Needle; Removing/ Installing The Needle - Brother ST4031HD Operation Manual

Needle

This machine uses a standard home sewing
machine needle.
The recommended needle is 130/705H (#80 or
#90).
Needle description
1 Back (flat side) 2 Front
1
How to check the needle
4 Flat surface
5 Place the needle on its flat side and check to see if the
space is parallel.
NOTE:
Countermeasures for material breakage <A>.
It can reduce the occurrence of material breakage
by using 130/705H SUK (#90) BALL POINT.

Removing/ Installing the needle

<A> Removing/ installing the left needle
<B> Removing/ installing the right needle
<A>
1
2
1 Tighten 2 Loosen
3 Groove
2
3
5
4
<A>
<B>
1
2
To remove:
1. Turn the main power and light switch to the OFF
position.
2. Turn the hand wheel so that the mark on
the hand wheel is aligned to the line on the
machine. (See CHAPTER 1 "Turning direction
of hand wheel".)
3. Loosen the corresponding needle set screw
with turning the included hexagonal driver
toward 2 in the figure, and remove the needle.
To install:
1. Turn the main power and light switch to the OFF
position.
2. Turn the hand wheel so that the line on the
hand wheel is aligned to the line on the
machine.
3. Hold the needle with its flat side away from you
and insert it up as far as it will go.
4. Tighten the needle set screw securely with
turning the included hexagonal driver toward
1 in the figure.
NOTE:
Make sure to insert the needles all the way.
If the needles have been inserted correctly, the
right needle should be set slightly lower than the
left one.
CAUTION
Always be sure to turn off the power before
removing/ inserting the needle.
Do not drop the needle and needle set screw in
the machine, otherwise it may be damaged.
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