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Opera ting Instructions and Parts M anual Combination Belt/Dis c Sand er M odel 3 1A WM H TOO L GR OUP , Inc . 2420 Vantage Dr ive El g in, Illi nois 60124 Part No . M-0460267 Ph.: 800-274-6848 Revi s i on G1 6/08 www.powerm ati c .c o m Copyri ght © 2008 WM H Tool Group, Inc. This Manual is Bookmarked[...]

2 Warranty and Servic e WMH Tool Group, Inc., warrants every product it sel ls . If one of our tool s needs service or r epair, one of our Authorized Servi ce Centers l ocated throughout the United St a tes can give you qui ck service. In m ost cases, any of these WMH Tool Group Authorized Service Cent ers can authorize warranty repair, as sist you[...]

3 T able of Conte nts W arranty and Servic e .............................................................................................................................. 2 Tab le o f Con ten ts .............................................................................................................. ...................... 3 W a rning ........[...]

4 W arning As w it h all machines, t here is a certain am ount of hazard i n v o lv ed w it h the use o f this sander. Use the m achine with t he respect and caut ion demanded wher e safet y precauti ons are conc erned. W hen norm a l safet y precauti ons are o v erlook ed or ignor ed, personal inj ury to the operat or can res ul t. Read, underst a[...]

5 Mach ine capaci ty. Do no t try to forc e the sander to r e m o v e m aterial f as ter t han the power av ailable f rom the driv e mot or. The use of light press ure on eit her disc or belt sanding an d mov ing t he part back and f orth will m a ximi ze belt or d isc lif e, help t o mi n imi ze the chances of an acci dent and keep t he f orce wit[...]

6 Introduct ion Thi s m anual i s provi ded by W M H Tool Group, Inc. cov er ing t he sa f e oper ation and m a int enance procedur es f or a Powerm a ti c Model 31A Co m b inati on Bel t/Disc S ander. This m anual cont a ins i ns truc tions on instal l ation, saf ety precaut ions, gener al operat ing proc edures, m ai n tenanc e instruct ions and [...]

7 Dimens ions Figur e 1[...]

8 Unpacki ng Open shi pping cont ainer and c heck for s hi pping dam age. Report any dam age immedi a t ely to your di stri butor and s hi pping agent . Do not discar d any shipping m ateri a l until the Sander i s assem bled and runni ng properly. Com pare the cont ents of your cont ainer wit h the f o ll ow ing part s li s t to mak e s ure al l p[...]

9 A s sembl y Tools re quire d: wrenches – 10, 13 and 17m m hex ( All en) wrench – 8 mm Cross-poi nt screwdriv er I nstallin g Sander on Stan d Refer t o Figur e 3: 1. If the m achine i s to be secured t o the f l oor, use hi gh quali ty lag scre ws through t he f our holes i ns i de the bottom of t he stand. I f us ing a m ob il e bas e, be su[...]

10 I nstallin g and T r ackin g A brasiv e Belt To i nstall t he abrasive bel t, proc eed as f ollows Refer t o Figur es 5 and 6: 1. Loosen t he knob (A) and sw ing t he belt end guard (B) out of position. 2. Rem ove the side cover by unscrew ing t he tw o knobs hol di ng it , and sli d ing t he tabs of the side c o v er out o f the slot s o f the [...]

11 2. Insert the two M10x 25 socket head cap screws (AA), w i th tw o M10 flat w as hers (EE), t hrough the f ence base and i nto the threaded hol es on the piv ot plate. 3. Ti ghten the screws wit h an 8mm he x wrench. 4. Check t hat the gap between f ence and sanding b elt is about 1/ 16”. If it i s greater than 1/ 16”, l oosen (do not rem ov[...]

12 Dust Ou tlet and Cord Pla te Refer t o Figur e 10: 1. I ns tal l the dust out let using t he f our M6 x 12 pan head flanged screw s (F F) . 2. Single Phase m odel: Feed the el ectr ical plug t hrough the hol e i n the s tand, and sli de the cor d plat e through al so. Secure t he cord plat e to t he s tand usi ng the two M5x 12 pan head screws ([...]

13 Con v erti ng fr om 230 Volt to 46 0 Vo l t (Thre e Phase Onl y) Consult t he wir ing di agram insi de the start er box cov er. A diagram i s also incl uded on page 29 of thi s manual. The Joi nter m us t c o m pl y with all loc al and nati ona l c odes a f ter be i ng wired. 1. Rem ove t he starter bo x co v er and adjust t he dial on the r ela[...]

14 A d justmen ts Bef ore put ting power to the sander, inspect the m achine thoroughl y. Check to ensure that all scre ws are ti ght, all m echanical f unctions work freel y, bel t runs f reely and t racks prop erly , and the di sc runs fr eely, does not com e int o contac t with t he guard or table, and t he abrasiv e rem ains firml y adhered t o[...]

15 A z ero-degree stop screw (D) i s locat ed behind the di sc. The bloc k should be set for qu ic k plac e m ent of t he table to t he zero positi on (90 degree tabl e). The block m us t be sw ung out of positi on f or the tabl e to be t ilt ed downward. I f m a jor adjustment o f the zer o-degree stop i s necessary, loosen t he s ocket head cap s[...]

16 Operatio n The bel t and disc sander can be equi pped w it h a v ar i ety of abrasiv es and grit si zes to h andl e a wide v ariety of m a ter ials, fr o m s oft w oods to hardened s teel . I t can be used t o rapi dly r emov e m a teri al and produce a m i rror fi nish. Using v ar i ous types of fixtur es , t hey can be us ed to sand tem plat e[...]

17 The c hart on page 19 l ists the v ari ous grit s and m a teri als used and l i s ts the gri t sym bols. It i s general ly bet ter t o start wit h a sli ghtly coarser abrasiv e than would s eem pr actical because it w ill g ive fa s te r mate ria l re mo val, gener ate l es s heat, and w ill s and m ore f reely. A s i t dulls, i t will tend t o [...]

18 M a intenanc e Be for e doin g ma inte nanc e on the sand er, disconn ect it fr om t he electri cal su pply by pul ling out t he pl ug or swi tching o ff th e main switch! Fail ure to comp ly may cause seriou s i njury. Make per iodic or regu lar inspect ions to ensure that your sander is proper ly adjusted, that all scre ws are ti ght, t he bel[...]

19 Guid e to Sanding Belts and D iscs[...]

20 T roubleshoot ing Trou ble Proba b le Ca use Re me dy Disconnec ted from pow er source. Check c onnecti on to source. Incor rect v oltage. Make sure power source m at ches v o lt age o f sander, as sho wn on mot or nam e p lat e. Swit ch is not activati ng. Repair or replace switch. Sander wil l not star t . Mot or is f aulty. Repair or replace [...]

21 Par ts List: 31A Sander Body A ssembly Ind ex No. Part No . Descrip tion Siz e Qty 1............... 31 A-1 .......................Ca s t Ba s e.............................................................................................. 1 2............... 31 A-2 .......................Du s t Ch ute (D isc ) .....................................[...]

22 58............. 31 A-5 2 .....................Lo ck Was he r ......................................................M16 ................. ........... 2 59............. 31 A-5 3 .....................Hex H ead Fl ange Bo lt .........................................M6 x 2 0 ...................... 4 60............. 31 A-5 4 .....................Lo ck[...]

23 31A San der Body A ssembly[...]

24 Par ts List: 31A Stand A ssembly (1P H) Ind ex No. Part No . Descrip tion Siz e Qty 1............... 31 A-7 8 .....................Sta nd .................................................................................................... 1 2............... 31 A-7 9 .....................Du s t Outle t ............................................[...]

25 31A Stan d A ssembly (1PH )[...]

26 Par ts List: 31A Stand A ssembly (3P H) Ind ex No. Part No . Descrip tion Siz e Qty 1............... 31 A-7 8 .....................Sta nd .................................................................................................... 1 2............... 31 A-7 9 .....................Du s t Outle t ............................................[...]

27 31A Stan d A ssembly (3PH )[...]

28 El ectrical Connections (1 Phase)[...]

29 El ectrical Connections (3 Phase)[...]

30 NOTES[...]

31[...]

32 WM H T ool Grou p, I nc. 2420 Van tage D r ive Elgin, Il linois 60 124 Phone : 800-274-6848 ww w .powe rmatic .co m www.wm htoolgr oup.com[...]