UnionSpecial Lewis Columbia 30-210 Instruction sheet

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CATATOG
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INDUSTRIAl
SEWING
}IACHINES
ctAss
30
TOCKSTITCHBTINDSTITCHMACHINES
ESI?tStil
UI{lO,ry
SPECIALCORPORATIO]V
CHICAGO

Catalog No. 194-3
INSTRUCTIONS
FOR
ADJUSTING AND OPERATING
LIST OF PARTS
Styles
30-2L0 30-220
30-410 30-230
Second Edition
Copyright t964
By
Union Special Corporation
Rights Reserved in All Countries
UNIOI{ SPECIAL CORPORATIOI{
INDUSTRIALSEWING
MACHINES
CHICAGO
Printed in U.S"A.
May, 1981

IDENTIFICATION OF MACHINES
Each IJNIOI{SPECIAT-
LEWIS
machine carrles a Style number, which, in this Class of
machines, is stamped in the Style plate on the front of the column. The serial number
of each machine is stamped in the main frame at the left. upper main shaft bearing,
under the head cover. APPLICATION OF CATALOG
Ttris catalog applies specifically to the Styles of machines listed herein. All
references to direction, such as right and left, forward and back, etc., are taken
from the operatorrs position rthile seated at the machine.
The operating direcEion of the handwheel is away from the operator.
DESCRIPTION
OF }IACHINES
High Production, TI^rolhread, Single Curved Needle, Lockstitch, Blindstitch, Cylinder
Base l4achine. Non-Skip 1 to I Stitch. Needle Shogs or Vibrates frorn Side to Side.
Angle of Needle Penetration is in line of Feed. Calibrated Penetration Adjustment.
Knee Lifter for Inserting and Removing Work. Work SuPport Plate. Maximum
trIork Space
to Right of Needle 10 Inches.
30-2L0 For felJ-ing quarter, half or full linings of light weight material in menrs
sult coats and sport coats. Can also be used on wonen's high quality suit coats.
Equipped rarith automatic plunger to stitch over pockets vrithout c1-osing pocket or
missing a stitch. Side and lower feed. Stitching invisibl-e on completed seams.
3O-Z2O Sameas Style 30-210 except equipped to sew nedium weight material in menrs
topcoats and overcoats. Can also be used on women'shigh quality lined coats.
30-230 For felling rnedlum weight suit coat.s and similar garments rnadewith book
seamedbottoms only, instead of binding or plping. Fells 3/16 inch frorn turned
edge. Equipped hrith automatlc plunger to stitch over pockets withou! closing
pocket or missing a stitch. Stltching invisible on completed seam.
30-410 For felling quarter, half or full linings of extra light weight material such
as tropicals in rnenrs suit coats and sport coals. Can also be used on rtomen
t
s
high quality suit coats. Equipped with auEomatic plunger to stitch over pockets
ttithout closing pocket or mlsslng a stitch. Slde and lower feed. Stitching ln-
vi-sible on completed searns. NEEDLES
The recormrendedneedle for the machines in Class 30 is Type 79 BB-O9O
/036.It has
a blade dlameter of .036 inch (.90 rmn). It i-s also available in the fol-lowing slzes:
NEEDLE
TYPE STZE
INCHES MILLNIETERS
29 BB-075
/ O29 .029
29 BB-100
lOt+O .040
Selection of proper needle size is determined by size of
material used. Thread should pass freely through needle eye
good stitch formation.
lrlhen serding, immediately discard any needle which may have
point.
To have needle orders promptly and
a sample needle, or the Type number should
"100 Needles, Type 29 BB-090
/036" .
accurately filled, äD
be forwarded. A complete
.75
1.00
thread and r^/eight of
in order to produce a
a hooked or blunt
empty container,
order r^rould read:

SPtrED
The recornmended speedof these machines is 1500
R. P. M.
THREADING
Thread machines in accordance with threading diagram below.
-=-:
i-:
ri
I'-J: l
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OILING
These machines should be oiled twice daily, before the morning and afternoon
starts. Use a goo{ grade of straight mineral oil of a Saybolt viscosity of 90 to
125 seconds at 100" Fahrenheit.
Most of the oiling places on these machines are readily identifiable because of
the fact they are painted red. However, reference to the oiling diagram on pa.ge 5
will be beneficial.
Please note that it wiII be necessary to remove head cover, cylinder end cover,
and to tilt the machine back from the sub-base to reach some of the oiling places.
Referring to the oiling diagram, it will be noted that there is a Iubrication point
marked "4". This point on the diagram refers to the cover over the hook driving
gears, which are lubricated with a standard wheel bearing grease. Periodically,
the cover should be removed and the grease replenished, if necessary.

ORDERING
REPAIR PARTS
ILLUSTRATIONS
- Thls catalog has been arranged to slnpllfy ordering repair parts. Exproded views
of various sections of the nechaiism are "i.ro",,'"o that the parts may be seen ln their
actuar positl.n ln the rngch_rng.
on the page opposite the illustratlon rrirr be found a
listing of the parts erith their - pr.t ni-t.r" r' descriptlon and the number of pieces
required ln the particular view bäing shown. '
Nurnbersin the first column are reference numbers only, and merely indlcate the
Position of that Part in the illustration. Reference mlnber should never be used in
orderlng parts. Always use the part number listed i.n the second col'rnn.
component parts of sub-assernbries which can be furnlshed for repairs are indi-
cated by lndentlng their descriptlon under the description of the main sub-assemblv.
Example:
39
40
4L
42
4115-72-4
L6-352
4L2L-3
1306 L
Feed and Plunger Bearing Block, complete I
Bushing I
Plunger Frame and Barrel Assembly I
Screw I
block is not
reconmended,
rt I^7i11 be noted in the above example that the plunger bearing
listed' The reason is that replacement of this part individually is not
so the complete sub-assembly should be ordered.
At the back of the book r,üi1l be
in this book. This rrrill facilitate
only the part number is known.
found a numerical i.ndex of all the parts shown
locating the illustration and description when
IDENTIFYING PARTS
Inlhere the construction permits, each part
numbers represent the same part, regardless of is stamped r^rith its part number. part
catalog in which they appear.
USE GENUINE
REPAIR PARTS
---__^--Sy:g:1" i" the operation of these machines can be secured only with genuine
uNrONsPEcrAL Repalr parts as furnished. by rhe union special bo.po-"til.r, lts subsid_
iarles and authorized distributors. They are designed according to the most approved
sclentlfic principles, and are nnade
wlth utnost precision. Maxiium efficiency and 6u-
rability are assured,
Prices are net cash and
v/arded f .o. b. shipping point.
rected. A charge is made to
TERMS
subject to change without notice. All shipments are for-
Parcel Post shipments are insured unless otherwise di-
cover Postage and insurance.

r
ADJUSTING INSTRUC TIONS
REMOVING PLAY IN CONNECTING RODS
Access to the connecting rod adjusting
screws is through the opening in the top of
the arm (Fig. 1). Remove screws and arm
cover plate. Tighten screw (A) in plunger
drive connecting rod until machine begins to
bind while handwheel is being turned in the
operating direction, which is away from the
operator. Then loosen screw until machine
turns freely. Repeat procedure for feed lift
connecting rod and feed drive connecting rod,
screws B and C respectively. Replace the
cover plate and screws.
SETTING OSCILLATING (INFT TO RIGHT) MOTION OF NEEDLE
Before timing the needle with lower plunger it is
necessary to establish correct left to right movement
of the needle. To set this properly turn handwheel away
from operator until needle has completed its forward
stroke on the right hand side. Loosen set screws in
gear (A, Fig. 2) and rotate needle vibrating cam (A,
Fig. 3)until slot is in ahorizontal position below center.
Retighten set screws in gear.
After this adjustment has been made, rotate hand-
wheel until needle eye is at the center of projection of
the needle guide on the left hand side. At this point Fig. 2
needle should make slight contact with projection. In order to position needle
accordingly loosen screw(B, Fig. 3)andtap block(C) left or right. Retighten screw.
TIMING NEEDLE WITH LOWER PLUNGER
Check the adjustment by turning handwheel slowly in
the operating direction and note carefully when plunger
is raised toits highest point and comes to a full stop that
the needle is approximately 3/ 16 inch from the plunger
and is about to enter the cloth side as the needle makes
the right hand penetration.
Loosen screws (A,
Fig. 4) in main shaft
headdriving gear (B) and #.$
In timing, turn the handwheel slowly away from
you and watch the movement of the plunger. You
wiII note that on every s
econd revolution of the
handwheel the plunger is raised to its highest point.
When the plunger is raised to its highest point and
comes to a stop, the groove or slot in the main
shaft will be on top. Maintain this position while
timing the needle to the plung€r, which is accom-
plished by turning gear (C, Fig. 4). Turn gear
toward operator until the needle has raised to its
highest point and is again moving toward the plunger
on the right hand side of the guide. When the point
of the needle is within approximately 3/ t0 inch of
Fig. B
remove gear from shaft.
d
C(rzn oatve)
Fig. 1
Fig. 4

ADJUS
TING INSTRUC
TIONS (C ontinued)
the center of plunger insett main shaft gear (B) in position on the shaft and tighten
pointed spot screw in the groove of the main shaft; also tighten set screw in gear.
You will note that the left hand penetration of needle is
into the lining and at this time the lower plunger does not
raise high enough to meet the needle. Therefore, the tim-
ing of the needle and plunger can only be accomplished on
right hand penetrationof needle. You will also note that the
movement of needle bar is from side to side on every other
penetration of the needle, which is necessary in joining the
lining to body of garment. In case the plunger itself gets
out of time, it may be retimed through the plunger pinion
(D, Fig" 1) on the main shaft. The plunger is set correctly
if the LowEST point to which the plunger descends is the
same on two consecutive revolutions of the handwheel.
NOTE: The plunger must be at its highest
point and stationary while needle penetrates
the material. After the stitch is completedthe
plunger descends and material moves forward.
TIMING HOOK WITH THE NEEDLE
If thread breakage occurs, the most prob-
able cause is incorrect timing of the hook. To
properly time the hook, the following procedure
must be carefully followed.
Remove hook gear cover (A, Fig. 5) at the
back of the machine. Turn the handwheel in
the operating direction until needle starts its
penetration stroke on the left side. Continue
turning the handwheel until the needle has
completed its forward stroke and has returned
3
| 32 inch. The hook point should be directly
over the center of the needle. Should it be
necessary to move the hook, loosen set screws
(A, Fig. 6) in the upper gear and rotate hook
until hook point is over the center of needle.
Retighten screws. Note the timing marks (B) Fig. 6
on theupper and Iower gears. The two marks, one on each gear, shouldbe opposite
each other. The gears are marked so that after correct timing has beenachieved,
the lower gear can beremoved for cleaning or the removal of fouled-up thread from
the hook without disturbing the hook - needle setting.
NOTE: To eliminate incorrect settings dueto back-
lash in hook timing mechanism, backlash should be
taken up by turning hook gear (C, Fig. 6) in clock-
wise direction.
SETTING THE HEIGHT OF HOOK
The hook height is relative to the needle and
generallyadjustment is notnecessary as it is set at
the factory. The hook point should be set . 00
5 to
.010 inch above the needle. Change in needle size
will require resetting of the hook"
Fig. 5
Fig" 7

IADJUSTING INSTRUC TIONS (C
ontinued)
. To change the height of the hook, remove lower gear
(C, Fig" 6)
. This will expose screw (A, Fig. ?) tfrat
holds the hook shaft bushing (B) in position through the
flange of the bushing. This bushing is eccentric and
turning it will change the height of the hook. A second
screw hole is provided for additional adjustment by merely
removing screw (A) and placing it in this hole. Afte r
proper height is obtained, tighten screw. Place lower
gear on hook shaft, lining up the two timing marks and
tighten screws. IJse lower gear to take up any end play
in the hook shaft.
Fig. I
the lower feed must be changed, refer
bottom feed point.
TIMING THE BOBBIN CASE RELEASE
The bobbin case release is timed cor-
rectly if there is a 7
| 32 inch clearance
between the release lever (A, Fig. B) and
bobbin case(B), when the release lever has
traveled its full stroke to the left and the
backlash in the hook has been taken up to the
left. To adjust the opener, turn handwheel
in operating direction until the release lever
has traveled its full stroke to the left.
Loosen screw (A, Fig. 9) in bobbin case
release lever and turn opener to obtain the
t | 32 inch clearance. Tighten sc
rew.
FEED ADJUSTMENT
The lower or bottom feed is set at the
factory and no further adjustment should
be necessary" However, if for any reason
to the instructions covering the setting of
SETTING BOTTOM FEED POINT HEIGHT
Turn handwheel in operating direction
until the feed point reaches its highest
position and the feed plate reaches its
lowest position. At this point, there
should be from S|SZ to ll} inch space
between the top of the feed plate and the
bottom of the presser foot (
Fig. g). To
obtain this adjustment, loosen the machine
base locking screw (A, Fig. 10) and lay
the machine on its back. Then, loosen
screw (A, Fig. 11) and hotd the link (8,
Fig. 9) so that the feed point is pressed
up against the bottom of the presser foot.
Turn the handwheel in operating direction
until the feed point reaches its most for-
ward position, and retighten the screw
(A, Fig. 11). Fig. 10

SETTING BOTTOM FEED POINT IN
ADJUSTING INSTRUC TIONS (C
ontinued)
LINE OF FEED
Turn the handwheel in operating direc -
tion until the feed point first touches the
presser foot. At this point, the front edge
of the feed point should be aligned with the
front edge of the knurling on the feed plate.
To make this adjustment, loosen screw
! (8, Fig. 11) and, by means of the lirrk (A,
I Fig. L2'), move the feed point forward or
: backward as required. Retighten screw
(8, Fig. 11)
. If, in this adjustment, the
: feed point has to be moved an appreciable
t distance, repeat the adjustment "Setting
' Bottom Feed Point Heightil in the previous
instructions.
to Fig. 11
SETTING THE LINING FEED
To set the lining feed point correctly, it is neces-
sary to synchronize the motion of lining feed rocker
lever (A, Fig. 13) and tining feed cam (B). Turn
handwheel in operating direction until slot in needle
vibrating cam is in vertical position to the right of
center (A, Fig. 14). Loosen screws in lining feed
cam (B) and turn feed cam until follower roller (C)
is in center of high lobe of cam. Retighten screws.
With machine in this position loosen binder screw
(D, Fig. 61
in crank lever. Place a LlL6 inch shim
(E) between lever and lug(F) on head. Press lining
feed point against presser foot and tighten binder
screw. Check feed motion by turning handwheel in
operating direction. The feed point motion, when
adjusted correctly, will travel a rectangular path.
Fig. 11
SETTING THE FEED PLATE HEIGHT AND PRESSURE
Turn handwheel in operating direction until the feed
point has reached the lowest point of its travel. At this
position, there should be no play between the feed plate
and the presser foot.
To make this adjustment, loosen screw (8, Fig. t2')
and, with the right hand, hold the feed plate against the
presser foot" Then, by holding the feed tink (A) with the
left hand, push the feed point down until there is L
| 32
inch clearance between the block (C) and the plunger
bearing block (D). Then, retighten screw (B).
The feed plate pressure is adjusted at the factory.
If it becomes necessar;r
to change
the pressure,
turn the knurled screw
(C, Fig" 1
1) clockwise
for more pressure and
c o
u
nt er clockwise for
less pressure, referring
Fig. 13
10

(
1
ADJUSTING INSTRUC TIONS (C
ontinued)
LINING CLAMP
The lining clamp opening lever (C, l'ig. 13)
must be
adjusted so that when the lining feed is in light contact
with the presser foot on the beginning of feeding stroke,
the point of the lining clamp lever is in fight contact
with the lining clamp (Fig. 13). Adjust by loosening the
binder screw (D, Fig. 13).
The object of this lever and adjustment is to auto-
matically release the lining clamp on the feeding stroke
of the upper feed which avoids any pressure being
applied to the lining.
Fig. 15
time, both plies would be
the needle must be set so
and the plies of lining are
TIMING I\EEDLE WITH LINING PLUNGER
The lining plunger mechanism, which operates the
lining plunger (A, Fig. 15) is designed so that the
plunger will recede slightly before the needle pene-
trates the fabric.
The reason for this can be understood more clearly
if reference is made to the sketches below.
SketchASketch B
You wilt note in sketch A on the right or in-stroke
of the plunger, both plies of lining are stretched over
the plunger. If the needle were to penetrate at this
penetrated. Therefore, the timing of the lining plunger to
that penetration takes place while the plunger is receding
separating, as in sketch B.
tl
ll
rl
rl
ll
ll
To accomplish ttds setting turn handwheel in ope
rating direction until needle is
on the down stroke otl the left Eide and thepoint of needle iö approximately 1/32 inch
from the center of lining plunger. Now, Ioosen screws in lining plunger ..ry14,
(Fig. 16) and rotate c"ti in cJunterclockwise direction until. follower roller (B)is
jusf leaving high lobe. (Examine contact surface of
cam and note high lobe; it appears as a raised flat
about 1116 inch long). Retighten screws in the cam.
with machine in this position, loosen the binder
screw (G, Fig. 6) in the lining plunger yielding crank
lever and plJce a . 003 inch shim between the lining
plunger adjusting lever (H, T'ig, 6) and the presser
ioot. Applypressure at
(J)and retighten binder screw.
11
Fig. 74
Fig. 16

ADJUSTING INSTRUCTIONS (Continued)
Fig. 17
nut (D, Fig. 11
) and turn screw
ADJUSTING LENGTH OF STITCH
Stitch length adjustment is made through
the hole in the top of arm (Fig, 18). (IUOTE:
The cover has been removed from the arm).
Turn the handwheel in the operating direction
until the lock screw (A, Fig. 18) and adjust-
ment screw (B) are in view. Loosen the lock-
screw and turn the adjustment screw in the
required direction. Turning the screw clock-
wise shortens the stitch and counterclockwise
lengthens it. Retighten the lockscrew (A) and
replace top cover.
Changing the bottom feed length will re-
quire a cornpensatin_g_
adjustment of the,lining feed. The lining feed is controlled by
lever (E, Fig. 13). Moving lever anay from öperator lengthen-=s
lining feed movin"g
it toward operator shortens feed. Maximum stitch length is z s. p.r., ror äl1 styteä
except Style 30-230 which is 3 S.P.I., measured as indicated on skeich.
SETTING THE HEIGHT OF BOTTOM PLUNGER
The height of the bottom plunger is adjusted
by turning knob (8, Fig. 10) clockwise to raise
the plunger and counterclockwise to lower it. To
provide for the maximum plunger adjustment,
there should be L
| 32 inch clearance between thä
plunger crank (A, Fig. 17) and plunger block (B)
when the adjusting knob (8, Fig. t0) is turned
clockwise as far as it will go. Note that there
are pins which stop the knob (B) after each corrr-
plete revolution. The knob may be pulled out
toward the operator to lift it over the stop. The
knob can make three complete revolutions. To
make the t | 32 inch adjuJtment, turn the knob
clockwise as far as it will go" Loosen the lock
(E) in the required direction. Retighten nut (D).
It has been found to be advantageous to set
the lining feed to its maximum length, and then
set the bottom feed to obtain the desired full-
ness in the lining. The setting should be done
preferably on garments where maximum full-
ness of lining is desired.
G --1
I
1 inch
J
INSERTING BOBBIN IN HOOK
Turn the handwheel in the operating direction until the needle is at its hishest
point of travel away from the bobbin case.
Open the bobbin case tatch (A, Fig. 19) and insert bobbin (B) so that the thread
will come off the bottom of the bobbin in the direction of the case tension spring (c)
and through the stot (D) in the bobbin case. Leave ürree or four inches of thiead
outside the bobbin case. close bobbin case latch. Thetension on thebobbin thread
is controlled by turning screw (E) in the required direction. For easier access to
this screw, have the needle in its highest po-sition.
t2
Fig. 18

ADJUSTING INSTRUC TIONS (C
ontinued)
NOTE: We suggest, for a new operator, that the needle
thread be held lightly in the hand and the handwheel turned ,.:'
until the first stitch is completed, which will draw the ;'.'
bobbin thread underneath the tension spring
CAUTION: Donot runthe machine without material under- ,':
neaththe presser foot unless the feed point is out of contact "
with the foot and the needle thread is out of the needle. r."l
THREAD CONTROL
Check to be sure the machine is threaded inaccordance ü
with the threading diagram on page 4, and sew machine ,,
under power to check stitch. If hook is not catching the
needle thread as a result of the needle not throwing up a
large enough loop, the needle carrier should be adjusted.
To make this adjustment, turn the handwheel in the operating direction until the
needle carrier is in its highest position, and, with a wrench, Ioosen nut(A, Fig. 20)
and turn the needle stud (B) in the required direction. By means of this stud,
moving the needle point toward the hook will enlarge the loop. This of course,
changes the previous 3132 irlcln setting of the hook point to needle. However, ai
times this will be necessary because of peculiarities of thread or material.
If the needle thread srlErpsas it passes over the top of the bobbin case, this is
an indication that either the tension on the needle thread check spring (C) is too
great or that the hook opener is too slow or fast. If the tension on the check spring
is not great enough, the needle thread will not come off the hook fast enough with
the result that the hook will pick up the needle thread a second time, causing the
rnachine to break thread. To make this adjustment, turn the thread contröIler
staff (D) in the required direction.
Thread breakage may also result if the needle tension is set either too Ioose or too
tight. The tension onthe needle thread is regulated
by turning tension nut (E) to the right or left as
required. This tension should be set sufficiently
to produce the proper stitch. Do not, however,
make this adjustment too tight, äs the thread will
draw the material and leave impressions or dimples
on the face of the garment.
ADJUSTING AUTOMATIC PLUNGER
Machines in this class are equipped with an
automatic plunger to insure a uniform depth of
needle penetration when felling across parts of a
garment where there is considerable variation in
thickne ss
.
Below the regular or work presenting plunger,
which is in the plunger barrel (A, Fig. 21) is the
automatic plunger (B).
To adjust the automatic plunger in relation to
the bottom plunger, back off the crown adjusting
screw (B, Fig. 15) on the presser foot. Loosen
knurled adjusting nut (C, Fig. 2t) so that the
Fig. 19
13
Fig. 20

ADJUS TING IUSTRUC TIONS (C
ontinued)
automatic plunger (B) does not contact the bottom plunger
at any time. s"et
the penetration knob (8, Fig. 10) so that
the bottom ptunger iÄ high enough to cause the needle to
penetrate th; mäterial tö the pioper depth. Then, turn
the penetration knob about 2 ot 3 notches high-er' With the
bottom pfunter at low position, turn the knurled adjusting
nut (C, Fig .'ZL) until tnö aistance between the lower nut (D),
on the bottom plunger, and the automatic plunger (B) is
L
I 32 inch.
Turn the crown screw (8, Fig' 15) down' and test the
screw to see that when a po;ket or pleat is crossed the
amount of needle penetration remains the same.
REMOVING PRESSER FOOT
Do not change the presser foot unti-l{ou have carefully
noted the relative posiiion of the vafious parts which
operate in conjunction with the presser foot in order that
you may be abie to reassemble the relating parts correctly'
To remove presser foot, la,y the machine ,back on the
table. Turn handwh".r--oär-iü" flyry.tt is at its lowest Fig' 21
ä#: il;;;;-;;;* (c, Fis. z)-*lü*.hords the footto
ihe headof the machine.'r-ofi"" ieed prateby pressing handagainst feed depresser
;;k" iF; Fig. 11). This releases the foot'
In replacing the foot be sure to see that lining. feedlC, ,Tig:,9l,it*p"operly in-
s""t"ä lrr'trr" täft side o1 the foot, and that.ttre polnt of the lining clamp depresser
i;;;lF; i.i!. zol is at itre right äf the lug (c, i'ig. 15) on the lining clamp'
Alsoseethatthegrooveofthebobbincaseisinlinewiththelugonbobbincase
retainer (D, Fig. 15).
REMOVING THE HOOK
Removethe needle from the machine. Also.remove the presser foot, referring
t" i""i"r"äiäÄ "" i n"**i"g the presser _Footrr. Remove -needlebar vibrating link
iö,-Fig.- iöl uy looseninj th-"""r"-* (H). Loosen screw (J) and remove needlebar
lnäfirlii" in tu'rn releasäs the needle carrier, so that it may be raised to allow re-
moval of hook.
Remove bobbin case release by loosening and removing screw (K, Fig, 20).
n"*"""-f.*." g"., tC, -fi!. OlUylöosening tlie set and spot screws which hold the
gear on the shaft.
Thehookmaynowbewithdrawnfromthemachine.Inreassembling,-reverse
the above instruciions, noting carefully that all parts are. replaced in,their proper
"ä"iii"". ff ä ,r"* tr".if. -is pü:ti" tft" äachine it shoula be limed with the needle;
refer to instructions on "Timing the Hook".
TENSION RELEASE ON NEW MACHINES
Thetensionreleaseshouldbepositionedsothatitdoesnotseparatethetension
discs until the knee p""""- i" actiäted. This adjus-tment.is rnade -by__loosening
the
screw on top of the nrac-t<et
""a"" tft" heäd cover.-After adjustment is made retighten
screw.
L4

EXPLODED VIE
WS
AND
DESCRIPTION OF PARTS
FOR
CLASS 3O MACHINES

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MAIN FRAME, BUSHINGS, COVERS AND MISCELLANEOUS PARTS
Ref.
No.
1
2
3
3A
I5
6
n
,
B
q
10
104
11
72
13
14
'klb
154
158
16
17
18
19
20
21
22
23
24
25
26
27
2B
29
30
31
32
33
f34
344
35
36
37
3B
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
5B
59
60
61
'.NOTE:
fNOTE:
Part
No..
cs320-1
/2
16-368
125-23
666-6
5
39-1
28
1B-9
57
432-278
1B-59
6
47-55
20-734
61-?
I
666-1
63
1B-903
432-280
11
0
-358
1B-1
037
t47 -10
634?0
A
22564 D
4-1
36
476-367
LS39B
LS299
18-1045
61-7
5
1B-1046
FP5O5
1160
L
CS313
32-276
17
-167
4B-166
1792 L
20-34
50-263
L
1OB1
L
1B-998
1B-959
14
-508
50-262
3-91
1B-1
030
40-1
39
5!-26
22-C214-2
1005
L
14-472
1173
L
1137
L
41B-1
026
22-296
18-1028
27-404
4749-30
27-237
79-31
22-C274-4
22-C274-4
44-307
1
B-1
045
1321 L
22-148
16-356
16-354
1055
L
16-3?9
Description
Set Screw, for No. 16-277
Bushing, right
Oil Cup
Oil Wick, for Main Shaft Bushing, right
Collar
Screw
Arm Cover
Screw
Thread G\ride
Nut -
Oil Tube
Oil Wick, for Main Shaft Bushing, left -
Screrv, for suppcrting head cover
Head Cover, complete
PIate
Drive Screw
Eyelet
Eyelet, used on new machines
Screw
Work Support Plate
Bushing, co;nplete
Screw
Nut
Screw, for No. 1-67 ---
Oil Tube
Screw
Adjusting Screw, for No. 4-136---
Nut
-----
Screw
Cylinder End Cover -------
Stud, for supporting machine
Plunger Regulating BelI Crank, large
Adjusting Set Screw
Lock Nut
Cylinder Base Hinge Bracket
Set Screw
Screw
Hinge Bracket Pivot Screw
Hinge Bracket Shaft
Sub-Base Hinge Bracket
Sub-Base
S'ub-Base Locking Latch Screw
Washer
Sub-Base Locking Latch
Pin -----
Set Screw, for No. 14-472
Plunger Regulating Bell Crank Shaft
Collar, for No. 418-7026
Set Screw
Plunger Regulating Screw, complete
Pin -----
Screw
Spring
Plunger Regulating Knob AssemblY
Spring
BalI ----
Stop Pin
Stop Pin
Notched Disc Plate -------
Screw, for No. 2-116 (Arm)
Plunger Rocker Shaft Bushing
Dowel Pin -----
Bushing, for Feed Elevating Rocker Shaft
Bushing, for Feed Rocker Shaft
Pin
-----
Plunger Rocker Shaft Bushing, on new machines
747-10 will be replaced by one each Nos. 63470A and 22564 D.
No. 18-959 will be replaced by one No. 14-508.
Amt.
Req.
1
1
1
1
1
2
1
2
1
1
1
1
1
1
1
2
2
2
2
1
1
2
2
2
1
1
1
1
1
1
1
2
4
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
3
2
2
1
1
1
1
On
On new machines No.
new machines two
t7

u(ffi"
- L\--__jzl.d .,/
^\t- v AI D
y1*@
50---g
';"lii)n;)
,1,i1i1,,,,
,,,,1,1
ti-,',

1
2
3
4
5
6
nI
B
9
10
11
L2
13
t4
15
16
17
1B
19
20
2L
22
23
24
25
26
27
2B
29
30
31
32
33
34
35
36
37
3B
39
40
4t
42
43
44
45
46
47
4B
49
50
51
52
53
Ref. Part
ItTo. No.
Ro
rA
RYHoK
J'T#3#f"9##R"35'f#ft"
rA
K
E
-
u
P'
Description
Adjustable Hook Bushing, complete--- 1
Clamp Screw-- 1
Hook Driven Gear 1
Spot Screw 1
Set Screw--- 1
Hook Gear Cover, complete -- 1
Screw 1
Clip 1
Hook Gear Cover ----- 1
Screw 1
Hook Timing Shaft 1
Hook Shaft Driving Gear 1
Set Screw 1
Spot Screw 1
Collar L
Set Screw 2
Needle Carrier Vibrating Worm Gear 1
Set Screw 2
Hook Shaft Driving Gear 1
Set Screw -----'r-- 2
Screw 2
Eccentric Screw 1
Set Screw, for No. 1019 L 1
Take-up Lever, complete --- 1
Take-up Lever Shaft 1
Take-up Lever Slide Block 1
Needle Qarrier Connecting Rod, upper 1
Needle Bell Crank Shaft 1
Nut -- 2
Needle Bell Crank 1
Needle Carrier Shaft- 1
Needle Carrier Shaft--- 1
Slip Bushing, for needle carrier shaft 1
Needle Carrier Connecting Rod, lower 1
Screw, for No. 118-31 -- 1
Set Screw, for Nos. L7
-175 or L70B L 1
Screw, for No. 1705 AL 1
Needle Carrier 1
Needle 1
Hook, complete with bobbin case 1
Guard Screw 3
Needle and Thread Guard 1
Hook, w ith shaft 1
Bobbin Cas e, complete 1
Tension Spring --- 1
Tension Screw --- 1
Screw 1
Screw 2
Hook Gib - 1
Needle Clamp, with pin -- 1
Needle Thread Eyelet 1
Screw, for needle thread eyelet 1
Bobbin ---:-- 1
Bearing Screw 1
Set Screw, for No
. L4-426---' 1
Screw, for presser foot
Presser Foot (See Page No. 31)
-
Amt.
Req.
416-10
tB
-227
1030
L
1031L
1029
L
1791
AL
1075
L
T797L
7791L
LS314
t764 L
1?61
L
1029
L
1031
L
to27
L
1029 L
7762L
t025 L
1O2B
L
LO25
L
BBB
L
1B
-902
1022 L
445-235
1019
L
BB7
L
t7t2 L
14-426
1160
L
1710L
17OB
L
>l< L7
-175
>k 16-382
1709L
L7O7L
1003L
1706
L
118
-31
906
A-1 L
1036
L
1035
L
905
AL
1041
A
L
1043
L
1046L
18-912
1039L
1037L
17
05 AL-L | 2
t47
-22
1036
L
to47 L
1711
L
LS330
876
L
54
55 1
1
>1.
Not furnished with machine, crder as extra send and charge item.
19

\,
.(
5
7
dl
;w
\
20