Leatherwork Guidebook - Flipbook - Page 22
21
Knots centered — PERFECT STITCH
Thread Tension Adjustment
The correct combination of thread tension (21)
results in a stitch that looks identical on both sides of
the material (i.e., the knots of the stitches are pulled
into the fabric and are no more visible on the top
than on the bottom).
If knots are visible on both the top and bottom
material surfaces, this is an indication that the thread
size is too large for the material being sewn.
22
23
The upper tension knob (22) can be loosened
or tightened to adjust tension. Rotating the knob
clockwise or toward the “+” will increase upper
tension, pulling the knot to the top of the sewn
application (24). Rotating the knob counterclockwise
or toward the “-” will decrease upper tension,
allowing the knot to be pulled to the bottom of the
sewn application (25).
When the presser foot is lifted, the upper tension
disks are pushed apart. This releases the top thread
tension so leather can be removed from under the
machine foot without fighting thread tension.
DO NOT lift the presser foot when the upper tension
knob is less than a 1/2 turn from maximum (turned
snugly clockwise) (23). This amount of tension
should never be required.
NOTE: Decorative cap removed.
19 |
If upper tension is tightened all the way down,
raising the presser foot may bend the lever inside
the machine that separates the disks, preventing the
disks from opening correctly.
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