Corporation Sewing Machine Instruction Manual

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oil felt

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Both the models adopt straight twin-needle and two horizontal hooks with auto lubrication for thread

looping, sliding lever for thread take up to form two lines of lockstitch seam. The upper shaft and lower

shaft is connected by ball bearing and driven by teeth-type synchronic belt; plunge oil pump lubrication

system. They adopt the compound feed mechanics of feed dog, needle bar and presser foot, even if for long

stitch length and long material, They can deal with them freely.

They are widely used in factories of suitcase, tent, cushion, leather goods, apparel, mat, etc..

The difference between the two models:

MSK-8420B adopts twin-needle, two large horizontal hooks with auto lubrication. With the parts it can

form ten different needle gauges.

MSK-8400B adopts single needle and form single line double lockstitch form.

1. Brief introduct oni

1 Application: medium and heavy duty materials

2 Max. sewing speed: 2000 spm

3 Max. Stitch length : 9 mm

4 Needle bar stroke: 36 mm

5 Presser foot lift height: 8mm(by hand); 16mm(by knee)

6 Hook: large horizontal hook with auto lubrication

7 Needle: DP 17 Nm125~180

8 Lubrication: pump auto lubrication (partial of manually oiling)

9 Needle gauge: (Twin-needle) 6.4, 3.2, 4, 4.8, 8, 9.5, 12.7, 16, 19, 25.4

10 Motor power: 0.37 kw (clutch motor)

2. Main Technical Specification

3.1 Installation

3.1.1 Location of the machine

To ensure a smooth running, the machine should

be located on rigid and flat floor. The insert of

rubber mat between machine stand and floor is

recommended for further reducing the running noise

and vibration.

3.1.2 Oil Reservoir Installation(Fig.1)

Put the oil reservoir into the table cutout, and

place the four cushions on the four corners of the

cutout, and place oil felt into the oil reservoir.

3.1.3 Mounting machine head(Fig.2)

Make the hinge A of machine head engaged with

hinge socket B on the table, then turn the machine

head freely till it is seated on the frame of table

cutout.

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3. Installation and preparation