Needle bar height and needle penetration points
1. Setting the needle bar height
Requirement:
The vertical clearance between the right overedge needle and the top edge of the needle plate must be
10.3 mm when the needle bar 1 is at its upper dead center (figure 1).
Check:
● Turn the handwheel in the normal direction until the needle bar 1 is at its upper dead center (u.d.c.).
● Insert the right overedge needle into the needle holder 2 as far as it will go.
● Check the needle bar height (measurement A) using the adjustment gauge.
Setting:
● Remove the face cover and the light bulb socket as described in the adjustment and repair
instructions.
● Turn the handwheel in the normal direction until the needle bar 1 is at its upper dead center (u.d.c.).
● Slightly loosen the screw 3 of the needle bar connection (figure 2).
● Move the needle bar 1 upwards without turning it until the needle touches the adjustment
gauge (measurement A).
● Tighten the screw 3.
Test:
● Check the clearance.
The needle holder must be parallel to the machine housing.
14
To Next Page
Loading...
Need help?
General
