Hook Clearance And Needle Guard - Duerkopp Adler 558 Service Instructions Manual

28.4 Hook Clearance and Needle Guard

1 a
3
b
2
The hook tips should have a clearance of 0.1 mm to the needle.
The hook clearance to the needle remain constant during the whole
turning movement of the hook block. If this is not the case the needle
bar rotation center must be corrected (see chapter 35).
The needle guard 3 is set at the factory. It normally needs no
adjustment.
The needle should lie onto the needle guard 1 until the hook tips have
reached the needle.
When the hook tips are at the center of the needle the described hook
clearance of 0.1 mm must be felt.
Caution Risk of Injury !
Pull the mains plug before setting.
Hook clearance
–
Loosen screws 1 and 2.
–
Set the hook accordingly.
–
Tighten screws 1 and 2 again.
Needle guard
–
With other needle thicknesses align the needle guard 3
accordingly, if necessary.
41