Baby Lock BL-101, Service Manual

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14. ADJUSTING GUIDE FOR JET- AIR THREADING
(EXCEPT BLE1SX)
NOTE: In case that adjusting JET AIR THREADING, do not lay down
the machine body on the side.
15
c
) In case that the end of joint pipe is not in the center of joint pipe receiver.
1) Adjustment of upward and downward direction
Check and confirm whether upper, lower and chain looper are in the standard position
(See P. 3 , P.4 and the service manual.)
Depress the machine lock button and bring the joint pipes to the far left position.
(the locked position)
Loosen the 2 screws of threading position setting plate with hexagonal wrench.
Slightly rotate handwheel with right hand (within the angle of 10 degrees) while pushing
the lock button and moving the releace lever right and left direction slowly, and gently
with left hand, find out the best position that the end of joint pipes are in the center
of looper joint pipe receivers.
When you tighten 2 screws, you push handwheel to the leftward direction with your
right hand and push the threading position setting plate to the rightward direction with
your left hand. You are required to check a play of handwheel rightward and leftward
direction.
2) Adjustment of forward and backward direction
You can adjust the position of upper, lower and chain looper joint pipe receivers forward
and backward direction by bending with tool.
(In our factory, we use the tool as shown below, to adjust it)
Fixing screws
Threading position
setting plate
Upward and downward direction
Forward and backward direction
Tool