Jet Tools JBG-6A User's Manual
Contents
1. Stator ASS i o ueterem Dad td eee 1 RENE JBGOA 03 s tator ASSy i nenne ete tee Ei il eit tee lee oce eaae ec aet eundi JBOGTOASO3 1 Staton ASSy aine entere tac Dated JBG6A 05 Motor Housing ec iat ce idee Ite ee dece eee te deis 1 Pob elus JBGO9A 05 4 Motor Housing ette tac AE JBG10A 05 MOtOr Housimg A nemen T Geida JBG6A 06 Base Em 1 EA EE EE EEN ASA TEEN EEN T aguda JBG6A 07 Cross SCGIOW xai eddie ene dg e a 1 4 X EE 4 B cue TS 0720071 Lock Waslier 2 ib eena e ier terere e dees WA 4 Oams TS 0561011 Hex Nut net a e teta eas 11A stetit dites 4 105 die JBG6A 10 mE 1 inue JBGGA TO a tS ae ete Between tate vectes Mincir JBGTOA TO E nein E ative ined tee 11 s BB 6202ZZ Ball Bearing JB6 6A conan lid 2 es BB 6204ZZ Ball Bearing JBG 8BA oooonnnnnocinnnncoccnnocancnnnnnnnnnnn seem A dinum BB 6206ZZ Ball Bearing JBG 104 sss eem I 12153 JBG6A 12 COVBE teet estet dead estt ed adfuit utin tati edet certe 2 HA AC AA TE Stevie dies JBGTOA EE SE ceca JBG10A 14 Flat Washer JBG 10A only not shown e 15 ote JBG6A 15 SUEN era t ree aea rie e eet decet it erts 3 16x5 8 4 Merit JBG6A 16P Inner Wheel Guard left intet ete fetu eden dad 12. A Fine Grain Abrasive Grinding Wheel should be used for sharpening tools of grinding to close size tolerances because it removes metal more gradually for precision grinding and gives work a smooth finish AWARNING Always use approved safety glasses or face shields Failure to comply may cause serious injury Switch The switch is located on the front of the grinder near the bottom To turn the tool on depress the rocker switch at the top near the word ON To turn the tool off depress the bottom part of the rocker switch near the word OFF Precautions Before starting the grinder turn the wheels by hand making sure they are clear of obstructions and that they turn freely The tool rests and spark guards should not touch the wheel Turn on the grinder and allow it to reach full running speed before starting to grind Keep a steady moderate pressure on the workpiece and keep it moving at an even pace for smooth grinding Pressing too hard overheats the motor and prematurely wears down the grinding wheels Note the original bevel angle on the item to be sharpened and try to maintain the same shape The grinding wheel should rotate into the object being sharpened Keep a tray filled with water and dip your work into in regularly to prevent overheating Overheating can weaken metals Do not use the side of the grinding wheel this puts dangerous stress on the wheel When the wheel becomes loaded of dull use an approved g
3. hot from recent grinding operations Make sure shavings and debris are cold before cleaning the grinder Brush all shavings from the motor housing tool rests and wheel guards Check grinding wheels for cracks and chips Replace if damaged ACAUTION Avoid the use of the following cleaning chemicals or solvents gasoline carbon tetrachloride chlorinated solvents ammonia and household detergents containing ammonia Lubrication All motor bearings are permanently lubricated at the factory and require no additional lubrication Troubleshooting Problem Probable Cause Remedy Motor will not start Not plugged into receptacle Plug it into the power source receptacle Switch not in the ON position Turn the switch to the ON position Motor cord cut or abraded Replace with a new cord Plug on cord is faulty Replace with a new plug Fuse or circuit breaker open Re set may be too many machines on line Motor faulty Call WMH Tool Group Customer Service Department Motor will not start and fuse or circuit breaker opens Too many electrical machines running on the same outlet Turn off other machines and try again Incorrect fuse Try time delay fuse or go to circuit with higher rated fuse of circuit breaker Wheels cannot rotate because of obstruction Unplug and turn grinding wheel by hand Undersized extension cord Use correct size extension cord man
4. the power cord plug when plugging or unplugging to or from an outlet AWARNING If improperly grounded this power tool can cause serious injury from electrical shock particularly when used in damp locations or near plumbing If an electrical shock occurs there is the potential of a secondary hazard such as your hands coming in contact involuntarily with the rotating grinder Electrical Connections The BG6 and BG8 bench grinders are rated at 115V 1Ph These grinders are designed for use on a circuit with an outlet that looks the one shown in Fig A and have a grounding prong also shown in Fig A A temporary adapter Fig B may be used to connect the plug to a two prong receptacle Fig B if a properly grounded outlet is not available A temporary adapter should only be used until a properly grounded outlet can be installed by a qualified electrician This adapter is not applicable in Canada The green colored lug must be fastened to the cover plate screw Important The adapter illustrated in Fig B is for use only if you already have a properly grounded two prong receptacle Do not modify the plug provided if it will not fit the outlet have the proper outlet installed by a qualified electrician Check with a qualified electrician or service personnel if the grounding instructions are not completely understood or if in doubt as to whether the tool is properly grounded AWARNINGietore plugging into the power source b
5. MW Drill Presses Surface Grinders Chain Hoist Winches Manual WW Jointers Mechanics Hand Tools Mobile Bases Air ToolsAndustrial Hoists Air MW Finishing Tapping Manual WW Air Filtration WW Lathes Striking Tools Safety Equipment Air Tools Light Hoists Electric Equipment Trolleys Air Lever Hoists WW Bandsaws WW Planers Vises non precision Specialty Items Industrial Metalforming MW Lathes Trolleys Electric Pullers JCH Models WW Buffers WW Sanders Camps Vise Accessories Lubrication Mill Drills MW Precision Vises Web Slings Scissor Lift Tables WW Drill Presses WW Shapers Milling Machines Pallet Trucks Winches Electric Screw Jacks WW Dust Collectors WW Tablesaws WHAT IS COVERED This warranty covers any defects in workmanship or materials subject to the exceptions stated below Cutting tools abrasives and other consumables are excluded from warranty coverage WHO IS COVERED This warranty covers only the initial purchaser of the product WHAT IS THE PERIOD OF COVERAGE The general JET warranty lasts for the time period specified in the product literature of each product WHAT IS NOT COVERED Five Year Warranties do not cover woodworking WW products used for commercial industrial or educational purposes Woodworking products with Five Year Warranties that are used for commercial industrial or education purposes revert to a One Year Warranty This warranty does not cover defects due directly or indirectly to misuse abuse neg
6. chemicals are O Lead from lead based paint O Crystalline silica from bricks cement and other masonry products O Arsenic and chromium from chemically treated lumber Your risk of exposure 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 face or dust masks that are specifically designed to filter out microscopic particles Do not operate this machine while tired or under the influence of drugs alcohol or any medication Make certain the switch is in the OFF position before connecting the machine to the power supply Make certain the machine is properly grounded Make all machine adjustments or maintenance with the machine unplugged from the power source Remove adjusting keys and wrenches Form a habit of checking to see that keys and adjusting wrenches are removed from the machine before turning it on KEEP GUARDS IN PLACE and in working order at all times when the machine is in use If removed for maintenance purposes use extreme caution and replace the guards immediately Make sure the bench grinder is firmly secured to the floor or bench before use Check damaged parts Before further use of the machine a guard or other part that is damaged should be carefully checked to determine that it will operate properly and perform its intended function Check for alignment of moving parts binding of moving part
7. mounting holes Tighten the screws H Mounting the Grinder To prevent the grinder from moving during operation it should be securely mounted to a work surface or grinder stand 1 Align the mounting holes on the grinder with predrilled holes in a bench or grinder stand 2 Insert bolts through the holes and tighten using washers and nuts not included Electrical Electrical Requirements When connecting the bench grinder to the power source outlet the outlet must be properly grounded to protect the operator from electrical shock In the event of a malfunction or breakdown grounding provides a path of least resistance for electrical current to reduce the risk of electrical shock This machine is equipped with an electric cord having an equipment grounding conductor outlet that is properly installed and grounded in accordance with all local codes and ordinances This grinder is equipped with a power cord Improper connection of the equipment grounding conductor can result in a risk of electric shock The conductor with insulation having an outer surface that is green with or without yellow stripes is the equipment grounding conductor If repair or replacement of the electric cord or plug is necessary do not connect the equipment grounding conductor to a live terminal Plug power cord into a 110 120V properly grounded outlet protected by a 14 amp fuse or circuit breaker AWARNING Do not touch the prongs of
8. TO PERSONS OR PROPERTY OR FOR INCIDENTAL CONTINGENT SPECIAL OR CONSEQUENTIAL DAMAGES ARISING FROM THE USE OF OUR PRODUCTS SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU WMH Tool Group sells through distributors only The specifications in WMH catalogs are given as general information and are not binding Members of WMH Tool Group reserve 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 JET branded products are not sold in Canada by WMH Tool Group 2 Table of Contents WARRANTY AND SERVIGE idi s Hte Ht spe Pc biu esie iei He eiie 2 Table of Contents ida Leiter AA Latest edid ab Me adit ut Oel Eer 3 UNE un Un ET A laiigero lele itol n EEEE O 6 SPecificatiONS cdi tidad E A E E A E 6 O gege 7 Contents of the Shipping Container 5 3 2 ica iactant heit dads Acie tede the ctt leder een 7 le droit iaa 8 Assembling the Spark Guard and Eye Shield Mounting Brackets eene 8 Installing the Spark Guard and Eye Shield Mounting Drackeis AA 9 TOOL R6SIS eti ibt dee tegen fetten tette ieiaieno Aere Mabesexthbr bent dacdoet abi eet ob dedit qudd eet 9 Me EE 9 Mounting the Grinder aris DID 9 Eege 10 Electrical FReg irements ec rect sate eevee nee NUE t ase
9. This Manual is Bookmarked J E T WMH TOOL GROUP Operating Instructions and Parts Manual JBG Series Bench Grinders Models JBG 6A JBG 8A JBG 10A Model JBG 8A shown WMH TOOL GROUP 2420 Vantage Drive Elgin Illinois 60123 Part No M 577101 Ph 800 274 6848 Revision G 04 06 www wmhtoolgroup com Copyright WMH Tool Group WARRANTY AND SERVICE WMH Tool Group Inc warrants every product it sells If one of our tools needs service or repair one of our Authorized Service Centers located throughout the United States can give you quick service In most cases any of these WMH Tool Group Authorized Service Centers can authorize warranty repair assist you in obtaining parts or perform routine maintenance and major repair on your JET tools For the name of an Authorized Service Center in your area call 1 800 274 6848 MORE INFORMATION WMH Tool Group is consistently adding new products to the line For complete up to date product information check with your local WMH Tool Group distributor or visit jettools com WARRANTY JET products carry a limited warranty which varies in duration based upon the product MW Metalworking WW Woodworking DAY i aj Body Repair Kits Si Rigging Equip 5 Bottle Jacks Service Jacks Trolleys Geared WW Dust Filters Lathe Accessories Air Tools Cable Pullers MW Bandsaws Stackers Beam Clamps Trolleys Plain WW Dust Fittings Fastening Tools Machine Accessories Contractor Cold Saws
10. aae Rees LaS 10 See Eeer Le EE 10 Extension Cords ota eene as eie etaed as nities eade fae Hoa tan Re ERR Rude Rud 10 OPeratiON ados ASS A E AA RI A AI Ad E 11 idi 11 PrESCAUIONS 25 RI Pe 11 el UE CG 11 Eye Shield Tilt Adjustment a ea Eet 11 Spark Guard E P 11 TAREA A ML EE 11 E ale Ile EE 12 Ring Tests tct cesa dim vete tt oom mds 12 Gare or Grinding Wheel s iie Atene tnt ates t d e Ea 12 Ghanging WEE 12 Grinding Wheels 5 4 cerent e Pid 13 Wire Wee Brushes a i aa T aa aaa aaa aa E aa a a a Aaaa a aaa Aaaa E OAA aA Aaii 13 E EEIT EE 13 e RE 13 Troubleshooting 3 5 dsc coe dee etui memi 14 Parts and Assembly ebe e edem uem bae m tnn es 15 Parts ista ira wA Le du s ede ede ue veut e due bout Dead bud ee boe eee 15 Assembly Drawing eere t iere tte hare de eie e ecd odd orit edes dedere e eed cts 18 Wining DIA e DRE 19 Replacement Parts er beer a edited e eed er ele erbe en edo 20 The specifications in this manual are given as general information and are not binding WMH Tool Group reserves the right to effect at any time and without prior notice changes or alterations to parts fittings and accessory equipment deemed necessary for any reason whatsoever Warnings 10 11 12 13 14 15 16 17 18 19 20 For your own safety read instruction manual before operating grinder Read and understand the entire owner s manual b
11. commended accessories Consult the owners manual for recommended accessories The use of improper accessories may cause risk of injury to persons Improper accessories may be hazardous Frequently clean grinding dust from beneath grinder MAINTAIN TOOLS WITH CARE Keep tools sharp and clean for best and safest performance Follow instructions for lubricating and changing accessories Make sure the work piece is securely attached or clamped to the table Never use your hand to hold the work piece Turn off the machine before cleaning Use a brush or compressed air to remove chips or debris do not use your hands Do not stand on the machine Serious injury could occur if the machine tips over Never leave the machine running unattended Turn the power off and do not leave the machine until it comes to a complete stop Remove loose items and unnecessary work pieces from the area before starting the machine DON T FORCE TOOL It will do the job better and safer at the rate for which it was designed Familiarize yourself with the following safety notices used in this manual This means that if precautions are not heeded it may result in minor injury and or ACAUTION P Pu possible machine damage This means that if precautions are not heeded it may result in serious injury or possibl AWARNING E y IRI ae even death SAVE THESE INSTRUCTIONS Introduction This manual is provided by WMH Tool Group covering the
12. crewdriver 4 Stabilize the wheel by holding the opposite wheel firmly 5 Unscrew the wheel nut B with a 1 wrench Note Turn the locking nut on the right hand wheel counterclockwise to loosen Turn the locking nut on the left hand wheel clockwise to loosen 6 Remove the outer flange C and wheel D 7 Clean flanges Check the flanges to make sure they are flat Wheel flanges that are not flat will cause the wheel to wobble 8 Putthe inner flange wheel D outer flange C and nut A on the shaft Tighten the nut Do not over tighten This may cause the wheel to crack 9 Replace the guard cover Adjust the spark guards and tool rests to a 1 16 clearance from the wheel see Adjustments on page 11 Figure 4 Grinding Wheels The JET Series bench grinders come equipped with general purpose grinding wheels Wheels vary according to types of abrasive hardness grit size and structure JET carries a full line of abrasive grinding carbide grinding tool sharpening and wire wheels Contact your local distributor for the proper grinding wheel or wire wheel brush for your application Wire Wheel Brushes Wire brushing provides a fast way to remove rust scale burrs and point from metal Use coarse wire brushes for hard cleaning jobs Use fine wire brushes for polishing and finish work When the brush tips become dull reverse the brush on the grinder Cleaning ACAUTION Metal shavings may still be
13. dict edu ues JBG8A 16P Inner Wheel Guard left ssl m JBG10A 16 Inner Wheel Guard left sel d A JBG6A 17P Inner Wheel Guard obt 1 eet lee JBG8A 17P Inner Wheel Guard right A T Jin e JBG10A 17 Inner Wheel Guard right A T LEN JBG10A 18 Flat Washer JBG 10A only not shown A 4 TO cies JBG6A 19 Cross SOE Wesco Eed Meter des Soci eL WAKA La 4 205 JBG6A 20 Wheel FEl nge csc mo ete eer 1 2 DA ceat 4 beni JBG8A 20 Wheel Flange ecient IB LED Lud iuit JBG1O0A 20 Wheel e icons PhD ido sateen 2d iini 576200 onere Grinding Wee 6 60grit 1 E 576225 Grinding Wheel sees 8 60grit eee 1 E EUER 576228 A LL A Ll 576207 s Grinding Wheel 2 2 taaan tees Een 6 36grit 1 rta 5 6229 1 caOrinding Wheel iicet AAA be 576226 Grinding A UA AA 22 ion JBG6A 22 NUCE actores mitte at inet et todo PER 2 iE E este ATA NU niit torte edet dete ete COLO doen daca easel A e ET Ee Tnm JBGITOA 23 sio Nuterlghit 2 ico ertet oe Red eaten ha x ebd beet ttis 24 seus JBG6A 24P Outer Wheel Guard left iater intet 1 Pi JBG8A 24P Outer Wheel Guard left EE JBG10A 24 Outer Wheel Guard l
14. e sure that power switch is in the OFF position THREE PRONG PLUG f GROUND PRONG CW Q GROUNDED OUTLET crounn KH TAB SECURED WITH SCREW e Extension Cords Use only three wire extension cords that have three prong grounding type plugs and three prong receptacles that accept the tool s plug Replace or repair damaged or worn core immediately USE PROPER EXTENSION CORD Make sure your extension cord is good condition When using an extension cord be sure to use one heavy enough to carry the current your product will draw An undersized cord will cause a drop in line voltage resulting in loss of power and overheating Table 1 shows the correct size to use depending on cord length and nameplate ampere rating If in doubt use the next heavier gage The smaller the gage number the heavier the cord Volts Total length of cord in feet Amp 120V 25 50 100 150 Rating 240v 50 100 200 300 AWG 0 6 18 16 16 14 6 10 18 16 14 12 10 12 16 16 14 12 12 16 14 12 notrcmd not rcmd Table 1 Operation A bench grinder is designed for hand grinding operations such as sharpening chisels screwdrivers drill bits removing excess metal and smoothing metal surfaces A Medium Grain Abrasive Grinding Wheel is suitable for rough grinding where a considerable amount of metal must be removed or when obtaining a smooth finish is not important
15. efore attempting assembly or operation Read and understand the warnings posted on the machine and in this manual Failure to comply with all of these warnings may cause serious injury Replace the warning labels if they become obscured or removed This bench grinder is designed and intended for use by properly trained and experienced personnel only If you are not familiar with the proper and safe operation of a bench grinder do not use until proper training and knowledge have been obtained Do not use this bench grinder for other than its intended use If used for other purposes Mac Tools disclaims any real or implied warranty and holds itself harmless from any injury that may result from that use Wear eye protection and always use guards and eye shields Always wear approved safety glasses face shields while using this bench grinder Everyday eyeglasses only have impact resistant lenses they are not safety glasses Before operating this bench grinder remove tie rings watches and other jewelry and roll sleeves up past the elbows Remove all loose clothing and confine long hair Non slip footwear or anti skid floor strips are recommended Do not wear gloves Wear ear protectors plugs or muffs during extended periods of operation Some dust created by power sanding sawing grinding drilling and other construction activities contain chemicals known to cause cancer birth defects or other reproductive harm Some examples of these
16. eft seems 29 e JBG6A 25P Outer Wheel Guard right eee 1 lat eh JBG8A 25P Outer Wheel Guard right seed edP ege JBG10A 25 Outer Wheel Guard right Hel 26 uote JBG6A 26 Cross SClOW m 1 4x1 2 bi 8 Parts List Index No Part No JBG10A 49 JBG6A 50 Description Size Qty Tool Reste lefa ERE ot len oeste oct ei b EE E bod 1 Tool Rest left lote eec Eb cue Loth eoe tube ratita 1 TOO EE 1 Tool Rest rights iet et rette tede veste ra doa iae eg ces 1 Recipe 1 Tool Rest de rta teret er RUE pe POR ee Rene FR ER Ve rage 1 ElatWasher ret ces TE ee mA eene 4 Hex GCap Bolt here niea 5 16x3lA ss 4 Rubber G der 2 een eee etos Testa acest 1 Rubber GUld6 c4 eT ta te E eot ede de aaa ect Sedes ose 1 Rubber Gulde etes eine Ie m iic E 1 SE ll Te WEE 1 BUSHING eee Ma Li E 1 BUSNINO sist ects come ete y n E o de M tuas 1 Star Washer JBG 10A only not shown sse 2 Gross EE 3 16x3 8 ooo 2 Condenser 125 VAC 21O0MED cemere 1 Condenser 125 VAC 20O0MED seems 1 Condenser 125 VAC 20O0MED eem 1 Bracket 4o A it rete meer tenu trm e ce EE 1 Bracket eM oin end ae ny ae M eh Pe eee Electus 1 Bracket a e ed m ol dl Mc 1 STEE Es beet eee tere es 3 16X1 2 1 Power Gordiani Mendieta elei este ER eel cad te dete ud des 1 Power God celeber is tb sed ces 1 Po
17. h two 1 4 x 3 8 hex cap screws E and two 1 4 flat washers F The spark guards A4 should be adjusted to within 1 16 of the grinding wheel surface or other accessory being used 2 Install the right spark guard and mounting bracket in the same manner Note As the wheel wears down the spark guards must be re adjusted to maintain the 1 16 distance Tool Rests Refer to Figure 2 Parts needed 2 Tool Rest Left J and Right not shown 4 5 16 x 3 4 Hex Cap Screws C 4 5 6 Flat Washers D Note There is a eft and a right tool rest Refer to Figure 1 to ensure that you install them correctly 1 Install the left tool rest J by threading two 5 16 x 3 4 hex cap screws C through two 5 16 flat washers D and the tool rest J into the wheel housing M The tool rests should be adjusted to within 1 16 of the grinding wheel or other accessories being used As the wheel wears down the tool rest must be re adjusted to maintain a 1 16 clearance 2 Install the right tool rest in the same manner Eye Shields Refer to Figure 2 Parts needed 4 3 16 x 3 8 Pan Head Screws H 2 Eye Shields L 2 Eye Shield Bracket Plates C The eye shields L are identical and will fit on either side of the grinder Figure 2 To install eye shields refer to Figure 2 Insert two 3 16 x 3 8 pan head screws H through the mounting plate A2 eye shield C and bracket plate G containing threaded
18. ligence or accidents normal wear and tear improper repair or alterations or lack of maintenance HOW TO GET SERVICE The product or part must be returned for examination postage prepaid to a location designated by us For the name of the location nearest you please call 1 800 274 6848 You must provide proof of initial purchase date and an explanation of the complaint must accompany the merchandise If our inspection discloses a defect we will repair or replace the product or refund the purchase price at our option We will return the repaired product or replacement at our expense unless it is determined by us that there is no defect or that the defect resulted from causes not within the scope of our warranty in which case we will at your direction dispose of or return the product In the event you choose to have the product returned you will be responsible for the shipping and handling costs of the return HOW STATE LAW APPLIES This warranty gives you specific legal rights you may also have other rights which vary from state to state LIMITATIONS ON THIS WARRANTY WMH TOOL GROUP LIMITS ALL IMPLIED WARRANTIES TO THE PERIOD OF THE LIMITED WARRANTY FOR EACH PRODUCT EXCEPT AS STATED HEREIN ANY IMPLIED WARRANTIES OR MERCHANTABILITY AND FITNESS ARE EXCLUDED SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG THE IMPLIED WARRANTY LASTS SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU WMH TOOL GROUP SHALL IN NO EVENT BE LIABLE FOR DEATH INJURIES
19. rinding wheel dresser and dress the wheel face Keep the fool rest and spark guard to within 1 16 of the grinding wheel See the Adjustment section to adjust 11 Adjustments Eye Shield Tilt Adjustment 1 Loosen lock knob A Fig 3 2 Adjust eye shield to the desired tilt angle As Fig 3 Spark Guard As the wheel wears down the spark guards must be re adjusted to maintain a 1 16 distance To adjust 1 Loosen two hex cap screws B4 Fig 3 with a 10mm wrench 2 Slide the spark guard B2 Fig 3 to 1 16 distance from the grinding wheel surface 3 Tighten screw B4 Fig 3 Figure 3 Tool Rest As the wheel wears down the tool rests must be re adjusted to maintain a 1 16 distance 1 Loosen two hex cap screws C4 Fig 3 with a 12mm wrench 2 Slide the tool rest C2 Fig 3 to a distance of 1 16 from the grinding wheel 3 Tighten screws C4 Fig 3 Maintenance For safety turn the switch to OFF and remove plug from the power source outlet before adjusting and maintaining the bench grinder If the power cord is worn cut or damaged in any way have it replaced immediately Ring Test Before replacing a grinding wheel perform this simple test on the replacement wheel 1 Loop a piece of string through the grinding wheel hole and suspend the wheel by holding up the string 2 Tap the wheel with a piece of scrap wood or a wooden dowel A good wheel will ring a defec
20. rring obligations AWARNING Read and understand the entire contents of this manual before attempting assembly or operation Failure to comply may cause serious injury Unpacking Separate all parts from the packing material Check each part against the Contents of the Shipping Container and make certain that all items are accounted for before discarding any packing material Contents of the Shipping Container 1 Bench Grinder not shown 1 Hardware contents listed below Hardware 1ea Bracket Left A 2ea LockKnob B 1ea Bracket Right C lea Spark Guard Left D 2ea 1 4 x 1 2 Screw E lea Spark Guard Right F 2ea Eye Shield Bracket Plate G 4ea 5 16 x 3 4 Hex Cap Screw H 4ea 5 16 Flat Washer J 4ea 3 16 x 3 8 Pan Head Screw K 4ea 1 4 x 3 8 Hex Cap Screw L 6ea 1 4 Flat Washer M 2ea 1 4 Lock Washer N 1ea Tool Rest Left O 1ea Tool Rest Right P 2ea Eye Shields Q Tools Required for Assembly 10mm and 12mm Wrenches No 1 or No 2 Cross Point Screwdriver Q f f Figure Hardware Assembly Your bench grinder requires only the assembly of the eye shields and tool rests For your safety do not plug the grinder into a power source until all adjustments are complete An adjustable wrench and a Phillips screwdriver are the only tools you will need to make all normal adjustments and wheel changes on this grinder AWARNING Be sure that the bench grinder is
21. s breakage of parts mounting and any other conditions that may affect its operation A guard or other part that is damaged should be properly repaired or replaced Provide for adequate space surrounding work area and non glare overhead lighting A Warnings 21 22 23 24 25 26 2T 28 29 30 31 Make your workshop child proof with padlocks master switches or by removing starter keys KEEP WORK AREA CLEAN Cluttered areas and benches invite accidents DON T USE IN DANGEROUS ENVIRONMENT Don t use power tools in damp or wet locations or expose them to rain Keep work area well lighted Keep the floor around the machine clean and free of scrap material oil and grease Keep visitors a safe distance from the work area Keep children away Give your work undivided attention Looking around carrying on a conversation and horse play are careless acts that can result in serious injury Use only flanges furnished with the grinder Maintain a balanced stance at all times so that you do not fall or lean against the grinding wheels or other moving parts Do not overreach or use excessive force to perform any machine operation Use grinding wheel suitable for speed of grinder Do not force a tool or attachment to do a job for which it was not designed The right tool will do the job better and safer DISCONNECT TOOLS before servicing when changing accessories such as blades bits cutters and the like Use re
22. safe operation and maintenance procedures for the JET JBG Series Bench Grinders This manual contains instructions on installation safety precautions general operating procedures maintenance instructions and parts breakdown This machine has been designed and constructed to provide years of trouble free operation if used in accordance with instructions set forth in this manual If there are any questions or comments please contact either your local supplier or WMH Tool Group WMH Tool Group can also be reached at our web site www wmhtoolgroup com Specifications Modeli i tup ictu prede JDBG 6A carii ies JBG 8A JBG 10A Stock Number iiit geleitet DU TION utei 571102 iiie 577103 Overall Dimension L x H x D in 18 x 10 1 2 x 8 1 2 19 x 12 1 2 x 10 24 1 2 x 12 1 4 x 13 Wheel Size D x W x Bore in GXIA R 1 2 itas S T1X95 8 acinis 10x1x1 Wheels Included Grit esses 36 8 60 Lites 36 amp o O eiii 24 amp 46 loop ates 1 2HP 120V 1Ph 1HP 120V 1Ph 1 1 2HP 120V 1Ph Motor RPM isr uiii ti ree ot prie iei 3450 tiras SADO ug 1 725 Gross Weight BS Jorn aa SO EI AR E TEA GO REE tata 119 The above specifications were current at the time this manual was published but because of our policy of continuous improvement WHM Tool Group reserves the right to change specifications at any time and without prior notice without incu
23. t ERE eps 1 Eye Shield Plate EE 1 Eye Shield Plate right iecore ctt ee ete o eta iia 1 Eye Shield Plate right sinisiin emm 1 Lock Hub JBG 6A 8A sse d ides oh deco etos 2 Cross SOEN E MUA incida 4 EyeShield dr e ua rep teet a P da 2 Eye Shield Assembly oi iin ede derat eden o PR 2 Eye Shield nni aee ne et ERU S 2 Eye Shield Assembly ernannt e Re Rink 2 Eye Shield ci ned aped nc me ge i 2 Eye Shield Bracket Plate 2 Eye Shield Bracket Plate A 2 Identification Label 4er dat 1 Identification Label 1 Identification Label i 5 2 1 irre An AAE EAR RR cere 1 Direction Label onini eine Genere ee in 2 Rubber Foot OA GA dbi ia 4 ee 1 SM EE 1 Switch Seat Rm 1 Centrifugal Start Switch sssssssses seems 1 Centrifugal Start Switch sss seen 1 Centrifugal Start Switch esssssssss seems 1 Assembly Drawing 18 Wiring Diagram Replacement Parts Replacement parts are listed on the following pages To order parts or reach our service department call 800 274 6848 between 7 30 a m and 5 30 p m CST Monday through Friday Having the Model Number and Serial Number of your machine available when you call will allow us to serve you quickly and accurately J E T WMH Tool Group 2420 Vantage Drive Elgin Illinois 60123 Phone 800 274 6848 www wmhtoolgroup com
24. tive wheel will thud Discard any wheel that does not ring An internal defect may not be apparent by visual inspection alone The ring test may uncover an internal crack or void Care of Grinding Wheel In normal use grinding wheels may become cracked grooved rounded at the edges chipped out of true or loaded with foreign material Cracked wheels should be replaced IMMEDIATELY While any of the other conditions can be remedied with a dressing tool available at most hardware stores new wheels sometimes require dressing to make them round Changing Wheels If you must replace a wheel be sure to obtain one with a safe rated speed at least as high as the NO LOAD RPM marked on the grinder s nameplate Refer to Table 2 to determine correct dimensions for the replacement wheel Model Wheel Maximum Center Diameter Width Hole JBG 6A 6 3 4 1 2 JBG 8A 8 3 4 5 8 JBG 10A 10 1 1 Table 2 Your bench grinder will accept most polishing and buffing wheels available at dealers and hardware stores AWARNING The use of any other accessory is not recommended and may result in serious injury To change a wheel refer to Figure 4 1 Disconnect grinder from the power source 2 Loosen the spark guard A and tool rest B refer to the Adjustment section on page 11 and move the spark guard and tool rest away from the wheel 3 Remove the guard cover using a Phillips or flathead s
25. ual see Short circuit Cord plug or motor need repair call WMH Tool Group Customer Service Department Motor fails to develop full power Low line voltage Check power line for proper voltage Faulty motor or capacitor Call WMH Tool Group Customer Service Department Motor overheats Overload on motor Reduce load to motor do not press so hard Poor ventilation for motor Unplug and clean out around motor provide better air circulation Capacitor failure Call WMH Tool Group Customer Service Department Motor stalls or slows Motor overload Reduce load to motor do not press so hard Low line voltage Check power line for proper voltage Loose wire connections Call WMH Tool Group Customer Service Department Faulty motor Call WMH Tool Group Customer Service Department Frequent fuse or circuit breaker failure Motor overload Reduce load to motor do not press so hard Overload of electrical circuit Too many electrical appliances on same circuit Incorrect fuse of circuit breaker Have electrician upgrade service to outlet Parts and Assembly Parts List Index No Part No Description Size Qty T exe JBG6A 02P Shaft and Rotor Assy e e EAA EAEE KREA AAAA RANEE seen 1 ETT JBG8A 02P Shaft and Rotor ASSY eesi enekin uaaa earar EEA EKKE ees T E JBG10A 02P Shaft and Rotor ASSY A Td Susie JBG6A 03
26. unplugged and the power switch is in the OFF position AWARNING Do not plug in the grinder to power until it is inspected for shipping damage fully assembled and moved to itis permanent location Failure to comply may cause serious injury AWARNING Do not operate this grinder without all guards and shields in place and in working order Failure to comply may cause serious injury AWARNING Chipped or cracked wheels can break up and cause serious damage to the grinder and or severe injury to the operator Regularly inspect wheels for damage Assembling the Spark Guard and Eye Shield Mounting Brackets Parts needed Brackets D see Note Lock Knobs A Spark Guards C see Note 1 4 x 1 2 Screws F 1 4 Flat Washers B 1 4 Lock Washers E Note Brackets D and spark guards C are marked L G Fig 1 for left side assembly and R for right side assembly 2 2 2 2 2 2 EN Assemble the left spark guard and eye shield mounting bracket using Figure 1 as a guide Make sure the spark guard and bracket is marked L Io Assemble the right assembly in the same manner Figure 1 Installing the Spark Guard and Eye Shield Mounting Brackets Refer to Figure 2 Parts needed 2 Spark Guard and Eye Shield Brackets assembled from previous page 4 1 4 x 3 8 Hex Cap Screws E 4 1 4 Flat Washers F 1 Install the left spark guard and mounting bracket A to the left wheel housing M wit
27. wer d re EE 1 COS OOO Wirth e arch 3 16x3 8 woos 1 Star Washer o orte tai 3 10 tara deut 1 Cl EE Tu 1 Clos iate eer eot emat esed etate de o ob ed e Tte eer eee ati 1 Clip sette lta tenete oue taeda Reet uad uter ds teed tddi 1 Hex Nut JBG 10A only not shown csse 2 SO NU Aa i ea 1 SWitchs sds TE EM 1 Switch w JBG10A 45 idet en te ERI nitate 1 Switch Plate a hei aie ene Maes 1 Switch Plate iem cec tee ecd ve pte ed recen det 1 Switch Plate re JBGiOA A4 semen 1 ler m ERES 3 16X1 4 2 Base E enc ld des 1 Base Plate xu eR IIR ci at tate edness 1 Base Plate s c mte tm t ee alado ede 1 Gross SO Wii ds 3 16X1 2 ds 4 Gross SGIQW 5 oed edo eese forts 3 16x1 2 ni 4 COS SO ee 4 Eye Shield Plate left ct ta daas 1 Eye Shield Plate left poa tee da nidad 1 Eye Shield Plate left nint oett dete ta tee out tea d 1 Eye Shield Plate night vise 2 nint rege penas 1 Eye Shield Plate right et etat 1 Eye Shield Plate right nitet Pete ttes denas 1 Kock Washer iter te cts VAM incite a 2 Elat WasliGE ie eerte etos TA ntc eit tete roit 6 CrOSS SCIe Wo e e T EUH CH el EE 2 Gross EE MA Litros 2 jer Wi ii cx 4 Parts Lis Index No t Part No JBG6A 54 JBG6A 55 JBG8A 55 Description Size Qty CT OSS Willis WA ui rs 4 Eye Shield Plate efto ore tec latas mili 1 Eye Shield Plate licua ia ce et eat e Rte 1 Eye Shield Plate eft eie ek et ee ep ee
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