Powermatic 3520B User's Manual
Contents
1. 31 Parts List Headstock ASSemibly oso 32 Stand and Bed Assembly iiic REN ERES COE SERERE COR EE EUREN ED QR DONE 34 Parts List Stand and Bed Assembly 35 Optional Accessories Bed Extensions 36 Optional Accessories Outboard Turning Stand 37 Optional Accessories Adapters Face Plates and Tool Supports 38 Optional Accessories Dust Port 39 Electrical Gorinections cues ad dada e edi dete al 40 Electrical Remote ON OFF Switch Optional 41 Warnings 18 19 20 21 Read and understand the entire owners manual before 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 Lathe 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 Lathe do not use until proper training and knowledge have been obtained Do not use this Lathe for other than its intended use If used for other purposes WMH Tool Group disclaims any real or impl2. een 14 5 14 Live Center and 15 Indexer ae ete 15 Centers Installing and REMOVING sisi 15 Face Plate Installing and Removing ss 16 Comparator Installing and Using sis 16 Speed Chanje P ERE ET 17 Sheave and Belt Alignment iii 18 Checking Spindle 18 Sheave Drive Belt Replacement iii 18 Operating COMMIS ave 19 ieri 20 92 29 21 Spindle 10889 cbe ee MEE 22 Cutting 6 cM 23 Face Plate and Bowl Turning 25 Bowl Turning Fechniques c E GRE EEUU GE ERES EO CE ERE EE EE EE 26 Maintenance 27 Indexer POSITIONS 28 29 Recommended Lathe Speeds per diameter Of 30 30
3. 5 16 18x3 8 1 87 3520 287 Slide sisi 1 88 3520B 288 Slide 1 89 6295796 Nyloc Insert Socket Set 1 4 20x3 8 2 90 3520B 290 FO 1 O1 3520 291 Retaining Collar 1 3520 292 BASS RSR 1 3520 293 Inverter ss 2 94 3520 294 Warning ss 1 3520B 295 Cord Snap Ring sise 1 3520 296 Phillips Pan Head Machine Screw M3 0 5Px10 3 33 Stand and Bed Assembly Parts List Stand and Bed Assembly Index No Part No Description Size Qty lisa 3520B 101 Bed usd eo d e e t eus 1 P 84 3520B 102 beg eee e ee debes 2 ictus 6295754 SOP p DD 2 6294797 Tool Rest Support Assembly includes index 4 thru 12 1 dise 3520B 104 Tool Rest Support senes 1 3520B 105 Erd G0V6lso side to 1 Gas
4. 77777 2 3520B 405 Hood Support Collar de Musee 1 3520B 406 Hood Ad aloo peepee nus a croc errr 3 hs 3520B 407 SUPPORT 1 Brass 3520B 408 ss sers is 1 NE EY TS 1482021 Hex Cap M6x12 4 5 2361061 Lock Washer aeree ss M6 rss 4 fasse 3520B 411 Support tete ehh 1 fase 3520B 412 Eockcblandle 2 39 Electrical Connections amm S 4 yovig E HOLSIS3H N3349 LOL QV31 H3MOd PIE LOANNOOD AlddNS H3MOd 3SVHd HOJ 31ON AlddnsS 3SVHd 3SvHd L AO0 Z N3389 OM me X 313WOILN310d UIVNOILdO HOLIMS 3LOW3H N33H5 8 ano sw _ HOLIMS TINd HSNd MOTI3A HOSN3S Suomn euuo 2129 3 OYE 80046 40 Electrical Remote ON OFF Switch Optional Accessory NOTE Lathe can only operate whe
5. Offset Tool Support 1 00 diameter 1 Bien 62958998 Offset Tool Support Casting 1 00 hol6 1 2695026 Screw Lock ss 3 Dsl 3423055 Turning Stand ee te 1 Gina 6861700 Lock DIS eee 2 TER 6769002 Socket Head Cap Screw 2 9 37 Optional Accessories Adapters Face Plates and Tool Supports Index No Part No Description Size Qty Ai 6294 734 Spindle Adapter 1 1 4 8 to 1 1 2 8 6294735 Spindle AORERE ERRIETA 6294 745 Ball Bearing Tailstock Center not shown Assess 6294736 3 T1440 bo 6294737 4 Face Plate 151748 eee eee 6294738 77 Face Plate tials 151 4 8 tees 6294733 Remote ON OFF 6294730 12 Metal Spinning Tool Support Assembly includes items 8 9 ER 12 Metal Spinnin
6. Adjustments Headstock and Tailstock Movement To slide the headstock or tailstock swing the locking handle A Figure 14 backward or forward until the headstock tailstock can slide freely When the headstock tailstock is positioned rotate the locking handle to tighten it securely Recommended Gauges AWG of Extension Cords M feet feet feet feet feet feet CONG E Free pepepe Des pw pw pep ps Ese pw pe pepe pe Fees pe s based on limiting the line voltage drop to 5V at 150 of the rated amperes NR Not Recommended Figure 13 13 To remove headstock tailstock or toolrest base from the bed unscrew and remove either of the stop bolts B Figure 14 After re mounting these items on the Lathe re insert the stop bolt For most turning operations except outboard turning the headstock should be positioned at the left end of the bed and only the tailstock moved to accomodate the workpiece Cam Tightness If the headstock tailstock or tool rest base does not tighten properly down against the Lathe bed when the locking handle is tightened it may need adjusting Figure 15 uses the tailstock as the example 1 Unscrew and remove the stop bolt on the end of the lathe bed B Figure 14 and slide the tailstock off the end of the bed 2 Turn the tailstock on its side and tighten the lock nut
7. C and D are the holes in the head casting The holes in the spindle collar be considered as numbered 1 through 12 Example You wish to rout 9 flutes on your spindle blank Locate the 9 in the No of Flutes column each flute angle will be 40 The index pin should first be inserted into hole combination A 1 Make your first flute at this position Back off the index pin and rotate the spindle until the index pin can be inserted into hole combination A 5 this will be followed by 9 Succeeding flutes will be made with the index pin in the B position B 2 B 6 and so on No of Flutes Angle Letter Letter Letter Letter 360 divided by 1 360 00 1 2 180 00 1 7 3 120 00 1 5 9 4 90 00 A 1 4 7 10 5 72 00 6 60 00 1 3 5 7 9 11 8 45 00 1 4 7 10 D 2 5 8 11 9 40 00 1 59 2 6 10 C 4 8 12 10 36 00 12 30 00 1 12 15 24 00 16 22 50 18 20 00 1 3 5 7 9 11 2 4 6 8 10 12 C 2 4 6 8 10 12 20 18 00 24 15 00 A 1to 12 D 1to12 30 12 00 36 10 00 A 10 12 B 10 12 C 11012 other interesting patterns 18 20 00 1 3 5 7 9 11 B 1 3 5 7 9 11 1 3 5 7 9 11 NOTE A dashed line indicates that particular set of
8. Quill Lock Sleeve ts 1 24 3520B 124 cer 1 3520B 125 Tailstock Handwheel 1 26 3520B 126 Tailstock Handle 1 6430045 Maret 1 28 5 x52 3268217 Eie 1 3092095 1 On 6095038 1 53 1 55555 3708012 Tailstock Clamping 1 O2 ee 5 0640091 Nylon Lock Hex 2 0042222 3 8 16 1 E e 5 1490021 Cap 8 16 1 3520B 134 Gover Plate ee 1 6295717 Eock Knob oen 0 1 TS 081C022 Phillips Pan Head Machine Screw 10 24X3 8 2 Of TS 0270011 Socket Set Screw 5 16x1 4 2 3096008 0 1 6760102 Set SCIOW a r 10 32 1 1 6294774 Powermatic Name
9. As you turn bowls from green wood make sure you maintain a consistent wall thickness throughout the piece Leaving a piece thick in some areas and thin in others will cause the wood to dry unevenly and promote checks and cracks Distortion Distortion is a problem associated with turning green wood It will vary from one type of wood to the next Typically fruitwoods tend to distort more than others It also varies with the time of year the tree was cut and how the logs are stored Tools for Bowl Turning The deep fluted bowl gouge is the most essential and versatile tool for most bowl and plate turning The bowl gouge is heavier and easier to control than other types of gouges It also allows removal of wood much faster and with less vibration than other gouges Most average sized bowl work can be accomplished with a 3 8 or 1 2 bowl gouge A 1 4 bowl gouge is best suited for smaller bowls and light finishing cuts Larger 3 4 and 1 bowl gouges are only used for extremely large pieces Large domed scrapers can also be used to help clean up the interior surfaces of bowls A light touch with the scraper slightly tilted will eliminate some of the ridges occasionally left by an inexperienced bowl gouge Bowl Turning Techniques To Shape Outside of Bowl 1 Odd shaped burls crotches and other irregular shaped blanks require special preparation before mounting in a chuck or onto a faceplate Remove the bark if there is any
10. Maximum distance between spindle face and tailstock quill in 36 Swing over bed iri coire 20 Maximum overall length 73 Overall height to top of headstock in 49 1 2 Distance from floor to centerline of spindle nen 45 Spindle speeds RPM iii high 125 3200 low 50 1200 ee 552 r TEFC 2HP 220V 60Hz Lathe power requirements iii 220V 3Ph or 1Ph Spindle thread size in sise 1 1 4 x 8 TPI Headstock spindle taper cete tte testet uteris tuu pure toe ee deett 2 Morse RE Eee tapera EDU 2 Morse Hole through tailstock spindle diameter in nnn 3 8 Hole through headstock spindle diameter ss 5 8 Drive HERD Poly V belt inverter drive Tailstock Quill 4 555 1 4 1 2 FOOIDNNUOE Stand 5 eic der An 50 L x 24 W Spindle directions a forward reverse DEUS NISI MN 630 Shipping Weight ne ee 682 The above specifications were current at the time this manual was published but because of our policy of continuous improvement WMH Tool Group reserves the right to change specifications at any time and without prior notice witho
11. SEL SCTEW ete 10 24 1 1 se Flat Head Socket 3 8 16 1 4 PO ilies 3520 275 Spindle Comparator Spur Center 1 JWL1642 183 te e Sue a bete Se Ub ee EL eeu 2 VE TS 0560071 la els ER 10 24 2 T9 t TS 081C082 Phillips Pan Head Machine Screw 10 24 1 1 2 2 TS 069204 WASNT ede inves HAO ee EL HS 2 801 es 1642 169 Braking Resistol A eae 1 6430047 ADA 1 3520B 282 LR 1 BS s 6295838 Phillips Round Head Machine M3x20 2 5 1490021 Cap M8X16 1 5 0267021 Socket Set Screw 1 4 20x1 4 2 ADM 6294754 Knockout Rod Assembly includes index 86 thru 92 1 86 5 0270031 Socket Set Screw
12. Tools tend to grab or dig in Dull tools Keep tools sharp see page 21 Tool support set too low Reposition tool support height See page 23 Tool support set too far from workpiece Reposition tool support closer to workpiece page 23 Improper tool being used Use correct tool for operation Headstock moves when applying pressure with Tailstock Excessive pressure being applied by tailstock more than 500 Ibs of force Slide headstock to the left end then apply pressure to workpiece with tailstock Apply only sufficient force with tailstock to hold workpiece securely in place Tailstock moves when applying pressure Cam lock nut needs adjusting Tighten cam lock nut Figure 15 Lathe bed and tailstock mating surfaces are greasy or oily Remove tailstock and clean surfaces with a cleaner degreaser Re apply light coat of oil to Lathe bed surface 29 Recommended Lathe Speeds per diameter of workpiece DIAMETER OF WORK ROUGHING RPM ale 2 150 3000 so Replacement Parts Replacement parts are listed on the following pages To order parts or reach our service department call 1 800 274 6848 between 7 30 a m and 6 00 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 30 Head
13. s Shelf Style 3 Figure 12 This is a basket style shelf consisting of two 2x6 s and dowel rods The advantage of this design is that most wood chips will fall through the shelf instead of accumulating on it The instructions below are for building the shelf shown in Figure 12 The completed shelf is shown on the front cover of this manual Materials used 2 2x6 s 48 suitable 48 1 2 optimal 8 wood dowels 4 length 5 8 diameter 11 18 Bed Ext Assy 6294727B see page 36 Figure 9 shown with optional accessories Figure 11 1 Mark your hole centers 2 centers along the length of a 2x6 Place the holes so that the tops of the dowels will be even with the tops of the ledges on the Lathe Also adjust your hole centers as necessary so that the first and last dowel will begin at approximately the same distance from the ledge at both ends of the Lathe 2 Use a 5 8 spade bit chucked in a drill press or in a portable drill Bore the holes through one 2x6 this will be the rear piece 3 On the other 2x6 do not bore through but only deep enough to securely hold the ends of the dowel rods This will be the front piece and will provide a_ pleasing appearance at the front of your Lathe 4 When all holes have been bored place the 2x6 s on edge in the outer ledges of the Lathe 5 Cut the dowel rods to length with a miter saw or hand saw so that after insertion the rods wil
14. Straight Bead Cove V Shoulders Figure 29 Figure 30 WORKPIECE Figure 31 22 7 Support the workpiece while bringing the tailstock into position about 1 away from the end of the workpiece Lock the tailstock to the bed 8 Advance the tailstock spindle with the handwheel in order to seat the live center into the workpiece Use enough pressure to secure the workpiece between the centers so that it won t fly off but do not use excessive pressure 9 Tighten the spindle locking handle ACAUTION The tailstock ram is capable of exerting excessive pressure against the workpiece and the headstock Apply only sufficient force with the tailstock to hold the workpiece securely in place Excessive pressure can overheat center bearings and damage both workpiece and Lathe 10 Move tool support into position It should be parallel to the workpiece just below the centerline and approximately 1 8 to 1 4 from the corners of the workpiece to be turned as in Figure 32 Tighten support base to Lathe bed 11 Rotate workpiece by hand to check for proper clearance 12 Start lathe at lowest speed and bring it up to the appropriate RPM for the size of workpiece used Consult digital readout on the headstock Cutting Techniques Roughing Out 1 Begin with a large roughing gouge Place the tool on the tool support with the heel of the tool on the surface to be cut 2 Slowly and gently raise tool handle u
15. clean the tapered end of the center and the inside of the headstock taper spindle then push the center into the headstock spindle 15 t i Index Pin Figure 19 3 To remove a spur center or live center first remove the workpiece from the Lathe Insert the knockout rod Figure 20 through the hole in the handwheel and firmly tap the tapered end of the spur center The sliding collar on the knockout rod helps give the necessary impact without having to use a mallet against the end of the rod IMPORTANT Hold the center by either placing your thumb and forefinger on the outside diameter of the spur center or wrapping the center with a rag The center can be damaged if allowed to fall Face Plate Installing and Removing 1 Disconnect Lathe from power source 2 Mount the face plate to your bowl blank 3 Push in the spindle lock button Figure 21 and rotate the handwheel slightly until the spindle locks Keep the spindle lock button pushed in 4 Install the face plate onto the threads of the headstock spindle and rotate clockwise hand tight When the Lathe is turned on forward rotation the rotational force will snug the face plate even further onto the threads AWARNING If at any time you will be reversing spindle rotation make sure the two set screws in the face plate are tight One of these is shown in Figure 22 Failure to do this may cause the face plate to loosen from the headstock sp
16. in LOW speed range position Sheave and Belt Alignment The motor and spindle sheaves are aligned with each other at the factory but if any service is performed that affects their alignment it is very important that they be realigned To realign them loosen the two set screws on the spindle sheave C Figure 25 with a hex wrench and slide the spindle sheave into the proper position Re tighten set screws When sheaves and belt are properly aligned there should be no unusual pulsing sounds or noise coming from the belt Checking Spindle Play The spindle bearing has been set at the factory for general turning applications There should be no end play or looseness along the spindle s axis If any looseness should ever occur it may be rectified by carefully tightening the bearing lock nut on the spindle as follows See Figure 26 1 Use a screwdriver to carefully bend back any tabs on the tabbed lock washer C Figure 26 that interfere with the insets B Figure 26 on the spanner nut 2 Place the end of a flat head screwdriver down against one of the insets of the bearing lock nut B Figure 26 3 Tap the handle of the screwdriver with a mallet so that it turns the spanner nut A Figure 26 tighter in a clockwise direction Rotate the spanner nut only about 1 16 at a time ACAUTION Do not overtighten the spanner nut or the spindle bearings will overheat 4 The spanner nut should be tightened just eno
17. sizing For safety and best performance keep tools sharp a tool stops cutting or requires excessive pressure to make a Cut it needs to be sharpened number of brand name sharpening jigs and fixtures are available however a woodturner should learn to sharpen tools freehand For best results use a slow speed grinder 1800 rpm fitted with a 60 grit aluminum oxide wheel for shaping and a 100 grit alum oxide wheel for final sharpening and touchup The grinder should be located near your lathe and at a comfortable height A diamond dresser will keep the wheels true and eliminate glazing Never allow the tool to rest in one place on the wheel keep it moving and use a light touch 21 Figure 28 Basic Turning Tools Carbon steel tools can overheat easily and should be cooled frequently If the edge turns blue it has lost its temper and should be ground past the blue area High speed steel tools are not as likely to overheat but can be damaged if allowed to get red hot High speed steel tools should not be quenched for cooling Honing with a diamond lap or slipstone will save trips to the grinder and keep the edge fresh Spindle Turning Spindle turning takes place between the centers of the lathe It requires a spur or drive center in the headstock and a live or dead center in the tailstock A cup center rather than a cone center in the tailstock will often reduce the risk of splitting the stock Figure 29 s
18. there are dozens of chucks to choose from the woodturner should first consider all the different types of turning that will be done and read reports or discuss with other turners who own chucks before making a decision A chuck is not a requirement but is handy when working on more than one piece at a time Rather than removing screws you simply open the chuck and change workpieces The most popular ones are four jaw scroll chucks with a variety of jaws to accomodate different size tenons Most also come with a screw chuck as well Wood Selection Firewood is the cheapest most widely available stock to use while learning to turn bowls Simply waste wood for a while practicing turning techniques Develop skill with each tool before attempting to make a finished piece It is best to start with dry wood without worrying about drying or distortion Once turning becomes comfortable try green wood which cuts very easily As the turner gains experience he or she will find extraordinary grain and figure in the form of burls crotches and bark inclusions Checks and Cracks Green wood will check and crack For best results leave logs in as long a length as you can handle As the material starts to dry surface cracks will develop on the ends of the log Cut off two to three inches and you should find good sound wood Also cut the log in half along the pith to avoid having it in the finished piece Most checks radiate from the pith
19. with a wrench See Figure 15 3 Mount tailstock on bed and insert the stop bolt Tool Support A 14 tool support is provided with your Lathe It is designed to allow adjustment for height position on the bed and angle to the work Loosen the locking handle on the tool support base C Figure 16 to slide the support base forward or back and to angle it to the bed Tighten the locking handle firmly before operating the Lathe Loosen the small handle D Figure 16 to raise or lower the tool support and angle it to the work Tighten the handle before operating the Lathe The small handle D Figure 16 can be inserted into one of three holes on the tool support base The position shown in Figure 16 is preferred so that the locking handle contacts the groove in the tool rest shaft Locking Handles Each small locking handle such as D Figure 16 can be rotated to a more convenient position Simply lift up on the handle rotate it on the pin then release it making sure it seats itself on the pin 14 Figure 16 Live Center and Cone The live center cone shown in Figure 17 screws clockwise onto the threads of the live center body To remove the cone from the live center first insert the live center pin through the hole in the live center body as shown in Figure 17 If the pin will not insert at first rotate the cone until the pin can be inserted The cone can now be removed by holding the body stationar
20. Locking Handles eee os eA eus 3520B 311 18 Bed Extension teste TS 0680042 Flat 5 0720091 Lock 3 8 tutes 5 020908 1 Socket Head 3 8 16 1 3 4 6294726B 50 Bed Extension Assembly includes items 7 thru 15 pa MEE 3520B 101 scio ME Pm Bie os 3520B 102 Loo EM ON M T 5 0570031 ME E EE 3 8 16 1 LOW eee 6442000 OVEl R Nat 5 0720091 Washer aiit 5 0209061 Socket Head Cap 3 8 x1 1 4 Se TS 0680042 Flat 31 87 14 5 0720091 Lock WaS gt ss 5 0209081 Socket Head Cap 3 8 16x1 3 4 36 Optional Accessories Outboard Turning Stand Index No Part No Description Size Qty 6294732 Heavy Duty Outboard Turning Stand Assembly items 1 thru 7 3042503 Stand Bases ots e tse ees 1 6295897
21. R 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 2 Table of Contents Warranty and Serviette contes nana ane eee 2 Tabl of Contents dd dd dada 3 Walia A A 4 LEE E E 6 A 6 Unpacking A 7 Contents of the Shipping sise 7 ncc DRM CERES 8 Comparator Rear Bracket sise 9 et 9 eio ES 9 Bed Extension Optional Accessory iii 10 Shelf Assemblies Optional sise 11 Grounding Instructions iii 12 Single Phase Operation iii 13 Three Phase Operation sisi 13 Extension 13 To JU unida dre da dress 13 Headstock and Tailstock Movement sis 13 ST M TOMA CCE 14 5
22. This Manual is Bookmarked POWERMATIC WMH TOO Operating Instructions and Parts Manual Woodturning Lathe Model 3520B IN NY Y shown with optional 18 inch bed extension and user made shelf WMH TOOL GROUP 2420 Vantage Drive Elgin Illinois 60124 Part No M 1352001 Ph 800 274 6848 Revision A1 8 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 Center 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 POWERMATIC 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 powermatic com WARRANTY POWERMATIC products carry a limited warranty which varies in duration based upon the product One Year Standard Industrial a option available on select Products POWERMATIC machines YEAR YEAR Bandsaws Shapers Brush Sanders Dust Collectors Rip Saws Dovetail Machines Jointers Cut off Saws Drill Presses Two Year Option Available Visit our distribu
23. angles is not possible with the indexer Figure 39 28 Troubleshooting Trouble Probable Cause Remedy Motor fails to develop full power Power line overloaded Correct overload condition Undersize wires in power supply system Increase supply wire size Faulty inverter Contact WMH Technical Service Worn motor Replace motor Motor or spindle stalls or will not start Excessive cut Reduce depth of cut Improper belt adjustment or worn or broken belt Adjust or replace belt as needed see pages 18 19 Improper cooling of motor Blow out sawdust from motor housing fan Worn spindle bearings Replace bearings Worn motor Replace motor Excessive vibration Workpiece warped out of round has major flaw or was improperly prepared for turning Correct problem by planing or sawing workpiece or discard entirely and use new workpiece Worn spindle bearings Replace spindle bearings Worn drive belt Replace drive belt See pages 18 19 Motor mount lock handle is loose Tighten lock handle A Figure 25 Lathe on uneven surface Adjust levelers Lathe runs at one speed only Potentiometer faulty Replace potentiometer Electronic AC inverter is not programmed properly or is defective or there is loose wiring Contact WMH Technical Service to help identify problem 800 274 6846
24. ation 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 thatthere is no defect or thatthe 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 handling and shipping 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 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 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 O
25. c dealer To mount the bed extension to the Lathe 1 Slide the tailstock away from the edge of the bed 2 Have an assistant hold the bed extension flush to the end of the Lathe bed and insert three 3 8 x 1 3 4 socket head cap screws three 3 8 lock washers and three 3 8 flat washers through the holes in the bed extension into the threaded holes on the Lathe See Figure 7 3 Shift the bed extension upward so that it is slightly higher than the Lathe bed Tighten the screws with an 8mm wrench just enough to hold the bed extension to the Lathe bed IMPORTANT The surface of the bed extension must be level with the surface of the Lathe bed to allow smooth movement of the tailstock across the seam 4 Use a dead blow mallet or a hammer with a block of wood to tap down the bed extension until it is flush with the Lathe bed See Figure 8 Never use a steel faced hammer directly against the bed surfaces Tap the bed extension where needed until its surface is aligned with the Lathe bed and the inside ways are aligned 5 Firmly tighten the three socket head cap screws Make sure your alignment of the bed surfaces doesn t shift while tightening the screws 6 Unscrew the stop bolt from the Lathe bed Figure 7 and screw it into the hole at the end of the bed extension Guard tilted back for stock loading Lock Washer Flat Washer Figure 7 optional 18 bed extension shown Inside ways must be aligned Surfac
26. cting 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 the safety guard in place at all times when the machine is in use If removed for maintenance purposes or for turning procedures which do not permit its use exercise extreme caution and replace the guard immediately after the operation is complete 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 parts 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 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 Make your workshop child proof with padlocks master switches or by removing starter keys 4 Warnings 22 28 24 25 26 27 28 29 30 31 32 Give your work undivid
27. ed attention Looking around carrying on a conversation and horse play are careless acts that can result in serious injury Maintain a balanced stance at all times so that you do not fall or lean against the centers workpiece or other moving parts Do not overreach or use excessive force to perform any machine operation Use the right tool at the correct speed and feed rate 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 Use recommended accessories improper accessories may be hazardous Keep turning tools sharp and clean for the best and safest performance and position the tools properly in relation to the workpiece 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 Lathe 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 Check the workpiece carefully for splits knots or other obstructions which may cause a safety risk while turning Adjust the tool support to the proper height and position for the work Rotate the workpiece by hand to check clearance with the tool support Select the appropriate speed for the turning job at hand Start at
28. el adu addu aaa DB 6295839 das 6821492 Switch FWo Revivi cin Aa addu 6295915 Control Pot Assembly S o 6813062 dco Aq OMM qo I NI 3601006 Spindle Lock Plunger ss 1 60 3520 260 Control Label si 1 6294786 Spindle Lock 1 6077228 Micro 2600 1 63 3719188 Spindle Sheave 1 64 3520 264 Locking Colars 1 3058001 1810 1 3092095 GlAMP 1 6520009 Nylon Lock Hex Nut HIS A tes 1 68 s 6294787 Power ise te AREE Ios 1 99 11 6294790 Motor EUM 1 JWL1642 165 Strain Relie ete Ld 3 TA idt 3520B 271 ere eee das 6294744 Face Plate Wrench iret el ei 1 TOs ete 3520 273
29. es must be aligned Figure 8 10 For outboard turning where the headstock is moved to the opposite end of the Lathe to accommodate large bowl blanks you can 1 mount the 18 bed extension to the three lower holes on the Lathe frame and 2 mount a vertical extension post optional accessory stock number 3520B 310 to the tool rest base See Figure 9 Shelf Assemblies Optional The double ledges on the inside of the Lathe legs will provide support for a shelf not provided which is convenient for storing larger items while keeping them easily accessible Figures 10 11 12 illustrate three methods of creating a shelf using common lumber and basic tools IMPORTANT TIP It is unlikely that a full size shelf can be completely built and then inserted between the Lathe legs Therefore construct the shelf in pieces and insert screws only after the shelf has been established beneath the Lathe Shelf Style 1 Figure 10 Lay two 2x6 boards flat upon the inner ledges Boards of 48 length are suitable although 48 1 2 is optimal Shelf Style 2 Figure 11 Lay two 2x4 s or 2x6 s on edge into the outer ledges Boards of 48 length are suitable 48 1 2 optimal Cut two pieces from a plywood board and screw them to the top edges of the 2x4 s One 48 plywood piece will not fit through the legs of the Lathe use at least two pieces Make the plywood pieces flush with the outside edge of the 2x4
30. from what appears to be the center of the top of the workpiece 2 Drive spur center into the top of the workpiece with a mallet or dead blow hammer 3 Slip the spur center into the headstock taper and bring the tailstock with a live or ball bearing center into position Lock the tailstock to the bed and advance the tailstock spindle in order to seat the cup center into the workpiece Tighten the ram locking handle 4 Turn workpiece by hand to ensure proper clearance 5 Start lathe at lowest speed and bring it up to the maximum safe speed for the size of work to be turned see page 30 If the machine starts to vibrate lower the speed until vibration stops 6 Rough out the outside of the with the 1 2 deep fluted bowl gouge holding the handle of the tool firmly against your hip For best control use your whole body to move the gouge through the workpiece 26 7 As the bowl takes shape work on the bottom tailstock end to accomodate attaching a face plate 8 Turn a short tenon about 1 8 long the size of the hole in the faceplate See Figure 37 This will allow centering the workpiece when the faceplate is attached TENON WITH DIAMETER OF FACE PLATE Figure 37 9 NOTE If you plan to use a chuck turn a tenon of the appropriate length and diameter to fit your chuck 10 Stop the lathe remove workpiece and attach face plate or chuck see Mounting Stock above AWARNING The surfaces
31. g Tool 1 disease 3585011 Tool Support 5 8x 495x3 50 2 6294731 26 Tool Support Assembly includes items 10 11 12 26 Tool SUDDOFL 1 AREE 6294795 TOG SUpport PoSL dae eb eet 2 laps 6716219 Socket Head Screw 3 8 16 6 1 4 2 Qo NE 6294740 Bowl Turning Tool Support R H sss Hdi 6294751 Bowl Turning Tool Support _ sss 6294744 16 Tool 16 6294739 TOO SUPPOM 6294742 14 Tool iii Y 2 SPINDLE EXTENSION 38 Optional Accessories Dust Port Assembly Index No Part No Description Size Qty ee 6294796 Dust Port Assembly includes index 1 thru 12 ee 3520 401 ower Dust alo e e ERA R E A tete rut 1 3520B 402 Upper Dust Hood sees et 1 3520B 408 Hood Lock Knob Female sse 1 m 3520B 404 Lock Washer External Tooth
32. he bed using eight socket head cap screws with eight lock washers and eight flat washers Figure 1 Tighten the screws firmly with a 8mm hex wrench 7 Screw the levelers into the threaded holes of the legs Figure 1 Tighten the hex nuts against the bottom of the legs with a 14mm wrench 8 The levelers be adjusted at any time to ensure the Lathe is stable and level 9 Set the Lathe right side up or remove it from the table 10 Exposed metal areas of the Lathe such as the bed and spindles have been factory coated with a protectant This should be removed with a soft cloth and a cleaner degreaser Clean the bed areas under the headstock tailstock and tool support base Do not use an abrasive pad and do not allow solvents to contact painted or plastic areas 11 Re install headstock tool support base and tailstock Comparator Rear Bracket Mount the comparator rear bracket A Figure 2 to the back of the tailstock with two 3 8 x 1 1 4 socket head cap screws two 3 8 lock washers and two 3 8 flat washers B Figure 2 The bracket has a slot so it can be aligned with the bracket on the headstock See Comparator Installing and Using for further information Tool Caddy The tool caddy shown in Figure 3 can be mounted to the left end or right end of the Lathe The left end near the headstock area is generally preferred for convenience Use two socket head cap screws and two lock washers wi
33. hows the basic profile shapes in spindle turning Stock Selection Stock for spindles should be straight grained and free of checks cracks knots and other defects It should be cut 1 8 to 1 4 larger than the finished diameter and may require additional length so the ends can be removed later Larger stock should have the corners removed to produce an octagon making the piece easier to rough down to a cylinder 1 With a combination square or plastic center finder for round stock locate and mark center on each end of the workpiece Accuracy is not critical on full rounds but extremely important on stock where square sections are to remain Put a dimple in the stock with an awl or nail or use a spring loaded automatic center punch 2 Extremely hard woods may require kerfs cut into the ends of the stock Figure 30 using a band saw so the wood will accept the spur center and the live center 3 Drive the spur center about 1 4 into the workpiece using a wood mallet or dead blow hammer as shown in Figure 31 Be careful that you do not split the workpiece Never use a steel face hammer and never drive the workpiece onto the spur center while it is mounted in the Lathe spindle 4 Make sure the headstock is locked to the Lathe bed 5 Clean the tapered end of the spur center and the inside of the headstock spindle 6 Insert the tapered end of the spur center with the attached workpiece into the headstock spindle
34. ied warranty and holds itself harmless from any injury that may result from that use Always wear approved safety glasses face shields while using this machine Everyday eyeglasses only have impact resistant lenses they are not safety glasses Before operating this Lathe 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 chemicals are e Lead from lead based paint e Crystalline silica from bricks cement and other masonry products e 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 Do not expose this machine to rain or operate machine in damp locations Make certain the switch is in the OFF position before conne
35. indle 5 To remove the face plate loosen the two socket set screws Figure 22 Engage the spindle lock button and turn the face plate counterclockwise with the face plate wrench as shown in Figure 21 Comparator Installing and Using The spindle comparator consists of two comparator centers inserted into the brackets at the back of the Lathe The comparator is used to mount a finished or reference spindle from which measurements can be taken the measurements being transferred to the new piece which is being turned AWARNING The guard must be removed to use the spindle comparator Use caution and wear a face mask when turning without the guard installed 1 Remove the guard from the headstock bracket Knockout Rod Spindle Lock Button Handwheel Face Plate Wrench jS 238 Figure 21 Figure 22 16 Install the comparator spur center into the headstock bracket by lifting up on the spring pin and inserting the comparator spur center until its point is about even with the point of the spur center in the headstock spindle See Figure 23 The spring pin in the bracket should engage one of the holes in the comparator center at this position Install the rear comparator center in the tailstock bracket and tighten the bracket handle See Figure 24 Mount the spur center with the spindle blank that you will be turning Loosen the tailstock locking handle and slide the tailstock until
36. ing Handle JWL1642 130A Digital Readout 3520B 238 7 0 29 xmas 3520B 239 DRO GOV el JWL1642 127 Tap Screw 2 M3x10 ATi s 5 0253031 Socket Head Button Screw 10 24 1 2 42 JWL1642 134 PAD SClOW awit tn TT 1 4 x1 2 5 1540011 NUE AA sss 5 2361031 LOCK Washer iii JWL1642 135 i e M 46 6295717 ss Adis 3520B 247 Door Panel NS 48 3520B 248 Speed Label 6708019 Socket Head Cap 88 32 5 8 6365012 Door HINGE bles 6295911 Ho 6860704 eiiis 8 6508007 NUE ER 8 32 3520B 254 Control Pan
37. ished workpiece 2 Always select the largest diameter face plate that can be used for the workpiece to be turned 3 True one surface of the workpiece for mounting against the face plate 4 Using the face plate as a template mark the location of the mounting holes on the workpiece and drill pilot holes of the appropriate size Face plates are drilled for No 12 screws Phillips and square drive screws will hold up better than slotted screws Sheel metal screws are case hardened with deeper and sharper threads than wood screws If the mounting screws on the face plate interfere with the workpiece a glue or waste block can be used 5 Make a block the same diameter as the face plate Figure 36 Both glue block and workpiece should have flat surfaces for gluing WORKPIECE FACE PLATE 12 C SUNK SCREWS WASTE BLOCK Figure 36 25 6 Glue the block to the workpiece Avoid using brown paper or newspaper between the block and workpiece It may work fine if you are using scrapers but a slight catch with a bowl gouge can separate the two NOTE When using a glue block be careful with the adhesive you select Dry workpieces can be bonded with ordinary white or yellow glue but must be clamped to ensure a good bond Green workpieces require cyanoacrylate type glue Faceplate or Chuck While faceplates are the simplest most reliable method of holding a block of wood for turning chucks can also be used As
38. l be flush with the back of the rear 2x6 6 Insert the dowel rods through the holes in the rear 2x6 as shown in Figure 12 7 A strip of wood can be screwed to the rear 2x6 to cover the dowel holes and prevent the dowels from working out Grounding Instructions AWARNING Electrical connections must be made by a qualified electrician compliance with all relevant codes This machine must be properly grounded to help prevent electrical shock and possible fatal injury This machine must be grounded In the event of a malfunction or breakdown grounding provides a path of least resistance for electric current to reduce the risk of electric shock 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 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 12 Figure 12 Repair or replace a damaged or worn cord immediately The Lathe will operate on single phase or three phase 230 volt power supply The Lathe should be connected to a dedicated circuit Make sure the characteristic
39. lathe back on and continue the separation cut almost all the way through the base Stop at about 3 and use a small fine tooth saw to separate the bowl from the waste 5 Apply second finish coat and allow to dry before buffing Maintenance AWARNING Before doing maintenance on the Lathe disconnect it from the electrical supply by pulling out the plug or switching off the main switch Failure to comply may cause serious injury Maintenance on the 3520B Lathe should be performed at periodic intervals to ensure that the machine is in proper working order that all fasteners tight and all necessary adjustments have been made Inspection and maintenance should be performed at least twice a year but more frequently if the Lathe receives constant use Clean and oil the lathe bed s so that headstock tailstock and tool support base will slide easily Clean any rust spots that may develop on the bed with a commercial rust remover Use compressed air to blow out the interior of the headstock in order to keep sawdust and chips from accumulating on belts and sheaves Also blow off debris that accumulates on the inverter Do not disassemble inverter to clean Frequently clean out the morse tapers on both headstock and tailstock Commercially available taper cleaners may be acquired from tool stores Indexer Positions How to use the chart The indexer is shown as viewed from the tailstock end of the Lathe Points
40. le 8 Install the new spindle sheave loosely securing the two set screws Make sure the sheave is oriented properly 9 Slide the spindle back into place install tabbed lock washer C Figure 26 and bearing lock nut B Figure 26 Check for any spindle play at this point See Checking Spindle Play section 10 Re install the handwheel and tighten the set screws A Figure 26 11 Align the new sheave see Sheave and Belt Alignment then tighten the two set screws C Figure 26 securely on the sheave 12 Loosen the pivot lock handle and lower the motor using the tension handle Re tighten the pivot lock handle Operating Controls See Figure 27 A On Off Button Push in to stop the machine pull out to start the Lathe NOTE there 15 a power outage while operating the Lathe the Lathe will not automatically restart once power is restored Cycle the on off switch in order to restart the machine 19 Figure 27 BE LOW 0 1200 HI 0 3000 POWERMATI B Forward Reverse AWARNING When turning with a face plate make sure both set screws on the face plate are tight see Figure 22 before reversing the spindle Failure to comply may cause the face plate to spin loose from the spindle C Speed Control Dial Always start the Lathe at the lowest speed with the dial rotated all the way counter clockwise A C Inverter mounted to rear of headstock The 3520B Lathe uses the latest technol
41. low speed and allow the Lathe to ramp up to operating speed Never stop a rotating workpiece with your hand If gluing up a workpiece always use a high quality glue of the type necessary for that particular workpiece Familiarize yourself with the following safety notices used in this manual ACAUTION This means that if precautions are not heeded it may result in minor injury and or possible machine damage AWARNING This means that if precautions are not heeded it may result in serious injury or possibly even death SAVE THESE INSTRUCTIONS Introduction This manual is provided by WMH Tool Group covering the safe operation and maintenance procedures for a Model 3520B Lathe 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 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 Model WT UT REM 3520B SLOG NUMO sistit M 1352001 Working distance between centers in ss 31 1 2 Working distance between centers 18 bed extension mounted 48
42. mar 3520 106 GING e ues 1 DEDE 6710015 Socket Head Cap 10 24 1 2 4 3520B 1068 Tool S pport BO IE ee 1 Deere 62947963 Locking Handle he RAR RS ARR MR LA eie 2 10 3520B 110 ER REDE 1 6294770 CAMP 1 2 0650081 Nylon Lock Hex Nut 3 4 10 1 TS 62947492 Tool Support endet 1 Mt E 6295902 Live Center Assembly includes index 14 thru 17 1 14 ns 6295905 Live Center Cone sisi 1 15 s 6295904 Live Center Tip sis 1 16 6295903 Live Center 1 T sess 6295906 Live Center Rod sisi 1 18 3520B 118 LM LM 1 6295909 1 20 5 0560071 110 24 1 21155 25 3520B 121 Set SCTEW nennen 10 24 3 4 1 22 6295910 Lock Handle is 1 232 3728005
43. n both the headstock and remote switches in the position To mount the remote switch to your Lathe proceed as follows 1 2 Disconnect all electrical power to the Lathe Remove the two screws from the control panel Do NOT disconnect control panel from wiring harness Run the remote switch s wiring harness through the opening in the back of the headstock and out through the front of the headstock Connect the remote switch s wiring harness to the back of the Push Pull switch refer to the electrical schematic on page 40 Reinstall the control panel to the headstock From the back of the headstock lightly pull out any excess wire that may be inside the headstock The magnetic back on the remote switch will allow the switch to be placed anywhere on the Lathe Connect electrical power to the Lathe and resume operations 41 NOTES 42 43 POWERMATIC WMH Tool Group 2420 Vantage Drive Elgin Illinois 60124 Phone 800 274 6848 www wmhtoolgroup com
44. n tool support and raise the handle until it starts to cut and continue to cut toward the center of the workpiece 4 Loosely hold on to the piece in one hand as it separates from the waste wood Sanding and Finishing Leaving clean cuts will reduce the amount of sanding required Move the tool support out of the way adjust the lathe to a low speed and begin with fine sandpaper 120 grit or finer Coarser sandpaper will leave deep scratches that are difficult to remove and dull crisp details on the spindle Progress through each grit without skipping grits for example do not jump from 120 grit to 220 grit Fold the sandpaper into a pad do not wrap sandpaper around your fingers or the workpiece To apply a finish the workpiece can be left on the lathe Turn off the lathe and use a brush or paper towel to apply the finish Remove excess finish before restarting lathe Allow to dry and sand again with 320 or 400 grit sandpaper Apply second coat of finish and buff Face Plate and Bowl Turning Face plate turning is normally done on the inboard side of the headstock over the bed Larger workpieces must be turned on the outboard side remove tailstock and tool support base and move headstock to opposite end of bed See Figure 9 Mounting Stock Use of a face plate is the most common method for holding a block of wood for turning bowls and plates 1 Select stock at least 1 8 to 1 4 larger than each dimension on the fin
45. ndplay exists 3 Check belt it should be snug but not overly tight 20 4 Bed ways keep clean use steel wool to remove any rust spots and apply paste wax to prevent buildup of rust and finishes 5 Tool support use a mill file to remove nicks and dings 6 Spindle tapers should be clean and free of dust and chips for proper seating of tapers 7 Tailstock clean and lubricate ram and locking device Lighting proper lighting is essential to eliminate shadows and reduce eye strain Turning Tools If possible select only quality high speed steel turning tools High speed steel tools hold an edge and last longer than ordinary carbon steel As one becomes proficient in turning a variety of specialty tools for specific applications can be acquired The following tools provide the basics for most woodturning projects see Figure 28 Skews 1 1 2 and 1 or 1 1 4 used to make finishing cuts and details Large Roughing Gouge 1 to 1 1 4 used to eliminate waste wood Spindle Gouges 1 4 3 8 1 2 used to turn beads coves and other details Deep Fluted Bowl Gouge 1 4 3 8 and 1 2 used for turning bowls amp plates Square Scraper Bedan 3 8 or 1 2 used to create square shoulders Large Round Nose Domed Scraper 1 1 2 used to reduce ridges on interior of bowls round edges of bowls etc Parting Tool 1 8 used for scraping making a cut off or to set diameters for
46. nne nen 1 ees 6644005 3064711 Lathe Guard 19 6294728 Safety Guard JWL1642 164A Inverter 15521 2HP 220V A ERRER 6710015 Socket Head 10 24 1 2 22553 JWL1642 170 Signal 23 55 3520 223 Headstock Clamping 24 5 0640091 Nylon Lock Hex Nut 3 8 16 6095038 MES 6430045 KNOD Me OL iod 3268219 Handle Headstock 28 3719189 Motor 29 2595036 Motor Assembly Plate nemen E 5 0720091 Lock Washer 5 0209061 Socket Head Cap Screw 3 8 16x1 1 4 Ce 3520B 232 CP 2HP 220V 60Hz JWL1642 166 Bracket te TS 0680042 Flat 2 6350031 Motor Plate Lock
47. ntil cutting edge comes into contact with the workpiece 3 Beginning about 2 from the tailstock end of the workpiece roll the flute hollowed out portion of the tool in the direction of the cut See Figure 33 Make long sweeping cuts in a continuous motion to rough the piece down to a cylinder 4 Keep as much of the bevel of the tool as possible in contact with the workpiece to ensure control and avoid catches NOTE Always cut down hill or from large diameter to small diameter Always work toward the end of a work piece never start cutting at the end 23 CENTER LINE Barca OF cue TON n to 1 4 Figure 32 Figure 33 TOOL SUPPORT SPINDLE TE 5 Once the workpiece is roughed down to a cylinder smooth it with a large skew Keep the skew handle perpendicular to the spindle and use only the center third of the cutting edge for a long smoothingcut touching one of the points of the skew to the spinning workpiece may cause a catch and ruin the workpiece 6 Add details to the workpiece with skew parting tool scraper or spindle gouge Beads 1 Make a parting cut for what is to be a bead to the desired depth Place the parting tool on the tool support and move tool forward to make the full bevel of the tool come in contact with the workpiece Gently raise handle to make cut to the appropriate depth Repeat for other side of the bead Using a small skew or spindle gouge start in the cente
48. of faceplate and workpiece should mount flush to each other 11 Finish turning the outside of bowl with 1 2 3 8 bowl gouge Leave additional material at base of bowl for support while turning interior This will be removed later To Shape Interior of Bowl 1 Stop the lathe and move tailstock away You may want to remove the center from the tailstock to prevent bumping it with your elbow 2 Adjust tool support in front of the bowl just below centerline at a right angle to the lathe ways 3 Rotate workpiece by hand to check clearance 4 Face off top of bowl by making a light shearing cut across the top of workpiece from rim to center 5 Place 1 2 bowl gouge on tool support at center of the workpiece with the flute facing top of bowl The tool handle should be level and pointed toward the four o clock position as shown in Figure 38 WORKPIECE Figure 38 6 Use the left hand to control cutting edge of gouge while right hand swings tool handle around toward your body Figure 38 The flute should start out facing top of workpiece and rotate upward as it moves deeper into the bowl to maintain a clean even curve As the tool goes deeper into the bowl progressively work out toward the rim It may be necessary to turn the tool support into the piece as you get deeper into the bowl NOTE Try to make one very light continuous movement from the rim to the bottom of the bowl to ensure a clean swee
49. ogy in A C inverter drives to provide infinitely variable spindle speeds within the specified ranges shown under Specifications on page 6 The inverter controls the speed of the motor by varying the frequency of the voltage supplied to the motor The inverter provides an acceleration ramp that eliminates the shock of normal starting Also a braking feature eliminates long coasting periods after the Lathe is turned off The 2 horsepower motor is specially designed for use with inverter drives and is balanced to reduce noise and minimize vibration The A C Inverter does not require any programming it is pre programmed from the factory The buttons on the face of the inverter should never be pushed at any time Use only the controls on the front of the headstock If you suspect there is a problem with the inverter or the inverter settings contact WMH Tool Group technical service at 1 800 274 6848 Operation The information which follows is general in nature and is not intended to be a complete course in wood turning Nothing can replace the knowledge gained by talking with experienced woodturners or consulting books articles etc Above all simple trial and error will aid in developing proficiency in the craft Inspection Before operating the lathe check that everything is in proper working order 1 Level your machine use the adjustable levelers to help reduce vibration 2 Check bearings adjust only if e
50. ping curve through the piece Should there be a few small ridges left a light cut with a large domed scraper can even out the surface 7 Develop wall thickness at the rim and maintain it as you work deeper into the bowl Once the piece is thin toward the bottom you cannot make it thinner at the rim When the interior is finished move the tool support to exterior to re define bottom of bowl General rule of thumb the base should be approximately 1 3 the overall diameter of the bowl 8 Work the tight area around faceplate or chuck with 1 4 bowl gouge 9 Begin the separation with a parting tool but do not cut all the way through yet Sanding and Finishing 1 Remove the tool support and adjust lathe speed to approximately 500 RPM High speed can build friction while sanding and cause heat check in some woods 2 Begin with fine sandpaper 120 grit and progress through each grit using only light 27 pressure Coarser sandpaper tends to leave deep scratches that are hard to eliminate Use power sanding techniques to avoid concentric sanding marks around your finished piece Avoid rounding over the rim and foot with sandpaper try to keep details crisp Finish sanding with 220 grit 3 Remove sanding dust with tack rags or compressed air and with lathe turned off apply first coat of finish Let stand for several minutes wipe off excess Allow to dry before sanding again with 320 or 400 grit sandpaper 4 Turn
51. plate 1 3058001 1 42 6294773 Warning E 1 A3 ds 3520B 148 Shelf 1 5 0720091 Lock Washer iieri nen a GENS 12 45 5 0209061 Socket Head 3 8 1 1 4 12 5 057003 1 3 8 16 4 AT 6442000 Adjustable Leveler 4 49 3520 149 E 1 BO 3520B 150 Comparator Rear Bracket sss 1 3520B 151 Comparator Rear 1 6520009 Nylon Lock Hex Nut DIST aioe ass 1 TS 0680042 Flat 2 DO nine 10 35 Optional Accessories Bed Extensions Index No Part No Description Size EOD TE 6294727B 18 Bed Extension Assembly includes items 1 thru 6 d 3520B 310 5 heal eet eere aute AS ae a 6294763
52. r between the two cuts and cut down each side to form the bead Roll the tool in direction of cut Coves 1 Use a spindle gouge With the flute of the tool at 90 degrees to the workpiece touch the point of the tool to the workpiece and roll in towards the bottom of the cove See Figure 34 Stop at the bottom attempting to go up the opposite side may cause the tool to catch FIRST CUT Figure 34 2 Move the tool over the desired width of the cove 3 With the flute facing the opposite direction repeat step 1 for other side of cove Stop at bottom of cut V Cuts 1 Use the long point of the skew NOTE Do not press the long point of the skew directly into the workpiece to create the V this will result in a burned or burnished V with fibers being rolled up at both sides 24 2 Lightly mark the center of the V with the tip of the skew 3 Move the point of the skew to the right half of the desired width of your 4 With the bevel parallel to the right side of the cut raise the handle and push the tool in to the desired depth as shown in Figure 35 BEVEL OF SKEW PARALLEL TO CUT Figure 35 5 Repeat from the left side The two cuts should meet at the bottom and leave a clean V cut 6 Additional cuts may be taken to add to either the depth or width of the cut Parting Off 1 Use parting tool 2 Adjust lathe speed to lower RPM for parting through a workpiece 3 Place tool o
53. s of your power supply match the specifications on the motor plate of the Lathe Single Phase Operation three wire pigtail for use on 230 volt single phase power is attached to the inverter and may be hard wired to the power source or connected to a UL CSA listed receptacle plug Connect the 230 volt supply to the black and white leads and ground the green lead you are hard wiring the Lathe to a panel make sure a disconnect is available for the operator During hard wiring of the Lathe make sure the fuses have been removed or the breakers have been tripped in the circuit to which the Lathe will be connected Place a warning placard on the fuse holder or circuit breaker to prevent it being turned on while the machine is being wired Three Phase Operation If three phase power is used it will be necessary to replace the pigtail wire attached to the inverter with a 12 4 wire and connect the three hot leads to the inverter at R S T as shown in the wiring diagram on page 40 Always connect the ground lead Extension cords If an extension cord is necessary make sure the cord rating is suitable for the amperage listed on the machine s motor plate An undersized cord will cause a drop in line voltage resulting in loss of power and overheating Use the chart in Figure 13 as a general guide in choosing the correct size cord If in doubt use the next heavier gauge The smaller the gauge number the heavier the cord
54. stock Assembly 9 2 31 Parts List Headstock Assembly Index No Part No Description Size Ar ee 6294736 Faceplate E Aa ak tatty 6295796 Nyloc Insert Socket Set Screw 1 4 20 3 8 6294725 Spur Cente tss MT2 ms 3520B 204 leyes ELE bue sued 3520B 205 as 8 8 75 3520B 206 nn apn ann DAD EDAR npa 8 8 45 BB 6207ZZ 6207ZZ Blot 3520B 208 sth ee etn Dre 3520 209 3520B 210 lies BB 6206V V ANR 6206VV Tp 6864006 Bearing Lock sees 6549006 Bearing NUE des 3271081 Handwheellx etate etae cde ta lose 5 0270011 Socket Set Screw 5 16 18x1 4 16 eR 6143004 Collar Retaining e
55. straps slings 14mm wrench 4mm and 8mm hex wrenches AWARNING The Lathe should be disconnected from power during assembly 1 Remove any screws or straps that hold the Lathe parts to the pallet and remove protective wrapping 2 The Lathe should be located in a dry area on a sturdy floor and with sufficient lighting Leave plenty of space around the machine for operations and routine maintenance work If you have a hoist or forklift 3 Lift the Lathe off the pallet using a forklift or hoist and move it to the desired location Forks may need to be positioned more toward the headstock to balance the weight Proceed to step 6 to install the legs and levelers while the Lathe is still off the floor If you do NOT have a hoist or forklift 4 f a forklift or hoist is not available the use of one or more assistants is mandatory First decrease the weight on the Lathe by removing the headstock tailstock and tool support base Refer to Headstock and Tailstock Movement on page 13 for removal instructions AWARNING The headstock is heavy use caution when removing it from the lathe bed 5 Lift the Lathe bed and set it upside down on Figure 1 the floor make sure padding cloths have been laid down to prevent scratching the bed Or set the Lathe bed upon a table of sufficient height to allow the legs and levelers to be assembled as shown in Figure 1 6 While the Lathe is off the floor install the legs to t
56. th an 8mm hex wrench to secure the tool caddy to the threaded holes in the Lathe The tool caddy has holes for placing the knockout rod spur center live center live center pin comparator centers and faceplate wrench Accessories can also be stored in the tailstock as shown in Figure 4 Guard AWARNING The guard must always be used in operations that will allow its use 1 the guard loosen the set screw on the outer collar shown in Figure 5 with a 4mm hex wrench Slide the outer collar off the guard support rod 2 Insert the guard support rod into the mounting bracket at the rear of the headstock as shown in Figure 5 You will have to lift up on the spring pin as shown to slide the guard support rod into the mounting bracket Release the spring pin and it will snap into position as you slide the support rod farther in Tool Caddy Soc Hd Cap Screw Lock Washer Outer Collar Figure 5 3 Install the outer collar and tighten the set screw 4 The guard can be pivoted to one of two positions Operating mode shown on front cover or tilted back for stock loading shown in Figure 6 5 Pull up on the spring pin and begin tilting the guard then release the spring pin When the guard reaches either of the two positions the spring pin will engage Bed Extension Optional Accessory An optional 18 bed extension assembly stock number 6294727B is available for the Lathe see your Powermati
57. the live center is about 1 inch from the spindle blank then tighten the locking handle Advance the live center using the tailstock handwheel until the live center is secured in the spindle blank Mount the reference spindle between the comparator centers as shown in Figure 24 NOTE The reference spindle should be mounted last after all adjustment of the tailstock and ram has been accomplished with the spindle blank Likewise when turning operation is complete remove the reference spindle first Speed Change 1 2 Disconnect Lathe from power source To change speed ranges pull open the access door on the headstock Loosen the pivot lock handle A Figure 25 and lift up the tension handle B Figure 25 to raise the motor Tighten the pivot lock handle A Figure 25 to hold the motor in the raised position There should be sufficient slack in the belt to reposition it to the other steps on the sheaves The label on the access door shows the required belt position Loosen the pivot lock handle A Figure 25 and lower the motor to tension the belt Be sure that the Poly V grooves of the belt seat properly in the corresponding groove of the sheave Do not overtension a very light pressure on the tension handle B Figure 25 is adequate to prevent belt slippage Tighten the pivot lock handle A Figure 25 Comparator Figure 24 shown with optional 18 bed extension Figure 25 Belt shown
58. tors or our website Boring Machines Tablesaws Drum Sanders on select industrial machines for more information Dovetail Machines Scoring Saws Panel Saws with distributor installation Planers Panel Saws Power Feeders See your POWERMATIC Warranty reverts to 1 Year if above products are Sanders Accessories amp Abrasives Commercial use Industrial Distributor for details used for commercial industrial or educational of Non Industrial Products Industrial Products Non Industrial Products 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 POWERMATIC warranty lasts for the time period specified in the product literature of each product WHAT IS NOT COVERED The Five Year Warranty does not cover products used for commercial industrial or educational purposes Products with a Five Year Warranty 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 negligence 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 loc
59. ugh to remove the end play and the spindle should still rotate very freely Run the lathe for a time and check for heat from the spindle bearings If the bearings are running hot the spanner nut is too tight and should be loosened slightly 5 After the spanner nut B Figure 26 has been properly adjusted carefully bend back into place any tabs on the tabbed lock washer C Figure 26 Sheave Drive Belt Replacement Replacing the spindle sheave can be a difficult procedure it is recommended that the headstock be taken to an authorized service center for this 18 Figure 26 1 Disconnect Lathe from power source 2 Loosen the pivot lock handle A Figure 25 and lift up the tension handle B Figure 25 to raise the motor 3 Tighten the pivot lock handle A Figure 25 to hold the motor in the raised position Slip the belt off the pulleys 4 Loosen the two set screws on the handwheel A Figure 26 with hex wrench and pull the handwheel off the headstock spindle 5 Loosen and remove the bearing lock nut B Figure 26 and tabbed lock washer C Figure 26 6 Slide the spindle a little way out of the headstock just enough to remove sheave or belt NOTE You may have to tap the end of the spindle with a wood block to move it Do NOT use a steel face hammer directly against the spindle 7 f replacing the spindle sheave loosen the two set screws C Figure 25 and slide the sheave off the spind
60. ut incurring obligations Unpacking Open shipping container and check for shipping damage Report any damage immediately to your distributor and shipping agent Do not discard any shipping material until the Lathe is assembled and running properly Compare the contents of your container with the following parts list to make sure all parts are intact Some parts can be found in separate boxes packed around the Lathe Missing parts if any should be reported to your distributor Read the instruction manual thoroughly for assembly maintenance and safety instructions Contents of the Shipping Container 1 Lathe Bed with Headstock Tailstock amp Tool Support Base A 2 Leg Assemblies 1 Guard C KR 0 4 AWARNING Tool Support 14 D Face Plate 3 E Live Center F Spur Center 1 G Index Pin H Live Center Pin J Knockout Rod K Face Plate Wrench L Tool Caddy M Levelers N Socket Hd Cap Screws 3 8 x 1 1 4 O Lock Washers 3 8 P Flat Washers 3 8 R Comparator Centers S Comparator Rear Bracket with Lock Handle T Owner s Manual Warranty Card Read and understand the entire contents of this manual before attempting set up or operation Failure to comply may cause serious injury Assembly Tools required for assembly Forklift or hoist with
61. y while unscrewing the cone Indexer The indexer allows you to cut spaced features in a workpiece while keeping the Lathe headstock spindle locked for example when cutting flutes on a spindle blank with a router while the spindle blank is secured within the Lathe centers There are 12 holes in the spindle collar spaced 30 apart and 4 holes in the headstock casting which accept the index pin see Figures 18 and 19 The combination of holes will allow you to mark your workpiece for evenly spaced features 1 To use the indexer thread the index pin Figure 18 into one of the four holes until the index pin engages the spindle and prevents it from turning This will be your first indexing position 2 Unscrew and remove the index pin and look down the hole carefully counting the number of holes as you rotate the spindle using the handwheel Continue to rotate the spindle until you reach the hole needed for your second flute cutting then re insert the index pin 3 Refer to the more detailed instructions and chart on page 28 to determine in which holes to place the index pin relative to the number of flutes desired in your workpiece NOTE Remove index pin before turning on the Lathe Centers Installing and Removing 1 Disconnect Lathe from power source 2 To install a spur center or live center the spur center should first be mounted to your workpiece see under Operation for more details
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