-CONTENTS-
PREPARATION
FOR
OPERATION
m Power cable
connection
1
m
Connection
of
control
box
2
m Adjustment of needle bar stop position 2
CAUTIONS
ON
USE
m Oiling (1) 3
S Oiling (2) 3
[31 Oilingcondition 4
[4] Adjustment of oiling to rotating hook 4
Cautions on operation 4
OPERATION
Installation of needles 5
Winding
of bobbin thread 5
Selection of
thread
6
Threading of needle threads 6
Adjustment of stitch length and stitch reversing(touch-back) 7
Setting of bobbin 7
Threadingof bobbin threads 8
Tension adjustment of bobbin threads 8
Balance of
thread
tension
8
Needle
thread
tension
8
Adjustment of presser foot pressure 8
Timing between rotating hook motion and needle motion
9,10
Adjustment of feed dog height 11
Relationship between rotating hook motion and take-up lever motion 12
Relationship between hook motion and opener motion 12
Relationship between needle motion and feed dog motion 13,14
Needle bar (left or right) stop operation {LT2-250) 15
Relationshipbetweenangleof corner stitching and stitch length 15
Installation
of movable knife 16
Adjustment of thread trimmer cam 17
Adjustment
of
thread
tension
regulator
18
Adjustment
of
meshing
pressure
of
movable
knife
and
fixed
knife
19
Sharpening of fixed knife 19
Adjustment for changeof needle gage 20
Wiper
adjustment
21
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25.
ADJUSTMENT
AND
OPERATION
OF
CONTROL
UNIT
m "1-2 POSITION" select switch operations 22
m
Pedal
operation 22
m
Adjusting
the
pedaling
forces
22
m
Adjusting
the
stitching
speed
23
fSl Optional functions 24, 25
CAUTION
26,
27
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