Beisler 1281-5 - Manual (Page 83)

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