Singer Curvy 8763 Service Manual page 22

Service Manual
9. Needle timing to feed dog
Note: After adjustment, be sure to follow "Needle timing to shuttle".
As horizontal and vertical feed motion is unitized on this model, adjustment of feed
timing is as follows:
Checking:
1. Bring needle bar to its highest position by turning hand wheel.
2. Check to see if feed dog starts to move when needle starts to go down by
turning hand wheel towards you.
Adjustment:
1. A djust the angle of timing gear to lower shaft with 2 screws (A1 & A2) on timing gear
loosened and hex driver inserted into one of the screws by turning main shaft with hand
wheel,.
If feed-dog motion too early → Turn hand wheel towards you.
If feed-dog motion too late
2. Tighten one of two screws temporarily and check feed-dog motion.
3. After adjustment, tighten screws (A1 & A2) securely.
Feed dog starts to move a little bit
earlier than when needle starts to
go down.
→ Turn hand wheel away from you.
Model
COSMO-II series
A 1
Original issue
Dec.2007
Page 22/47