Necchi Q421A Instruction Manual
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Necchi Q421A Instruction Manual

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Q421A

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Summary of Contents for Necchi Q421A

  • Page 1 Instruction Manual Q421A...
  • Page 3 Important safety instructions When using an electrical appliance, basic safety should always be followed, including the following: Read all instructions before using this sewing machine. DANGER - To reduce the risk of electric shock: 1. An appliance should never be left unattended when plugged in. 2.
  • Page 4 14. Never place anything on the pedal. 15. Never use the machine if the air vents are blocked, keep the air vents of the machine and the foot pedal free from dust, fusel and leftovers. 16. The machine must only be used with designated foot controller, in order to avoid a hazard.

  • Page 5: Table Of Contents

    Contents Machine Introduction Principal parts of the machine ....................2 Accessories ..........................3 Standard ..............................3 Optional ..............................3 Connecting machine to power source ................... 4 Polarized plug information ........................4 Foot control ............................4 Machine Setup Sewing table ..........................6 Two-step presser foot lifter ....................
  • Page 6 Zigzag stretch stitch ..........................29 Sewing stretch fabrics and elastic tape ................30 Overcasting stitch ........................31 Blind Hem ..........................32 4-Step Buttonhole stitch ....................... 33 Making a buttonhole on stretch fabrics ....................34 Left and right side balance for buttonhole ................... 34 Button sewing ........................

  • Page 7: Machine Introduction

    Machine Introduction...

  • Page 8: Principal Parts Of The Machine

    Principal parts of the machine 1. Tension dial (page 18) 2. Take-up lever 3. Reverse sewing lever (page 25) 4. Thread cutter (page 24) 5. Sewing table and accessory box (page 6) 6. Stitch width dial (page 20) 7. Bobbin winder stopper (page 8) 8.

  • Page 9: Accessories

    Accessories Accessories are stored inside the accessory box. v Standard 1. All purpose foot (already installed) 2. Zipper foot 3. Buttonhole foot 4. Button sewing foot 5. Seam ripper/brush 6. Edge/quilting guide 7. Pack of Needle: 3x single needles (80/11,90/14,100/16) 8.

  • Page 10: Connecting Machine To Power Source

    Connecting machine to power source Attention Always make sure that the machine is unplugged from power source and the main switch is off ("O"), when the machine is not in use and before inserting or removing parts. Before connecting the power supply, make sure that the voltage shown on the rating plate is conforming with your main power.

  • Page 11: Machine Setup

    Machine Setup...

  • Page 12: Sewing Table

    Sewing table Hold the sewing table horizontally, then pull toward the left to remove it from the machine. Attach the sewing table, and then push it to the right. The inside space of the sewing table is used as an accessory box. v Free arm Free-arm sewing is convenient for sewing tubular areas such as pant hems and cuffs.

  • Page 13: Installing The Extension Table

    Installing the extension table Pull the sewing table and accessory box off by sliding it to the left. Follow the arrow, and stretch the foot of the extension table. Snap (A) of the extension table into (B) of the machine. Adjust presser foot pressure The presser foot pressure of the machine has been pre-set and requires no particular...

  • Page 14: Winding The Bobbin

    Winding the bobbin Please following the number order and see the corresponding illustrations below. 1. Place the thread and spool holder onto the spool pin. For better sewing quality, choose a proper size of the spool holder for the thread and attach it next to the spool.
  • Page 15 6. Hold the thread tail securely in one hand. 7. Step on the foot control to start winding the bobbin. 8. After the bobbin has wound a few rounds, stop the machine and cut the thread near the bobbin until it is full. Once the bobbin is full, it rotates slowly.

  • Page 16: Inserting The Bobbin

    Inserting the bobbin Attention Turn the power switch to off ("O"). When inserting or removing the bobbin, the needle and the presser foot must be fully raised. Open the bobbin cover by pushing the release button to the right. Release button Insert the bobbin in the bobbin case with the thread running in a counter-clockwise direction (arrow).

  • Page 17: Threading The Upper Thread

    Threading the upper thread Please follow the number order and see the corresponding illustrations below. It is important to carry out the threading correctly to get sewing quality. Otherwise several problems will occur. Attention Turn the power switch to off ("O"). 1.
  • Page 18 4. Draw the thread from the spool and place the thread in between the upper thread guide. 5. Guide the thread ahead and pull the thread through the pre-tension spring as illustrated. 6. Continue to guide the thread into the silver discs to keep the thread in proper tension.

  • Page 19: Using The Needle Threader (Depends On Models)

    Using the needle threader (depends on models) Attention Turn the power switch to off ("O"). Lower the presser foot lifter. Raise the needle to its hightest position by turning the handwheel toward you until the mark matched with the line on the machine. Mark Line on the machine Press down the needle threader for a certain...

  • Page 20: Replacing The Needle

    Replacing the needle Change the needle regularly, especially when it shows signs of wear or if it causes problems. Attention Turn the power switch to off ("O") when carrying out below operations! Turn the handwheel toward you to raise the needle then loosen the needle clamp screw to remove the needle.

  • Page 21: Matching Needle/Fabric/Thread

    Matching needle/fabric/thread NEEDLE SIZE FABRICS THREAD 65/9-75/11 Lightweight fabrics- Light-duty thread in cotton, nylon, polyester or cotton wrapped thin cottons, voile, serge, silk, muslin, polyester. Qiana, interlocks, cotton knits, tricot, jerseys, crepes, woven polyester, shirt & blouse fabrics. 80/12 Medium weight fabrics- Most threads sold are medium size and suitable for these fabrics cotton, satin, kettleclote, sailcloth,...

  • Page 22: Changing The Presser Foot

    Changing the presser foot Attention Turn the power switch to off ("O") when carrying out any of the operations below! v Remove the presser foot Raise the presser foot lifter. Press the back lever to release the presser foot. Lever v Attach the presser foot Lower the presser foot lifter until the cut-out meets the pin.

  • Page 23: To Raise Or Drop The Feed Dogs

    To raise or drop the feed dogs The drop feed lever can be seen on the base at the rear side of the sewing machine. Sliding the drop feed lever to lower or raise the feed dogs. When lever is in raised position, the feed dog will arise automatically when you are sewing.

  • Page 24: Thread Tension

    Thread tension Proper tension setting is important for sewing. There is no single tension setting appropriate for all the stitch functions and fabrics. Basic thread tension setting: "4". Normal thread tension for straight stitch sewing. Upper thread Bobbin thread Surface Wrong side Thread tension is too loose for straight stitch sewing.

  • Page 25: Sewing Basics

    Sewing Basics...

  • Page 26: How To Choose Your Pattern

    How to choose your pattern To select a stitch, simply turn the pattern selector dial. The pattern selector dial may be turned in either direction. For straight stitch, select pattern " " with the pattern selector dial. For zigzag stitch, select pattern " "...

  • Page 27: Straight Stitch

    Straight stitch Using the all purpose foot. v Adjusting the stitch length Turn the stitch length dial, and the length of the individual stitches will decrease as the dial approaches "0". The length of the individual stitches will increase as the dial approaches "4".

  • Page 28: Zigzag Stitch

    Zigzag stitch Using the all purpose foot. v Adjusting the stitch length The density of zigzag stitches increase as the setting of stitch length approaches "0". Neat zig-zag stitches are usually achieved at "2.5" or below. Closed up zigzag stitches (close together) are referred to as a satin stitch.

  • Page 29: Starting To Sew

    Starting to sew Make sure you follow the needle/fabric/thread combinations (Page 16) and use the suggested presser foot before sewing. 1. Turn the power switch to on ("I"). 2. Turn the handwheel towards you (counter- clockwise) to bring the needle to highest position.
  • Page 30 7. Slowly press down the foot control to start sewing. Release the foot control to stop the machine. Note You can use reverse sewing for back tacking and reinforcing seams by pressing the reverse sewing lever. Please refer to "Useful skills" chapter (Page 25) for more information.

  • Page 31: Useful Skills

    Useful skills Various ways to achieve better results for your sewing projects are described below. Refer to these tips when sewing your project. The results depend on types of fabrics and stitches. Please use the same fabric of the project and do a sewing test in advance.

  • Page 32: Sewing Corners

    v Sewing corners Stop the sewing machine when you reach a corner. Lower the needle into the fabric. Raise the presser foot. Use the needle as a pivot and turn the fabric 90°. Lower the presser foot and resume sewing. v Sewing stretch fabrics Baste the pieces of fabric together, and then sew without stretching the fabric.

  • Page 33: Sewing Heavy Fabric

    v Sewing heavy fabric The black button on the right side of the presser foot will lock the presser foot in a horizontal position if you push it in before lowering the presser foot. This ensures even feeding at the beginning of a seam and helps when sewing multiple layers of fabric such as sewing over seams when hemming jeans.

  • Page 34: Utility Stitches

    Utility Stitches...

  • Page 35: Stretch Stitch

    Stretch stitch Use this stitch with knitted tricot or other stretchy fabrics. The stitch enables your seam to stretch without breaking the thread. Good for easy to ravel and knit fabrics. It’s good for joining durable fabric such as denims. These stitches can also be used as a decorative top stitches.

  • Page 36: Sewing Stretch Fabrics And Elastic Tape

    Sewing stretch fabrics and elastic tape dimensions will be that of the stretched elastic tape. Therefore, it is necessary that a suitable length of the elastic tape be used. Using the all purpose foot. 2.5~5 Pin the elastic tape to the wrong side of fabric at a few points to make sure that the tape is uniformly positioned on the fabric.

  • Page 37: Overcasting Stitch

    Overcasting stitch Sewing overcasting stitches along the edge of fabric to prevent it from fraying. Using the all purpose foot. Sewing the overcasting along the edge of the fabric so that the needle drops over the edge of the fabric on the right side. Needle drop point...

  • Page 38: Blind Hem

    Blind Hem Secure the bottom of skirts and pants with a blind hem, this stitch will sew with invisible stitch on the right side of the fabric. Using the all purpose foot. Blind hem for stretch fabrics. Note Please use the same fabric of the project and do a sewing test in advance.

  • Page 39: 4-Step Buttonhole Stitch

    4-Step Buttonhole stitch Buttonholes can be adapted to the size of the button. For stretch fabric or thin fabric, it is recommended to use a stabilizer for a better buttonhole sewing. Slightly reduce upper thread tension to produce better results. Using the buttonhole foot.

  • Page 40: Making A Buttonhole On Stretch Fabrics

    v Making a buttonhole on stretch fabrics When sewing buttonholes on stretch fabric, hook heavy thread or cord under the buttonhole foot. Attach the buttonhole foot. Bring the two gimp thread ends to the front of the foot and insert them into the grooves, then tie them there temporarily.

  • Page 41: Button Sewing

    Button sewing Buttons can be sewn on with the sewing machine. Buttons with 2 or 4 holes can be attached. Using the button sewing foot. Move the drop feed lever to lower the feed dogs. Lowered position Put the work under the foot and place the button in desired position, then lower the foot.

  • Page 42: Zipper Insertion

    Zipper insertion This foot can be set to sew on each side of the zipper, the edge of the foot guides the zipper to ensure straight placement. Using the zipper foot. 1.5~3 Attention Zipper foot should be used for sewing straight stitches only.

  • Page 43: Inserting A Side Zipper

    Stitching around the zipper. Remove the basting and press. v Inserting a side zipper Place the right sides of the fabric together. Sew a bottom seam 2cm from the right edge of the zipper bottom stop position. Sew few length to maximum, set the tension below 2 and baste the remaining length of the fabric.

  • Page 44: Gathering

    Turn the fabric right side out. Attach the left pin for sewing the rightside of the zipper. Stitch across the lower end and the right side of the zipper. Lower end Stop the machine about 5cm from the top of the zipper.

  • Page 45: Smocking

    Smocking The decorative stitch created by stitching or embroidering over gathers is called "smocking". It is used to decorate the front of blouses or cuffs. The smocking stitch adds texture and elasticity to the fabric. Using the all purpose foot. Increase the stitch length to maximum, set the tension below 2 and basting lines 1cm across the area to be smocked.

  • Page 46: Free Motion Darning, Embroidery And Monogramming

    Free motion darning, embroidery and monogramming v Preparation for embroidering and monogramming * Embroidery hoop is not included with the machine. Move the drop feed lever to lower the feed dogs. Lowered position Remove the presser foot and the presser foot holder.

  • Page 47: Darning

    v Darning First sew around the edges of the hole to secure the threads. Working from left to right, sew over the hole in a constant and continuous movement. stitching moving the work slower over the hole to separate the threads and not form big gaps between the threads.

  • Page 48: Quilting

    Quilting Sandwich batting between the top and bottom layers of fabric is call "Quilting". The top layer is usually formed by multiple geometrically shaped pieces of materials joined together. Using the all purpose foot with edge/quilting guide. v Using the edge/quilting guide Attach the edge/quilting guide in the presser foot holder as illustrated and set the space as you desire.

  • Page 49: Non-Stick Foot

    Using the all purpose foot. v Patchwork stitching Place the two fabrics, right sides together and sew using a straight stitch. Wrong side Working on the right side of the fabric, place the center of the presser foot on the seam line of the joined fabrics and stitch over the seam.

  • Page 50: Applique

    Applique You can create and applique by cutting a different piece of fabric into a shape and using it as a decoration. Using the all purpose foot. 3.5~5 Cut out the applique design and baste it on the fabric. Sew slowly around the edge of the design.

  • Page 51: Scallop Stitch

    Scallop stitch The wave-shaped repeating pattern, that looks like shells, is called "scalloping". It is used to decorate the collar of blouses and the edges of knitting projects. Using the all purpose foot. v Scallop edging Stitch along the edge of the fabric, making sure not to sew directly on the edge of the fabric.

  • Page 52: Twin Needle

    Twin needle Using the all purpose foot. Attention 2.5~3 If the machine have no stitch width dial, only can use the straight stitch of the center needle position, the twin needle may bend or break if the wrong stitch pattern is used. Carefully turn the handwheel to check that the twin needle enters the stitch hole without touching or even striking the stitch...

  • Page 53: Maintenance And Trouble Shooting Maintenance

    Maintenance and Trouble shooting...

  • Page 54: Clean The Machine Surface

    Maintenance Attention Disconnect the power cord from the wall socket before carrying out any maintenance, otherwise injury or electrical shock may result. v Clean the machine surface If the surface of the sewing machine is dirty, lightly soak a cloth in mild detergent, squeeze cleaning it once in this way, wipe the surface again with a dry cloth.

  • Page 55: Trouble Shooting Guide

    Trouble shooting guide Before calling for service, check below trouble shooting guides in advance, if problem still exist, please contact nearest dealer or local service center. Problem Cause Correction Reference 1. The machine is not threaded 1. Rethread the upper thread. correctly.
  • Page 56 Problem Cause Correction Reference 1. The machine is not correctly 1. Check the threading and threaded. rethread. 2. The bobbin case is not 2. Thread the bobbin case as Loose threaded correctly. illustrated. stitches 3. Needle/fabric/thread 3. The needle size must suit the combination is wrong.
  • Page 57 Problem Cause Correction Reference 1. The machine is not turned on. 1. Turn on the machine. The sewing machine 2. The presser foot lifter is raised. 2. Lower the presser foot lifter. doesn't 3. The machine is not plugged in. 3. Connect the power cord to the operate electric outlet.
  • Page 60 Do not dispose of electrical appliances as unsorted municipal waste, use separate collection facilities. Contact your local government for information regarding the collection systems available. into the groundwater and get into the food chain, damaging your health and well-being. When replacing old appliances with new ones, the retailer is legally obligated to take back your old appliance for disposal at least for free of charge.

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