74
A
A
B
Check the Rotational Positioning
of the Shuttle Race Guide Shaft
1�
Remove the needle plate (p� 55,
18
)
and feed dog (p� 61,
18
)�
2�
Remove the bobbin case and bobbin, but
leave the retaining ring (p� 36,
B
) and gib hook
(p� 36,
D
) installed�
3�
Rotate the balance wheel until the needle
enters the shuttle (
74
)�
If positioned properly, the needle is centered
in the “triangular” opening of the retaining ring
cap spring from front to back (
A
)�
4�
Minor adjustments can be made by loosening
the two screws (
B
) to slide the cap spring
forward or back�
If more movement is required, you’ll need
to adjust the rotational positioning of the
shuttle race guide shaft (p� 54)�
Adjust the Rotational Positioning of the Shuttle Race Guide Shaft
1�
Rotate the balance wheel until the needle enters the
shuttle (
74
)�
2�
With left hand, grab the shuttle race guide shaft (
D
) so
the left-right positioning doesn't change (p� 49)�
3�
With right hand, loosen the clamp screw (
E
) slightly�
NOTE: The clamp should be tight enough to keep
the shuttle race guide shaft from moving too freely�
Incremental loosening works best�
4�
Adjust the shuttle race guide shaft (
D
) so that the
needle is positioned correctly within the retaining ring
cap spring (
A
)�
5�
Once you've confirmed correct positioning, tighten the
compressible timing clamp screw (
E
)�
6�
Finally, confirm p. 50,
70
has not shifted�
You have now completed timing your Ultrafeed�
75
D
E
53 |
Sailrite�com
Ultrafeed
®
LSZ Guidebook
| 54
