9. STANDARD ADJUSTMENTS

9. STANDARD ADJUSTMENTS

CAUTION

Maintenance and inspection of the sewing

Disconnect the air hoses from the air supply and

machine should only be carried out by a

wait for the needle on the pressure gauge to

qualified technician.

drop to "0" before carrying out inspection,

Ask your Brother dealer or a qualified electrician

adjustment and repair of any parts which use

the pneumatic equipment.

to carry out any maintenance and inspection of

 

 

the electrical system.

If the power switch and air need to be left on

Turn off the power switch and disconnect the

when carrying out

some adjustment, be

extremely careful

to observe all safety

power cord from the wall outlet at the following

precautions.

 

times, otherwise the machine may operate if the

 

 

 

start switch is pressed by mistake, which could

If any safety devices have been removed, be

result in injury.

absolutely sure to re-install them to their original

When carrying out inspection, adjustment

positions and check that they operate correctly

and maintenance.

before using the machine.

When replacing consumable parts such as

 

 

the loopers and knife.

 

 

9-1. Adjusting the height of the spreader and looper

Spreader height

The clearance between the left spreader (forked spreader) and the eye looper must be set to match the thickness of the lower thread. The clearance between the right spreader and the right looper should be as small as possible while still letting the parts slide.

 

 

 

 

3072Q

 

 

 

 

3071Q

 

 

 

 

 

 

1.The right spreader (1) and left spreader (2) move by means of springs (3). Adjust so that the spreaders move smoothly between the right spreader stopper (4), the left spreader stopper (5) and the LS-holder bracket (6), with no looseness.

2.If adjustment is necessary, loosen the screw (7) and then move the right spreader stopper (4) or left spreader stopper (5) up or down.

Looper height

3073Q

3074Q

1.Set the clearance between the eye looper (8) and the left spreader (2) to the same distance as the thickness of the lower (looper) thread.

2.The clearance between the right looper (9) and the right spreader (1) should be as small as possible.

3.If adjustment is necessary, loosen the screw (10) and then move the eye looper (8) and right looper (9) up or down.

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RH-981A

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Brother rh-918a Standard Adjustments, Adjusting the height of the spreader and looper, Spreader height, Looper height

rh-918a specifications

The Brother RH-918A is a versatile and innovative machine tailored for both personal and professional use. As a robust electronic sewing machine, it combines functionality and user-friendly features that cater to a wide range of sewing enthusiasts, from beginners to advanced users.

One of the standout features of the Brother RH-918A is its extensive stitch selection. With over 100 built-in stitches, including decorative stitches, utility stitches, and heirloom stitches, users have ample options to choose from, allowing for creativity and customization in every project. The machine also incorporates an easy-to-use stitch selector dial, making it simple for sewists to navigate and find the perfect stitch for their needs.

Another key characteristic of the RH-918A is its automatic needle threader. This time-saving feature allows users to thread the needle effortlessly, reducing eye strain and frustration, especially for those who may struggle with manual threading. Additionally, the top-loading bobbin system facilitates quick bobbin changes and ensures smooth feeding, enhancing overall sewing efficiency.

The machine is equipped with a powerful motor that provides consistent and strong stitches, able to handle various fabric types, from lightweight cotton to heavier materials like denim and canvas. This capability is critical for crafting garments, home décor items, and more intricate projects.

The Brother RH-918A also boasts several convenient features to enhance the user experience. An LED light illuminates the sewing area, making it easier to work on detailed projects, particularly in low-light environments. Furthermore, the machine includes multiple presser feet, such as a zipper foot, buttonhole foot, and walking foot, to expand its functionality and accommodate different sewing techniques.

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In summary, the Brother RH-918A combines a wide range of stitches, user-friendly technologies, and robust build quality, making it an excellent choice in the world of sewing machines. Whether for basic repairs or elaborate creations, this machine stands out for its performance and reliability, appealing to a diverse audience of sewing enthusiasts.