Upper Thread Tension Adjustment - JUKI HZL-350Z series Service Manual

5-17 U p p e r t h r e a d t e n s i o n
adjustment
Remove front cover and set dial tension
-
to "4".
Use a dial tension gauge (150g) (A) to
take measurement.
Lift the presser foot lever first, and then
-
put the thread of tension
tension disk . (2)
Lower the presser foot, and pull down
-
along the threading direction on the
cover. The standard range should be 50
~ 60g. (3)
Adjust tension by turning plastic screw
-
(a) of dial tension regulator frontward /
backward. (4)
Frontward = weaker
Backward = stronger
Re-check the standard range should be
-
50~60g.
3
gauge into the
24
1
2
4
A
a
backward
forward