Specifications

A5.Loosen the V-rail socket
head cap screw on the
side you are attending.
(With the upper needle
case cover off, you can
reach the screw through
the front of the needle
case.)
A6.Lightly pry in this area and
retighten the socket head
cap screw.
A7.Check the adjustment as
described in step 7 and
repeat until it is properly
achieved.
A8.Repeat the procedure for
the bearing on the other
side.
Lower Rail Retainer Adjustment
This adjustment affects the forward and backward movement of the bottom of the
needle case. Do not make the adjustment so tightly that you preload the roller
bearing in the head so it wears prematurely. Do not have so much free play that
the needle has excessive movement.
pry lightly
with a flat
blade screw
driver here
Needle Case
right side plate
needle
case
V-rail
Figure 2 - 21
gap between zero
preload and .002"
lower rail
retainer
roller
bearing
screw (under
lower rail retainer)
needle case
lower rail
(needle case
removed to
show detail)
NOTE: if trimmer option
installed, grabber parts
must be removed to
access screw.
front of
head
Figure 2 - 22
2 - 24 Head Section
EMC 10/4 Technical Manual Melco Embroidery Systems