2.2 Hook and spreader eccentric
Caution: Danger of injury!
Switchthemainswitchoff.
Adjust the eccentrics only with the sewing machine switched off.
Standard checking
When the arm shaft is staked out with arresting pin 1, it should
be possible to stake out the hook eccentric 3 and the spreader
eccentric 4, too.
–
Stake out the arm shaft with arresting pin 1.
Important !
In this position the needle bar must be in the top dead centre in
front of the left entry point.
–
Check with the arresting pin 2 whether the hook eccentric 5 and the
spreader eccentric 6 can be staked out.
Correction
–
Stake out the arm shaft with the arresting pin 1.
–
Loosen the screws at the hook eccentric 3.
–
Turn and stake out the eccentric.
–
Tighten the screws.
–
Loosen the screws at the spreader eccentric 4.
–
Turn and stake out the eccentric.
–
Tighten the screws.
5
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