JUKI DDL-552-2 User Manual

The simple method to judge the correct position of the moving knife would be to verify if the
step part of the bed and the forked base of the knife are paralled to each other. If they are
parallel, the position is correct.
(Note)
1) No matter how slight the right or left position adjustment may be, it has a big bearing on
the retreating range of the moving knife.
2) Verify if the moving knife disposes the thread properly as shown in Fig.21.
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Fig. 20
Fig. 21
3. How to Install the fixed knife correctly
The correct method of installing the fixed knife is shown in Fig.22. The standard distance from
the center of the needle to the tip of the fixed knife is 4.2mm(5/32"). The tip of the fixed knife
should be 0.6mm above the installing surface. (Fig.23).
When the angle of the installing fixed knife's tip is changed, the cutting power changes. When
the cutting part of the fixed knife and the moving knife is precisely matched, then and only then
the cutting power becomes most powerful. When the fixed knife is to be adjusted or when it is to
be changed, be sure to verify the sharpness of the blade and at the same time, adjust the angle of
installation (Fig.22A).
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From the library of: Superior Sewing Machine & Supply LLC

JUKI DDL-552-2 Specifications

General

Brand	JUKI
Model	DDL-552-2
Category	Sewing Machine
Language	English