Reliable MSK-8420B instruction manual Machine Adjustment

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4.3.5 Placing bobbin (Fig.18)

Note: when bobbin is placed into the bobbin case, the thread should be wound properly in the correct direction shown in the figure.

4.3.6Drawing thread from the bobbin (Fig.19)

a.Draw the thread end to Bobbin Slot (1) shown in the figure, and pull it out down through the inner bobbin stop piece.

b.Hold the thread with left hand , turn the balance wheel slowly and get the bobbin thread, then draw them a little apart from the presser foot.

18

thread

sliding plate

hook

hook

sliding plate

1

thread

19

 

 

2

1

 

thread

 

 

inner stop piece

 

 

5. Machine Adjustment

5.1 Thread tension adjustment

All forms of stitches are shown in Fig.20.

The normal stitch of sewing machine is shown as Fig.(A) If stitch is abnormal , the puckering and thread breakage will occur, and the needle thread tension and bobbin thread tension should be adjusted so that the normal stitch can be obtained.

A

Normal

B

20

C

a. If the stitch seam shows as Fig. 20B, indicates that the needle thread or bobbin thread tension is too loose , then turn the thread tension screw counter-clockwise to release the needle thread pressure; or turn the adjusting screw with a screwdriver to increase the bobbin thread ten- sion.( see Fig.20,22 )

21

loosen

tension adjusting screw

tighten

-7-

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Contents MSK-8400B MSK-8420B Contents Parts manual Brief introduction Page 20¡« Oil mark Operation Detail chart Machine Adjustment Needle thread tension Increase Reduce Upper feed adjustment Presser foot lift volume adjustment Parts Manual MSK-8420B Arm Parts Pcs MSK-8420B Arm Parts Part number Description Pcs MSK-8400B Arm Parts Thread take-up lever guard MSK-8400B Arm Parts Oil retainer Upper Shaft Presser Foot Parts Pcs Upper Shaft Presser Foot Parts Nut MSK-8420B Needle Bar And Lower Feed Parts Oil wick MSK-8420B Needle Bar And Lower Feed Parts Bushing for needle bar motion shaft MSK-8400B Needle Bar And Lower Feed Parts Thread guide ring MSK-8400B Needle Bar And Lower Feed Parts MSK-8400B Needle Bar And Lower Feed Parts MSK-8420B Rock Shaft And Thread Looping Parts Right hook saddle £-33£ Rock shaft MSK-8400B Rock Shaft And Thread Looping Parts 1WF2-063 Right hook saddle 1WF2-060 Screw 1WF2-059 MSK-8400B Rock Shaft And Thread Looping Parts Part number Description Pcs Stitch Length Adjusting Parts Part number Description Presser Foot Lift Parts Knee control crank assembly Presser Foot Lift Parts Presser Foot Lift Parts Lubrication Parts MSK-8420B Lubrication Parts Lubrication Parts 1WF6-031 Oil pipe clamp 1WF6-029 MSK-8400B Lubrication Parts MSK-8400B Lubrication Parts MSK-8400B Lubrication Parts MSK-8400B Lubrication Parts Accessories Accessories

MSK-8420B specifications

The Reliable MSK-8420B is an advanced multi-functional sewing machine designed for professional sewers and manufacturers who demand precision and efficiency in their stitching operations. This machine stands out in the market due to its robust construction, cutting-edge technology, and a wide array of features that cater to a variety of sewing applications.

One of the primary features of the MSK-8420B is its powerful motor which ensures high-speed sewing, capable of reaching speeds of up to 5,000 stitches per minute. This capability allows users to complete projects quickly without compromising on stitch quality. Moreover, the machine is equipped with an automated lubrication system, which reduces maintenance time and prolongs the machine's lifespan.

The MSK-8420B utilizes advanced computer-controlled technology, offering programmable sewing patterns and customization options. Users can save frequently used patterns, allowing for swift transitions between different sewing tasks. The machine's intuitive interface also makes it user-friendly, accommodating both seasoned professionals and new users alike.

Another significant characteristic of the MSK-8420B is its capability to handle various fabrics with ease, from delicate materials like silk to heavy-duty fabrics like denim and leather. This versatility is enhanced by the machine's adjustable presser foot pressure and stitch length settings, which provide control over the sewing process.

The MSK-8420B is designed with safety in mind, featuring an automatic thread cutter that minimizes thread waste and ensures clean finishes. Additionally, it includes an emergency stop button, enhancing user safety during operation.

Connectivity is also a highlight of the MSK-8420B, as it can be integrated with other industrial sewing equipment, facilitating an efficient workflow in high-demand production environments. The machine is also compatible with various sewing accessories, broadening its functionality and appeal to a wider audience.

In summary, the Reliable MSK-8420B combines high-speed performance, advanced technology, and versatility, making it an indispensable tool for sewing professionals. Its features not only enhance productivity but also ensure that users achieve high-quality results across a range of sewing projects. Whether for garment production or specialized textile applications, the MSK-8420B stands as a testament to Reliable's commitment to excellence in the sewing industry.
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