Adjusting The Presser Foot Floating Amount (Minute Lifting Amount); Adjusting The Trailing Length After Thread Trimming (Models With Thread Trimmer Only) - Brother T-8422C Instruction Manual

10. THREAD TENSION

10-3. Adjusting the presser foot floating amount (minute lifting amount)

Raise
10-4. Adjusting the trailing length after thread trimming (models with
thread trimmer only)
Longer
Shorter
2926M
53
3096M
• When sewing stretch materials and materials with long
• In addition, this can be useful for increasing ease of
1. Turn the sewing machine pulley by hand to move the feed
2. Use the lifting lever to lower the presser foot (1).
3. Loosen the nut (4).
4. Use a hexagon wrench to turn the adjusting screw (5) to
Floating amount
5. Tighten the nut (4).
* After making the adjustment, sew a piece of material to
< Guide to adjustment when sewing curves >
When the material is placed under the presser foot (1) and
Lower
the feed dog (2) is moved to its lowest position and the
material is moved, there should ideally be some resistance
in the material.
If the floating amount is too small
• Ease of working (handling) will be poorer when sewing
If the floating amount is too large
• The stitch lengths and seam lines will be unstable.
3097M
35 mm
or more
Adjust by turning the pretension (1).
Trailing thread
2258B
T-8421C, 8422C, 8452C, 8722C, 8752C
pile, you can make minute adjustments to the floating
amount for the presser foot (1) in accordance with the
material.
working when sewing curves.
dog (2) below the needle plate (3).
adjust the floating amount.
• To raise the presser foot (1) ...
Turn the adjusting screw (5) clockwise.
• To lower the presser foot (1) ...
Turn the adjusting screw (5) counterclockwise.
check the floating amount.
curves.
At the time of thread trimming, the thread tension is
loosened and tension is applied by the pretension (1) only.
The normal trailing length for the upper thread is 35 mm.
If the tension of the pretension (1) is increased, the
lengths of the threads trailing from the needle tips will be
reduced; if the tension is reduced, the lengths will be
increased.