Consew 206RB User manual

OPERATING INSTRUCTIONS
MODEL
206RB
WALKING FOOT NEEDLE FEED
SEWING MACHINE
CONSOUDATEDSEWING MACHINE CORP.
1115 Broadway 2401 South Broadway
New York, N.Y. 10010 Los Angeles, Calif. 90007
[phone] [phone]
COPYRIGHT© 1978 CONSOLIDATED SEWING MACHINE CORPORATION
•:—1
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CONTENTS
OPERATING INSTRUCTIONS PAGE
Characteristics and Capacity 1
Setting up the machine 1
Direction of rotation 2
Threading the needles 2
Oiling 2
Needle and thread selection 4
Needle and thread chart 4
Inserting a new needle 4
Threading and inserting bobbin case 5
ReiiK>val of bobbin case 5
Winding bobbins 6
Stitch length adjustment and reversing lever 6
Winding procedure 6
To remove the work 7
Regulating the thread tension 7
How to re-set the safety clutch mechanism 8
Adjusting lift of the alternating presser foot 8
PARTS LIST AND ILLUSTRATIONS 9-17
MAINTENANCE PROCEDURES
Setting the height of the needle bar 18
Timing the sewing hook 18
To remove and replace the sewing hook 18
Adjusting the thread release finger 19
Removing and adjusting tension and thread controller 20
To raise and lower the feed dog 21
Timing the needle with the feed dog 22
Timing the lifting presser foot with feed dog 22
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CHARACTERISTICS AND CAPACITY
The CONSEW MODEL 206RB is a high-speed compound walking-foot needle-
feed machine•
The maximum operating speed after a break-in period is 3300 stitches
per minute depending, of course, on the type of material being sewn,
its thickness and that of the seams being crossed*
The maximum possible stitch length is S^s stitches per inch (7*25mm)*
The alternating presser feet have amaximum lift of 1/2" (12*7mm)*
The amount of lift is readily adjustable*
To assure durability and trouble-free operation, it is imperative* that
for the first several weeks of operation the maximvim speed is held to
no more than 2700 RPM in order to allow the parts to become properly
broken in*
F/GW
SETTING UP THE MACHINE
Carefully unpack machine from packing case and make sure that all small
parts and accessories are removed from packing material*
Wipe machine clean of protective grease and lubricate all oil holes with
a good grade of sewing machine oil*
The bed of the machine is made to standard ddimensions and requires a
standard "long arm" table top*
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-2"
DIRECTION OF ROTATION
In operation the handwheel of the machine alv^ays turns toward the operator,
To avoid tangled threads and jamming of the sewing hooh, do not turn hand-
wheel otherwise*
THREADING THE NEEDLES
Prom the thread stand lead the thread from back to front through the lower
guide hole in pin "P" on top of the machine arm, then again from right to
left through the upper guide hole in this pin* Pass thread in weaving
fashion through the three holes in guide "B", and from right to left over
and between the tension disc "C"* Now pull thread downward and from
right to left beneath and around thread controller "D"; continue to pull
thread upward against the pressure of the wire spring into the fork "E"
in the thread controller* Guide upward through thread guide "F" and
from right to left through the eye at the tip of the take-up lever "G",
down through thread guide "F" again and then through "H", "I" and "J"
from left to right through the eye of the needle* (See Fig* 1)*
OILING
Do not operate the machine, even if only for testing, unless it has been
properly oiled at every spot requiring lubrication* The arrows marked "0"
on Figures 2A, 2b, 2C and 2D indicate these spots* Also on the machine
most oil holes are ringed in red*
Oiling must be done at least twice daily when the machine is in con-
tinouse operation to assure free running and durability of the operating
parts*
NOTE: - During the breaking-in period a new machine should be oiled more
frequently*
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NEEDLE AND THREAD SELECTION
CONSEW MODEL 206RB machine is set up to use standard needles styles
135 X 17 (catalog 3355) for fabric or 135 x 16 (catalog 3370) for
leather« vinyl, etc* in sizes ranging from 12 to 24* The thickness of
the sewing thread, which must pass freely through the eye of the needle,
determines the size of the needle*
Remeinber->-uneven, knotted or rough thread impairs the satsifactory sewing
performance of your machine*
Only left twist thread is to be used for the needle* To test for twist,
hold a length of thread between thunband index finger of your hands* Turn
thread counterclockwise* If it will twist tighter, it has a left twist*
If it \mravels, it has *a right twist (Fig* 3)*
vV
FIG, 3
The bobbin can be wound with either left or right twist thread*
NEEDLE AND THREAD CHART
Needle Size
12
13
14
16
18
20
22
24
INSERTING A NEW NEEDLE
Thread Size
80-90
70-80
60-70
40-60
30-40
24-30
16-24
12-16
(Cotton)
Turn handwheel toward you until needle has reached the highest point of
its travel* Loosen the needle set screw about one turn, pull down and
renK>ve the old needle and insert a new one* Push the needle tip into
the needle bar as far as it will go, setting its long groove toward
the left with eye of the needle going from left to right* Tighten
needle set screw securely*
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Hold the bobbin between the thunib and forefinger of your right hand and
pull out a length of two or three inches of thread. Holding the bobbin
case in your left hand, turn the open side up and place the threaded
bobbin into it.
With the right hand guide the thread into the slot in the edge of the
bobbin case. Then pull the thread to the left, under the tension spring
and into the delivery eye. In order to heep the bobbin from dropping out
of the case when it is turned with the open side down, always keep the
hinged latch at the front of the bobbin case open (Figs. 4A, 4B and 4C).
F/GS 4A'C
Take the threaded bobbin case by the latch "L" and place it on the center
stud "A" (Fig.5) of the bobbin case holder. Release latch and press
bobbin case onto center stud until the latch catches the undercut thereon
with a click that can be heard. Permit two to three inches of bobbin
thread to hand down freely. Be sure to push slide plate to the right
before starting to sew.
REMOVAL OF BOBBIN CASE
Turn handwheel toward you until needle reaches
its highest point. Open slide plate "K"(Fig.l)
by pulling it to the left. Pass left hand under
table into opening on drip pan. With left thumb
and index finger open the hinged latch "L"
(Fig. 5). and pull bobbin case and bobbin from
rotary hook. While the latch is held open,
the bobbin will be retained in the bobbin case.
Release of the latch and turning of the open
side of the bobbin case downward will cause
the bobbin to drop out.
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WINDING BOBBINS
The bobbin winder is mounted on the table top with its pulley in front of
the driving belt. The pulley will separate from the belt after the
bobbin has been wound with sufficient thread.
Push the bobbin on bobbin winder spindle as far as it will go. Pass thread
from thread stand downward through eye in tension bracket; then between
and around the back of the tension discs bring thread foward toward
bobbin and wind from below in clockwise direction several times around
bobbin. Push bobbin winder lever downward until wheel contacts the
drive belt and start machine. After bobbin is filled with thread, an
automatic release will cause the wheel to disengage from the belt and
winding will stop. Cut thread and remove bobbin from winder spindle.
An adjustment screw on the bobbin winder throw-out latch can be turned
in or out to increase or decrease the amount of thread wound on the
bobbin.
When fine thread is wound on bobbins, use light tension. It is regulated
by turning the knurled nut on the tension bracket at the rear of the
bobbin winder. Bobbin can be wound while the machine is sewing.
STITCH LENGTH ADJUSTMENT & REVERSING LEVER
The stitch length is changed by turning
serrated nut "M" located behind stitch
regulator lever xintil the desired stitch
length is reached. To reverse sewing action,
lift lever past "O" toward marking "R" on
the plate (Fig. 6) until stopped. Machine
will sew approximately same number of
stitches per inch forward and reverse.
Release of the spring-actuated lever will
automatically return the sewing to forward
direction.
FIG. 6
trniw •••
SEWING PROCEDURE
Turn the handwheel toward you until the needle moves down and up again
to its highest point, thus catching the lower (bobbin) thread. Now ^11
the end of the upper thread you are holding and the bobbin thread will be
brought up with it through the needle hole in the feed dog. Place both
ends of thread back under the presser foot. Place the material to be
sewn beneath the presser foot, lower the foot upon it and then start . •
the machine.
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-7-
TO REMOVE THE WORK
Raise the needle bar to its highest pointy lift the presser foot and draw
the fabric back and to the left* Cut the ends of the threads a few
inches*
REGULATING THE THREAD TENSIONS
For ordinary stitching, the tension on the upper and lower threads should
be equal so as to lock both threads in the center of the material*(Fig*7A)
FIG. 7A
If tbe tension on either thread is stronger than on the other,imperfect
stitching will be the result, if the tension on the upper thread is
greater than that on the lower thread, it will lie straight along the
upper surface of the material (Fig*7B)
FIG. 7B
If the tension on the lower thread is greater than that on the upper
thread, the lower thread will lie straight along the underside of the
material (Fig*7C)
FIG. 7C
A* Tension of the Upper (Needle) Threads
Before adjusting the tension of the upper (needle) thread, be certain
that the presser foot is let down and not in lifted position.
To adjust tension, turn serrated nut "C" on tension device (Fig.l) to the
right to increase tension and to the left if you desire to decrease it.
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-8-
Tension of the Lower (Bobbin) Thread;
The lower (bobbin) thread tension is controlled by the larger screw "N"
(Fig. 4C) near the end of the spring at the outside of the bobbin case.
Turning this screw to the right (clockwise) will increase the thread
tension, while turning it to the left (counter-clockwise) will decrease
it.
HOW TO RE-SET THE SAFETY CLUTCH MECHANISM
The sewing hook and its mechanism are protected by a safety clutch. If it
should become necessary to re-engage the safety clutch, depress button
"T" (Fig. 1) in the bed plate of the machine. At the same time, turn
handwheel until the locking mechanism re-engages the drive shaft beneath
the bed of the machine. Open bed slide plate and rock hanchdieel back and
forth to remove any foreign matter which may have lodged itself in the
hook. Do not use any sharp-edged tools,etc., lest the hook be damaged.
ADJUST-ING LIFT OF THE ALTERNATING PRESSER FEET
The thickness of the material sewn should control the height of the lift
of the alternating presser feet. The lift should be just enough for
clearance of the material. With normal adjustment both feet lift to
equal height. However, some materials may reouire unequal height of lift.
FIG, 8
To alter lift, loosen wing nut (1) Fig. 8 and move the link and stud
assembly (2) along the slot (3) - move up to raise the feeding presser
foot and push down to lower this foot. Tighten wing nut upon completion
of adjustment.
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