Instruction/ maintenance manual of the product rh-918a Brother
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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.
An important point after buying a device Brother rh-918a (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Brother rh-918a yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Brother rh-918a - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Brother rh-918a you will learn all the available features of the product, as well as information on its operation. The information that you get Brother rh-918a will certainly help you make a decision on the purchase.
If you already are a holder of Brother rh-918a, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Brother rh-918a.
However, one of the most important roles played by the user manual is to help in solving problems with Brother rh-918a. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Brother rh-918a along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
