HappyJapan HCD2-1501-40, Руководство по обслуживанию

Страница: 67 / 198

65
3-5-1 Exchange and adjustment of rotary hook timing
1. Remove needle plate. (Fixing screw 2 pcs)
2. In case of you would like to replace rotary hook to new one,
please remove retainer on bobbin case holder and loose
three screws on rotary hook.
Referring to [3-5-2 Adjustment of retainer on rotary hook]
adjust retainer on bobbin case holder
In case of you do not replace rotary hook, do not need
remove retainer. Just loose three screws on rotary hook.
3. Bring needle down.
4. Turn upper shaft and set dial disc to [ 25 degrees ].
<Caution> <Note> Please turn shaft and down needle
carefulness to needle hit to inner rotary hook.
Dip point of Inner hook for retainer should upper position
Like "Picture 5".
"Needle should pass a hole behind of dip of inner hook."
5. Adjust rotary hook timing.