– 91 –
1. Remove the timing belt
from the lower sprocket
.
2. Remove the hand-wheel.
3. Remove the aperture plate.
4. Remove the set screw
of the reverse feed cylinder installation
base
and lower the installation base
in the direction of arrow
A until the arm hole
in the arm can be observed. (Except for LU-
2212N-7 and LU-2220N-7)
5. Insert the hexagon wrench (3 mm) through the arm hole
and
loosen the set screw
of the main shaft bearing bush.
6. Loosen the sprocket set screw
.
7. Fit the top end of the screwdriver in notches
and
on the arm
and draw out the main shaft bearing bush (assembly).
8. Shift the sprocket in the direction of arrow C as illustrated in the
figure and shift the timing belt in the direction of arrow B.
9. Push the timing belt
out from the hole in the machine arm and
draw it in the direction of arrow D to detach it from the main shaft
.
10. Remove the feed adjusting tension spring
from the feed adjust-
ing eccentric pin.
Assembling and Disassembling Procedure
Results of Improper Adjustment
3’ R e f e r t o [ 3 - ( 1 7 ) a n d ( 1 8 )
A p e r t u r e P l a t e R e m o v a l
Procedure (for LU-2212N-7and
LU-2220N-7)] for how to remove
the aperture plate for LU-
2212N-7.
