Specifications

14. You may reinstall the upper needle case cover at this time. The lower needle
case cover must, however, remain off to perform the needle bar height
adjustment.
15. After installing a new needle bar, you must adjust the needle bar height. Refer
to the peripheral operation manual for the adjustment procedure for needle bar
height.
16. When the needle bar height has been properly adjusted, reinstall the lower
needle case cover.
Needle Case Removal
It may become necessary to remove the needle case from the front of the head to
replace the needle bar driver, take up lever gear, needle bar reciprocator, or other
associated parts. Refer to the following steps to remove the needle case from
embroidery head.
Head #1
1. Turn ON the EMT 10/4T and bring the head to the HEAD UP position.
2. Turn OFF the EMT 10/4T and disconnect the power cord from its power source.
3. Remove the thread tensioner bracket assembly as described in a previous
procedure.
4. Position the needle case to mid-point (needle 5 or 6), then secure the bearing
retainer plate assembly from sliding left or right by placing any workable
clamping devise onto each end of the V-rail.
5. Remove the 2 screws holding the upper needle case cover plate (see Figure 3-27)
and set the cover plate aside.
Caution! You must remove the needle position photo sensor
interrupter blade to avoid damage to the LEDs on the color change
PCB.
6. Remove one and loosen the other of the 2 screws that hold the photo sensor
interrupter blade to the top of the needle case. Carefully slide the blade out
from between the LEDs under the color change PCB.
Head #1 3 - 29
110279-01, Rev B 3. Embroidery Head Maintenance