Brother S-7200C Service Manual

S-7200A Please read this manual before making any adjustments. SINGLE NEEDLE DIRECT DRIVE STRAIGHT LOCK STITCHER WITH THREAD TRIMMER SERVIC

S-7200A 4. FUNCTION SETTINGS44. FUNCTION SETTINGS 4-1. Maximum sewing speed and start backtack sewing speed setting methods If the LOCK key icon (1)

S-7200A 4. FUNCTION SETTINGS5 4-2. Using the LOCK key When the power switch is turned on, the LOCK key (1) turns on. (The icon (2) is illuminated.)

S-7200A 4. FUNCTION SETTINGS64-4. Setting functions ・ If the LOCK key icon (1) is on, release the lock before carrying out the following operations.

S-7200A 4. FUNCTION SETTINGS7 Becomes higher Becomes lower Becomes lower Becomes higher 4-5. Function

S-7200A 4. FUNCTION SETTINGS8Function No. 16−30 No. Initial value Setting range Setting details 16 3 (minutes) 0–30 (minutes) Overtime function 0

S-7200A 4. FUNCTION SETTINGS9 Function No. 31−46 No. Initial value Setting range Setting details 31 0 0–1 Stopping during start backtacking and s

S-7200A 4. FUNCTION SETTINGS10Function No. 47−60 No. Initial value Setting range Setting details 47 0 0–1 Operation during standing operation whe

S-7200A 4. FUNCTION SETTINGS11 Becomes lower Becomes higher Function No. 61−68 No. Initial value Setting range Settin

S-7200A 4. FUNCTION SETTINGS12Function No. 69 No. Initial value Setting range Setting details 69 0 0–3 Actuator (option) function 0: No function

S-7200A 4. FUNCTION SETTINGS13 Function No. 70−72 No. Initial value Setting range Setting details 70 (NOTE 21) 6 0–6 Option output setting 0: Pul

S-7200A iThis service manual is intended for S-7200A; be sure to read the S-7200A instruction manual before this manual. Carefully read the “SAFETY I

S-7200A 4. FUNCTION SETTINGS14<When set to condense> ・ Start backtacking or end backtacking must be set. ・ For the sewing start, set stitch nu

S-7200A 4. FUNCTION SETTINGS15 Function No. 73−79 No. Initial value Setting range Setting details 73 (NOTE 23) 90 (ms) 50–150 (ms) Thread trimmin

S-7200A 4. FUNCTION SETTINGS16 Function No.80−88 No. Initial value Setting range Setting details 80* 0 -7–7 Treadle backward on (thread trimmin

S-7200A 4. FUNCTION SETTINGS17 Function No. 90−99 No. Initial value Setting range Setting details 90 220 (rpm) 150–INCH (rpm) Thread trimming spe

S-7200A 4. FUNCTION SETTINGS18Function No. 108−114 No. Initial value Setting range Setting details 108 (NOTE 30) 0 (needles) 0–99 (needles) Numbe

S-7200A 4. FUNCTION SETTINGS19 Function No. 115−118 No. Initial value Setting range Setting details 115 (NOTE 35) 10 (1.0 ms) 1–49 0.1–4.9 (ms) O

S-7200A 4. FUNCTION SETTINGS20Function No. 121−130 No. Initial value Setting range Setting details 121 (NOTE 38) 3000 (rpm) 200–5000 (rpm) Speed

S-7200A 4. FUNCTION SETTINGS21 4-6. Clearing saved data (Initialization) <Types of data that are cleared> When saved data is cleared, the foll

S-7200A 5. ADJUSTMENTS 225. ADJUSTMENTS CAUTION Disassembly, assembly, maintenance and inspection of the sewing machine should only be carr

S-7200A 5. ADJUSTMENTS 23 5-2. Adjusting the thread take-up spring <Thread take-up spring position> The standard position of the thread take-u

S-7200A ii2. Notes on safety DANGER Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet

S-7200A 5. ADJUSTMENTS 245-3. Adjusting arm thread guide R The standard position of arm thread guide R (1) is the position where the screw (2) is in

S-7200A 5. ADJUSTMENTS 25 5-5. Adjusting of the feed dog height The standard height of the feed dog (1) when it is at its maximum height above the t

S-7200A 5. ADJUSTMENTS 265-6. Adjusting the feed dog angle The standard angle for the feed dog (1) when it is at its highest position above the need

S-7200A 5. ADJUSTMENTS 27 5-7. Adjusting the needle bar height Reference line (a), which is the second line from the bottom of the needle bar (1)(fo

S-7200A 5. ADJUSTMENTS 285-9. Adjusting the needle and rotary hook timing The tip of the rotary hook (3) should be aligned with the center of the ne

S-7200A 5. ADJUSTMENTS 29 5-10. Quick reverse mechanism 1. Turn the stitch length dial to the maximum setting. 2. Tilt back the machine head. 3.

S-7200A 5. ADJUSTMENTS 305-12. Adjusting the tension release wire If the upper thread trailing length is too short after thread trimming, or if the

S-7200A 5. ADJUSTMENTS 31 5-13. Adjusting the needle up stop position 1. While pressing the needle up/down key (1), turn on the power switch. 2. “n

S-7200A 5. ADJUSTMENTS 325-15. Adjusting the rotary hook lubrication amount (-40[] / 43[]) CAUTION Be careful not to touch your fingers or the lub

S-7200A 5. ADJUSTMENTS 33 5-16. Selecting tension release ・ You can select whether tension release operation is active or not when the presser foot

S-7200A iii CAUTION Sewing This sewing machine should only be used by operators who have received the necessary training in safe use befor

S-7200A 6. REPLACING PARTS 346. REPLACING PARTS CAUTION Replacement of parts should only be carried out by a qualified technician. Use only the

S-7200A 6. REPLACING PARTS 35 6-3. Rotary hook RP If replacing the standard rotary hook with a rotary hook RP (lubrication-free rotary hook) on sub-

S-7200A 6. REPLACING PARTS 366-4. Feed bar shaft, Lifting feed shaft, Needle bar connecting rod unit When changing over these parts, apply grease as

S-7200A 7. APPLYING GREASE (WHEN “GREASEUP” APPEARS) 37 7. APPLYING GREASE (WHEN “GREASEUP” APPEARS) If “GREASEUP" flashes on the main displa

S-7200A 7. APPLYING GREASE (WHEN “GREASEUP” APPEARS) 38 1. Turn the power switch to “OFF”. 2. Remove the screws and the

S-7200A 8. CONTROL SYSTEM 39 8. CONTROL SYSTEM Turn on the power switch (1). A. When the treadle is depressed 1. When t

S-7200A 9. CONTROL BOX AND MOTOR 409. CONTROL BOX AND MOTOR 9-1. Removing and installing the control box DANGER Wait at least 5 minutes after turn

S-7200A 9. CONTROL BOX AND MOTOR41 9-2. Control box and motor rating plate <Control box> ・ Check the phase, voltage and type for the control b

S-7200A 9. CONTROL BOX AND MOTOR 42<Motor> Serial No. 2326M2327M

S-7200A 9. CONTROL BOX AND MOTOR43 9-3. Control circuit board DANGER Wait at least 5 minutes after turning off the power switch and disconnectin

S-7200A iv 3.Warning labels The following warning labels appear on the sewing machine. Please follow the instructions on the labels at all times when

S-7200A 9. CONTROL BOX AND MOTOR 44 (8) Solenoid power supply fuse (5A) Fuses (11) Illumination lamp power supply fuse (5A) For preventing overcur

S-7200A 9. CONTROL BOX AND MOTOR45 9-4. Checking the motor and power supply CAUTION Turn off the power switch and disconnect the power cord from

S-7200A 9. CONTROL BOX AND MOTOR 469-5. Checking the solenoids DANGER Wait at least 5 minutes after turning off the power switch and disconnecting

S-7200A 10. TREADLE UNIT ASSEMBLY 47 10. TREADLE UNIT ASSEMBLY 10-1. Types ・ The two types of treadle unit that are available are the type that cont

S-7200A 10. TREADLE UNIT ASSEMBLY 4810-2. Standard setting values Specification Treadle unit G Treadle unit H Operation Does not control automatic

S-7200A 10. TREADLE UNIT ASSEMBLY 49 10-3. Setting method for standard depression strokes CAUTION Wait at least 5 minutes after turning off the po

S-7200A 10. TREADLE UNIT ASSEMBLY 503) Memorizing the neutral position With your foot released from the treadle, press the thread trimming key (2).

S-7200A 11. STANDING OPERATION PEDAL 51 11. STANDING OPERATION PEDAL The foot plug assembly CDD (J04099-001) that is sold separately is required. 1

S-7200A 11. STANDING OPERATION PEDAL 5211-2. Connectors <At foot plug> <At pedal> <A> Two-step ped

S-7200A 12. TROUBLESHOOTING 53 12. TROUBLESHOOTING ・ Please check the following points before calling for repairs or service. ・ If the following sug

S-7200A CONTENTS 1. MACHINE SPECIFICATIONS ... 1 2. OPTIONAL PARTS... 2 3. NOTES ON HANDLING...

S-7200A 12. TROUBLESHOOTING54 Problem Possible cause Page 5 Skipped stitches at sewing start Thread unravelling at sewing start  Is the thread tak

S-7200A 12. TROUBLESHOOTING 55 Problem Possible cause Page 9 Lower thread is tangled at the sewing start. Spinning of bobbin during thread trimmin

S-7200A 12. TROUBLESHOOTING56 Problem Possible cause Page 13 Broken needles  Is the material being pushed or pulled with excessive force during se

S-7200A 12. TROUBLESHOOTING 57 Problem Possible cause Page 19 “GREASEUP” flashes on the operation panel when the power is turned on.  This displ

S-7200A 12. TROUBLESHOOTING58 Error code Possible cause Page Err 4  Is the motor connector disconnected from the control box? Insert the conne

S-7200A 12. TROUBLESHOOTING 59 Error code Possible cause Page Err 12  Is the solenoid fuse F2 (5 A) blown? Replace the fuse.  Problem w

S-7200A 12. TROUBLESHOOTING60 Error code Possible cause Page Err 21  Is connector CN16 inside the control box disconnected? Insert the connecto

SERVICE MANUALS-7200AI30508-38B2003. 05. B (1) 15-1, Naeshiro-cho, Mizuho-ku, Nagoya 467-8561, Japan. Phone: 81-52-82

S-7200A 1. MACHINE SPECIFICATIONS 1 1. MACHINE SPECIFICATIONS 4 Quick reverse ○ Thread wiper ○ 0 3 5 Lubrication type Minimum lubrication

S-7200A 2. OPTIONAL PARTS 22. OPTIONAL PARTS Part name Part code Solenoid type presser foot lifter set A With knee switch SA1999-001 Solenoid typ

S-7200A 3. NOTES ON HANDLING 3 3. NOTES ON HANDLING About the machine set-up location ・ Do not set up this sewing machine near other equipment such