Rikon 80-808 Professional Low Speed Grinder User Manual
Contents
1. NOlLdliMoS4d CN 0 LO ONO ON AA Page 17 TROUBLESHOOTING TO PREVENT INJURY TO YOURSELF or damage to the Bench Grinder turn the switch to the OFF position and unplug the power cord from the electrical receptacle before making any adjustments PROBLEM LIKELY CAUSE S SOLUTION S Machine not plugged in Power switch in OFF position Plug power cord into electrical receptacle Lift switch to ON position Motor does not run Motor does not have full power Motor stalls or runs slow Fuses blow or circuit breaker Power switch or cord is faulty Fuse or circuit breaker are open Material wedged between wheel and tool rest or guard Incorrect line voltage Motor capacitor has failed Motor is overloaded 2 Poor air circulation around motor Overuse in high ambient temperature room Motor is overloaded 2 Incorrect line voltage Motor capacitor has failed Motor is overloaded Overloaded electrical circuit Undersized fuse or circuit breaker Defective cord plug or switch Replace switch or power cord Overloaded electrical circuit Turn grinder off unplug power cord and remove material Have a qualified electrician check circuit for proper voltage Replace motor capacitor Reduce pressure on work piece Remove any blockage around motor Reduce runtime to 20 minutes or less Reduce pressure on work p2. A CAUTION ALWAYS WEAR EYE PROTECTION Everyday eyeglasses are NOT safety glasses ALWAYS wear Safety Goggles that comply with ANSI standard Z87 1 when operating power tools Page 13 OPERATING THE BENCH GRINDER USING THE WHEEL DRESSER Fig J A Wheel Dresser not included is to be used to remove any forward wobble buildup up of material on the grinding wheel remove imperfections and make the corners of the grinding wheel square See Figure J DO NOT use the Wheel Dresser on Wire Wheels not included if they are installed on the grinder 1 Adjust tool rest A until it is in the flat horizontal position as shown and 1 16 away from the grinding wheel 2 Turn ON the Bench Grinder Let the grinding wheel come up to a steady speed for one minute 3 After the grinding wheel has gotten to a steady speed place the Wheel Dresser head B flat on the Tool Rest 4 Firmly hold on to the handle of the Wheel Dresser 5 Move the Wheel Dresser forward until it makes light contact with the grinding wheel C After contact has been made slide the Wheel Dresser side to side across the Tool Rest to dress the grinding wheel until the edges of the grinding wheel are square and the surface is clean 6 After the dressing the grinding wheel turn OFF the Bench Grinder and let the grinding wheel come to a complete stop Allow the grinding wheel to cool down for a period of 10 min
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4. SAFETY INSTRUCTIONS 14 REMOVE ALL MAINTENANCE TOOLS from the immediate area prior to turning ON the Bench Grinder 15 USE ONLY RECOMMENDED ACCESSORIES Use of incorrect or improp er accessories could cause serious injury to the operator and cause damage to the tool If in doubt check the instruction manual that comes with that particular accessory 16 NEVER LEAVE A RUNNING TOOL UNATTENDED Turn the power switch to the OFF position DO NOT leave the tool until it has come to a complete stop 17 DO NOT STAND ON A TOOL Serious injury could result if the tool tips over or you accidentally contact the tool 18 DO NOT store anything above or near the tool where anyone might try to stand on the tool to reach it 19 MAINTAIN YOUR BALANCE DO NOT extend yourself over the tool Wear oil resistant rubber soled shoes Keep floor clear of debris grease and wax 20 MAINTAIN TOOLS WITH CARE Always keep tools clean and in good working order Keep all blades and tool bits sharp dress grinding wheels and change other abrasive accessories when worn 21 EACH AND EVERY TIME CHECK FOR DAMAGED PARTS PRIOR TO USING THE TOOL Carefully check all guards to see that they operate properly are not damaged and perform their intended functions Check for alignment binding or breaking of moving parts A guard or other part that is damaged should be immediately repaired or replaced 22 DO NOT OPERATE TOOL WHILE TIRED
5. OR UNDER THE INFLUENCE OF DRUGS MEDICATION OR ALCOHOL 23 SECURE ALL WORK Use clamps or jigs to secure the work piece This is safer than attempting to hold the work piece with your hands 24 STAY ALERT WATCH WHAT YOU ARE DOING AND USE COMMON SENSE WHEN OPERATING A POWER TOOL A moment of inattention while operating power tools may result in serious personal injury 25 ALWAYS WEAR A DUST MASK TO PREVENT INHALING DANGEROUS DUST OR AIRBORNE PARTICLES including wood dust crystalline silica dust and asbestos dust Direct particles away from face and body Always operate tool in well ventilated area and provide for proper dust removal Use dust collection system wherever possible Exposure to the dust may cause serious and permanent respiratory or other injury including silicosis a serious lung disease cancer and death Avoid breathing the dust and avoid prolonged contact with dust Allowing dust to get into your mouth or eyes or lay on your skin may promote absorption of harmful material Always use properly fitting NIOSH OSHA approved respiratory protection appropriate for the dust exposure and wash exposed areas with soap and water 26 USE A PROPER EXTENSION CORD IN GOOD CONDITION When using an extension cord be sure to use one heavy enough to carry the current your product will draw The table on page 8 shows the correct size to use depending on cord length and nameplate amperage rating If in doubt use
6. GUARDS REMOVED 8 KEEP THE TOOL RESTS FIRMLY IN PLACE AND TIGHTENED Use them to safely position your material for grinding 9 ALWAYS USE THE SUPPLIED WHEEL DRESSER TO RESURFACE THE FACE OF THE GRINDING WHEEL 10 DRESS THE GRINDING WHEEL OFTEN This will keep the wheel surface flat and free of nicks and residue glaze 11 REMOVE ADJUSTING KEYS AND WRENCHES Form habit of checking to see that keys and adjusting wrenches are removed from grinder before turning it on 12 ALLOW THE GRINDER TO ATTAIN FULL SPEED BEFORE BEGINNING WORK 13 NEVER STOP THE GRINDER BY FORCING MATERIAL INTO THE WHEEL Let the grinder stop rotating on its own 14 SECURE THE BENCH GRINDER to a stand or workbench to prevent sliding or tipping during use See page 12 15 FREQUENTLY clean grinding dust from inside of the guards and beneath the grinder 16 NEVER GRIND SMALL STOCK without it being properly supported on the tool rests and held by pliers or clamps SAFETY INSTRUCTIONS 17 DO NOT FORCE THE TOOL to perform an operation for which it was not designed It will do a safer and higher quality job by only performing operations for which the tool was intended 18 ADDITIONAL INFORMATION regarding the safe and proper operation of this product is available from Power Tool Institute 1300 Summer Avenue Cleveland OH 44115 2851 www powertoolinstitute org National Safety Council 1121 Spring Lake Drive Itasca IL 60143 3201
7. lay them on a clean work surface 2 Remove any protective materials and coatings from all of the parts and the bench grinder The protective coatings can be removed by spraying WD 40 on them and wiping it off with a soft cloth This may need to be redone several times before all of the protective coatings are removed completely CAUTION DO NOT use acetone gasoline or lacquer thinner to remove any protective coatings 3 Compare the items to Figure C verify that all items are accounted for before discarding the shipping box dl WARNING if any parts are missing do not attempt to plug in the power cord and turn ON the Bench Grinder The Bench Grinder can only be turned ON after all the parts have been obtained and installed correctly The following items are provided in the shipping box A B C D E F G H l Grinder not shown Eye shield assembly plain 2 Eye shield mounting rod left Eye shield mounting rod right Spark arrestors 2 Tool rest support left Tool rest support right Phillips screw assembly 2 Eye shield assembly 2 5x magnification 2 OXOOZE T XX Spring vvasher D6 2 Flat vvasher D6 4 Eye shield bracket mounting knob M6 30 2 Eye shield locking knob M5 15 2 Tool rest left Tool rest right Flat washer D8 4 Hexagon bolt M8 12 4 Tool rest locking knob M6 45 2 NOTE Full Parts Diagram and Parts List are l
8. require frequent dressing and shorten the life of the wheel A WARNING To avoid serious injury never grind on the sides of the grinding wheels 6 Never force the work piece against the grinding wheel especially if the wheel is cold Apply the work piece slowly allowing the grinding wheel an opportunity to warm up This will minimize the chance of wheel breakage Do not grind using the sides of the grinding wheels Do not apply coolant directly to the grinding wheel 7 If the work piece gets too hot the operator may place the hot end into water in a quench tray to cool it 8 After completing the grinding operations turn OFF the Bench Grinder by pushing down on the Power Switch di CAUTION It will take a few minutes for the grinding wheels to come to a complete stop 9 Unplug the Bench Grinder from the power source NOTE To prevent unauthorized use of the Bench Grinder the power switch has a removable locking key With the power switch in the OFF position pull the locking key out The Bench Grinder cannot be turned ON with the key removed Insert the locking key to resume grinding operations WARNING FIRE AND EXPLOSION HAZARD DO NOT connect a Dust Collector that is designed for wood dust shavings or other flammable materials to the grinder Hot sparks from the grinder may ignite this material Use only a Collector designed for capturing metal dust and swarf
9. the next heavier gauge The smaller the gauge number the larger diameter of the extension cord If in doubt of the proper size of an extension cord use a shorter and thicker cord An undersized cord will cause a drop in line voltage resulting in a loss of power and overheating USE ONLY A 3 WIRE EXTENSION CORD THAT HAS A 3 PRONG GROUNDING PLUG AND A 3 POLE RECEPTACLE THAT ACCEPTS THE TOOL S PLUG Page 5 SAFETY INSTRUCTIONS SPECIFIC SAFETY INSTRUCTIONS FOR BENCH GRINDERS The operation of any grinder or power tool can result in debris being thrown into your eyes which can result in severe and per manent eye damage ALWAYS WEAR EYE PROTECTION Everyday eyeglasses are NOT safety glasses ALWAYS wear Safety Goggles that comply with ANSI standard Z87 1 when operating power tools Basic precautions should always be followed when using your bench grinder To reduce the risk of injury electrical shock or fire comply with the safety rules listed below 1 ALWAYS USE THE EYE SHIELDS AND WHEEL GUARDS provided with the grinder 2 REPLACE A CRACKED OR DAMAGED GRINDING WHEEL IMMEDIATELY A damaged wheel can discharge debris at a high velocity towards the operator Carefully handle the grinding wheels since they are abrasive Prior to replacing a grinding wheel check it for cracks DO NOT remove the blotter or label on both sides of the grinding wheel Tighten the spindle nut just enough to hold the grinding wheel firmly
10. to the Bench Grinder DO NOT over tighten the nut Excessive clamping force can damage the grinding wheel Only use the wheel flanges provided with the grinder When selecting a replacement grinding wheel use only properly sized wheels and verify that the grinding wheel has a higher R P M rating than the maximum R P M of the Bench Grinder 3 THE DIAMETER OF THE GRINDING WHEELS WILL DECREASE WITH USE Adjust the tool rests and spark arrestors to maintain a distance of 1 16 from the wheel 4 DO NOT STAND IN FRONT OF THE BENCH GRINDER VVHEN STARTING IT Stand to one side of the Bench Grinder and turn it ON VVait at the side for one minute until the grinder comes up to full speed There is alvvays a possibility that debris from a damaged grinding wheel may be dis charged tovvards the operator Page 6 5 THE BENCH GRINDER WILL PRODUCE SPARKS AND DEBRIS DURING GRIND ING OPERATIONS Be sure that there are not any flammable materials in the vicinity Frequently clean grinding dust from the back of the Bench Grinder 6 NEVER FORCE THE VVORK PIECE AGAINST A GRINDING WHEEL especially if the wheel is cold Apply the work piece slowly allowing the grinding wheel an opportunity to warm up This will minimize the chance of wheel breakage DO NOT grind using the sides of the grinding wheels DO NOT apply coolant directly to the grinding wheel 7 KEEP ALL WHEEL GUARDS IN PLACE DO NOT USE THE BENCH GRINDER WITH THE WHEEL
11. www nsc org American National Standards Institute 25 West 43rd Street 4th Floor New York NY 10036 www ansi org ANSI 01 1 Safety Requirements for Woodworking Machines and the U S Department of Labor regulations www osha gov 19 SAVE THESE INSTRUCTIONS Refer to them frequently and use them to instruct others ELECTRICAL SAFETY WARNING THIS TOOL MUST BE GROUNDED WHILE IN USE TO PROTECT THE OPERATOR FROM ELECTRIC SHOCK IN THE EVENT OF A MALFUNCTION OR BREAKDOWN grounding provides the path of least resistance for electric current and reduces the risk of electric shock This tool is equipped with an electric cord that has an equipment grounding conductor and a grounding plug The plug MUST be plugged into a matching electrical receptacle that is properly installed and grounded in accordance with ALL local codes and ordinances DO NOT MODIFY THE PLUG PROVIDED If it will not fit the electrical receptacle have the proper electrical receptacle installed by a qualified electrician IMPROPER ELECTRICAL CONNECTION of the equipment grounding conductor can result in risk of electric shock The conductor with the green insulation with or without yellow stripes is the equipment grounding conductor DO NOT connect the equipment grounding conductor to a live terminal if repair or replacement of the electric cord or plug is necessary CHECK with a qualified electrician or service personnel if you do no
12. 80 808 POWER TOOLS 8 Low Speed 1HP Bench Grinder Intertek 3168328 Operator s Manual Record the serial number and date of purchase in your manual for future reference Serial Number Date of purchase For technical support or parts questions email techsupport rikontools com or call toll free at 877 884 5167 80 808M3 www rikontools com TABLE OF CONTENTS Section Page Salely INSUWUCTOINS x sire uu lad usupa Da ua 3 8 Elecirical Sale Qasam qusanta E 7 8 Talee eT 8 Caron COMON susu uuu a am d b 9 OVCUNU 10 Assembly nstructions 11 12 Operating The Bench Grinder 13 15 Malhienaneee ac a aa o abi 15 Pall Dizdizih r s o isl r 16 aris B 17 LTOUD ESROOUNO aa n 16 19 NOTE specifications photographs drawings and information in this manual represent the current grinder model when the manual was prepared Changes and improvements may be made at any time with no obligation on the part of Rikon Power Tools to modify previously delivered units Reasonable care has been taken to ensure that the information in this manual is correct to provide you with the guidelines for the proper safety assembly and operation of this machine This owner s manual is not a teaching aid and is intended to show assembly adjustments and general u
13. Bench Grinder DO NOT operate this Bench Grinder if you do not fully understand the limitations of this tool DO NOT modify this Bench Grinder in any way BEFORE USING GRINDER WARNING To avoid serious injury and damage to the tool read and follow all of the Safety and Operating Instructions before operating the Bench Grinder WARNING 1 Some dust created by using power tools contains chemicals known to the State of California to cause cancer birth defects or other reproductive harm Some examples of these chemicals are Lead from lead based paints Crystalline silica from bricks cement and other masonry products 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 2 READ the entire Owner s Manual LEARN how to use the tool for its intended applications 3 GROUND ALL TOOLS If the tool is supplied with a 3 prong plug it must be plugged into a 3 contact electrical receptacle The 3rd prong is used to ground the tool and provide protection against accidental electric shock DO NOT remove the 3rd prong See Grounding Instructions on page 7 Page 4 4 AVOID A DANGEROUS
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15. WORKING ENVIRONMENT DO NOT use electrical tools in a damp environment or expose them to rain 5 DO NOT use electrical tools in the presence of flammable liquids or gasses 6 ALWAYS keep the work area clean well lit and organized DO NOT work in an environment with floor surfaces that are slippery from debris grease and wax 7 KEEP VISITORS AND CHILDREN AWAY DO NOT permit people to be in the immediate work area especially when the electrical tool is operating 8 DO NOT FORCE THE TOOL to perform an operation for which it was not designed It will do a safer and higher quality job by only performing operations for which the tool was intended 9 WEAR PROPER CLOTHING DO NOT wear loose clothing gloves neckties or jewelry These items can get caught in the machine during operations and pull the operator into the moving parts The user must wear a protective cover on their hair if the hair is long to prevent it from contacting any moving parts 10 CHILDPROOF THE WORKSHOP AREA by removing switch keys unplugging tools from the electrical receptacles and using padlocks 11 ALWAYS UNPLUG THE TOOL FROM THE ELECTRICAL RECEPTACLE when making adjustments changing parts or performing any maintenance 12 KEEP PROTECTIVE GUARDS IN PLACE AND IN WORKING ORDER 13 AVOID ACCIDENTAL STARTING Make sure that the power switch is in the OFF position before plugging in the power cord to the electrical receptacle
16. ctsused for commercial industrial or educational purposes This limited warranty does not apply to accessory items such as blades drill bits sanding discs grinding wheels or belts and other related items Seller shall in no event be liable for death injuries to persons or property or for incidental contingent special or consequential damages arising from the use of our products To take advantage of this warranty proof of purchase documentation which includes date of purchase and an explanation of the complaint must be provided The Seller reserves the right to effect at any time without prior notice those alterations to parts fittings and accessory equipment which they may deem necessary for any reason whatsoever To take advantage of this warranty please fill out the enclosed warranty card and send it to RIKON Warranty 16 Progress Rd Billerica MA 01821 The card must be entirely completed in order for it to be valid If you have any questions please contact us at 877 884 5167 or email RIKON at warranty rikontools com Page 19 RIKON v POWER TOOLS YEAR WARRANTY For more information 16 Progress Road Billerica MA 01821 877 884 5167 978 528 5380 techsupport rikontools com 80 808M3 VVVVVV rikontools com
17. ding The symbol warnings do not by themselves eliminate any danger The instructions and warnings they give are no substitutes for proper accident prevention Measures A WARNING Be sure to read and understand all safety instructions in this manual including all safety alert symbols such as DANGER WARNING and CAUTION before using this tool Failure to following all instructions listed below may result in electric shock fire and or serious personal injury SYMBOL MEANING SAFETY ALERT SYMBOL Indicates DANGER WARNING OR CAUTION h May be used in conjunction with other symbols or pictographs sa Indicates an imminently hazardous situation which if not avoided will result in death or serious Injury A WARNING Indicates a potentially hazardous situation which if not avoided could result in death or serious injury dik CAUTION Indicates a potentially hazardous situation which if not avoided could result in minor or moderate injury NOTICE Without Safety Alert Symbol Indicates a situation that may result in property damage THIS SYMBOL DESIGNATES THAT THIS TOOL IS LISTED BY THE INTERTEK TESTING SERVICES TO UNITED STATES AND CANADIAN STANDARDS ntertek Page 3 SAFETY INSTRUCTIONS GENERAL SAFETY Operating a Bench Grinder can be dangerous if safety and common sense are ignored The operator must be familiar with the operation of the tool Read this manual to understand this
18. e 4 Adjust the eye shield bracket and eye shield into the desired position above the grinding wheel then tighten the knobs dk WARNING ALWAYS USE THE EYE SHIELDS AND WHEEL GUARDS provided with the grinder SMALL KNOB SHIELD BRACKET REAR SHIELD BRACKET KNOR ga SAFETY SHIELD Beem RIGHT Page 12 PERMANENT MOUNTING Fig l Use the mounting holes in the base of the grinder to firmly attach grinder to a solid work surface or grinder stand mounting hardware and stand not included See Figure I WARNING To avoid serious injury secure the Bench Grinder to a solid work surface If the Grinder is not permanently mounted to a work surface and remains portable the Grinder s base should be temporar ily clamped to a table or board plywood Make sure that the clamps do not interfere with the tool rests wheels or hinders the movement of the user and the material being ground during use If the Bench Grinder is not securely mounted it will have the ability to move or tip over during grinding operations and possibly cause the operator s fingers to contact the grinding wheels A CAUTION ALWAYS WEAR EYE PROTECTION Everyday eyeglasses are NOT safety glasses ALWAYS wear Safety Goggles that comply with ANSI standard Z87 1 when operating power tools OPERATING THE BENCH GRINDER BEFORE USING GRINDER Operating a Bench Grinder can be dangerous if safet
19. g than the grinder s motor The new abrasive wheel must have the correct 8 outer wheel diameter and 5 8 bore diameter as original wheels The labels on the sides of the abrasive wheel must stay on DO NOT remove these labels These labels or fiber discs help spread the holding pressure of the tightened nuts on the grinding wheel flanges 9 Replace the abrasive wheel outer wheel flange and arbor hex nut NOTE The left hand arbor hex nut is left hand threaded and is tightened by rotating it counter clockwise The right hand arbor hex nut is right hand threaded and is tightened by rotating it clockwise A CAUTION DO NOT OVER TIGHTEN the arbor hex nut as this may damage the abrasive wheel wheel flanges and cause serious injury to the operator 10 Replace the wheel cover and secure it back in place on the grinder with the fasten ers that were previously removed step 4 11 Run the new wheel at full speed for a few minutes to ensure that it is rotating properly WIRE WHEEL or BUFFING WHEEL Fig L A wire wheel or buffing wheel A not included can be used with your grinder De pending on the thickness of the wheel you will need to add one or more spacers not included to allow the arbor hex nut D to tighten correctly Figure L shows the correct placement of the spacer B Note Spacer B should always go onto the arbor shaft first Always use the wheel flanges E that come with the g
20. iece Have a qualified electrician check circuit for proper voltage Replace motor capacitor Reduce pressure on work piece Reduce the amount of items on circuit Replace with correct fuse or circuit breaker Replace with new parts trips creating a short circuit Undersized or excessive length of extension cord see page 8 Material wedged between wheel and tool rest or guard Use correct size and length of extension cord Turn grinder off unplug power cord and remove material CORRECTING EXCESSIVE WHEEL WOBBLE The performance of your bench grinder can be improved with just a little time performing a few simple tune up steps Make sure the grinder is always unplugged during any adjustment or wheel changes The large flange washers may not run perfectly true and can be adjusted by making a reference mark on each flange washer and the wheel to record their original location Next loosen the shaft nut and slightly rotate one flange washer clockwise and the other counterclockwise These movements should only be about one half an inch at a time then snug up the shaft nut by hand and spin the wheel by hand Observe any change This rotation should minimize any oscillation caused by flange washers Now re tighten the shaft nuts and dress the wheel The center bushings supplied by aftermarket grinding wheel manufacturers are designed to roughly center the wheel on the shaft The flange washers hold the wheel dressing wi
21. isted on pages 16 and 17 Page 9 OVERVIEW iii R RR L LSR i E BENCH GAWDER 80 808 8 LOW SPEED 1HP BENCH GRINDER OVERVIEW Fig D Tool Rest x2 Tool Rest Adjustment Knobs x2 8 Grinding Wheel 60 Grit Wheel Cover x2 A Eye Shield Assembly Left Clear x2 H Wheel Cover Knob x6 B LED Work Light On Off Switch with Removable Key C Eye Shield Adjustment Knob x4 J Rubber Foot x4 D Eye Shield Assembly Right Magnifying x2 K Mounting Hole x2 E 8 Grinding Wheel 120 Grit L Dust Port x2 F M G N NOTE Full Parts Explosion and Parts List are listed on pages 16 and 17 TOOLS REQUIRED FOR ASSEMBLY 13mm or an Adjustable Wrench 2 Phillips Screwdriver Page 10 ASSEMBLY INSTRUCTIONS The Bench Grinder is provided with 3 Adjust each Tool Rest until its inside edge adjustable left and right positioned two piece 1 is 1 16 from the grinding wheel Firmly tool rests to lay your workpieces on tighten the hex bolts and knobs holding the supports See Figure F 1 DO NOT assemble the Bench Grinder until you are sure the tool IS NOT plugged in 2 DO NOT assemble the Bench Grinder until you are sure the power switch is in the OFF position 3 DO NOT assemble the Bench Grinder until you are sure the grinding wheels are firmly tightened to the Bench Grinder TOOL RESTS Figs E and F The Bench Grinder is provided with two Tool Rests assemblies for use with
22. lting in a loss of power and overheating of tool When operating a power tool outdoors use an outdoor extension cord marked W A or W These cords are rated for outdoor use and reduce the risk of electric shock MMMM RECOMMENDED GAUGE FOR EXTENSION CORDS AWTS 120 VOLT OPERATION ONLY 25 LONG 50 LONG 16 ANG 16 AWG 14 ANG 16 AWG 14 AVIG 12 AG 16 AWG 14 AWG 12 AWG SPECIFICATIONS Model No Motor Horsepower Amps Volts Speed No Load Wheel Diameter Width Arbor Grits Overall Cord Length Width Height Base Size Net Weight Shipping Weight Shipping Carton Warranty 80 808 1 HP 7 120V 60 Hz 1750 RPM 8 1 5 8 60 120 6 ft 10 1 4 19 12 1 8 6 3 4 9 1 2 54 165 59 165 24 15 3 8 14 5 Years NOTE The specifications photographs drawings and information in this manual represent the current grinder model when the manual was prepared Changes and improvements may be made at any time with no obligation on the part of Rikon Power Tools to modify previously delivered units Reasonable care has been taken to ensure that the information in this manual is correct to provide you with the guidelines for the proper safety assembly and operation of this machine Page 8 CARTON CONTENTS UNPACKING AND CHECKING CONTENTS This Bench Grinder will require a minimal amount of assembly 1 Remove parts from all of the cartons and
23. rinder for both wire wheel and buffing wheels See sec tion CHANGING THE GRINDING WHEEL for correct procedure of changing wheels See page 14 MAINTENANCE OF THE BENCH GRINDER dl WARNING Turn the power switch OFF and unplug the power cord from its power source prior to any maintenance LUBRICATION The Bench Grinder has sealed lubricated bearings in the motor housing that do not require any additional lubrication from the operator CLEANING With the Bench Grinder unplugged rotate the abrasive wheels slowly and inspect for any damage or trapped debris Periodically blow areas in and around the grinder to keep the machine and work area clean CAUTION REPLACE the abrasive wheels if there is any damage at all FAILURE to replace a damaged wheel can cause serious injury to the operator Periodically check all nuts and fasteners to make sure that they are secure CAUTION DO NOT USE FLAMMABLE MATERIALS to clean the Bench Grinder A clean dry rag or brush is all that is needed to remove dust and debris buildup Ak WARNING Repairs to the Bench Grinder should be performed by trained personnel only Unauthorized repairs or replacement with non factory parts could cause serious injury to the operator and damage to the Grinder Page 15 lt x O lt U x 2 3 dH 43345 MO 8 808 08 s Jo
24. se SAVE THESE INSTRUCTIONS Refer to them often CALIFORNIA PROPOSITION 65 WARNING Some dust created by power sanding sawing grinding drilling and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm Your risk from expo sure to these chemicals varies depending on how often you do this type of work To reduce your exposure work in a well ventilated area and with approved safety equipment such as dust masks that are specially designed to filter out microscopic particles For more detailed information about California Proposition 65 log onto rikontools com Page 2 SAFETY INSTRUCTIONS IMPORTANTI Safety is the single most important consideration in the operation of this equipment The following instructions must be followed at all times Failure to follow all instructions listed below may result in electric shock fire and or serious personal injury There are certain applications for which this tool was designed We strongly recommend that this tool not be modified and or used for any other application other than that for which it was designed If you have any questions about its application do not use the tool until you have contacted us and we have advised you The purpose of safety symbols is to attract your attention to possible dangers The safety symbols and the explanations with them deserve your careful attention and understan
25. t completely under stand the grounding instructions or if you are not sure the tool is properly grounded USE ONLY A 3 WIRE EXTENSION CORD THAT HAS A 3 PRONG GROUNDING PLUG AND A 3 POLE RECEPTACLE THAT ACCEPTS THE TOOL S PLUG REPLACE A DAMAGED OR WORN CORD IMMEDIATELY This tool is intended for use on a circuit that has an electrical receptacle as shown in FIGURE A FIGURE A shows a 3 wire electrical plug and electrical receptacle that has a grounding conductor If a properly grounded electrical receptacle is not available an adapter as shown in FIGURE B can be used to temporarily connect this plug to a 2 contact ungrounded receptacle The adapter has a rigid lug extending from it that MUST be connected to a permanent earth ground such as a properly grounded receptacle box THIS ADAPTER IS PROHIBITED IN CANADA SAFETY INSTRUCTIONS EXTENSION CORDS A WARNING Keep the extension cord clear of the working area Position the cord so that it will not get caught on lumber tools or other obstructions while you are working with a power tool WARNING Check extension cords before each use If damaged replace immediately Never use a tool with a damaged cord since touching the damaged area could cause electrical shock resulting in serious injury Use a proper extension cord Only use cords listed by Underwriters Laboratories UL Other extension cords can cause a drop in line voltage resu
26. th a wheel dresser will make the wheel run true If adjusting the flange washers does not make the wheel run without side to side oscillation then remove the wheel and flange washers and check the shoulder on the motor shaft at the point where the flange washer seats against it A slight burr on the edge of the shoulder can stop the flange wash er from seating properly This can be removed by using a file to smooth the edge of the shoulder Look for any roughness on the surfaces of the flange washers and smooth these spots on sandpaper placed on a flat surface Then replace the wheel re adjust the flange washers and dress the wheel Page 18 WARRANTY POWER TOOLS 5 Year Limited Warranty RIKON Power Tools Inc Seller warrants to only the original retail consumer purchaser of our products that each product be free from defects in materials and workmanship for a period of five 5 years from the date the product was purchased at retail This warranty may not be transferred This warranty does not apply to defects due directly or indirectly to misuse abuse negligence accidents repairs alterations lack ol maintenance or normal wear and tear Under no circumstances will Seller be liable for incidental or consequential damages resulting from defective products All other warranties expressed or implied whether of merchantability fitness for purpose or otherwise are expressly disclaimed by Seller This warranty does not cover produ
27. the two different grit grinding wheels The Left Side Tool Rest is and the Right Side Tool Rest are both entirely flat SPARK ARRESTORS Fig G 1 Assemble the Spark Arrestors A to the front surface of the Wheel Covers B with the pan head screws and washers C as shown See Figure G 2 Adjust each Spark Arrestor until the lower edge D is 1 16 from the grinding wheel Then firmly tighten the pan head screws See Figure G 3 As the grinding wheel reduces in size from use re adjust the spark arrestors so that their lower edges maintain the safe 1 16 spacing from the wheel 1 Assemble the Tool Rest Supports A to the inside surface of the Wheel Covers B with the flat washers C and hex head bolts D as shown See Figure E 2 Assemble the Tool Rests E to the Supports F with the supplied flat washers G and Adjustment Knobs M6 15 H as shown See Figure F Page 11 ASSEMBLY INSTRUCTIONS EYE SHIELDS Fig H 1 Fasten the Safety Shield Assemblies to the Safety Shield Brackets using the Fastening Knob M5 15 Fig H NOTE The slotted part of the safety shield bracket must face towards the grinding wheel guard 2 Attach the Safety Shield Assembly and Bracket to the Wheel Guard using a Washer Lock Washer and Rear Shield Bracket Knob M6 30 3 The eye shield should be positioned over the grinding wheel to protect the user against any sparks or debris that may be thrown during us
28. utes before use Page 14 7 Inspect the grinding wheel for any irregularities that still need to be dressed or for and damage If there is damage to the wheel cracks major chips missing replace the wheel immediately 8 The grinding wheel may now be slightly smaller in diameter after dressing Re adjust the tool rests and spark arrestors to maintain a 1 16 clearance to the grinding wheel CHANGING THE GRINDING WHEEL Fig K Due to normal wear both wheels will need to be replaced occasionally 1 Turn the power switch OFF and unplug the power cord from its power source 2 Rotate the eye shield up to access the tool rest 3 Loosen the tool rest knob and rotate the tool rest away from the grinding wheel 4 Remove the Wheel Cover B by unscrewing the fasteners that hold it in place 5 Lightly push a wood wedge between the grinding wheel and the guard to keep the shaft from turning Then use a cresent wrench to remove the arbor hex nut 6 NOTE The left hand arbor hex nut E is left hand threaded and is loosened by rotat ing it clockwise The right hand arbor hex nut is right hand threaded and is loosened by rotating it counter clockwise OPERATING THE BENCH GRINDER Refer to Fig K on page 14 7 Remove the Outer Wheel Flange H and then the abrasive wheel from the arbor shaft G A CAUTION The new abrasive wheel to be put onto the grinder must have a higher R P M ratin
29. y and common sense are ignored The operator must be familiar with the operation of the tool Read this manual to understand this Bench Grinder DO NOT operate this Bench Grinder if you do not fully understand the limitations of this tool DO NOT modify this Bench Grinder in any way Ak WARNING To avoid serious injury and damage to the tool read and follow all of the Safety and Operating Instructions on pages 3 8 before operating the Bench Grinder The Bench Grinder is designed for hand held grinding sharpening and cleaning operations Al CAUTION ALWAYS WEAR EYE PROTECTION Hot sparks are produced during grinding operations 1 Stand to the side of the Bench Grinder and plug in the power cord to a suitable power source 2 Remain to the side of the Bench Grinder and turn it ON by moving the power switch to the up position 3 Allow the grinding wheels to come up to a steady speed for at least one minute before any grinding is done 4 Adjust the eye shields Place the work piece flat on the appropriate tool rest for the desired operation Firmly hold onto the work piece use pliers vise clamps if necessary 5 Move the work piece towards the grinding wheel until it lightly touches Move the work piece back and forth across the front surface of the grinding wheel removing the amount of material desired Grinding in one spot on the wheel will create uneven wear on the wheel face and
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