Adjusting The Bobbin Thread Tension; Thread Take-Up Spring; Adjusting The Stroke Of Thread Take-Up Spring; Adjusting The Pressure Of Thread Take-Up Spring - JUKI LZ-2290C-F Instruction Manual

4-2. Thread take-up spring

A A
B B
❺
❸
❶
Increase
Decrease
❶
❸
❷
❶
❹

4-1-6. Adjusting the bobbin thread tension

1) The tension of the bobbin thread is adjusted by
turning the tension adjusting screw ❶ .
Turn it clockwise to increase.
Turn it counterclockwise to decrease.
4-2-1. Adjusting the stroke of thread take-up
spring
1) Loosen setscrew ❷ .
2) Turn tension post ❸ clockwise (in direction A),
the stroke of the thread take-up spring will be
increased, and turn the post ❸ counterclockwise
(in direction B), the stroke will be decreased.
4-2-2. Adjusting the pressure of thread take-up
spring
1) Loosen setscrew ❷ , and remove thread tension
(asm.) ❺ .
2) Loosen tension post setscrew ❹ .
3) Turn tension post ❸ clockwise (in direction A),
the pressure will be increased, and turn the post
❸ counterclockwise (in direction B), the pres-
sure will be decreased.
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