Specifications

7. Remove the clamping devises from each end of the V-rail and reinstall all covers
that were removed during the procedure.
8. Power up the peripheral and position the needle cases to needle #5.
9. Go into the Head Timing menu and bring needle #5 down slowly, using the
key.
10. Check for the needle centered in the needle plate hole.
11. If a slight recentering is required:
a) Loosen the four needle case screws installed and tightened in steps 4 and 5.
b) Reposition the needle case within the tolerances of the screw holes.
c) Retighten the screws, crossing diagonally during the tightening sequence to
enable even tightening.
Head #s 2, 3, and 4
1. Insure the following conditions are set:
a) The cross roller bearing is properly installed and centered as described in the
section titled Cross Roller Bearing Centering.
b) The retainer plate assembly bearings are properly adjusted as described in
the section titled Retainer Plate Bearing Adjustment.
c) The bearing retainer plate assembly is clamped from moving left or right by
a clamping device on each end of the V-rail.
d) The embroidery head is at its mechanical "head up" position.
2. Refer to Figure 3-28 and insert the needle case lower rail into the lower rail
retainer. Insure the grabber blade fits into the grabber bar assembly at the
bottom of the needle case.
3. Rotate the upper part of the needle case into position on the front of the head as
you insure the following alignments:
a) All the take up lever slots are positioned onto the take up lever guide rail
and the active take up lever gear teeth are engaged with the take up
lever drive gear teeth. With the embroidery head still in the head up
position, insure the top tooth of the take up lever drive gear engages
with the 5th "valley" of the take up lever gears.
3 - 38 Needle Case
EMT 10/4T Technical Manual Melco Embroidery Systems