DURKOPP ADLER 878-M PREMIUM, Service Instructions Manual

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Setting the hook and the needle bar
34 Service Instructions 878-M PREMIUM - 03.0 - 10/2019
10 Setting the hook and the needle bar
10.1 Hook height
Proper setting
The distance (A) should be 1.7 to 1.8 mm.
Fig. 22: Setting the side distance of the hook
1. Loosen the screw (1).
2. Loosen the screws (3).
3. Move the hook vertically to the distance (A).
4. Tighten the screws (3).
WARNING
Risk of injury from sharp or moving parts!
Punctures and crushing possible.
Before setting the hook and the needle bar, switch
the sewing machine off.
NOTICE
Property damage may occur!
An erroneous distance between the needle and the hook tip can
result in damage caused to the sewing machine, needle breakage
and thread damage.
After fitting a needle of a different strength, check the distance to the
hook tip and adjust it if necessary.
(1) - Screw
(2) - Ring
(3) - Screws
①
②
③
A