Brother 2340CV - Manual (Page 4)

Powering the machine
NOTE: (For U.S.A. only)
This foot controller can be used for sewing machine
model 2340CV.
Preparation
• Insert the three-pin plug into the socket on the bottom
right side of the machine. Insertthe power supply plug
into a power outlet.
Main Power and Sewing Light Switch
This switch turns the power and sewing light on or off. To turn
on push toward “ - ” mark. To turn off push toward “O ” mark.
® Main Power and Sewing Light Switch
Operation
When the pedal is pressed lightly, the machine runs at a
low speed. As the pedal is pressed further, the machine
will increase speed. When the pedal is released, the
machine stops.
©Foot Controller: Model KD-1902
Turning direction of motor
The motor and hand wheel of this machine turn in a
counterclockwise direction (direction of arrow). This is
the same direction as an ordinary home sewing ma­
chine.
©Hand wheel
Opening and ciosing the front cover
It is necessary to open the front cover when threading this
machine.
• Open the front cover by sliding it to the right and
guiding the top toward you.
NOTE:
For your safety, make sure that the front cover is closed
when operating the machine.
How to attach and remove the presser foot
CAUTION
Always be sure to turn off the power before
carrying out this operation.
• Turn off the main power switch or disconnect the
electric supply plug.
(1) Raise the presser foot lever. ©
(2) Set the needle to its highest position by turning the
hand wheel (© counter clockwise.
(3) Push the button on the presser foot holder and the
standard foot will be released. (3) @
(4) Raise the presser foot farther by pushing the presser
foot lever upward. Then remove the presser foot and
store it in a safe location.
(5) Again, raise the presser foot farther by pushing the
presser foot lever upward. Then place a presser foot
just under the presser foot holder ® so that the
groove in the bottom of the presser foot holder (g) is
aligned and catches the bar on the top of the foot
© .
Then lower the presser foot lever to attach the foot.
Stitch length
To change the stitch length, .
(1) Locate the stitch length adjustment dial on the left side
of the machine.
(2) Turn the stitch length adjustment dial forward to
lengthen the stitch to a maximum of 4 mm (5/32 inch).
Turn the stitch length adjustment dial backwards to
shorten the stitch length to a minimum of 2 mm (5/64
inch).
(3) The normal stitch length setting is 3 mm to 4 mm
(1/8 to 5/32 inch)
Instructions for the differential feed mechanism
This machine is equipped with two sets of feed dogs
under the presser foot to move the fabric through the
machine. The differential feed controls the movement of
both the front and the rear feed dogs. When set at 1, the
feed dogs are moving at the same speed (ratio of 1).
When the differential feed ratio is set at less than 1, the
front feed dogs move slower than the rear feed dogs,
stretching the fabric as it is sewn. This is effective on
lightweight fabric that may pucker. When the differential
feed ratio is set at greater than 1, the front feed dogs
move faster than the back feed dogs, gathering the fabric
as it is sewn. This function assists in removing the rippling
when serging stretch fabrics.
• To adjust the differential feed.
(1) Locate the differential feed adjustment lever on the left
side of the machine.
(2) The normal setting is 1.0 on the differential feed
adjustment lever.
(3) To set less than 1.0, move the lever back.
(4) To set greater than 1.0, move the lever forward.
Feed ratio Main feed (rear) Differentiai feed (front) Effect Appiication
0.7-1.0 r ; )
o Material is pulled
tight.
Prevents thin mate­
rials from puckering
1.0
( ; ) Without differential
feed. Normal sewing
1 .0-2.0 c~~ ; 3
Material is gath­
ered or pushed
together.
Prevents stretch ma­
terials from stretch­
ing or puckering