Adjustment Of Thread Take-Up; Trouble Shooting - Baby Lock BLCS Service Manual

7. Adjustment of thread take-up

CORRECT POSITION: When thread take-up is lowest position, thread take-up and
thread guide are same position. See illustration below.
a). Rotate the machine pully and bring thread take-up at the lowest position.
b). Loosen thread take-up height position adjusting screws.
c). Adjust the thread take-up to correct position. See illustration below.
d). Tighten the fixing screws.
Correct Position
(Thread take-up is
lowest position.)

8. Trouble Shooting

7-1 NEEDLE THREADS ARE UN BALANCED ;
* Is the BLCS threaded correctly?
* Are the threads snapped in the head guide?
* Are the threads recommended high quality?
7-2 LOOPER THREADS ARE UNBALANC ED ;
* Is the BLCS threaded correctly?
* Are the threads snapped in the head guide?
* Are the threads recommended high quality?
7-3 THREAD BREAKS ;
* Is the BLCS threaded correctly?
* Are the threads snapped in the head guide?
* Are the threads recommended high quality?
7-4 JET AIR THREADER DOES NOT WORK
*Is air deflated from pump?
*Are pipes connected properly?
*Are there any lints or thread in pipes?
See Instruction Book P.14,15.
See Instruction Book P.15.
See Instruction Book P.7 .
See Instruction Book P.14,15.
See Instruction Book P.15.
See Instruction Book P.7.
See Instruction Book P.14,15.
See Instruction Book P.15.
See Instruction Book P.7.
See P.13.
See P.13.
7
Thread take-up
height position
adjusting screws
BLCS3