Brother RH-9820- User Manual

RH-9820 iv [3] Warning labels The following warning labels appear on the sewing machine. Please follow the instructions on the labels at all times when using the machine. If the labels have been removed or are difficult to read, please contact your nearest Brother dealer. 1 2 3 Do not touch the knif...

RH-9820 CONTENTS 1. MACHINE SPECIFICATIONS....... 1 2. FUNCTION SETTINGS ................. 2 2-1. List of special functions when power is turned on............... 2 2-2. List of advanced functions.....................................................3 2-3. Memory switch setting method (Advanced)........

RH-9820 1. MACHINE SPECIFICATIONS 1 1. MACHINE SPECIFICATIONS Lower thread trimmer Thread trimmer Long type Short type -00 O - - -01 O O - -02* 1 O - O *1: -02 specifications are divided into L1422 to L3422 specifications depending on the sewing lengths, so please specify the sewing length when orde...

2. FUNCTION SETTINGS 2 RH-9820 2. FUNCTION SETTINGS 2-1. List of special functions when power is turned on This section contains a list of functions and the key operations which are used to call the setting mode for the functions. Push the power switch at the ON side to turn on the power. 1 Memory s...

3. READING/WRITING DATA 24 RH-9820 3-4. Reading parameter data from the CF card 1. Select R1 in data read/write mode. 2. Press the ENTER key. The parameter data for all programs on the CF card will be read. Once reading is complete, a “COMPLETED” message and the power off symbol will be displayed. 3...

3. READING/WRITING DATA 25 RH-9820 3-8. Writing error log data to the CF card 1. Select W6 in data read/write mode. 2. Press the ENTER key. The error log in the sewing machine will be written to the CF card. The memory switch settings will also be written at this time. However, the file destination ...

4. MECHANICAL DESCRIPTIONS RH-9820 26 4. MECHANICAL DESCRIPTIONS Each mechanism operates in the order of the numbers shown in the illustration. * <number> indicate the flow of operations that occur separately from each other. 4-1. Upper shaft and Needle bar mechanisms 1. Motor assembly 2. Lowe...

4. MECHANICAL DESCRIPTIONS RH-9820 35 4-13. Lower thread release and lower thread take-up mechanisms <-01> 1. Lower thread tension release solenoid 2. Lower solenoid shaft 3. Lower thread take-up guide lever (thread take-up) 4. Tension release pin (tension release) <-00, -02 ： Lower thread ...

5. DISASSEMBLY RH-9820 39 Disassemble the parts in the order shown in the illustration. 5-1. Covers and presser foot mechanism * Start with the machine head in its upright position. 1. Screw (Loosen) 2. Needle 3. Screws [9 pcs] 4. Top cover 5. Screws with washers [4 pcs] 6. Belt cover 7. Screws [2 p...

5. DISASSEMBLY RH-9820 42 5-3-2. X feed unit * Carry out the following with the machine head tilted back. 17. Socket bolts [3 pcs] 18. X feed assembly 5-3-3. Y feed unit * Disassemble the “5-2. Upper shaft motor unit mechanism” before disassembling the “5-3-3. Y feed unit”. * Start with the machine ...

5. DISASSEMBLY RH-9820 52 5-12. Upper shaft mechanism * Carry out the following with the machine head in the upright position. 1. Screw 2. Set screw (Loosen) 3. Set screws [2 pcs] (Loosen) 4. Set screws [2 pcs] (Loosen) 5. Set screws [2 pcs] (Loosen) 6. Set screws [2 pcs] (Loosen) 7. Upper shaft uni...

6. ASSEMBLY RH-9820 55 ・ Assemble each part in the order shown in the illustration. ・ Parts indicated by are part of the same assembly. 6-1. Cutter mechanism * Carry out assembly steps <1> to <8> in “6-25. Lubrication and greasing and routing the oil tubes” before carrying out the assemb...

6. ASSEMBLY RH-9820 58 Adjusting the pressure of the needle bar gear block Secure the needle bar gear nut (6), and then while pushing the needle bar gear block (5) with a force of 78.4 N, tighten the screw (7). NOTE: If pressure is not applied, it will not be possible to adjust the turning center fo...

6. ASSEMBLY RH-9820 62 1. Bearing 2. Bearing collar 3. Bearing 4. Upper shaft crank 5. Screw 6. Set screw 7. Upper shaft 8. Spacer 9. Bearing 10. Balance collar 11. Pinion 12. Set screws [2 pcs] 13. Set screws [2 pcs] 14. Bearing 15. Bearing collar 16. Internal retaining ring 17. Set screws [2 pcs] ...

6. ASSEMBLY RH-9820 63 <Adjusting the pressure of the orthogonal shaft> While pushing the pulley base(27) in the direction of the arrow with a force of 98 N, push the orthogonal shaft (23) in the direction of the arrow with a force of 98 N, and then tighten the two set screws (28). * This adju...

6. ASSEMBLY RH-9820 67 D Slide block guide D installation 1) Provisionally tighten the four socket bolts (10) so that the slide block guide D (9) can still move. 2) While pushing the slide block guide D (9) gently from the face plate side toward the arm installation surface, tighten the fifth socket...

6. ASSEMBLY RH-9820 68 F Needle bar crank forward/back adjustment 1) Align the screw stop of the needle bar crank (11) with the side where the two set screws (12) are on the upper shaft crank (h) (where the set screw (12) (j) is), and then provisionally tighten the two set screws (12) (i) and (j) so...

6. ASSEMBLY RH-9820 71 E Belt tension adjustment Repeat steps1 to 3 to adjust the belt tension until it is within the ranges given below. ・ When using a new belt: 80 - 90 N ・ When reusing an old belt: 60 - 70 N 1) Loosen the two screws (b) of the Y pulley support assembly (a). 2) Use the adjustment ...

6. ASSEMBLY RH-9820 72 F Standard installation of motor unit <Y shaft and Y shaft holder installation positions> Align the end (A) of the Y shaft holder (36) and the reference line (B) on the Y shaft (35), and then tighten the socket bolt (37). <Y shaft and Y driving shaft holder installati...

6. ASSEMBLY RH-9820 75 A Tie one end of the wick (1) once, and then push that end into the hole (a) in the support shaft base (43). * Push in so that the knot does not protrude from the hole (a). (Viewed from the front) (Viewed from the right) B 1) Tie one end of the wick (8) once, and then push tha...

6. ASSEMBLY RH-9820 77 G 1) Tie the wick (75) around the wick release plate (78) as shown in the illustration. * Make a double knot in the wick, and then set the wick so that the distance from the knot to the end is as shown in the illustration, and cut off any excess length. 2) Install the felt (76...

6. ASSEMBLY RH-9820 78 J 1) Apply adhesive (Threebond 1373B) to the outer circumferences of the two ball bearings (91). 2) Insert the two ball bearings (91) into the top and bottom of the looper base mounting hole (i) in the bed. * Insert the two ball bearings (91) securely until their surfaces (j) ...

6. ASSEMBLY RH-9820 81 E Belt tension adjustment for needle bar gear block belt 1) Place the timing belt (8) onto the needle bar gear block (a) and the vertical shaft timing pulley U assembly (7), and then provisionally install tension pulley U (14) so that it is gently pressing against the timing b...

6. ASSEMBLY RH-9820 82 F Belt tension adjustment for driving looper belt <Standard installation when belt is tensioned> Attach the timing belt (22) so that the distance from reference line (A) (for installation: 65 ° position) on the looper base (b) to reference line (B) on the bed is 5 mm or ...

6. ASSEMBLY RH-9820 83 G Looper base and needle bar gear block position adjustment 1) Loosen the socket bolt (6) of the vertical shaft timing pulley U assembly (7). 2) Turn the needle bar gear block (a) until the socket bolt (6) of vertical shaft timing pulley U assembly (7) is toward the front when...

6. ASSEMBLY RH-9820 84 6) Push the vertical shaft timing pulley U assembly (7) up gently until it touches the bearing (1), and then tighten the socket bolt (6). 0932B

6. ASSEMBLY RH-9820 86 1. Bearing 2. Bearing collar 3. Bearing 4. Bearing collar 5. Bearing 6. Lower shaft tension pulley A 7. Lower shaft tension pulley B 8. Socket bolts with washers [3 pcs] 9. Lower shaft 10. Set screws [2 pcs] 11. Set screws [2 pcs] 12. Set screws [2 pcs] 13. Internal retaining ...

6. ASSEMBLY RH-9820 87 B Belt (upper shaft - lower shaft) installation and belt tension adjustment <If the belt ( lower shaft – upper shaft motor) is not installed (if installing the upper shaft motor later)> 1) Place the timing belt (24) (for lower shaft – upper shaft motor) into the groove (...

6. ASSEMBLY RH-9820 89 C Lower shaft provisional installation position * This position is the provisional position for the lower shaft until the procedure in “7-5. Adjusting the looper stroke” is carried out . 1) Turn the upper shaft pulley (d) to the needle up stop position. (Align the pulley groov...

6. ASSEMBLY RH-9820 91 A Install the wicks as shown in the illustration. (Viewed from directly above) (Viewed from the left) (Viewed from the front) 1104B 1103B 1102B ・ Tie in two knots. ・ Cut the ends at alength 2 mm from theknots. Fold twice and passthrough the hole. ・ Tie in two knots. ・ Cut the ...

6. ASSEMBLY RH-9820 94 6-13. Upper thread trimmer mechanism * Install in the positions shown in the illustration. 1. Cylinder assembly 2. Socket bolts [2 pcs] 3. Hammer 4. Hammer guide plate 5. Socket bolts [2 pcs] 6. Cylinder setting plate 7. Socket bolts [2 pcs] 0985B (When at maximum extension) C...

6. ASSEMBLY RH-9820 95 6-14. Threading mechanism * Apply the grease specified by Brother ( MOLYKOTE LONGTERM W2 manufactured by Dow Corning Corporation ) in the places indicated by . Tighten the shoulder screw (11) followed by the nut (12) so that the gimp thread take-up driving plate (9) and the gi...

6. ASSEMBLY RH-9820 99 Routing the air tubes and harnesses <-00 specifications> The air tubes and harnesses are numbered as shown in the illustration. Check the number of each air tube and harness to make sure that they are routed correctly as shown in the illustration. 0987B

6. ASSEMBLY RH-9820 103 G Set the clamp lever shaft (10) so that the amount of protrusion at the end is as shown in the illustration, then assemble crank lever B (13) so that there is no clearance between it and the inside of the clamp lever shaft (10), and then tighten the socket bolt (14). (The le...

6. ASSEMBLY RH-9820 104 6-15-2. X feed shaft holder * Refer to the detailed descriptions on pages 105 and 106 for details on A to D in the illustration. * Apply the grease specified by Brother ( MOLYKOTE LONGTERM W2 manufactured by Dow Corning Corporation ) in the places indicated by . * Apply the g...

6. ASSEMBLY RH-9820 107 6-16. X feed mechanism * Refer to the detailed descriptions on the next page for details on A to C in the illustration. * Apply the grease specified by Brother ( Shin Lube EJ manufactured by Nippon Steel Chemical Corporation ) in the places indicated by . 1. Internal retainin...

6. ASSEMBLY RH-9820 108 A Assemble as shown in the illustration. B Place the pulse motor X assembly (10) against the idler gear (4) so that the amount of play is 0.02 mm or less within a range of 130° as shown in the illustration, and then tighten the two set screws (9). C Standard installation of m...

6. ASSEMBLY RH-9820 112 A Install so that the cord (a) is in the position shown in the illustration. B Align the screw at the front of the timing pulley (3) in the direction of rotation with the screw stop on the motor shaft (b), and then tighten the screw so that the shaft projects by 0.5 - 1.0 mm....

6. ASSEMBLY RH-9820 119 A Cloth work clamp L sideways position adjustment 1) Set so that the clearance between the clamp shaft holder (6) and clamp lever L (17) is at the distance shown in the illustration. 2) After adjusting, tighten the two set screws (20). B Cloth work clamp L forward/back adjust...

6. ASSEMBLY RH-9820 120 C Cloth work clamp R sideways adjustment 1) Set so that the clearance between the clamp shaft holder (31) and clamp lever R (42) is at the distance shown in the illustration. 2) After adjusting, tighten the two set screws (45). D Cloth work clamp R forward/back adjustment 1) ...

6. ASSEMBLY RH-9820 123 A Spring hook installation 1) Provisionally tighten the nut (3) about halfway onto the spring hook (4). 2) Install the spring hook (4) to the cloth work clamp plate (a), and then tighten the nut (3) until the end of the spring hook (4) is flush with the top surface of the clo...

6. ASSEMBLY RH-9820 127 6-22. Upper cover mechanism (upper thread tension release and upper thread take-up mechanisms and upper thread path) * Refer to the detailed descriptions on the next page for details on A to C in the illustration. * Apply the grease specified by Brother ( MOLYKOTE LONGTERM W2...

6. ASSEMBLY RH-9820 131 6-24. Routing the air tubes Cutter cylinder Insert the air tubes (No. 5 and No. 6) of the cutter cylinder (a) into the elbows (b) in the bed base. * Insert the air tubes into the elbows (b) with the same numbers. Upper thread cutter cylinder 1) Pass the air tubes (No. 13 and ...

6. ASSEMBLY RH-9820 132 Valve unit 1) Pass the air tube (No. 1) of the valve unit (e) from the side marked with “1” into the hole in the side of the arm and out into the bottom of the bed. 2) Pass the air tube (No. 1) through the hole in the bed and out from the rear of the bed. Cutting scraps 1) Se...

6. ASSEMBLY RH-9820 133 Upper tension release cylinder Pass the air tube (i) for the upper tension release cylinder through the hole in the arm and out from the side of the rear cover. Connecting the air tubes Insert the air tubes onto the nipples of the solenoid valve assembly (j). * There are numb...

6. ASSEMBLY RH-9820 134 Securing the air tubes Secure the air tubes and the harnesses with the cord holders (k) (2 places). Tubes and harnesses from the feed base 1075B

6. ASSEMBLY RH-9820 135 6-25. Lubrication and greasing and routing the oil tubes * <1> to <8> should be done before carrying out the assembly procedure in “6-1. Cutter mechanism”. * Refer to the detailed descriptions on pages 136 to 140 for details on A to J in the illustration. 1029B A ...

6. ASSEMBLY RH-9820 137 C Cord holder (20) installation 1) Install the cord holder (20) so that the side with the wider hook is on the right as shown in the illustration, and then while gently pushing it in the direction of the arrow, tighten the two screws (21) to secure it in place. 2) Secure the ...

6. ASSEMBLY RH-9820 138 F Installing the lower shaft cover assembly 1) Pass the oil tube (43) through the hole (f) in the lower shaft cover assembly (32). 2) Pass the oil tube <1> from the arm through the felts. G 1) Secure the oil tube (43) with the cord holder #5 (34). 2) Install the two cor...

7. ADJUSTMENTS RH-9820 141 7. ADJUSTMENTS CAUTION Maintenance and inspection of the sewing machine should only be carried out by a qualified technician. Ask your Brother dealer or a qualified electrician to carry out any maintenance and inspection of the electrical system. Turn off the power switch ...

7. ADJUSTMENTS RH-9820 142 Looper height Adjust so that the positions of the eye looper (8) and the looper R (9) are as follows. • The clearance <a> between the eye looper (8) and the spreader L (1) should be equal to the thickness of the lower thread (looper thread). • The clearance between t...

7. ADJUSTMENTS RH-9820 143 7-3. Adjusting the zigzag base line position Preparing a short customized needle Prepare a short needle as described below in order to make very small holes in a piece of paper while checking the needle drop position. 1. Use a grinder or similar to grind the tip of the cur...

7. ADJUSTMENTS RH-9820 144 Adjusting the zigzag base line position The zigzag base line is on the inside of the zigzag. If you change the zigzag width, only the outer needle drop position will change, and the zigzag base line (inner base line) will not change. 1. Move the needle bar gear block ( θ )...

7. ADJUSTMENTS RH-9820 146 7-4. Adjusting the needle and looper timing NOTE: The needle bar moves through two needle drop cycles for each single turn of the upper shaft pulley. The needle drop movement toward the left side (knife cutting side) is called the “ inside sewing position ”, and the needle...

7. ADJUSTMENTS RH-9820 148 7-6. Adjusting the height of the needle bar The standard height for the needle bar is 2.5 mm. (It may be preferable to change this depending on the material and thread.) 1. Remove the face plate. 2. Turn the upper shaft pulley until the tip of the eye looper (1) is aligned...

7. ADJUSTMENTS RH-9820 149 7-7. Adjusting the clearance between the loopers and needle If the needle count has been changed, always be sure to check the clearance between the needle and the loopers, and adjust the clearances if necessary. These adjustments should be made for both the inside sewing p...

7. ADJUSTMENTS RH-9820 150 7-9. Adjusting the spreader installation positions 1. Loosen the set screw (4) and adjust spreader stopper L (5) so that the relative positions of the U-shaped part at the tip of spreader L (1) and the lower thread guide hole (3) in the eye looper (2) are as shown in the i...

7. ADJUSTMENTS RH-9820 152 7-11. Adjusting the height of the throat plate <-00 and -01 specifications> <-02 specifications> (Viewed from the front) (Viewed at an angle from above-right) 1. Remove the right-side work clamp plate (1). 2. Turn the looper base (2) so that it faces as shown i...

7. ADJUSTMENTS RH-9820 154 7-13. Adjusting the cutting surface of the hammer <Adjustment procedure> 1. Remove the hammer. (Refer to the previous page for instructions on removing the hammer.) 2. Check the cutting surface of the hammer. Refer to the illustration at left, and if the cutting surf...

7. ADJUSTMENTS RH-9820 155 7-13-2. Adjusting the contact between the knife and the hammer The knife incision can be seen more clearly if the cutting surface of the hammer is filled over with a marker pen or similar. 1. Operate the hammer three times with the knife making a mark on it each time. 2. I...

7. ADJUSTMENTS RH-9820 157 7-16. Replacing the knife and adjusting its position 7-16-1. Replacing the knife CAUTION Do not operate the sewing machine while a knife and hammer with numbers that are different from those which have been set in programs. If this is not observed, damage to sewing machine...

7. ADJUSTMENTS RH-9820 161 7-18. Adjusting the work clamp lift amounts Adjust the work clamp lift amount <a> to one of the values given below. <For -00, -01 specifications>: 12 mm <For -02 specifications>: 16 mm * The work clamp lift amount <a> is the value which includes the...

7. ADJUSTMENTS RH-9820 162 7-19. Adjusting the work clamp positions The positions of the work clamps relative to the needle plate can be adjusted forward, back and sideways. * Adjust the left and right work clamps so that they are both positioned at an equal distance from the needle drop position. (...

7. ADJUSTMENTS RH-9820 163 7-20. Adjusting the positions of the work clamp plates Adjust the positions of the work clamp plates (3) so that the throat plate (1) and needle plates (2) do not touch during sewing. The standard adjustment is when there is a gap of 0.8 mm between the throat plate (1) and...

7. ADJUSTMENTS RH-9820 164 7-21. Adjusting the cloth opening amounts Adjust so that the opening amounts for the left and right work clamp plates (1) are equal. * The cloth opening amounts should always be 0.8 mm or more on each side. <Opening amount measurement method> 1. Press the TEST key (2...

7. ADJUSTMENTS RH-9820 165 <Cloth opening amount adjustment> 8. Loosen the screw (4). 9. Insert a screwdriver into the notch in the side of the feed base, and turn the adjustment screw (5) to adjust. 10. After tightening the screw (4), measure the opening amounts once more. 11. Repeat steps 2 ...

7. ADJUSTMENTS RH-9820 166 7-23. Adjusting the lower thread feeding amount <-01 specifications only> It is necessary for enough tension to be applied to the lower thread during the time from when the upper thread is picked up by the eye looper at the first stitch until spreader L finishes open...

7. ADJUSTMENTS RH-9820 167 7-24-2. Adjusting the upper movable knife The upper movable knife (1) is adjusted so that only the upper thread that is in front of looper L (2) is cut. If two of the upper thread loops (front and back) are cut, the upper thread trailing length will become too short and sk...

7. ADJUSTMENTS RH-9820 168 7-24-3. Adjusting the position of the thread trimmer lever bracket The position of the needle must be adjusted so that it does not obstruct the upper movable knife when it is at the maximum zigzag width for the outside sewing position. 1. Loosen the nut (1). 2. Turn the sc...

7. ADJUSTMENTS RH-9820 173 7-25-5. Adjusting the thread handler The lower thread and gimp are securely separated and guided by the thread handler (1), after which the lower thread needs to go smoothly into thread nipper D (2), while the gimp needs to go smoothly into thread nipper U (3). NOTE: Princ...

7. ADJUSTMENTS RH-9820 179 0547B 7-27. Adjusting the gimp trailing length <-02 specifications only> The gimp is pressed against the material by means of the twisting of the first 2 - 3 stitches at the sewing start, and is then pulled out continuously. Because of this, if strong tension is appl...

7. ADJUSTMENTS RH-9820 182 7-30. Adjusting the needle bar and looper base turning center The turning center for the needle bar and the looper base is accurately adjusted at the time of shipment from the factory. If the sewing machine has been disassembled (such as when replacing the needle bar gear ...

7. ADJUSTMENTS RH-9820 183 7-31. Adjusting the upper thread loosening amount 1. With the plunger (2) of the upper thread tension release solenoid (1) pushed all the way in, loosen the nut (5) and turn the bolt (3) to adjust so that the clearance between the end of the bolt (3) and the solenoid setti...

7. ADJUSTMENTS RH-9820 184 7-32. Adjusting the lower thread loosening amount 1. Loosen the nut (1). 2. Turn the lower thread release plate (2) by hand or push the plunger (3) of the tension release solenoid from the back to turn the lower thread release plate (2) until the tension release pin (4) is...

7. ADJUSTMENTS RH-9820 185 7-33. Adjusting the looper base home position NOTE: Before carrying out this adjustment, check that the adjustments in “6-9. Needle bar rocking mechanism: Belt tension adjustment for driving looper belt” have been carried out correctly. 1. Remove the left and right work cl...

7. ADJUSTMENTS RH-9820 187 7-34. Adjusting the feed base X home position and Y home position NOTE: * Before adjusting the X home position, check that the adjustment in “6-16. X feed mechanism: Standard installation position for motor unit (idle gear adjustment)” has been carried out correctly. * Bef...

7. ADJUSTMENTS RH-9820 189 6. Press the ENTER key (9). The home position detection operation will be carried out, and the offset value (B) will be saved. NOTE: If you continue to the next step without pressing the ENTER key (9), the offset value will not be changed. 7. Check the results of the adjus...

7. ADJUSTMENTS RH-9820 191 7-36. Adjusting the upper shaft stop position Adjust the stop position so that upper thread loops are maintained when the upper thread is trimmed. 1. While holding down the and keys (1), push the POWER switch at the ON side (2). 2. Press the start switch (3). The motors wi...

7. ADJUSTMENTS RH-9820 194 (Top) 12. Route the tubes as shown in the illustration, and then connect the air hose (9) to the joint (4) and the air hose (10) to the joint (5). 13. Secure the air hoses (9) and (10) in four places using the four bead bands (17) as shown in the illustration. 14. Loosen t...

8. ELECTRICAL MECHANISM 197 RH-9820 8. ELECTRICAL MECHANISM DANGER Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet before opening the cover of the control box. Touching areas where high voltages are present can result in severe injury....

8. ELECTRICAL MECHANISM 198 RH-9820 8-2. Inside the control box and operation panel structure Main P.C. board Secured to the side. This is the P.C. board that controls sewing machine operation. PMD P.C. board Secured to the base plate. This P.C. board drives the pulse motors and solenoids. Power sup...

8. ELECTRICAL MECHANISM 203 RH-9820 8-4-2. Symptoms when there are poor connections This divides the functions of the connectors into five sections, but some connectors have more than one function, so be sure to refer to the trouble symptoms in other sections too. Feed mechanism Trouble symptom Conn...

8. ELECTRICAL MECHANISM 206 RH-9820 8-5. Troubleshooting 8-5-1. Troubleshooting procedure Carry out troubleshooting by following the procedure given below. 1 Checking connectors With the power turned off, check that all connectors are securely inserted while referring to “8-4. Description of connect...

9. ERROR CODES RH-9820 219 9. ERROR CODES DANGER Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet before opening the cover of the control box. Touching areas where high voltages are present can result in severe injury. If a problem shou...

9. ERROR CODES RH-9820 220 Upper shaft motor-related errors Code Cause Remedy Page E110 Needle up stop position error Turn the upper shaft pulley until the point where the error display disappears. If the error display does not disappear, turn off the power and check the connection of the synchroniz...

9. ERROR CODES RH-9820 221 Feed mechanism-related errors Code Cause Remedy Page E200 X-feed motor home position cannot be detected. Problem with X-feed motor or poor X home position sensor connection. Turn off the power, and then check that the X-feed motor connector P10 is connected at the PMD P.C....

9. ERROR CODES RH-9820 222 Communication and memory-related errors Code Cause Remedy Page E401 Connection error detected between the main P.C. board and power supply motor P.C. board when the power was turned on. Turn off the power, and then check that connector P17 on the main P.C. board and connec...

9. ERROR CODES RH-9820 224 Optional device-related errors Code Cause Remedy Page E940 Sub-hammer is not set even though straight buttonhole program is being sewn. (Straight buttonhole position sensor is not responding.) Turn off the power, and then check that connector P12 and connector P24 on the m...

SERVICE MANUAL RH-9820 I6100920B 2007. 03. B (1) Printed in Japan