Specifications

3. Loosen the large socket
head screw in the locking
collar for the Top Bobbin
Drive Pulley (see Figure
4-21) and rotate the belt
and pulley slightly until
the movable knife just
contacts the select
position fixture (see
Figure 4-20).
4. Stop rotating and hold the
belt and pulley in place
while you tighten the
large socket head screw
in locking collar to
45
inch lbs (6.22 km) of
torque.
5. Remove the select position fixture.
6. Press the key to rotate the head to the head up position.
7. Perform the select position checking procedure again, to check that the movable
knife now just contacts the select position fixture in the needle plate hole
between 311 and 313 degrees.
8. Insure all areas loosened to adjust for select position are properly retightened
before continuing.
9. Refer to the hook timing information in this manual. for the procedure to reset
hook timing.
socket
head cap
screw
Top Bobbin
Drive Pulley
belt
Locking
Collar
TOP, REAR of Head
Figure 4 - 21
4 - 26 Trimmer Adjustment Procedures
EMT 10/4T Technical Manual Melco Embroidery Systems