TABLE
OF
CONTENTS
(DDL-552-553-555)
Page
Installingthe oil reservoir 2
MotorpuUey and the belt 2
Cautions on operating the machine 3
Lubrication 3
1.
Adjusting
theoil
supply
to the
face
part 4
2. The
oU
adjusting pin 4
3.
Adjusting
theoil
supply
to thehook
components
4
Threading the machine 5
Preparation
of
the bobbin thread 6
Inserting & removing the bobbin case 6
Windingthe bobbin thread 6
How to insert the bobbin 6
The thread tension 7
Adjusting the needle thread tension 7
Thread take-up spring 7
Adjusting the bobbin thread tension 7
Presser foot and feed dog 8
Adjusting the pressure
of
the presser foot 8
The
presser
foot
hand
lifter
8
Height of the feed dog 8
The stitch length 9
Adjusting
the stitch
length
(DDL-552-553)
9
Adjusting
the stitch length
(DDL-555)
9
Reverse
sewing
(DDL-555)
9
Inserting
the
needle
Installing
and
removing
the
sewing
hook
Relation
between
thehookandtlie
needle
Adjusting
the
height
of the
presser
bar
Adjusting
the
amount
ofthe
thread
take-up.
Adjusting
the
pressing
pressure
of the
feed
lever
(DDL-555)
12
(Note)
Due to improvements on the machine, some parts of the operational procedures
of this INSTRUCTION BOOK might be changed without notice.
- 1 -
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