Brother Cleaning and Maintenance Instructions for Your Sewing Machine
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8. CLEANING AND MAINTENANCE

8. CLEANING AND MAINTENANCE

CAUTION

Turn off the power switch before starting any cleaning work, otherwise the machine may operate if the start switch is pressed by mistake, which could result in injury.

Be sure to wear protective goggles and gloves when handling the lubricating oil and grease, so that they do not get into your eyes or onto your skin, otherwise inflammation can result.

Furthermore, do not drink the oil or eat the grease under any circumstances, as they can cause vomiting and diarrhoea.

Keep the oil out of the reach of children.

8-1. Cleaning

If using an air gun, do not use it while the machine head is tilted back, otherwise oil and thread scraps may adhere to the cutter sensor and timing belt, resulting in operating problems.

0848Q

0849Q

 

 

1.Turn off the power.

2.Turn the air cock to stop the air.

*Turn the knob to release the air.

3.Remove any thread scraps and dust, etc. from the thread paths for the needle thread, looper thread and gimp. In particular, the looper thread path should be cleaned every day to keep it free from thread scraps and dust.

4.Check the oil level by looking at the sight glass. If the oil level is low, replenish the oil supply.

5.Remove and discard any oil that has collected in the oil container.

6.Check the air filter and remove any water that has collected in the drain. (Refer to the illustration below.)

8-2. Draining the oil

8-3. Checking the air filter

(1) 1190Q

1.When the oil container (1) is full of oil, remove the oil

container (1) and let the oil drain out.

Note: Clean up any oil that may have been spilt onto the floor.

(1)

(2)

0946Q

1.Close the air cock (1).

2.Turn the screw (2) to release any air and water in the drain.

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RH-9800

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Contents DH4-B980 RH-9800 Safety Instructions Safety indications and their meaningsInstallation Environmental requirementsCleaning Maintenance and inspectionSewing Needle bar guard Contents Names of Each Part Specifications SpecificationsInstallation Table processing diagramInstalling the motor Installing the machine headInstalling the oil container Raising the machine headLowering the machine head Installing the spool stand Tightening the V-beltInstalling the control box Installing the air unit and the valve assemblyConnecting the knife valve cables Connecting the ground wires and the wirings Connecting the air tubes Installing the air hoses Adjusting the air pressureTo increase the air pressure To decrease the air pressureConnecting the power cord Lubrication Adding oilLubrication Filling the arm oil tank1116Q 0862Q 1117Q Initializing settings Correct USEChanging the lower thread and gimp trimming Checking the direction of machine operation Installing the needle Threading the upper threadFor upper thread trimming specifications For upper and lower thread trimming specifications -01,-02Threading the lower thread Setting the material Threading the gimpPanel button and switch names Operation panel part namesFront panel part name Changing the mode Selecting a program numberChanging the cutting timing Setting a program Setting the shape of the eyelet Setting the buttonhole lengthSetting the tacking length Setting the offsetSetting the cutting space Setting the knife position compensationP1. Setting X correction P2. Setting Y correctionP3. Setting θ 1 correction P4. Setting θ 2 correction Using the memory switch OFFOn Low speed List of error codes Using the Emergency Stop switch Automatic modeManual mode or in automatic mode Sewing1164Q 1165Q Adjusting the thread tension Tension adjustmentStroke adjustment Upper thread tensionNeedle and knife position Explanation of the cutting space functionRelationship between knife position and eyelet shape Knife position compensation function Using the production counter Resetting the production counterDisplaying the production counter Counting down to zero methodUsing a cycle program Programming procedureSetting the feed bracket to the front position Using feed mode Using manual mode Setting the number of home position cycles Changing the cycle program counterReturning to the home position Cleaning and Maintenance Draining the oilStandard Adjustments Adjusting the height of the spreader and looperSpreader height Looper heightAdjusting the needle and looper timing Adjusting the loop stroke Adjusting the height of the needle bar Adjusting the clearance between the looper and needleAdjusting the needle guard Adjusting the spreader mounting positionsAdjusting the spreader timing Adjusting the needle racking width stitch widthChanging in the cutting block operation time Filing the cutting surface of the cutting block Adjusting the cutting pressure Replacing the knifeAdjusting the cloth opening amount Measuring the opening amountAdjusting the trimming of the upper thread Adjusting the trimming of the lower thread and gimpAdjusting the gimp length after trimming Lower thread presser Sub presserSummary of DIP Switches Front panel DIP switchesCircuit board DIP switches Troubleshooting Problem Cause Remedy Thread breaksSkipped stitches occur Needle breaksProblem CleanlyRemedy Upper thread is not cut Lower thread is not cut15-1, Naeshiro-cho, Mizuho-ku, Nagoya 467-8561, Japan. Phone

DH4-B980 specifications

The Brother DH4-B980 is an innovative and advanced sewing and embroidery machine designed for both professional use and home enthusiasts. Recognized for its robust performance and user-friendly features, the DH4-B980 stands out in the market.

One of the primary features of the Brother DH4-B980 is its impressive sewing speed, allowing users to achieve up to 1,000 stitches per minute. This heightened efficiency is complemented by a range of built-in stitches, offering over 150 different stitch options, including decorative, quilting, and utility stitches. This variety equips users with the creativity to tackle a broad spectrum of sewing projects, from simple alterations to intricate embroidery designs.

The Brother DH4-B980 also features advanced embroidery capabilities. With an expansive embroidery area of 10 x 6 inches, users can work on larger designs without the need for rehooping. Additionally, the machine comes with pre-installed embroidery designs and fonts, ensuring that users have a multitude of options right at their fingertips. The user-friendly LCD touchscreen display allows for easy navigation through features, adjustments, and design selections, making the embroidery process intuitive.

In terms of technology, the Brother DH4-B980 incorporates the advanced My Custom Stitch feature, enabling users to create personalized stitch patterns. This functionality sets the machine apart, as it allows for customization to fit specific project needs or personal styles. The machine is also equipped with automatic needle threading and a quick-set drop-in bobbin, adding to overall convenience and ease of use.

Another noteworthy aspect is the built-in sewing assistant, providing tips and settings based on the selected stitch type. This feature enhances the learning curve for beginners while catering to the needs of more experienced sewists. The machine’s high-quality LED lighting illuminates the workspace, ensuring clarity and precision in sewing, particularly in low-light conditions.

Durability is achieved through quality construction and materials, ensuring that the actual performance matches user expectations even after extensive use. The Brother DH4-B980 is also designed with versatility in mind, catering to quilters, fashion designers, and hobbyists alike.

In summary, the Brother DH4-B980 combines speed, versatility, and advanced technology in a single sewing and embroidery machine. Its user-friendly features and innovative capabilities make it an excellent choice for anyone looking to elevate their sewing experience.
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