MECHANICAL ADJUSTMENT
BACKLASH (LOWER SHAFT GEAR)
TO CHECK:
1.
Remove screw (A) to remove the needle plate (B) and bobbin holder (C).
2.
Turn the hand wheel slowly toward you until the tip of the rotary hook (D) comes
within the width of the feed dog (E).
3.
Rotate the hook race clockwise and counterclockwise by hand and check the play
(J). It should be within 0.8 mm.
If there is more than 0.8mm backlash between the gears, adjust as follows.
ADJUSTMENT PROCEDURE:
1.
Remove the bed cover (See page 6), and loosen hexagonal socket screw (F).
2.
Turn the lower shaft bushing (G) in direction of:
* (H) when the play at the tip of rotary hook is too small.
* (I) when the play at the tip of rotary hook is too large.
4.
Tighten hexagonal socket screw (F) firmly after the adjustment.
16
Содержание DE 5024
Страница 1: ...SERVICING MANUAL DE 5024...
Страница 29: ...2 7 WIRING OF MACHINE SOCKET...