Baby Lock BLE1 Service Manual page 13

13. TROBLESHOOTING GUIDE FOR JET- AIR THREADING
NOTE: In case that the looper threader does not work properly,
Search the spot that has a problem
a) Check whether the pump works properly or not.
Depress the looper threading lever while pinching the cylinder
tube between your thumb and fingers and check whether there
is an air leak or not.
In case that you have an air leak, see 13-a).
b) Check whether the joint pipes move smoothly or not.
Depress the machine lock button and bring the joint pipes to
the far left position. (the locked position)
Move the release lever right and left direction slowly and
gently while pushing the machine lock button and check whether
the joint pipes move smothly or not.
In case that the joint pipes do not move smoothly, see 13-b).
(p.12)
c) Check whether end of the joint pipes are in the center of
the joint pipe receivers or not.
By same method as mentioned a), check whether end of the
joint pipe is in the centerof the pipe receiver or not.
In case that the end of the joint pipes are incorrect position,
see 13-b). (p.13)
please check and confirm the following points.
(p.11)
Pipe receiver Joint pipe
12
(EXCEPT BLE1SX)