JUKI AMS-210E Series Engineer's Manual page 17

Adjustment Procedures
If the main shaft eccentric cam
cam should be positioned first.
1. Loosen 2 set screws
2. Remove 4 set screws
3. Turn the main shaft in the forward direction
lowers and the clearance between the needle bar connecting
and needle bar lower bushing
4. Secure the crank balancer
tions that 2 set screws
positioned and the balancer
to make it into contact with the main shaft eccentric cam
tightening 2 set screws
is not secured, the main shaft eccentric
securing the crank balancer
, then remove the crank rod cover
so that the needle bar
A
is 4.6 mm.
with 2 set screws
securing the balancer
is moved in the direction of Arrow
, tighten them alternately.
.
.
under the condi-
are horizontally
B
. For
– 12 –
Results of Improper Adjustment
o If the mounting angle of the crank
balancer is wrong, vibration
during sewing will be intensified.
o If the sewing machine is used for
a long time under the condition of
wrong securing position, the life
of main shaft bearing may be
shortened.
o If the crank balancer
moved in the direction of Arrow
, it may interfere with the sew-
B
ing machine frame.
is not