Premier MCO-4992 Manual De Instrucciones página 22

1. Turn "OFF" the power and rotate the hand wheel (24).
2. Lift the needle bar(12) and sewing needle (16) to the height shown in the Fig after the hand wheel
(24) rotated, and then stop rotating hand wheel (24) to keep it in static.
3. Screw counterclockwise to screw off thimble screw(13).
4. Take out the sewing needle (16) to be replaced
5. Pass the sewing needle (16) through the thread guiding spring 2 (14) by right bottom-up approach
and insert needle bar(12) to its bottom. Then screw clockwise to screw on thimble screw.
6. Make sure install the sewing needle in place until it can't insert into any more. Normal sewing needle
(16) installation must insert 7.5mm into the end of needle bar(12) (shown in Fig), otherwise, it will
cause firing-pin, thread hook, or skipped stitches.
Attention Pay attention to the following points during sewing needle installation
1. Make sure the perfect quality of the sewing needle. The sewing needles
shown in the right Fig will cause problems:
A: curved needle
B: blunt needles
C: needle with damaged pinpoint
2.Flat part of the sewing needing shall be installed
backward, shown in the right Fig
Threading
1.Insert the Spool Pin (22) onto the groove (23) on the back of the machine,
Put the bobbin on the Spool Pin (22), shown in Fig1.
2. Pass the thread of the bobbin through the hole of winding slice (21) from back to front, shown in Fig2.
3. Pull the thread to thread guide 1(6), shown in Fig 3
4.Put the thread into thread clamp (9) after passing through the thread guide 1(6), shown in Fig 4.
(1)
P-5