Table Of Contents - Brother DB2-B727 Instruction Manual

1. NAMES OF MAJOR PARTS
2. MACHINE SPECIFICATIONS
3. WORK TABLE AND MOTOR
3-1. Work Table ............................................ 3
3-2. Motor (B727) ......................................... 4
4. OPTIONAL PARTS
....................................... 05
5. INSTALLATION
............................................. 06
5-1. Installing the oil pan ............................ 7
5-2. Installing the machine head ............... 7
5-3. Installing the knee lifter assembly ..... 8
5-4. Adjusting the knee lifter ...................... 9
5-5. Installing the belt ................................. 10
5-6. Installing the bobbin winder ............... 10
5-7. Installing the belt cover ....................... 11
5-8. Installing the cotton stand .................. 14
5-9. Ground Wire Connections (B727) ...... 14
5-10. Lubrication ............................................ 15
5-11. Checking the machine pulley
rotating direction .................................. 16
5-12. Test operation ....................................... 17
6. PREPARATION BEFORE SEWING
6-1. Installing the needle ............................ 18
6-2. Removing the bobbin case ................. 19
6-3. Winding the lower thread ................... 20
6-4. Threading the lower thread ................ 22
6-5. Threading the upper thread ................ 23
6-6. Adjusting the stitch length .................. 24
7. SEWING
......................................................... 25
7-1. Sewing .................................................. 26
CONTENTS
...................... 01
8. THREAD TENSION
..................... 02
.................... 03
9. STANDARD ADJUSTMENTS
........... 18
10. REPLACING THE FIXED KNIFE
11. CLEANING
12. TROUBLESHOOTING
13. GAUGE PARTS
DB2-B727, B728 (English)
7-2. Backtacking ........................................... 26
...................................... 27
8-1. Adjusting the thread tension .............. 27
8-2. Adjusting the presser foot pressure .. 29
8-3. Adjusting the trailing length
after thread trimming (B728) .............. 30
9-1. Adjusting the presser foot height ...... 32
9-2. Adjusting the feed dog height and angle 33
9-3. Adjusting the needle bar height ......... 35
9-4. Adjusting the needle and feed
mechanism timing ............................... 36
9-5. Adjusting the needle and rotary
hook timing ........................................... 38
9-6. Adjusting the thread tension spring .. 39
9-7. Adjusting arm thread guide R ............ 41
9-8. Adjusting the difference between the
forward and backtack stitch lengths ........ 42
9-9. Adjusting the tension release timing ....... 43
9-10. Adjusting the walking foot
and presser foot ................................... 44
9-11. Adjusting the rotary hook
lubrication amount ............................... 47
9-12. Adjusting the oil pump ....................... 47
9-13. Adjusting the synchronizer (B728) ..... 48
AND MOVABLE KNIFE (B728)
10-1. Replacing the fixed knife ..................... 50
10-2. Replacing the movable knife ............... 51
................................................... 52
........................................... 72
................... 31
................ 50
................................ 56