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Thread / Needles & Awls
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• The UNION can use thread size 138 to 554 synthetic or 3 to 12 cord cotton or linen
• Use only Left Twist thread in the machine (twist of the bobbin thread is not important). To determine
the thread twist, hold the thread and twist it counterclockwise between the thumb and forefinger. If the
strands wind tighter, the thread is left (Z) twist. If the strands unwind, the thread is right (S) twist.
• If you are using a natural thread, wither linen or cotton, the label end of the spool of the thread must
be pointed up when placed in the thread holder. The bobbin thread should be one size smaller than
the top thread for a better lock. Make sure that the thread is not old, dry, or right twist.
• If you use a larger thread with an undersized needle, skipped stitches or frayed thread may occur.
NeedLeS & AwLS
orders for needles and awls must specify the
quantity required, the size number, and also class
and variety. The following is an example of an
order with sufficient information: "100 UNION #2
Awls, chisel point"
Needles
• NOTE: The needle size is determined by the
size of the thread you sewing with.
• Needle Sizes: 1, 1 ½, 2, 2 ½, 3, 3 ½, & 4.
Awls
• Awl Sizes: 2, 2 ½, 3, 3 ½, 4, & 5
• Chisel Point Awl – harness or straight work.
• Oval Point Awl – boot siding, vamp closing &
belts.
• NOTE: The awl size should be 1 to 1-1/2 sizes
larger than the size of the needle. Make sure
that the awl is sharp and does not spring or
glance off the work when entering the work.
S
A
eTTINg The
1. Turn the hand wheel so that awl bar (Ul-85)
is at its highest position. loosen the awl set
screw and remove the old awl
2. Insert the awl into the awl bar as far as it will
go. Set point in desired position. It is common
to have the point set a little to the right of
being squared across
3. Tighten set screw in awl bar
4
technical Support
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Sizes will vary between applications.
Synthetic
Twisted
138
207
277
346
415
554
693
Appearance of Chisel Point Awl: Turning the
awl so the edge of the blade will start its cut in a
different position can change the appearance of
the stitch.
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he
1) Make sure that the needle is put into the nee-
dle bar (Ul-210) as deeply as possible, then
tighten the needle bar screws in place.
2) Insure that the hook of the needle is looking
directly at the operator.
1-800-327-9420
UnIOn
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Natural
Needle Size
Cord
3 cord
1 to 1-1/2
4 cord
1-1/2 to 2
5 cord
2-1/2 to 3
6 cord
3 to 3-1/2
7 cord
4 to 4-1/2
8 cord
4-1/2
9 cord
5
Awl parallel to Stitch line
Awl Angled left
Awl Angled right
Awl perpendicular to Stitch line
N
eedLe
Since 1858
-S
t I tc h
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