Table of Contents
Advertisement
Adjustment Procedures
1. Positioning adjustment of wiper unit
(1) Loosen the wiper unit setscrew
the clearance between wiper's lower end surface C and the head
section D attains 21 ± 1mm when the wiper cylinder
2.
Adjustment of wiper stroke
(1) Loosen the fixing nut
stopper
in Directions A and B.
o
Direction A → Wiper stroke is decreased.
o
Direction B → Wiper stroke is increased.
(2) After wiper stroke adjustments, tighten the fixing nut
stopper and fix the wiper stopper
(Caution) If the stroke is changed, the clearance is also changed
between wiper's lower end surface C and the head section
D when the wiper cylinder
loosen the wiper unit setscrew
so that the clearance between wiper's lower end surface
E and the head section F attains 1
to adjust the unit overall so that
of the wiper stopper and move the wiper
.
is returned. Therefore,
to adjust the unit overall
0
mm.
– 0.5
– 18 –
Results of Improper Adjustment
o If the amount of wiper motion is
small, unthreading will be caused
at the sewing start.
is actuated.
o If the amount of wiper motion is
large, poorly tense stitches may
occur at the sewing start.
of the wiper
Advertisement
Table of Contents
