Baby Lock EUPHORIA BLC4 Service Manual page 2

1. Adjustment of Needle, Chain looper & Presser foot
From the right side
of the C3 needle
2 +0.1
0
Chain looper adjustment
Chain needle thread take-up
is lowest position.
Height of needle thread take-up
All adjustments are done by Organ needle ELx705CF #90
Height of needle
Needle plate
C1 needle center and
chain looper tip match.
Chain needle thread take-up timing
Adjusting each gap
Gap 0
Chain looper needle guard
Gap 0.02 ~ 0.15
When passing a chain looper
Height of presser foot
Height of feed dog
Chain needle thread take-up
is lowest position.
1
0.3 ~ 0.4
Front and rear
needle guard
When chain looper does not pass
Needle plate upper surface
When the ATD front thread
tension plate is closed.
(Timing when a gap occurs
in the thrust of the thread
tension plate shaft.)
The middle of the C2 and C3 needles
and the tip of the looper match.
ATD timing