varying measurement
settings described above
given in the first paragraph.
Lock
countenuts
Note: When the connecting rod is moved
obtain
distance 0 (fig.
eccentric N is centered
rod
head
0.
be
necessary, bend lubrication
centre
of lubrication hole 0
is
not
or
shortened
Should
is
1.2 mm
(3/64")
the
case,
the
by
adjusting screw S (fig. 7)
D.
must
be modified except those
A and C (fig, 7) .
7)
care must be taken
in
relation
an
excessive change
tube
of
the
above
looper stroke must be
If this
is
to
the
P so
that
connecting rod.
its
stroke
the
upper tangent of
done
all
in
order
connecting
in
distance D
it
is
in
to
the left, when it
the
to
that
the
the
is
exactly
outer
needle eye (fig. 5).
in
fig . 6
the
E B
lefthand
tangent
of
the
Setting
of
5.
6.
front needle guard
Set
needle guard Q
In
its stroke
that
the
needle comes close
IMlen
the
looper
of
the
needle guard
To
obtain this condition, slide
Setting
the
feed dogs (fig. 8)
Set
the
feed dogs on
Set
the
differenti
Set
the
main feed dog D
Place
the
whole assembly
to
the
on
looper (fig. 3)
on
looper Z by means of screws
left,
the
needle guard must
to
the
point
point
passes
the
centreline
0.
the
needle guard
the
feed dog holders.
al
front feed dog A
without
on
on
tightening it completely
feed dog holding arm and align feed dog D with feed dog A.
R.
touch
the righthand needle and deflect
of
the
looper.
of
the
lefthand needle,
to
the left or right.
feed dog holder slide B and tighten screw C.
on
the
latter must
feed dog holder E with 2 screws
start
the
lefthand needle
losing
the
H.
so
deflection
Cuntrlnu tim lund dous (liu. 8):
Loo:;un
both
:;~:mws
G.
Plm:u
tim throut plulll
tmtiru dilltmmtial
Lock scn:ws
Ali!JII
Rmnovu thu throat plait:. Rmnovt: lt:cd
G.
t:x:u:tly maiu h:t'tl
!JI'tlllfl
i11 it::
F.
clo!J
H.
positinu
D.
aucl
t:tmtrc Iced
do!J
holder E nnd tighten
do!J
A sidew.1ys
in
the throat plate slots by moving thu
lr:Prl
dog D tightly on holder E with screws
0
A
fig. 8
Rc(Jiacc
the
thr
oat
move
in
the
throat
W and Z and move segment T backwards
screws
If
the
feed dogs should touch
Rotate group F and centre the feed dogs
Slightly lock screw P.
Setting
the
differential (fig. 8):
Loosen screw V and
Slide arm L in
Counter
Tighten screw V
Setting
the
Adjust
plate;
Tighten
Setting the stitch length:
To adjust
clockwise
Ensure
Tighten
7. Mounting and positioning
Mount presserfoot D on its
needles are centred in
Secure
Wlen
(3/16")
the
opening
bar B the required amount.
Secure
If this regulation
tension assembly directly.
Adjust limitation
the
slot
set
and hold
height
the
the
that
the
the
the
barB
and
teeth
of
teeth should protrude 1.2
the
fixing screws.
the
stitch length
to
shorten
the
feed dogs,
nut
R and screws C and
presserfoot with screw
presserfoot
tension discs should be open. To adjust
of
the
with screw A.
is
not
collar E and tighten both screw
F.
fig.
BA
plate and, turning the machine pulley in
plate slots. Should the feed dogs touch or have too much space between them, loosen
or
forwards.
the
bottom
of
the
throat
in
the
throat
counternut
of sector T until the right position
in
counternut
the
the
N.
position adjusting screw
M.
N
feed dogs so
nut
stitch and anticlockwise to lengthen it
in
that
when they are right up, their lower edge is level with the
mm
(3/64").
R (fig.
8)
should be loosened and
their maximum stroke,
do
the
direction of operation, make
plate slots, loosen screws P
plate slots.
is
obtained.
screwS
of
the stitch lengthener
loosen
nut
ends of
the
not
touch
to
the
on
collar
R, should
throat
the
0.
rotate
rightwards.
plate slots.
feed dogs
throat
rotated-
0.
the
presserfoot (fi
bar, ensuring
the
presserfoot slots.
g.
9):
that
the
C.
!s
raised
about
4.5 mm.
discs ldosen screw A and move
enough, one most work
the
fig. 9
17
8. Adjusting the lower looper thread take-
10):
Ensure that the cam
thread holder
To
centre the cam, slightly loosen screws G and H
and slide it along the main shaft .
When the looper starts its stroke from left to right,
the cam must start pulling the thread.
Secure the cam with screws G and H.
Thread the machine without the top covering
thread; make sewing tests controlling the stitch
length and the exact position
Land
is
perfectly centred with
bar A.
of
the cam.
9. Covering stitch (top spreader):
Adjusting the rear thread take-up (fig.
The
rear thread guide A of the coveri
be right up .
Thread take-up
stretch the thread for abaout
Should the take-up be further
screw E and set take-up B. Should the regulation
not
be sufficient, loosen screw C and rotate group
B,
in
its maximum stroke, must
11
4 mm. (5/32").
out
or back, loosen
D.
Adjusting the cam and
Set
cam A so
down,
the needle clamp does
Insert looper B
the
looper
The
point of looper B must,
left,
pass 0.2
thread
and must be
without
touching it.
Mount
thread guide D
needle clamp holder.
The
leg
of the thread guide must
from
collar
When the needle bar comes down, the thread guide
must
be about
top
spreader (fig. 12):
that
when the needle bar
not
in
looper holder C and ensure
is
set all the way up.
in
to
0.3
mm
from the outside needle
as
case as possible to cam A
on
collar E holding the
E.
1.S
mm (1/16") away from cam A.
touch the cam.
its stroke to the
up
cam (fig.
):
ng
stitch must
not
protrude
is
right
that
A
GH
fig. 10
fig.
II
c
fig. 12
Set
the olooper height so that when
passes behind the right needle.
SPECIAL INSTRUCTIONS
The
upper looper should start pulling the thread under the cam when the point
following positions:
For
two needle machines with 3.5 mm (9/64") needle track upwards: between
For
two needle machines with 3.5
For
three needle machines with 5 mm
For
three needle machines with needle
needle.
Note:
The
front thread pulled by the upper looper must, under no circumstances, pass behind the
lch
hand
needle, nor behind the centre one (when there are 3 needles), because this would cause skipstitching.
In
the
needle bar
mm
(9/64") needle track: in
(3/
6") needle track or under :
tra~k
over 5 mm (3/16"): 0.3 mm (1/64") to the right
is
at
i~s
highest point,
the
centreline
the
the
of
in
the centreline
thread pulled by
of
the lower looper
needles.
the centre needle.
of
the
the
is
centre nee
of
the
extreme
looper
in
the
dle
cent
re
.
Threading 2 needles
19
,
I
I
,
I
Threading 3 needles with 1 looper
lO
..
....
Threading 3 needles with 21oopers
'
.--"~
"
I \
. '
i.
"lt
Iff\:
'
, . .,.
21
b) Changing the needle:
1.
Turn
off the motor.
2. Depress the
Take
3.
4.
loosen
5. Remove the needle.
6. Insert the new needle.
7.
The
8. Using the tweezers
9.
Tighten the needle holding screw taking care
Do
10.
motor
pedal to ensure
the needle to its highest point.
the needle holding screw by
needle scarf for the passage of the looper must be towards
not
exert too much pressure when tightening
supplied, ensure
that
the machine
1/2
a turn with screwdriver 990182·0·10 .
that
the needle rests against
not
is
completely stopped.
to move
the
the
screw.
the
rear of the machine.
the
bottom
needle.
of
the hole.
c) Adjusting
1.
Check
2.
The
3.
To
increase or lessen
d) Adjusting the tensions:
Tighten
1.
lower looper
the
presserfoot pressure:
the correct setting
needles must pass through che centre
othe
the tensions sufficiently to give a regular stitch formation.
is
left entirely loose, and only
of
the
pressure
presserfoot.
of
the
slots
in
the
presserfoot.
of
the presserfoot, turn knob D (fig. 2).
the
small tension,
In
on
the
take-up cam plate,
most cases,
the
thread tension for
is
tightened as requi
the
red
.
e)
1.
loosen
2.
Rotate
it.
Retighten
3.
Variation
of
stitch length (fig. 8):
nut
R using the proper spanner.
screw S
of
the stitch lengthener; rotating it clockwise
nut
R.
to
shorten
the
stitch and anticlockwise
to
lengthen
f)
lrruuularitios
due
to
improper handlinu
of
machine
N.
1
2
3
4
IRr!EGULARITY
Jrrenulnr stitc:h
Feed and Iabrie slipping Insufficient prusscrfoot pressure
sideways
Skipstitching Lower
Thread break age Tensions
Tensions hadly adjusted
Thrc;ul
takc·ups haclly adjusted
Incorrect threading
not
Yarns
Feed dogs badly adjusted in height and slant
Differential
Front
Needle badly positioned
Lower
Yarn irregularly
gauged
hadly adjusted
or
upper looper badly adjusted in respect
needle guard
looper take-up cam badly adjusted
too
taut
too
wound
PROBABLE CAUSES
far away
on
cone
from
needles
to
needle
Needle breakage
5
Puncturing
6
of
fabric
Oil leakage
7
8
Lack of I ubrication Oil level
Needle
bent
Needle badly mounted
Blunt needle
Needle gauge
Needle with unsuitable
- Screws joining base and
- Oil recovery gasket in oil pump,
- Side cover
V-
belt
-
Lubrication
not
on
machine arm
too
low
incorrectly
pump
suitable for
point
pump
not
mounted
filter clogged
throat
bot
not
tight
plate
tight
centred
enough
23
a)
Every day
1. Clean the feed
2. Check the
oil
Ill. MAINTENANCE
and stitch formation clements briefly
level
b) Every
1. Dismount the throat plate and clean the feed dogs, loopers and feed elements.
2. Check the oil
c) Every three months
1.
Using the correct spanner remove the plug and drain
2. Unscrew pin
3. Remove the filter and clean it
4. With compressed air, blow the filter and replace it on the drain plug with pin 302357-0-10.
5. Soak the felt pad
6. Replace the plug.
Re-fill the machine with a quart (580 gr.) of Esso Standard Teressa Oil 43 (VR.604).
7.
In
oil can drain from the side holes of the plug itself (fi
weel<
level
and
if
necessary add oil
302357-0·10 fixed
in
clean oil.
operation 1 of paragraph
to
the inside
in
petrol.
C,
be careful not
out
all
the oil.
of
the drain plug.
IMPORTANT
to
unscrew the drain plug completely at once so
g.
13).
that
most
of
the
fig.13
fig.
14
d) Assembling the
1. Place
2.
3.
4.
5. Replace the positioning pins with the
6.
the
machine
Insert
the two threaded pins 202476-0-10
part
of
the machine.
Position
300321-0-10 and rubber band 302096-0-10) using
Mount
the oil basin with the respective screws, without tightening them completely.
Mount
the drain plug.
oil
basin (fig. 14)
as
shown
in
fig.
14.
in
the two holes diametrically opposite
the oil basin (without the plug 302361-4-10 and complete with felt pad 302316-0·10,
two
the
above pins
remaining screws and tighten
as
a guide.
all
screws.
to
one another
in
the
low
er
gask
et
SPARE
PARTS
CATALOGUE
2S
I. HOWTO
11)
INTRODUCTION
1.
The
spare pnrts catalo!lue comprises a series of tables illustratin!l the various parts
up
the two hasic machines and their subclasses.
2.
In
order to facilitate the us!'
machine.
3.
The
conversion !lroups of the hasic machine and its subclasses
4. The subclass
machine from which it
5.
On each illustration the single parts of the assembly shown arc identified by a number. Assemblies
parts cannot he SliPIJiied separately, are identified hy capital letters. Parts and devices which are not
equipment with the machine