inattention while operating power tools may result in serious personal injury. Use personal protective equipment. Always wear eye protection. Protective equipment such as dust mask, non-skid safety shoes, hard 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 potentialpersonal injury hazards. Obey all safety messages that follow thissymbol to avoid possible injury or death.DANGER indicates a hazardous situation which, if not avoided, willresult in death or serious injury.WARNING indicates a hazardous situation which, if not avoided, couldresult in death or serious injury.CAUTION indicates a hazardous situation which, if not avoided, couldresult in minor or moderate 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. 2610051954.qxp_OS50VC 8/16/18 12:47 PM Page 2-3-

at, 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 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. 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, 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. Store idle power tools out of the reach of children and do not allow persons unfamiliar

ith 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. 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. Preventive maintenance performed by unauthorized per so n nel may result in misplacing of internal wires and components which could cause serious hazard. We recommend that all tool service be performed by a Bosch Factory Service Center or Autho rized Bosch Service Station. 2610051954.qxp_OS50VC 8/16/18 12:47 PM Page 3-4- 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. 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 Warnings Unplug the sander before changing accessories. Accidental start-ups may occur

f sander is plugged in while changing an accessory. 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. Your tool is equipped with a dust canister; empty it frequently after completion of sanding and before storing the sander. Be extremely careful of dust disposal, materials in fine particle form may be explosive. Do not throw sanding dust on an open fire. Combustion from mixture of varnishes, lacquers, polyurethane, oil or water with dust particles can occur if there is a static discharge, spark introduced in the box, or excessive heat. Always wear eye protection and a dust mask for dusty applications and when sanding overhead. Sanding particles can be absorbed by your eyes and inhaled easily and may cause health complications. Use special precautions when sanding chemically pressure treated lumber, paint that may be lead based, or any other materials that may contain carcinogens. A suitable breathing respirator and protective clothing must be worn by all persons entering the work area. Work area should be sealed by plastic sheeting and persons not protected should be kept out until work area is thoroughly cleaned. Do not wet sand with this sander. Liquids entering the motor housing is an electrical shock hazard. Do not use sandpaper intended for larger sanding pads. Larger sandpaper will extend beyond the sanding pad causing snagging, tearing of the paper or kick-back. Extra paper extending beyond the sanding pad can also cause serious lacerations. Safety Rules for Orbital Sanders 2610051954.qxp_OS50VC 8/16/18 12:47 PM Page 4-5- 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. Symbols Symbol Designation / Explanation V Volts (voltage) 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) 2610051954.qxp_OS50VC 8/16/18 12:47 PM Page 5-6- Symbols (continued) IMPORTANT: Some of the following symbols may be used on your tool. Please study them

nd learn their meaning. Proper interpretation of these symbols will allow you to operate the tool better and safer. 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. 2610051954.qxp_OS50VC 8/16/18 12:47 PM Page 6-7- Functional Description and Specifications Disconnect the plug from the power source before making any assembly, adjustments or changing accessories. Such preventive safety measures reduce the risk of starting the tool accidentally. FIG. 1 Orbital Sander Model number OS50VC Voltage rating 120 V 60Hz Pad size 4 1/2" x 11" (1/2 sheet) VARIABLE SPEED DIAL RUBBERIZED GRIP FRONT HANDLE SCREW (5 MM WRENCH) BACKING PAD REAR CLAMP MICROFILTER DUST CANISTER VIBRATION CONTROL SUSPENSION SYSTEM Suspension system separates housing and grip areas above this point from motor housing and sanding mechanism for low vibration and maximum comfort SHEETLOC SUPREME™

FRONT CLAMP AIR VENTS REAR HANDLE CORD RUBBERIZED GRIP NOTE: For tool specifications refer to the nameplate on your tool. 2610051954.qxp_OS50VC 8/16/18 12:47 PM Page 7Always disconnect the plug from the power source before attaching or removing abrasive sheets.

ATTACHING REGULAR SANDING SHEETS

USING SHEETLOC™ SYSTEM

The Bosch-Exclusive Sheetloc Supreme™ Sandpaper Attachment System pulls regular abrasive sheets (sandpaper) flat and tight before clamping to prevent wrinkles, creases and tears for optimal sanding performance and longer paper life. Patents Pending

1. While pressing the rear clamp release lever,

insert the abrasive sheet (grit side down) between the rear clamp and base plate. Make sure that sheet is centered under the rear clamp and inserted deep enough to be fully under the rear clamp, then release the lever (Fig. 2).

3. Wrap the abrasive sheet around the length

of the pad and slide free end of sheet under the front clamp’s black bar. Flatten the abrasive sheet by pushing it as far to the back as possible, then the move the front clamp lever to the base plate and lock it in place. This action pulls the abrasive taut while clamping, which prevents wrinkles, creases and tears (Fig. 4).

REMOVING REGULAR SANDING SHEETS

Simply press the rear clamp lever and release the front clamp lever to release the abrasive sheet (Fig. 2 & 3).

REPLACEMENT OF BACKING PAD

The backing pad can be replaced if needed. Remove the six M4 screws and remove the worn pad. Position the new pad over the screw holes, insert the screws and tighten (Fig. 5).

ATTACHING PSA “STICK-ON”

ABRASIVE SHEETS Your sander can also be used with PSA- backed “stick-on” abrasive sheets (sandpaper), which have pressure sensitive adhesive.

1. Peel protective sheet from the back of PSA

2. Align PSA sheet with backing pad and

press firmly in place.

• Make sure that SheetLoc™ System’s front clamp lever is latched, even when PSA abrasive sheets are used.

• Remove PSA sheets soon after completing each sanding operation in order to prevent the adhesive from creating a hardened bond with the backing pad.

REMOVING PSA ABRASIVE SHEETS

Attempting to remove a cold PSA sanding sheet from pad will likely damage the backing pad. If PSA paper is accidentally left on the pad, sand for a few minutes to soften the adhesive backing, then lift an edge of the PSA sheets with your fingernail and peel it off the backing pad. PUNCH PLATE After the paper has been installed, it will be necessary to punch holes into the paper using the punch plate provided with your sander. Align sander base with punch plate and push down on sander until punch plate pierces the paper. Then remove punch plate from sander (Fig. 6).

The integral dust extraction system collects sanding dust in canister supplied with your sander. For maximum efficiency, the dust canister should be emptied frequently during operation. Your tool is equipped with a dust canister; empty it frequently after completion of sanding and before storing the sander. Be extremely careful of dust disposal, materials in fine particle form may be explosive. Do not throw sanding dust on an open fire. Combustion from mixture of varnishes, lacquers, polyurethane, oil or water with dust particles can occur if there is a static discharge, spark introduced in the box, or excessive heat.

REMOVING AND INSTALLING

DUST CANISTER To remove dust canister: Twist the dust canister and simply pull away from the tool (Fig. 7). To install dust canister: align dust port with hole in canister and push canister onto tool until it locks into place (Fig. 8). Dust Collection FIG. 7

CLEANING AND EMPTYING THE

DUST CANISTER The dust canister is transparent which will allow you to easily see when empting and cleaning is requires. To empty dust the canister: screw off and remove microfilter from the dust canister. Empty dust canister (Fig. 9). It is recommended to loosen dust from the microfilter by gently striking it against a solid surface (Fig. 10). Knock excess dust out of the microfilter, or remove dust with your fingers or a soft brush. You may notice that all the dust may not come out of the canister. This will not affect sanding performance but will reduce dust collection

fficiency. NOTE: Do not wash the microfilter with soap and water. Dust may become more firmly lodged in the pores, which will reduce dust collection, and damage the micro filter. To ensure optimum dust extraction, empty and clean the canister and microfilter frequently. FIG. 9 FIG. 10

ATTACHING A VACUUM CLEANER

Dust collection can also be achieved by attaching the tool to a vacuum cleaner / dust extractor, hose and adapter, if necessary (all sold separately).

1. Attach the hose to the vacuum cleaner /

2. Attach the hose to the tool’s dust port in one

of the following ways (Fig. 11): - 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 1-1/4” or 1-1/2” hoses - The Bosch VAC024 adapter is required. SUCTION CONTROL When using a vacuum hose with this sander the amount of suction can be adjusted by sliding the hose over or off the open slot in the hose port area on the sander. The vacuum cleaner must be suitable for the material being sanded. When vacuuming dry dust that is especially detrimental to health or may be carcinogenic, use a special vacuum cleaner. When sanding on vertical surfaces, hold the power tool in such a manner that the vacuum hose faces downward. DUST CANISTER MICROFILTER MICROFILTER 2610051954.qxp_OS50VC 8/16/18 12:47 PM Page 10-11-

TRIGGER "ON-OFF" SWITCH

To turn the 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 (Fig. 1). See START OF SANDING on page 12. "LOCK-ON" BUTTON The "Lock-ON" button, located near the trigger allows for continuous operation at maximum OPM without holding the trigger (Fig. 1). TO LOCK TRIGGER "ON": squeeze trigger, depress button and release trigger. TO UNLOCK THE TRIGGER: squeeze trigger and release it without depressing the "Lock- ON" button. If the “Lock-ON” button is continuously being depressed, the trigger can not be released.

Your sander is equipped with a variable speed dial (Fig. 1). The sander's orbital speed can be preset by rotating the dial to any of six positions from 1 (8000 OPM) to 6 (11000 OPM). In general,

• Higher-speeds are used to achieve results more quickly.

• Lower speeds are especially appropriate when sanding soft materials or thin veneers to minimize the possibility of over sanding. The best results will be obtained by sanding a test sample of the workpiece material and determining the best combination of sanding speed and sanding sheet (sanding paper). FRONT HANDLE Your sander is equipped with a removable front handle when sanding in tight quarters. To remove handle, remove screw with 5 mm hex wrench. Always reinstall handle for normal operation (Fig. 1). Depending on the task, you may grip the rear handle alone, the rear handle and the front handle, or the rear handle and the top of the ergonomically contoured soft grip motor housing, which is designed for that purpose. ABRASIVE SHEETS (SANDPAPER) Aluminum oxide, silicon carbide, or other synthetic abrasives are recommended for power sanding use. Natural abrasives, such as flint or garnet sheet are too soft for economical use in power sanding. For best results, use Bosch abrasive sheets: The uniform spacing between grains minimizes filling or loading. The high quality aluminum oxide sheet with Operating Instructions SUCTION CONTROL SLOT DUST PORT VAC024 BOSCH VAC- SERIES HOSE BOSCH VH- SERIES HOSE VX120 1-1/4”

1-1/2” HOSE FIG. 11 2610051954.qxp_OS50VC 8/16/18 12:47 PM Page 11-12- heavy backing cuts faster and lasts longer. The following are recommended abrasive sheets and applications: Additional abrasive sheets can be conveniently cut from large-size commercially available sheets (standard size 9" x 11" (228 x 280mm). Cut into two pieces of equal size. Choose the proper grit for the job.

With the workpiece firmly secured, first place the sander’s pad on the work surface, then switch the tool on. DO NOT start the tool and bring it up to speed before applying to the work DO NOT apply excessive pressure when

witch the tool on (or at any other time) Either method will likely create swirl marks. Applying excessive pressure upon start-up will also shorten the life of the switch SANDING TIPS Bosch orbital sanders are designed to produce exceptional finishes on wood surfaces, speed stock removal, or to remove lacquer, varnish, and other coated finishes. Orbital sanding provides fast, smooth final finishes. And this model can sand flush on all three sides of the tool to get in tight places typical of cabinets, desks and shelving.

• This sander’s even weight distribution and the prevention of paper slippage by the SheetLoc system virtually eliminate any benefit from pressing on the sander. Excessive pressure to the sander may result in an uneven sanding job and premature grit wear. Constant and excessive pressure can cause overheating and possible damage to the motor, as well as premature wear out of the pad.

• It's usually best to work in strokes that parallel the grain, using some lateral motion so the main strokes are overlapped as much as 75%.

• If the surface is rough, start sanding with a coarse grit, then medium, and then finish with a fine or extra-fine grit. This procedure will vary with different types of materials and work.

• Continue to sand with each grit until the surface looks uniform.

• When going from one grit size to a finer size, do not skip more than two grit sizes.

• To remove the greatest amount of stock, use a coarse grit and move the sander steadily over the entire surface against the grain as well as with the grain. DO NOT REMAIN IN ONE SPOT TOO LONG. It may remove too much material and uneven sanding will result.

• Sanding with the grain of the wood gives the smoothest final finish.

Remove the sander from the work before turning the switch “OFF”. Operating in this manner will prolong switch and motor life and will greatly increase the quality of your work.

• Do not store tool with PSA sheets on pad, as sanding creates heat, which will cause an FIG. 12 Applications Grit Wood For preliminary sanding of rough wood, unplaned boards. Coarse 40, 60 For mid-stage sanding and smoothing of small irregularities. Medium 80, 100, 120 For finish and fine sanding speed and sanding sheet (sandpaper) Fine 180, 240, 320, 400 Paint/enamels and primers and fillers For removing paint. Coarse 40, 60 For sanding primer. Medium 80, 100, 120 For final sanding of primers between coats. Fine 180, 240,

2610051954.qxp_OS50VC 8/16/18 12:47 PM Page 12Service Preventive maintenance performed by unauthorized per so n nel may result in misplacing of internal wires and components which could cause serious hazard. We recommend that all tool service be performed by a Bosch Factory Service Center or Autho rized Bosch Service Station. TOOL LUBRICATION Your Bosch tool has been properly lubricated and is ready to use. It is recommended that tools with gears be regreased with a special gear lubricant at every brush change. CARBON BRUSHES The brushes and commutator in your tool have been engineered for many hours of dependable service. To maintain peak efficiency of the motor, we recommend every two to six months the brush es be examined. Only genuine Bosch replace ment brushes specially designed for your tool should be used. BEARINGS Bearings which become noisy (due to heavy load or very abrasive material cut ting) should be replaced at once to avoid overheating or motor failure. Cleaning To avoid accidents always disconnect the tool from the power supply before cleaning or performing any maintenance. Ventilation openings and switch levers must be kept clean and free of foreign matter. Do not attempt to clean by inserting pointed objects through openings. Certain cleaning agents and solvents damage plastic parts. Some of these are: gasoline, carbon tetrachlo ride, chlo rinated cleaning solvents, ammonia and house hold detergents that contain ammonia. Maintenance Extension Cords If an extension cord is necessary, a cord with adequate size conductors that is capable of carrying the current necessary for your tool must be used. This will prevent excessive voltage drop, loss of power or overheating. Grounded tools must use 3-wire extension cords that have 3-prong plugs and receptacles. NOTE: The smaller the gauge number, the higher the cord capacity. RECOMMENDED SIZES OF EXTENSION CORDS120 VOLT ALTERNATING CURRENT TOOLSTool’s Ampere RatingCord Size in A.W.G. Wire Sizes in mm Cord Length in Feet Cord Length in Meters25 50 100 15015 30 60 120 3-6 6-8 8-10 10-1212-16

adhesive bond between the paper and the

ad to harden when paper and pad cool down. (See REMOVING PSA ABRASIVE SHEETS

IMITED 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

arranty 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

OSCH 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,

ANDING BELTS, GRINDING WHEELS AND OTHER RELATED ITEMS.