3.4
Direct sewing drive
3.4.1
Setting the reference
Caution: Risk of injury!
Switch the main switch off.
Check and adjust the hook setting only with the sewing unit switched
off.
Standard
When the needle is in the position “
7 mm after the bottom dead
centre
”, the drive belt has to be put on in such a way that the feather
key 2 in the motor shaft points to the marking 1 in the motor casing.
Correction
–
Remove the toothed belt.
–
Move the needle bar in the position “
7 mm after the bottom dead
centre
” by handwheel.
–
Turn the motor shaft in such a way that the feather key 2 in the
motor shaft points to the marking 1 in the motor casing.
–
Put the toothed belt on again.
7 mm
bottom dead centre
3
21
1
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