13
TO ADJUST THE HEIGHT OF
THE LOWER LOOPER
Correct Setting:
The height of lower looper is 65.7 mm from center of lower looper shaft as shown in Illustration.
To adjust:
1. Set the upper knife in down position to loosen setscrew A.
2. Turn the handwheel to get the lower looper in rightmost position.
3. Replace the lower looper.
4. Turn the handwheel to get the lower looper in leftmost position.
5. Insert the gauge downwards into the lower looper shaft as shown.
NOTE: If the clearance between the lower looper unit and the lower looper thread guide is too
close, remove the lower looper thread guide.
After the adjustment, attach the lower looper thread guide on the lower looper shaft as
shown.
6. Loosen setscrew A , and move the lower looper up or down to get the tip of lower looper is in line
with guide line of gauge.
7. Tighten setscrew A.
8. Remove the gauge and set the upper knife in up position.
Guide line of gauge
65.7 mm
(Servicing gauge
No.787-G01)
Lower looper thread guide
Lower looper shaft
Lower looper unit
Setscrew A
