3-17 Upper thread tension adjustment
- Set the dial tension (a) to "4". (1)
- Use a dial tension gauge (150g) (b) to take
measurement. (1)
- Put dial tension thread into gauge's hook
and pull, the standard range should be
70~80g.
- Remove the face plate, back cover, and
front cover.
- Adjust the tension by turning plastic screw
(c) of dial tension regulator fortward/
backward. (2)
forward = weaker
Backward = stronger
- Re-check the standard range should be
70~80g.
To Next Page
Loading...
