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TENSION
RELEASE
R
CHECK:
When worlc clomp
is
raised,
the
first upward move·
mcnl of
the lilting bar,
F
ig.
21,
s
hou ld
separate
the
tcnsior' l
discs
a nd
rclooso
t
ension
on
need le thread.
SETT ING:
To
adjust
the
ten
s
ion re
lease, fi
rs
t loosen
the
set screw in
costing
below
tension
regulator,
Fig. 21,
ond move
entire
regulator all the way
in.
Tighten
tot screw.
Then
loosen
the screw
in lift ing
link
coi'Vlection
ond
set
lifti
ng
link
so
thot
it
projcch
approximately
1/32
inch as shown
.
Tighte
n screw.
Nex
t,
loosen
the pi
nch
screw in lifting
<rrm (seo
in
set)
a
nd
push
up on
l
ihing
bar unti
l
tension
discs
just begin
to release.
Mai
ntain
th
is posit
ion wh
ile
tightening pinch
screw.
MAKE
CERTAIN
lhot lilting
Ctm
is
against shoulder on rock shah.
WORK
CLAMP FOOT LIFTER
SETTING:
Loosen lifting bar
clomp screw, Fig. 2 1, and
pos
il
ion
foot
l
ifter
approxima
tely
118
inch
below
crrn hcuk as
shown
in
Fig
.
22. Then
tighten
clonlp
screw.
THREAD
WIPE
R
SETTING:
Loosen
Niper
support
screw, Fig. 22
Jnd posi·
t1on
wiper
support so that
slot
tn
body finger
i5
horiJon
tal.
Tighten Niper support
screw.
Position
wiper
wiro to clear
needle
bv
oppro.x-
motely
1/16
inch
.
THREAD P ULL·OFF
LOOP
OiECK:
The
pull·ofl loop
should
drow
sufficient
thread
from tn.e un.vinder to
complete
the
st1tc:1
pattern.
Also,
pull·ofl
loop should
not
"whip" and moy
be
con trol led
by
increc.sing
or
decreasing tension
on
spr
ing.
SETTING:
Loosen the
four
brocket
set
screws
shown in
Fig. 23 end
pos
ition
the
pull·oll loop os
close cs
possible
to
machine
arm
without
touching.
Tighten
brac:lcct set
screws.
Then
loo~en
collar set screw
and move
collar
to
incrcoso or decrease tension
as
required. Tighten
collar
se
t
screw.
13
_
,,_
"
1/32
INCH
LIFTING
BAR
Fig.
21.
Adiusting
the
T
ension
Re-lco~cr
WORK CLAMP
FOOT LIFTEZ..&I
SCREW
1l
l
..J
1/
8 INC
H
____ _L
__
~----T--
FOOT LIFTER
1/16 1NCH::y:---··
WIPER WIRE
Fig.
22.
Adjuoting th• Foot Lifte
r
-~
0
,J
.:,
r
• •
•
•
$
I
F ig.
23. Setting tho Pull.off Loop
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