4
CHAPTER 1
NAMES OF PARTS AND THEIR FUNCTIONS
L
Presser foot lifting lever
M
Stitch length adjustment dial
N
Main power and light switch
O
Foot controller inlet
P
Handwheel
Q
Differential feed ratio adjustment dial
R
Needle clamp screw
S
Needles
t
Upper knife
U
Needle plate
V
Presser foot
W
Stitch width adjustment dial
X
Stitch switching lever
Y
Knife lock lever
Z
Two-thread-switching plate
[
Upper looper
\
Lower looper
]
Upper looper thread insertion hole
^
Lower looper thread insertion hole
a
Air threading pushbotton
b
Air threading switching lever
* Air openings (6 places)
1
Thread tree
2
Telescoping thread
3
Presser foot pressure adjustment screw
4
Spool pin
5
Spool cushion
6
Spool support
7
Thread cutter
8
Needle threader change switch
9
Needle threader lever
0
Material plate cover
A
Thread guide
B
Lower looper thread tension dial
C
Upper looper thread tension dial
D
Right needle thread tension dial
E
Left needle thread tension dial
F
Thread take-up cover
G
Front cover
H
Seam allowance guide
I
Knife cover
J
Error indicator LED
K
LED lamp (inside the lamp cover)
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