To Adjust The Thread Tensions - Janome AirThread 2000D Service Manual

To adjust the thread tensions

Use a standard thread #50. Do not pass the thread through the top cover thread guide.
Standard tension:
Left needle: Tension dial set to 3, 30-40 gf, Tension dial set to 9, 80 gf or more
Right needle: Tension dial set to 3, 15-19 gf, Tension dial set to 9, 50 gf or more
Upper looper: Tension dial set to 3, 9-13 gf, Tension dial set to 9, 30 gf or more
Lower looper: Tension dial set to 3, 18-22 gf, Tension dial set to 9, 55 gf or more
Thread tension
plate
Notch of
the thread
tension plate
Thread tension dial
To pull the thread to this direction
Notch of
the thread
tension plate
Turn the dial to the
direction (A)
to loosen
the tension
Turn the dial to the
direction (B)
to tighten
Mechanical Adjustment
Thread
Holding the adjusting plate
raised with a screwdriver,
turn the dial.
Adjusting
0
plate
1
2
To adjust:
1. Use a standard thread to check the tension.
2. If the thread tension is not correct, turn the tension
dial so that the thread tension becomes the value
represented by "3" of the dial (ignore the real number
on the dial).
3. Remove the top cover.
4. Raise and hold the adjusting plate with a screwdriver.
Turn the dial to match the position of "3" with the notch
(position of the setting mark on the top cover).
5. Check the thread tension again. Repeat the procedure
of steps 2 and 4 until the thread tension becomes
correct.
6. Attach the top cover.
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MODEL: AirThread 2000D