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-
-1-
Instruction M
anual
For generic HA
-1 15 class
Sewing M
achines
-
-2-
Your
HA
-1 S
ewin
g M
achi
ne
This
is a
gen
eric
inst
ruct
ion
man
ual f
or s
traig
ht s
titch
se
win
g m
achi
nes
that
are
com
mon
ly k
now
n as
HA
-1s.
The
HA
-1 m
achi
ne is
mec
hani
cally
a c
lone
of t
he v
ery
old
Sing
er 1
5 cl
ass,
such
as
the
15-3
0 or
15-
87. M
any
late
r 15
clas
s Si
nger
s, su
ch a
s th
e 15
-91,
use
d a
diff
er-
ent s
huttl
e/bo
bbin
cas
e ar
rang
emen
t whi
ch w
as m
ostly
re
vers
ed f
rom
this
sty
le. H
owev
er, t
his
early
sty
le b
e-ca
me
so p
reva
lent
that
Sin
ger e
vent
ually
sw
itche
d ba
ck
to th
e ea
rlier
arr
ange
men
t. H
A-1
mac
hine
s ha
ve b
een
sold
with
hun
dred
s of
dif-
fere
nt n
amep
late
s, bu
t ar
e al
l es
sent
ially
the
sam
e.
Mos
t of
the
HA
-1 m
achi
nes
have
bee
n bu
ilt in
the
far
east
ern
coun
tries
sin
ce t
he e
nd o
f W
W2.
The
re h
ave
been
num
erou
s m
odifi
catio
ns,
but
the
basi
c m
achi
ne
has
rem
aine
d so
sim
ilar
that
this
inst
ruct
ion
book
will
co
ver t
he im
porta
nt p
oint
s for
man
y m
achi
nes.
The
bobb
ins
are
the
com
mon
15
clas
s, an
d th
e ne
edle
s ar
e kn
own
as 1
5X1
(US)
, 705
(H
or
B, E
urop
ean)
, or
HA
X1
(Jap
anes
e or
oth
er f
ar e
aste
rn),
follo
wed
by
the
# th
at d
esig
nate
s th
e si
ze. A
US
size
16
= a
Euro
pean
si
ze 1
00, s
ize
14 =
size
90,
size
12
= si
ze 8
0. T
he E
uro-
pean
# t
ells
the
act
ual
size
of
the
need
le, s
uch
as t
he
100
is 1
mm
in d
ia.,
the
80 is
.8m
m in
dia
., et
c.
Prep
ared
by:
B
ill H
olm
an
Mad
ison
, WI
-
-3-
TO R
EPLAC
E THE N
EEDLE
To replace the needle, raise the needle bar to its highest point
by turning
the hand
wheel
(Fig. 3)
TOW
AR
D
YO
U
by hand.
Loosen the
needle clamp screw
(A) on the
right hand side, and the needle clam
p will open, allow
ing the old needle to slip out. R
emove the old needle and
slide the
new
needle up,
(FLA
T
SIDE
T
O
TH
E R
IGH
T) as far as it will go.
When the needle hits the stop,
it is
positioned correctly.
Tighten the
needle clam
p screw
securely. For best re-sults change needle frequently.
Note: U
se only 15X
1, 705, or HA
X1
class needles.
NEED
LES AN
D TH
REA
D
Never use a bent needle, nor one w
ith a blunt point, since this causes im
perfect stitches and may cause the needle to break.
Unless the needle is in all the w
ay, flat side to the right, the ma-
chine will not function correctly, and you w
ill not get good results. The size of the needle should conform
to the size of the thread, and both should be suitable for the m
aterial being sewn. In m
ost applications, use the sam
e thread top and bottom, and alw
ays use good quality thread and needles.
-
-4-
THE
BO
BB
IN C
ASE
Im
port
ant
In
the
follo
w-
ing
oper
a-tio
ns, t
he n
ee-
dle
mus
t al-
way
s be
abov
e th
e su
r-fa
ce o
f the
m
achi
ne. I
n ra
isin
g th
e ne
edle
, al-
way
s tur
n th
e ha
nd w
heel
to
war
d yo
u.
REM
OV
ING
TH
E B
OB
BIN
CA
SE
INSE
RTIN
G T
HE
BO
BB
IN C
ASE
Slid
e or
lift
the
acce
ss p
late
. (Fi
g. 4
) With
left
thum
b an
d fo
refin
-ge
r, op
en th
e hi
nged
latc
h (A
-Fig
. 2) o
n th
e bo
bbin
cas
e, a
nd h
old
secu
rely
as
you
with
draw
it
from
the
pos
t. (D
-Fig
. 2)
*Not
e th
e po
sitio
n of
you
r fin
gers
on
the
latc
h, b
ecau
se it
is im
porta
nt to
grip
it
the
sam
e w
ay w
hen
rein
serti
ng it
into
the
mac
hine
.
Afte
r ins
talli
ng th
e bo
bbin
in th
e ca
se, g
rip th
e la
tch
with
you
r fin
-ge
rs in
the
sam
e po
sitio
n* a
s w
hen
you
rem
oved
it. (
Not
e: If
you
gr
ip it
with
you
r fin
gers
poi
nted
dire
ctly
tow
ard
the
case
, it w
ill b
e di
fficu
lt to
inst
all i
t in
the
mac
hine
.) G
uide
the
bobb
in c
ase
back
on
to th
e po
st w
ith th
e fin
ger
(B-F
ig. 2
) in
to th
e no
tch
(C-F
ig. 2
). Th
is s
houl
d be
an
easy
ope
ratio
n re
quiri
ng n
o fo
rce.
Whe
n yo
u re
leas
e th
e la
tch,
it w
ill s
nap
onto
the
groo
ve o
n th
e po
st, a
nd th
e th
ree
or f
our
inch
es o
f th
read
han
ging
fre
e fro
m th
e bo
bbin
cas
e w
ill b
e br
ough
t up
thro
ugh
the
need
le p
late
as s
how
n on
pag
e 8.
-
-5-
WIN
DIN
G TH
E BO
BB
IN
Note: This m
achine uses standard 15 class bobbins. The bobbin can also be w
ound while the m
achine is in operation by not releasing the stop m
otion knob as described be-low
, in which case, m
achine and bobbin w
inder will operate at the
same tim
e.
While holding the hand w
heel with the left hand, turn the stop m
o-tion knob tow
ard you. This will perm
it the hand wheel to turn
freely while the needle bar rem
ains still. Place a spool of thread on spool pin (A
). Pass the thread through the tension disk (B) at right
corner of the base of the machine. A
ttach the thread to an empty
bobbin by winding it around num
erous times or inserting it inside
out through one of the holes. Place the bobbin on spindle (C).
Push the bobbin winder (D
) down until the snaps against the hand
wheel, and finger (E) drops betw
een the sides of the bobbin. Oper-
ate the motor until the bobbin is full or the finger (E) snaps up and
disengages the bobbin winder. D
o not over fill the bobbin. Cut the
thread, and tighten the stop motion screw
while holding the hand
wheel. Y
our bobbin is now ready to be inserted in the bobbin case
(pg. 6) and installed in the machine (pg. 4).
-
-6-
TO T
HR
EAD
TH
E B
OB
BIN
CA
SE
Hol
d th
e bo
bbin
cas
e be
twee
n th
e le
ft th
umb
and
fore
finge
r w
ith t
he s
lot
up.
With
4 o
r 5
inch
es o
f th
read
tra
iling
in
the
dire
ctio
n sh
own
...
inse
rt th
e bo
bbin
into
the
bob-
bin
case
and
pul
l th
e tra
iling
th
read
bac
k in
to t
he s
lot,
dow
n an
d to
the
left,
unt
il it
snap
s in
to
the
del
iver
y ey
e u
nder
the
ten-
sion
spr
ing.
W
hen
you
pull
on
the
thre
ad, l
ooki
ng a
t the
bob
bin
in t
he o
pen
side
of
the
bobb
in
case
, th
e bo
bbin
sho
uld
rota
te
cloc
kwis
e.
Ther
e sh
ould
be
a
slig
ht b
ut
cons
iste
nt t
ensi
on (
drag
) on
the
th
read
as
it is
pul
led
thro
ugh
the
del
iver
y ey
e.
The
tens
ion
can
be in
crea
sed
by tu
rnin
g th
e te
n-si
on s
crew
clo
ckw
ise
decr
ease
d by
turn
ing
it co
unte
r-clo
ckw
ise.
-
-7-
UPPER
THR
EAD
ING
1 Place a spool of thread on spool pin (A).
2 Bring the thread from
the back of the spool, (so that the notch in the spool is up) and lead it through thread guide (B
). 3- R
un the thread down, betw
een, and under the tension disks (C)
from back to front.
4 Bring the thread over the guide bar (D
) and through the check spring (E).
5- With the take up lever (F) in its upperm
ost position, bring the thread through it from
back to front. 6 R
un the thread through guides (G) &
(H).
7 Thread the needle from left to right, draw
ing it through about 4-5 inches.
-
-8-
TO P
REP
AR
E FO
R S
EWIN
G
Thre
ad m
achi
ne a
s per
pag
es 6
& 7
. Pi
ck u
p th
e bo
bbin
thre
ad b
y ho
ldin
g th
e lo
ose
end
of th
e ne
edle
th
read
with
you
r le
ft ha
nd w
hile
tur
ning
the
han
d w
heel
tow
ard
you
until
the
need
le m
oves
dow
n an
d up
and
the
thre
ad ta
ke u
p le
ver h
as re
ache
d its
hig
hest
pos
ition
. Pu
ll ge
ntly
on
the
need
le th
read
whe
re it
is lo
oped
dow
n th
roug
h th
e ne
edle
pla
te, a
nd th
e bo
bbin
thre
ad w
ill c
ome
up th
roug
h th
e ne
edle
hol
e. (I
f the
bob
bin
thre
ad d
oes
not c
ome
up, r
eche
ck y
our
thre
adin
g, a
nd b
e su
re t
hat
ther
e is
4-5
inc
hes
of t
hrea
d tra
iling
fro
m th
e bo
bbin
cas
e.)
Fina
lly,
plac
e bo
th t
hrea
d en
ds t
owar
d th
e re
ar o
f th
e m
achi
ne,
with
the
nee
dle
thre
ad g
oing
bet
wee
n th
e tw
o pr
esse
r fo
ot t
oes
(A).
-
-9-
TO STA
RT SEWIN
G
TO R
EMO
VE TH
E WO
RK
With the needle raised and the threads draw
n back at least 4 inches through the toes of the presser foot, place the m
aterial to be sew
n beneath the presser foot and lower the presser
foot lift lever. Turn the hand wheel tow
ard you until the nee-dle enters the m
aterial. Regulate the desired stitch length
(Fig. 12) and start sewing.
Do not try to help the feeding of the m
aterial by pulling by hand, as this m
ay bend or break the needle. Gently guide the
material as it feeds in the direction you w
ant to sew.
Stop the machine by releasing the pressure on the foot or
knee control and stopping the hand wheel w
ith your right hand. If you are stopping to turn a corner, stop w
ith the nee-dle just entering the m
aterial. If you are going to remove the
material, stop w
ith the needle and take up lever at their high-est positions. Then, raise the presser foot lift lever, draw
the m
aterial to the back about 6-8 inches, and cut the thread.
-
-10-
Fabr
ic S
elec
tor:
The
hei
ght o
f th
e fe
ed d
og m
ay b
e re
gula
ted
acco
rdin
g to
the
thi
ckne
ss o
r ot
her
char
acte
ristic
s of
the
ma-
teria
l be
ing
sew
n, b
y pr
oper
se
tting
of t
he d
rop
feed
kno
b.
1 W
hen
sew
ing
norm
al to
thic
k m
ater
ials
, tur
n th
e kn
ob to
th
e N
OR
M
posi
tion.
2
Whe
n se
win
g th
in m
ater
ials
, suc
h as
silk
, whi
ch re
quire
a
gent
ler f
eedi
ng m
otio
n, tu
rn th
e kn
ob to
SI
LK.
3
Whe
n a
situ
atio
n ar
ises
whe
n yo
u w
ant t
o m
ove
the
ma-
teria
l by
han
d, s
uch
as i
n da
rnin
g or
em
broi
dery
, tu
rn t
he
knob
to th
e D
AR
N
or
EMB
R
posi
tion.
OTH
ER F
EATU
RES
PRES
SUR
E C
ON
TRO
L Th
e pr
essu
re c
ontro
l (Fi
g. 4
, pg.
5)
cont
rols
the
amou
nt o
f pr
essu
re th
at th
e pr
esse
r foo
t app
lies
to th
e m
ater
ial.
Diff
er-
ent H
A-1
s us
e tw
o ve
rsio
ns o
f the
pre
ssur
e co
ntro
l, bu
t you
ca
n re
gula
te it
by
scre
win
g it
up a
nd d
own
or u
sing
the
snap
re
leas
e, t
o fin
d th
e pr
essu
re t
hat
prov
ides
the
bes
t fe
edin
g ac
tion.
PRES
SER
FEE
T &
ATT
AC
HM
ENTS
Y
our H
A-1
is e
quip
ped
with
a st
anda
rd lo
w sh
ank
mou
ntin
g sy
stem
. With
this
arr
ange
men
t, it
is e
asy
to fi
nd a
lmos
t any
ty
pe o
f pre
sser
foot
or a
ttach
men
t for
you
r sew
ing
need
s.
Fig.
11
-
-11-
STITCH
LENG
TH R
EGU
LATION
Regulating the length of the stitch: The m
achine can be adjusted to from
six to thirty stitches per inch, as in-dicated by the num
bers on the stitch indicator plate. C
hanging the length of the stitch is accomplished as
follows:
Loosen the stitch length stop control (B, Fig. 12) and
move it to the bottom
of the slot. Move the stitch
length lever (A, Fig. 12) to the desired stitch length.
Now
, move the stop control up until the control plate
(visible in the stitch length slot) touches the bottom of
the stitch length lever. Tighten the thumb screw
(B)
with finger pressure only. A
t this point, the stitch length is m
arked, and you can move the lever up to
sew in reverse at approxim
ately the same stitch length,
and then return it to your desired forward length.
-
-12-
Not
e: M
ost m
inor
impe
rfec
-tio
ns in
the
stitc
h ca
n be
cor
-re
cted
by
adju
stin
g th
e ne
e-dl
e te
nsio
n on
ly.
To i
ncre
ase
the
uppe
r te
n-si
on,
turn
the
ten
sion
kno
b cl
ockw
ise.
To
de
crea
se
it,
turn
cou
nter
cloc
kwis
e. A
ll ad
just
men
ts s
houl
d be
mad
e gr
adua
lly,
no m
ore
than
one
num
ber a
t a ti
me.
Whe
n th
e pr
esse
r foo
t is i
n th
e ra
ised
pos
ition
, the
upp
er te
nsio
n is
rele
ased
, so
if yo
u pu
ll on
the
thre
ad to
feel
the
amou
nt o
f ten
sion
, the
foot
mus
t be
dow
n.
If it
beco
mes
nec
essa
ry t
o ad
just
the
bob
bin
tens
ion,
thi
s is
ex-
plai
ned
on p
g. 6
, Fig
. 7.
TEN
SIO
NS
For
idea
l st
itchi
ng,
the
ten-
sion
on
the
uppe
r an
d lo
wer
th
read
s sh
ould
be
equa
l, an
d ju
st
suffi
cien
tly
stro
ng
to
lock
bot
h th
read
s in
the
cen-
ter o
f the
wor
k. (F
ig. 1
3)
If th
e up
per
tens
ion
is t
oo
tight
or
the
low
er t
oo l
oose
, th
e ne
edle
th
read
w
ill
lay
stra
ight
on
the
uppe
r sur
face
. (F
ig. 1
4)
If th
e lo
wer
ten
sion
is
too
tight
or
the
uppe
r to
o lo
ose,
th
e bo
bbin
thr
ead
will
lay
st
raig
ht o
n th
e un
ders
ide
of
the
mat
eria
l. (F
ig. 1
5)
-
-13-
OILIN
G TH
E MA
CH
INE
Fig. 17
Your H
A-1 sew
ing machine never needs grease. A
ll moving parts
which com
e in contact with others m
ust be covered with a thin
film of oil, and should not be allow
ed to become dry. O
il, when
necessary, should be applied at the points indicated by the arrows
in Fig. 17, a single drop of oil is usually sufficient if applied in the right place. O
il all spots of contact on the underside of the ma-
chine. These spots can be identified by rotating the hand wheel
and watching w
here parts move against one another. The shuttle
race should be kept oiled, and frequently, it is wise to snap open
the clamps that hold the shuttle retainer, and rem
ove the shuttle to clean the race and apply oil. O
nce the machine has been oiled, it is
wise to run it to distribute the oil, and sew
some stitches on a test
cloth until oil no longer appears on the thread. N
ote: Use sew
ing machine oil only. M
ulti purpose oils w
ill often dry leaving a sticky residue behind.
-
-14-
SEW
ING
HIN
TS
See
that
the
pres
ser
foot
scr
ew is
secu
rely
tigh
tene
d. I
t is
dang
erou
s fo
r the
foot
to v
ibra
te lo
ose
whi
le y
ou a
re o
pera
t-in
g th
e m
achi
ne.
Skip
ped
stitc
hes
may
be
caus
ed b
y a
bent
or b
lunt
nee
dle,
by
inco
rrec
t pos
ition
ing
of th
e ne
edle
, the
wro
ng si
ze o
f nee
-dl
e, o
r by
thre
ad th
at is
too
heav
y fo
r the
sele
cted
nee
dle.
B
reak
ing
need
les
are
usua
lly c
ause
d by
the
oper
ator
pul
ling
on th
e fa
bric
in a
n ef
fort
to h
elp
the
mac
hine
feed
. Thi
s ac
-tio
n w
ill p
ull
the
need
le o
ut o
f lin
e an
d it
will
stri
ke t
he
pres
ser f
oot o
r nee
dle
plat
e.
Bre
akin
g th
e up
per
thre
ad m
ay b
e ca
used
by:
1
Inco
rrec
t thr
eadi
ng
2 N
ot b
ringi
ng u
p th
e bo
bbin
thre
ad c
orre
ctly
3
Upp
er te
nsio
n to
o tig
ht
4 B
ad n
eedl
e, o
r cla
mpe
d in
corr
ectly
5
Nee
dle
rubb
ing
agai
nst a
ttach
men
ts o
r pre
sser
foot
6
Nee
dle
eye
too
smal
l for
thre
ad
7 S
tarti
ng th
e m
achi
ne a
t ful
l spe
ed
8 S
tarti
ng m
achi
ne w
ithou
t tak
e up
leve
r at h
ighe
st p
oint
B
reak
ing
the
low
er th
read
may
be
caus
ed b
y:
1 In
corr
ect t
hrea
ding
of b
obbi
n ca
se
2 T
oo ti
ght a
tens
ion
3 B
obbi
n w
ound
too
full
to re
volv
e fre
ely
4 N
ot b
ringi
ng u
p bo
bbin
thre
ad c
orre
ctly
5
Hol
e in
the
need
le p
late
dam
aged
by
need
le st
rikes
U
neve
n st
itche
s may
be
caus
ed b
y:
1 P
ress
er fo
ot n
ot re
stin
g ev
enly
on
mat
eria
l 2
Fee
d do
gs n
ot h
igh
enou
gh
3 T
oo sh
ort a
stitc
h 4
Pul
ling
the
clot
h 5
Inco
rrec
t nee
dle
for t
he th
read
, or p
oor q
ualit
y th
read
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