JUKI AMB-289, Engineer'S Manual

Page: 65 / 177

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Removing active tension
1. Remove face plate
. "Refer to (2) Disassembling and assembling
the face plate."
2. Remove thread tension disk lock nut , and remove thread tension
disk .
3. Loosen active tension setscrew , and remove active tension (VCM)
from face plate .
4. Fix the flat section of active tension shaft with a spanner or the like,
loosen active tension stud adjustment nut , remove active tension
stud , and remove spring setscrew on the opposite side as well.
5. Cut the cable clip band fixing temperature sensor , and remove
temperature sensor with setscrew .
Assembling active tension
1. Fix the flat section of active tension shaft with a spanner or the like,
insert spacer , spring and washer , and tighten it with spring
setscrew .
2. Screw in active tension stud with adjustment nut to active ten-
sion shaft. Adjust the end of active tension stud to the end of
adjustment nut to 1 ± 0.3 mm, and tighten adjustment nut .
3. Install temperature sensor with setscrew , and fix the lead wire
of temperature sensor to the lead wire of active tension with
the cable clip band.
4. Adjust so that active tension shaft comes to the center of the hole of
active tension spacer , and fix active tension to face plate
with active tension setscrew .
5. Insert two thread tension disks and one piece of washer to
active tension stud , and tighten active tension stud with adjust-
ment nut .
6. Attach face plate . "Refer to (2) Disassembling and assembling
the face plate."
Procedures of disassembling / assembling Caution in disassembling / assembling