Brotherメーカーrh-918aの使用説明書/サービス説明書
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RH-981A ELECTRONIC EYELET BUTTON HOLER ENGLISH.
RH-981A i Thank you very muc h for buying a BROT HER sewing m achine. Bef ore using your new machine, pl ease rea d the saf ety instruc tions belo w and the exp lanations g iven in th e instructio n m anual.
RH-981A ii 2. Notes on safet y DA N GER Wait at least 5 minutes af ter tur nin g off the p ower s witch and disconnecti n g the p ower cord fro m the w all outl et before o p enin g the face p late of the control box. T ouchin g areas where hi g h volta g es are p resent c an result in seve re inju ry .
RH-981A iii CA UTION Sewing This sewing mac hine should onl y be used b y operators who have received t he necess ary training i n safe use bef orehand. The s ewin g mac hine should not b e used for an y applicatio ns other than s ewing. Be sure to wear p rotective g o gg les when usin g the m achine.
RH-981A iv Finger guard 3. W a rnin g lab e ls The f ollowing warnin g labels appear o n the sewin g mac hine. Please f ollow the i ns tr uc tions on the labe ls at a ll t im es when us ing t he m ach ine. If the lab els h av e bee n r em oved or are diffic ult to read, please c ontact your nearest Br other de aler .
RH-981A CONTE NTS 1. NAMES OF EACH P ART ................................ 1 2. SPECIFICA TIONS .............................................. 2 2-1. Specif ic ations ...................................................... 2 2-2. Sewing sh ape .........
RH-981A 9-5. Adj usting the c learance be tween the looper and needle ............................................ 58 9-6. Adjusting t he needle g uard .............................. 59 9-7. Adjusting the spreade r mounting positions ........ 59 9-8. Adjusting t he spreader tim ing .
1. NA MES O F EA CH PA RT RH-981A 1 1. NAMES OF EACH PART (1) Front c over (2) Hand switc h (3) Cloth pres ser switch (4) Start s witch (5) EMERGENC Y STO P switch (6) Upper s haft pulle y (7) Feed br.
2. SPECIFIC A TION S RH-981A 2 2. SPECIFICA TIONS 2-1. Specifications Specific ation RH-981A-00 RH-981A-01 RH-981A-02, RH-9 81A-52 Applicatio n Men’s cloth es and ladies ’ clothes Jeans and work c.
2. SPECIFIC A TION S RH-981A 3 2-2. Se w ing shape Eyelet buttonhole S t r a i g h t b u t t o n h o l e W ithout bar tacking W ith taper W ith straight bar tacking ( *) W ithout bar tacking W ith taper W ith straight bar tacking ( *) * The DIP s witch settings m ust be changed.
2. SPECIFIC A TION S RH-981A 4 2-5. Replacement parts list fo r specific ation changes The sewing m achine can be c hanged t o an y one of L1 - L7 f or -02 and -52 spec ific ations by replac ing the s pecif ied parts with the appropriate parts given belo w.
3. INST ALLATION RH-981A 5 3. INST ALLA TION CA UTION Machine instal lation should onl y be carried o ut by a qualif ied technic ian. Conta ct you r Brothe r dealer or a quali fied ele ctrician for an y electrical w ork tha t may ne ed to be done. The sewing m achine weighs m ore than 87 kg .
3. INST ALLATION RH-981A 6 3-2. Installing the motor 1. Inser t the four nuts (1) into the work table. 2. T urn the work table upside down to m ake it easier to install the motor (2).
3. INST ALLATION RH-981A 7 3-3. Installing the motor pulle y 1. Place the m otor pulley (1) on to the s haft of the motor (2) so that the k ey grooves are alig ned, and then tighten the set screws ( 3.
3. INST ALLATION RH-981A 8 3-5. Installing the machine head 1. Insert the accessor y bed bas e cushions A (1) into the bed base, and then plac e the mac hine head on top of the work table.
3. INST ALLATION RH-981A 9 Raisin g the ma ch ine head 1. W hile holding th e handles of the mac hine head (1) with bot h hands, gent ly raise the m achine head.
3. INST ALLATION RH-981A 10 3-6. Installing the o il container 1. Install the oi l drainin g c ap support (2) to the bas e of the bed base ( 1) with the two sc rews (3).
3. INST ALLATION RH-981A 11 3-8. Tightening the V-belt 1. O pen the rear cover . 2. Pas s the V-belt ( 1) through the b ase of the bed b ase and thr ough the hole in the work table.
3. INST ALLATION RH-981A 12 3-9. Installi ng the spool stand 1. T o assemble the spool stand (1), f ollow the instruct ions in the m anual that c ame with the spoo l stand (1). 2. Secure the spool s tand (1) to the rear righ t corner of the work table with the was her and nut (2).
3. INST ALLATION RH-981A 13 3-12. Connecting the w iring 1. Pass the cable and air tube which ar e com ing out of the belt cover (1) and the m achine head (2) through the cable hol e (3) in the work table.
3. INST ALLATION RH-981A 14 3-12-1. Connections inside th e control box 1. Open the r ear cover ( 1) of the contr ol box. 2. Pass the cables throu gh the holes (2) and (3) in the side of the c ontrol box. 3. Loos en the scre w (5), and then conn ect the three ground cables (4) that ar e com ing f r om the m ac hine head.
3. INST ALLATION RH-981A 15 3-12-2. Connecting the motor cabl es 1. Rem ove the screws (1) , and then open the t erm inal block cover (2) o f the motor. 2. Loosen the scre w (3) and connect the ground cabl e (4) for the motor. 3. Loosen the scre w (5) and connect the ground cabl e (6) from the control box.
3. INST ALLATION RH-981A 16 3-12-4. Secu ring the c ables Note: Leave enough looseness in the cabl es so that they will not b e pu lle d when the m achine head is tilted bac k. 1. Pas s the cable through the c able holder (1), and then secure the c able holder (1) to the und erside of the work table with the scr ew.
3. INST ALLATION RH-981A 17 3-13. Installing the air tubes Connect the air tube from the compr essor to the air unit underneath t he work table. 1. Turn the nut (1) at the en d of the air tu be, and then connect the tub e to the valve (2) . 2. Open the air coc k (3) on the com pressor .
3. INST ALLATION RH-981A 18 3-14. Connecting the pow er co rd CA UTION Contact your Br other dealer or a qualif ied electric ian for an y electrical wor k that m ay need to be done.
3. INST ALLATION RH-981A 19 3-15. Installing the programmer (sold separate ly) 1. Install the pr ogramm er support (2) to the work table with the t wo screws ( 1). 2. Insert the progr amm er connector (4) sec urely into the left s ide of the operatio n panel (3).
3. INST ALLATION RH-981A 20 3-17. Installing th e indexer (option) 3-17-1. Instal ling the ind exer m a in unit 1. Af ter disc onnecting air tubes [20] and [21], insert the two plugs (3) into joints (1) and (2). In add ition, remove par ts (4), (5) and (6) indic ated in the illustrati on.
3. INST ALLATION RH-981A 21 3-17-2. Installing the upper thre ad pres ser 1. Loos en the screw (1), and then r emove the thr ead guide (2). 2. Install the upp er thread press er suppor t (3) with the screw (1 ).
3. INST ALLATION RH-981A 22 3-17-5. Connecting t he connec tors 1. Ins ert the 3-pin c onnectors [8], [9] a nd [10] of the valve har ness into th e solen oid valves of the valve unit (1) so that t he label num bers m atch. 2. Insert the 15-pin connector (2) into the conn ector of the indexer cord (3).
3. INST ALLATION RH-981A 23 3-17-6. Connecting t he air t ube s Connect air tubes [50], [51], [5 2] an d [53] to the plac es with the cor responding num bers on the val ve unit. Label No. Solenoid valv e type [50], [51] For cloth feed drive c ylinder [52] For chuck ing c ylinder [53] For holding cylinder 3-17-7.
3. INST ALLATION RH-981A 24 Insert the index er specif ication harness (1) into the control box c onnector (2). * If another specif ication harn ess has been i nserted into this c onnector, fir st disc onnect this harness and then inser t the indexer s pecific ation harness (1) .
4. LUBRICATION RH-981A 25 4. LUBRICA TION CA UTION Turn of f the power switch bef ore s tarting lubric ating, other wise the m achine m ay operate if the start switch is press ed by mist ake, which could re sult in injur y .
4. LUBRICATION RH-981A 26 Oiling the looper, spreade r and looper base <Removing the work clamp p lates> 1. Turn the upper shaf t pulley (1) toward you until the mar k on the pulley (A) is aligned with the n otch in the pulle y cover (2 ). 2. Move the feed brac ket (3) toward you.
5. CORRECT USE RH-981A 27 5. CORRECT USE 5-1. Data initialization W hen using the sewing m achine f or the first tim e, initialize t he data b y following th e procedure b elow.
5. CORRECT USE RH-981A 28 5-3. Installing the needle CAUTION Turn of f the power s witch before i nstalling t he needle , otherwise the m achine m ay operate if the s tart switch is pres sed b y mistake, which c ould result i n injury . Use only Schm etz DO x 558 Nm 80 - Nm 120 needles.
5. CORRECT USE RH-981A 29 5-5. Threading the lo wer thread Remove the work clamp plates (refer to page 26), and the n thread the lo wer thread as s hown in the il lustration below.
5. CORRECT USE RH-981A 30 5-6. Threading the gimp Remove the wor k clam p plates (refer to page 26), and then thr ead the gim p as shown in the illustr ation below. Once threading is com plete, replace the work clamp plates. <-00,-01 > 0884Q 0885Q 3041Q <-02,-52 > Pass the gimp t hroug h the hole of the thread tensi on stud (1).
5. CORRECT USE RH-981A 31 5-7. Sett ing the ma terial <-00, -01, -02 specification s> 1. Ins ert the m aterial so that it touc hes the right an d left cloth guid es (1).
5. CORRECT USE RH-981A 32 Cloth setting positio n The s ewing start position c an be set to either the lef t setting posit ion or the hor izontal sett ing positio n. (Refer to page 73.) When set to the left se tting position This is the normal s etting position f or the clot h.
5. CORRECT USE RH-981A 33 5-8 . Setting the ins tallation position for cloth feed pla te (L) (-52 specificat ions) The installation p osition f or cloth f eed plate (L) can b e set to on e of f our positions depending on the spac ing between buttonholes and the num ber of buttonholes to be sewn.
5. CORRECT USE RH-981A 34 5-9. Replacing the PRO Ms Refer to the f ollowing when replac ing the PROMs ( for exam ple, when upgrading the version num ber).
6. OPER ATION RH-981A 35 6. OPERA TION 6-1. Name and funct ion of each opera tion panel item (1) Powe r indicato r Illuminates when the power is turned on. (2) Warning i ndica tor Illuminates when an error occurs. (3) RESET key Press to r eset errors , and to clear the produc tion counter.
6. OPER ATION RH-981A 36 (13) Progr am mode indicator Illuminates during progr am m ode. (14) Cycle program mode indic ator Illuminates during c y cle progr am m ode. (15) SEL ECT k ey Press to c hange the mode. • W hen an independe nt program (1 - 9) is s elected, the m ode changes in the f ollowing or der.
6. OPER ATION RH-981A 37 6-3. Program setting method 1. Pres s the SELECT k ey (1) to change the m ode to automatic , manual or test feed m ode. 2. Press the and ke y s to selec t the pr ogram number (1 - 9) for the independent pr ogram to be changed.
6. OPER ATION RH-981A 38 No. Setting item s Setting range Unit Default 04 Offset 0.5 - 2.0 mm 0.1 1.5 05 Stitch pitch 0.5 - 2.0 mm 0.1 1.0 06 Number of eyelet stitches 4 - 20 stitches 1 9 07 Cutting space -0.3 - 0.5 mm 0.1 0 08 Knife X pos ition com pensation -0.
6. OPER ATION RH-981A 39 No. Setting item s Setting range Unit Default 13 Y alignm ent -1 - 6 1 0 14 θ 1 alignm ent -3 - 3 1 0 15 θ 2 alignm ent -3 - 3 1 0 16 Eyelet m achine speed (*2) -600 - 0 rpm.
6. OPER ATION RH-981A 40 6-3-2. P arameter table ( St raight b ar tac king ) The allo w able setti ng range for s o me par a meters ma y var y from the range spec ified, depending on the settings of other param eters.
6. OPER ATION RH-981A 41 No. Setting item s Setting range Unit Default 08 Knife X pos ition com pensation -0.5 - 0.5 m m 0.1 0 09 Knife Y position com pensation -0.
6. OPER ATION RH-981A 42 No. Setting item s Setting range Unit Default 17 Eyelet radius OFF, 1 - 5 1 OFF 18 W idth correction value -1.0 - 0 m m 0.1 0 19 Tack ing overlap am ount 0 - 2.0 mm 0.1 1.0 20 Slow start s titches 0 - 3 stitches 1 0 21 Slow start s peed (*3) 400 - 1,500 rpm 100 1,000 22 Stitch width c orrection -1.
6. OPER ATION RH-981A 43 6-4. Cy cle prog ram Cycle program s can c onsist of up to a m aximum of four independent progr ams (A to D). A single c y cle pro gram can contain up to a m aximum of eight steps.
6. OPER ATION RH-981A 44 6-5. Production counter 1. Press the SELECT key (1) to cha nge the m ode to autom atic mode. 2. Press the k ey and key s imultaneous ly. * "PC " will flash in the pr ogram number displa y ( 2), and the pr oduction counter value will appe ar in the deta il displ ay (3).
7. SEWING RH-981A 45 7. SEWING CAUTION Turn off the power s witch at th e follo wing tim es, otherwise the m achine m ay operate if the start switch is pressed b y mistak e, which could result i n injur y. • When threading th e needle • When replac ing the needle • When not using the m achine and when leavi ng the m achine unattended.
7. SEWING RH-981A 46 7-2. Using the E MERGENCY STOP switch 1. Press the EMERG ENCY ST OP switch (1). * All s ewing o perati ons will s top and the buzzer will so und. At th is tim e, the warn ing indic ator (2) will flash an d "E-60" will flash in t he detai l displa y (3).
7. SEWING RH-981A 47 7-3. A djusting the thre ad tension Turn off the po wer. Never adjust the t hread tens ion while se wing. <Reference v alues> W oolen material s + wo ol gi m p s Denim (3 lay ers) Upper thread tens ion 0.9 N 1.0 N Lower thread t ension 0.
7. SEWING RH-981A 48 7-4. Needle and knife position The feed br acket is electronicall y controlled b y means of pulse m otors. It is not nec essar y to change the posit ion of the k nife when switchin g between cutt ing befor e sewing and c utting after sewing.
7. SEWING RH-981A 49 7-5. Setting the feed b r acket to the f ront position Setting the m aterial will be e asier if the feed brack et is m oved forward f rom the standar d cloth setting pos ition. Cycle tim e will be reduced with this setting, partic ularly if cutting after sewing is selected.
7. SEWING RH-981A 50 7-7. Using test feed mode In this m ode, the feed brac ket can be m oved while the nee dle stopped. It is usef ul for check ing the relative pos itions of the needle and the work clamp. 1. Press the SEL ECT k ey (1) to change the m ode to test f eed m ode.
7. SEWING RH-981A 51 7-8. Using manual mode In this m ode, the feed brac ket can be m oved one stitch a t a tim e by turning the up per shaft pulle y by hand. This is useful when car rying out tim ing adjustm ent. 1. Press the SEL ECT k ey (1) to change t he mode to m anual m ode.
7. SEWING RH-981A 52 7-9. Changing the mode du ring an operation • If y ou press the SELECT k ey (1) during test feeding, you can cha nge the mode to manual s ewing in manual s ewing mode.
8. CLEANING A ND M A INTENANCE RH-981A 53 8. CLEA NING AND MA INTENANCE CAUTION Turn off the power switch befor e starting any cleaning wor k, other wise the m achine m ay operate if the star t switch is pres sed b y mistake, which c ould result i n injury .
8. CLEANING A ND M A INTENANCE RH-981A 54 8-2. Draining the oil W hen the oil container (1) is f ull of oil, rem ove the oil container (1) and let the oi l drain out. Note: Clean up any oil that m a y have been sp ilt o nto the floor. 8-3. Checking the a ir filter 1.
9. ST A ND ARD ADJUSTM ENTS RH-981A 55 9. ST ANDARD ADJU STMENTS CAUTION Maintenance and i nspection of the sewing machine should onl y be carried out b y a qualified tec hnician. Ask your Brother dealer or a qualified elec trician to carr y out an y maintenanc e and inspec tion of the electric al system .
9. ST A ND ARD ADJUSTM ENTS RH-981A 56 9-2. A djusting the needle and looper ti mi ng The dis tance by which the needle bar rises fr om its lowest position t o the position where t he tip of the eye l.
9. ST A ND ARD ADJUSTM ENTS RH-981A 57 9-3. A djusting the loop stroke The loop strok e is the distance the needl e bar ris es f rom its lowest position to the pos ition where t he tips of the eye looper and right looper are align ed with the center of the nee dle.
9. ST A ND ARD ADJUSTM ENTS RH-981A 58 9-4. A djusting the height of the needle bar The s tandard height f or the needle bar is 2. 5 mm . (The needle bar height ma y need cha nging depending o n the mater ial and thread bein g used.
9. ST A ND ARD ADJUSTM ENTS RH-981A 59 9-6. A djusting the needle guard Be sure to car ry out this adj ustm ent after changing the s ize of the ne edle. The needle m ust rem ain stationar y with respect to the needle guard unt il the ti p of the looper r eaches the need le.
9. ST A ND ARD ADJUSTM ENTS RH-981A 60 9-8. A djusting the spre ader timing W h en the needle is at the inside s ewing position, the l eft spreader should touc h the left spreader s topper and stop immediatel y before the ne edle bar reaches its lo west position.
9. ST A ND ARD ADJUSTM ENTS RH-981A 61 9-10. Changing the knife cutting length (Replacing the hamme r) 1. Gr ind or replace th e hamm er after changing the k nife c utting length.
9. ST A ND ARD ADJUSTM ENTS RH-981A 62 9-11. A djusting the contact bet w een the knif e and the ham mer 1. Rem ove the ham mer. (Ref er to the previous pa ge.
9. ST A ND ARD ADJUSTM ENTS RH-981A 63 9-12. Rep lacing the kn ife 1. After checking that there is no c learance between the stopper pla te (1) and the knif e (2), loosen the bolt (3) and then rem ove the knif e (2). 2. Ins ert the new k nife (2) into the s topper plat e (1), and then t ighten it with th e bolt (3).
9. ST A ND ARD ADJUSTM ENTS RH-981A 64 9-14. A djusting the position of the work clamp plate Adjust so that the t hroat plate (1) and the need le plate R (2) d o not mak e contact during se wing. The s tandard clearance between the throat plate (1) a nd the needle plate R (2) is 1.
9. ST A ND ARD ADJUSTM ENTS RH-981A 65 9-15. A djusting the cloth opening amount 1. Loosen the screw (1), and th en insert a screwdriver int o the notch in the side of the feed brack et and turn the adjusting sc rew (2) to adjust the opening amount. 2.
9. ST A ND ARD ADJUSTM ENTS RH-981A 66 9-16. Adjusting the trimming of the upper thread The upper thr ead should be trimm ed at the correct tim e after s ewing is completed. <-00, -01 > Adjust s o that the upper m ovable k nife (1) c uts only one of the threa ds in front of the right looper (2) .
9. ST A ND ARD ADJUSTM ENTS RH-981A 67 <-02,-52 > The lower thread and gim p should be trimm ed at the correct tim e after the work clam ps ris e at the feed home position. Thread tr imming operation c an be chec ked in steps while m anual mode is ac tive.
9. ST A ND ARD ADJUSTM ENTS RH-981A 68 9-20. A uxiliary clamp arm (-02, -52 specifi cation s) Trimm ing of the lower thread and gim p is carried out when the work clam ps rise. The aux iliary clam p arm (1) endures that the m aterial does not m ove during thread trim ming, in order to m aintain a s table t hread length after trimming.
9. ST A ND ARD ADJUSTM ENTS RH-981A 69 9-22. Adjusting the clot h feed bar home positi on (-52 specifications) The c loth feed bar hom e position is adj usted by m eans of the bolt which is ins talled to f eed base L. After c arrying out this adj ustment, adj ust the insta llation positio n for lim it switch (R ).
9. ST A ND ARD ADJUSTM ENTS RH-981A 70 9-23. A djusting the indexer hol e spacing (-52 specif ications ) Before c arrying out this adjustm ent, check that the hom e position adj ustm ent for the cloth feed bar has been carried out correc tly. (Refer to page 69.
9. ST A ND ARD ADJUSTM ENTS RH-981A 71 9-24. A djusting the position of li mit switch L (-52 specificat ions) Limit s witch L mus t turn on when the f eed movable bl ock is touching the stopper b lock . 1. Loos en the two bo lts (1). 2. Plac e the feed m ovable b lock ( 2) and the stop block (3) firm ly against each ot her.
10. CHANGING FUNCT IONS USING THE M EMORY SWITCHES RH-981A 72 10. CHANGING FUNCTIONS USING THE MEMOR Y SWITCHES The m emory switches ar e valid f or all program s. 1. Pr ess the SEL ECT k ey (1) to cha nge the m ode to program or cycle program mode. 2.
10. CHANGING FUNCT IONS USING THE M EMORY SWITCHES RH-981A 73 10-1. Memory sw itch table The m emory switch settin gs are applie d imm ediately to all pr ogram s once the settings have been c hanged. However, m emor y switches m ark ed with * are only applied af ter the po wer is turned on.
11. CHANGING FUNCT IONS USING THE DI P SWICHE S RH-981A 74 1 1. CHANGING FUNCTIONS USING THE DIP SWITCHES Always turn of f the power s upply before changi ng any of the DI P switch s ettings. 11-1. Panel D IP s w itches The ON /OFF positions of the DIP switc hes inside the op eration panel are check ed only once when th e power is turned on.
11. CHANGING FUNCT IONS USING THE DI P SWICHE S RH-981A 75 11-2. Circuit boa rd DIP s w itches DA NG ER W ait at least 5 minutes after turning of f the power switch and d isconnecting t he power cord fr om the wall outlet bef ore opening the f ace plate of the c ontrol box.
11. CHANGING FUNCT IONS USING THE DI P SWICHE S RH-981A 76 Circuit board DIP switch D No. ON/OFF Setti ng items Default ON - 1 OFF - OFF ON - 2 OFF - OFF ON - 3 OFF - OFF ON - 4 OFF - OFF ON - 5 OFF -.
12. LIST OF ERROR CODES RH-981A 77 12. LIST OF ERROR CO DES DA NG ER W ait at least 5 minutes after turning of f the power switch and d isconnecting t he power cord fr om the wall outlet bef ore opening the f ace plate of the c ontrol box. T ouching areas where hig h voltages ar e present can resul t in se vere i njury .
12. LIST OF ERROR CODES RH-981A 78 Errors bef ore oper ation and aft e r the EMERGENCY STOP swi tch is pr essed Code Explanati on Resetti ng me tho d E-30 EM ERGENCY STO P switch w as pressed. Releas e the EMERG ENCY ST OP switch an d then pr ess the RESET key.
12. LIST OF ERROR CODES RH-981A 79 Errors during opera tion Code Explanati on Resetti ng me tho d E-71 Needle down sensor is no t activa ted w ithin a specifie d tim e. Turn off the pow er and che ck that conne ctor P2 on the contr ol circuit b oard i s pro perly connect ed.
13. TROUBLESHOOT ING RH-981A 80 13. TROUBLESHOOTING If there is a problem with operation, firs t check that the threads are cor rectly threaded and that th e needle is corr ectly installed.
13. TROUBLESHOOT ING RH-981A 81 Problem Cause Remedy Page Knife is blu nt. Replace with a new k nife. 63 Knife does not m ove to the full strok e because air pres sure is too weak. Adjus t the air press ure. 63 Upper thread trim mer knife is not pick ing up the upper thr ead.
INSTRUCTION MAN UAL 1 18-981 SA0279-101 2003.01.H (1) Printed in Japan.
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