Brother rh-918a manual Sewing

Page 4

CAUTION

Sewing

This sewing machine should only be used by

If using a work table which has casters, the

operators who have received the necessary

casters should be secured in such a way so that

training in safe use beforehand.

they cannot move.

The sewing machine should not be used for any

Attach all safety devices before using the sewing

applications other than sewing.

machine. If the machine is used without these

Be sure to wear protective goggles when using the

devices attached, injury may result.

Do not touch any of the moving parts or press any

machine.

objects against the machine while sewing, as this

If goggles are not worn, there is the danger that if

may result in personal injury or damage to the

a needle breaks, parts of the broken needle may

machine.

enter your eyes and injury may result.

If an error occurs in machine operation, or if abnormal

Turn off the power switch at the following times,

noises or smells are noticed, immediately turn off the

otherwise the machine may operate if the start

power switch. Then contact your nearest Brother

switch is pressed by mistake, which could result in

dealer or a qualified technician.

injury.

If the machine develops a problem, contact your

When threading the needle

When replacing the needle

nearest Brother dealer or a qualified technician.

When not using the machine and when leaving

 

the machine unattended

 

Cleaning

Turn off the power switch before carrying out

Be sure to wear protective goggles and gloves

cleaning, otherwise the machine may operate if

when handling the lubricating oil and grease, so

the start switch is pressed by mistake, which could

that they do not get into your eyes or onto your

result in injury.

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.

Maintenance and inspection

Maintenance and inspection of the sewing

If the power switch and air need to be left on when

machine should only be carried out by a qualified

carrying out some adjustment, be extremely

technician.

careful to observe all safety precautions.

Ask your Brother dealer or a qualified electrician to

Use only the proper replacement parts as

carry out any maintenance and inspection of the

specified by Brother.

electrical system.

If any safety devices have been removed, be

 

Turn off the power switch and disconnect the

absolutely sure to re-install them to their original

power cord from the wall outlet at the following

positions and check that they operate correctly

times, otherwise the machine may operate if the

before using the machine.

start switch is pressed by mistake, which could

Any problems in machine operation which result

result in injury.

from unauthorized modifications to the machine

When carrying out inspection, adjustment and

will not be covered by the warranty.

maintenance

 

When replacing consumable parts such as the

 

loopers and knife

 

Disconnect the air hoses from the air supply and

 

wait for the needle on the pressure gauge to drop

 

to “0” before carrying out inspection, adjustment

 

and repair of any parts which use the pneumatic

 

equipment.

 

 

 

iii

RH-981A

Page 3 Page 5
Image 4
Page 3 Page 5
Contents RH-981A Symbols Safety InstructionsIndications Environmental requirements Sewing 3122Q Contents Changing Functions Using Fly indexer -52 specifications Names of Each PartSpecifications SpecificationsFly indexer specifications -52 specifications Optional parts Sewing shapePD-9810, Programmer Replacement parts list for specification changes SpecificationsInstallation Table processing diagramInstalling the motor Installing the motor pulley Installing the control boxInstalling the machine head Raising the machine head Lowering the machine headInstalling the oil container Installing the operation panelTightening the V-belt Installing the spool stand Installing the hand switchInstalling the air unit and the valve unit Connecting the valve cablesConnecting the wiring Connections inside the control box P18 PanelConnecting the motor cables Connecting the air tubesSecuring the cables Installing the air tubes Adjusting the air pressureTo increase the air pressure To decrease the air pressureConnecting the power cord Installing the programmer sold separately Installing the foot switch optionInstalling the indexer option Installing the indexer main unitInstalling the valve unit Installing the upper thread presserReplacing the plate presser and presser plate Connecting the connectors Securing the air tubes and cables Installing the hand switch Lubrication Adding oilLubrication Filling the arm oil tankOiling the looper, spreader and looper base Removing the work clamp platesData initialization Correct USEChanging the lower thread and gimp trimming Installing the needle Threading the upper threadFor upper and lower thread trimming specifications -01, -02 For upper thread trimming specificationsThreading the lower thread Threading the gimp 02,-5200, -01, -02 specifications Setting the materialSpecifications When set to the left setting position Cloth setting positionHorizontal setting position Standard specification Installation positionLarge size specification Replacing the PROMs Operation Name and function of each operation panel itemStarting up Program setting method Parameter table Taper barOperation OFF Parameter table Straight bar tacking Operation OFF Cycle program Program memo contents Using the program memosProduction counter Sewing Automatic sewingUsing the Emergency Stop switch Reference values Adjusting the thread tensionUpper thread tension Relationship between knife position and eyelet shape Needle and knife positionExplanation of the cutting space function Setting the feed bracket to the front position Switching between single-pedal and dual-pedal operationUsing test feed mode Using manual mode Changing the mode during an operation Moving the cloth feed bar -52 specificationsCleaning and Maintenance CleaningDraining the oil Checking the air filterStandard 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 the knife cutting length Replacing the hammer Adjusting the contact between the knife and the hammer Adjusting the contact between the knife and the hammerFiling the cutting surface of the hammer Adjusting the cutting pressure Replacing the knifeAdjusting the position of the work clamp plate Adjusting the cloth opening amount Measuring the opening amountAdjusting the trimming of the upper thread Adjusting the trimming of the lower thread and gimpLower thread presser -02, -52 specifications Adjusting the cloth feeding speed -52 specifications Auxiliary clamp arm -02, -52 specificationsAt the time of shipment 3110Q Adjusting the indexer hole spacing -52 specifications Using the set screw collarAdjusting the position of limit switch L -52 specifications Adjusting the position of limit switch R -52 specificationsChanging Functions Using the Memory Switches Memory switch table Changing Functions Using the DIP Switches Panel DIP switchesCircuit board DIP switches Circuit board DIP switch CCircuit board DIP switch D List of Error Codes Errors after power is turned onErrors during operation Hardware errors Troubleshooting Problem Cause Remedy Thread breaksSkipped stitches occur Needle breaksProblem Cause Remedy Upper thread is not cut CleanlyLower thread is not cut Thread slips out118-981

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.

For enhanced stability, the Brother RH-918A comes with a sturdy metal frame, ensuring durability and precision. Its intuitive interface, comfortable handwheel, and adjustable stitch length and width settings add to the overall ease of use, making sewing enjoyable for everyone.

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.
Top Page Image Contents