Brother International BM-917B Instruction Manual - English - Page 6

CONTENTS 1.NAMES OF MAJOR PARTS 1 2.MACHINE SPECIFICATIONS 1 3.TABLE PROCESSING DIAGRAM ......... 2 4.MOTOR 3 5.INSTALLATION 4 5-1. Installing the machine head 4 5-2. Installing the belt 5 5-3. Installing the button tray 5 5-4. Installing the cotton stand 5 5-5. Ground Wire Connections 6 5-6. Lubrication 6 6.TEST OPERATION 7 7.TURNING THE MACHINE PULLEY BY HAND 7 8.PREPARATION BEFORE SEWING ...... 8 8-1. Installing the needle 8 8-2. Threading 9 8-3. Adjusting the thread take-up lever 10 8-4. Vertical feed and transverse feed positioning 11 8-5. Setting the button 12 8-6. Setting the number of stitches 13 9.SEWING 14 9-1. Checking the needle drop position 14 9-2. Sewing 14 10.THREAD TENSION 15 10-1. Main thread tension 15 10-2. Adjusting the sub tension timing 15 10-3. Adjusting the thread presser tension opening amount 15 10-4. Adjusting the auxiliary tension 16 10-5. Adjusting the rotor 16 10-6. Adjusting the presser arm pressure 16 11.CLEANING 17 12.STANDARD ADJUSTMENTS 18 12-1. Adjusting the needle bar height 18 12-2. Adjusting the needle and looper timing.........18 12-3. Adjusting the needle and looper clearance...19 12-4. Adjusting the needle guide 19 12-5. Adjusting the thread handler 19 12-6. Adjusting the machine pulley clearance in the direction of thrust 20 12-7. Adjusting the brake 20 12-8. Adjusting the button clamp lift amount..........20 12-9. Adjusting the button opener 21 12-10. Adjusting the fixed knife and movable knife ...22 13.INSTALLING OPTIONAL PARTS........23 13-1. Presser arm 23 13-2. Feed plate 24 13-3. Button clamp set 24 14.TROUBLESHOOTING 25 BM-917B, 917C