Throat Plate Base - Duerkopp Adler 669 Service Instructions Manual

2.7

Throat plate base

22
Caution: Risk of injury!
Turn off the main switch.
Check and correct the bobbin case support only with the sewing
machine switched off.
Standard checking
There should be enough clearance between the bobbin case and the
lug of the bobbin case (lug integrated in the throat plate base 3), so
that the needle thread can be unhindered pulled through.
Correction
–
Loosen screw 1.
–
Loosen screw 2.
–
Align the throat plate base 3.
(Clearance 0.6 mm, see sketch)
–
Fasten screws 1.
–
Fasten screws 2.
3 2
1