Brother DB2-DD7100, Service Manual

Page: 8 / 153

1. SPECIFICATIONS
SL-710A
1
1. SPECIFICATIONS
Machine head
30 31 40 41 90 91
Thread trimmer Solenoid
Thread wiper Solenoid
Quick reverse Solenoid
Automatic presser lifter Solenoid
Bobbin thread detector
1 3 5
Use
For light-weight and
difficult-to-sew
For medium-weight
materials
For heavy-weight
materials
Sewing speed 220 - 4,000 rpm 220 - 5,000 rpm * 220 - 3,500 rpm
Start backtacking and continuous backtacking
speed
220 - 1,800 rpm
End backtacking speed 1,800 rpm
Maximum stitch length 4.2 mm 5 mm
Needle bar stroke 29 mm 31 mm 35 mm
Thread take-up stroke 57.4 mm 61 mm
Feed dog 4 row 3 row 3 row (Long stitch)
Feed dog height 0.8 mm 1.2 mm
Presser bar lifter 6 mm
Knee lifter 13 mm
Presser
foot
height
Automatic presser lifter 10 mm
Presser foot pressure 10 - 40N 40 - 79 N 57 - 98 N
Bed size 476 X 178 mm
Arm pocket size 266.5 X 134.5 mm
Needle (DB X 1) NS # 9 # 11 # 22
Rotary hook
For light-weight
materials
For medium-weight
materials
For heavy-weight
materials
Motor AC servo motor (three-phase/single-phase, 4-pole, 400 W)
Control circuit Microprocessor
Weight 36 kg (41 kg for sub-class-900)
*… When using the rotary hook RP(Lubrication-free rotary hook),set the sewing speed to 4,000 rpm or less.
Models
DD7100- A
DD7100-
SL-710A-