JUKI DDL-552-2 User Manual

CONTENTS
I. GENERAL DESCRIPTION 1
1. Outstanding features I
2. Main specifications 1
II. HOW TO INSTALL THE MACHINE 2
1. Table 2
2. Installing the motor 2
3. Limit of low-speed rotation of the machine 3
4. Length of belt 3
5. Installing the control box 3
6.
Installing the machine head 3
7. Installing the pedal and its adjustment 4
8. Construction and operation of motor lever switch 5
9. Function of the cord 6
10. How to handle the control box and cautions 9
11. Adjusting the clutch gap 10
III. HOW TO OPERATE THE MACHINE 11
1. Caution on operation 11
2.
Lubrication and adjusting the oiling amount 11
3. Trial run of the machine 11
4. How to operate the pedal 12
5. Threading the machine 13
6. Adjusting the thread tension 13
7. Adjusting
the needle stop position after thread trimming 14
8. When low speed sewing is not necessary 15
9. Carefully
note the following points 15
10. How
to select the presser foot, throat plate, sewing hook and feed dog 15
IV. ADJUSTING THE MACHINE 16
1. Adjusting the timing of the thread trimming cam 16
2. Adjusting
the position of the moving knife 17
3. How to install the fixed knife correctly 18
4. The floating range of the second thread tension disc 19
5. How to sharpen the knife blade 20
6. Changing the moving knife 20
7. Adjusting the bobbin thread presser 21
8. Adjusting the slide shaft 22
9. How to install and remove the knife installing base 22
10. Adjusting the installing angle of the synchronizer 23
11. In case of electrical malfunctions 2^
V. DDL-552-2-3 DDL-552-2-4
DDL-553-2-3 DDL-553-2-4
DDL-555-2-3 DDL-555-2-4 25
VI. DDL-555-2-2B DDL-555-2-4B 27
VII. MALFUNCTIONS AND CORRECTIVE MEASURES 28
VIII. CIRCUIT DIAGRAM, TIME CHART 33
IX. DIAGRAM SHOWING METHOD OF ASSEMBLING TABLE 35
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