2022-Ultrafeed LSZ Guidebook - Flipbook - Page 41
4. Burred/Damaged Shuttle Gib Hook or Retaining Ring Cap Spring
A machine bind or needle strike to the shuttle gib hook (A) or retaining ring cap spring (B) may result in a burr or damage,
which can cause the thread to snag.
Remove any burrs by polishing them with emery paper or a fine file. If badly damaged, replace with a new retaining ring
cap spring (#160311) and/or a new shuttle gib hook (#960122).
5. Machine Has Gone Out of Timing
If skipped stitches continue, the machine has probably gone out of timing. The timing is checked by determining the
relationship of the needle to the gib hook point.
To reset the timing on your machine, follow the steps outlined in “Ultrafeed Timing” (p. 45).
56
Burred/
Damaged
Area
A
Burred/Damaged Area
B
> Retaining Ring Cap Spring
> Shuttle Gib Hook
Scan to watch a video
on how to maintain and
replace the retaining ring
cap spring and gib hook.
Ultrafeed® LSZ Guidebook
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