Using The Feed Dog Locus - Brother S-7300A Instruction Manual

8. NEW FUNCTIONS

8-3. Using the feed dog locus

Select the feed dog locus according to the sewing application. (4 types)
No. Icon
Standard
1
2
3
Responsiveness to heavy-weight materials is improved compared to previous -3 specifications. [-[][]3 specifications only]
65
1. Press the special locus key.
Diagram of feed
locus (Sewing speed/sewing pitch)
Feed
direction
Feed
direction
Feed
direction
Feed
direction
1. Use a genuine Brother rotary hook (SB6568001).
2. Replace gauge parts as necessary.
3. If necessary, replace the presser bar, presser spring,
4. Press the special locus key, and then select No. 2.
NOTE:
S-7300A
Specifications
5000sti/min / 4.0
4000sti/min / 5.0
4000sti/min / 3.0
3500sti/min / 4.0
2000sti/min / 5.0
4000sti/min / 3.0
3500sti/min / 4.0
2000sti/min / 5.0
2000sti/min / 4.0
Recommended needle plate (SB5244001)
Recommended feed dog (SB5226001)
needle bar and main tension spring to those for -5
specifications.
The sewing speed will be subjected to the following limits
(sewing speed/sewing pitch).
・4000sti/min / 3.0
・3500sti/min / 4.0
・2000sti/min / 5.0
Result
Improved thread tightening
Fewer needle breakages
Reduced thread tightening
Improved feeding
Fewer needle breakages
than No. 2