—
4
—
5. HOW TO USE THE MACHINE
1)
How to attach needle
Note:
Before making the following adjustment, be sure to
switch off the power source.
Insert the needle up to the bottom of needle clamp and
tighten the screw keeping the long groove side of needle
forward the left
．
Note:
if snapping of thread occurs during back Sewing with
polyester threads
，
it may be avoided by fitting the
needle with the long groove Shifted to the front side
．
Use DB
×
1 or DA
×
1 needle. According to fabric & thread ,please choose the size of needle as follows.
Size of Needle
No. of thread
Fabric
#9
#100 to #80
Extra thin fabric such as de Chin, Georgette, Organdy.etc
#11
#80 to #60
Thin fabric such as Silk, Calico, Poplin. etc.
#14
#60 to #50
General fabrics such as Cotton,Wooden fabric ,etc.
#16
#50 to #30
Thick Cablico,Thick wooden fabric, Water proof cloth, thin leather,ect.
#18
#40 to #20
Thick fabric such as Suiting and Coat material, thin Pouches, Denim , ect.
2) Threading
Raise the thread take-up lever to its highest position and thread the upper thread in the following order.
3) Adjusting of stitch length and reverse
lever
(1) Rotate the drop feed dial while depressing the
reverse lever and then, pressing the push lever,
when making the stitch length shorter.
(2) If the reverse lever is depressed, reverse sewing
(backward sewing) will take place.
Summary of Contents for GC1918 -MDZ
Page 20: ...A ARM BED AND IT S ACCESSORIES 17...
Page 23: ...B NEEDLE BAR AND THREAD TAKE UP MECHANISM 20...
Page 26: ...C FEEDING AND FEED LIFTING MECHANISM 23...
Page 29: ...D STITCH REGULATOR MECHANISM 26...
Page 32: ...E TOP FEED ROCK SHAFT MECHANISM 29...
Page 35: ...F PRESSER FOOT MECHANISM 32...
Page 38: ...G TOP FEED MECHANISM 35...
Page 41: ...H PRESSER FOOT MECHANISM 38...
Page 43: ...I THREAD TRIMMER MECHANISM 40...
Page 46: ...J TOUCH BACK MECHANISM 43...
Page 48: ...K MOTOR MECHANISM 45...
Page 50: ...L OIL LUBRICATION MECHANISM 47...
Page 52: ...M ACCESSORIES 49...
