kenmore sewing machine 16221 manual

The Kenmore Sewing Machine 16221 is a versatile household sewing machine featuring multiple stitch patterns, automatic needle threading, adjustable stitch length and width, built-in buttonholer, free arm capability, drop-in bobbin system, and variable speed control. This manual provides comprehensive instructions for setup, operation, maintenance, and troubleshooting of your Kenmore 16221 sewing machine.

1. Features at a Glance 2. Installation & Setup 3. First-Time Operation 4. Specifications 5. Controls and Settings 6. Stitch Selection 7. Threading & Bobbin 8. Maintenance & Cleaning 9. Accessories 10. Safety Information 11. Troubleshooting

Features at a Glance

Key components: Sewing machine head, foot pedal, power cord, accessory box, instruction manual.

FeatureDescription
Automatic needle threaderSimplifies threading process
Built-in stitch patternsMultiple decorative and utility stitches
Drop-in bobbin systemEasy bobbin loading and monitoring
Free arm capabilityFor sewing cuffs and tubular items
Adjustable stitch length0-4mm range
Adjustable stitch width0-5mm range
Built-in buttonholerOne-step automatic buttonholes
Variable speed controlFoot pedal with speed adjustment
Reverse stitch leverFor reinforcing stitches
LED work lightIlluminates sewing area

Installation & Setup

Unpack and inspect all components. Place on stable surface at comfortable working height.

  1. Remove machine from packaging and remove all protective materials.
  2. Place machine on sturdy table or sewing cabinet.
  3. Connect foot pedal to machine and plug into power outlet.
  4. Install needle according to markings (flat side to back).
  5. Wind and install bobbin following threading diagram.

WARNING! Keep fingers away from needle area during operation. Always unplug when not in use.

First-Time Operation

Power on machine; follow threading instructions carefully.

  1. Thread upper thread: Follow numbered path on machine.
  2. Use automatic needle threader: Push lever down and hook thread through needle.
  3. Insert bobbin: Drop bobbin into case with thread unwinding counterclockwise.
  4. Bring up bobbin thread: Hold upper thread and turn handwheel toward you.
  5. Select stitch: Turn stitch selection dial to desired pattern.
  6. Test sew: Use scrap fabric to check tension and stitch quality.

CAUTION! Always start with practice fabric. Ensure proper threading to avoid jams.

Specifications

Controls and Settings

Main controls located on front and side of machine.

Front Panel: Stitch selection dial, stitch length dial, stitch width dial, reverse stitch button.

Stitch Length: 0-4mm adjustment for all stitches. Stitch Width: 0-5mm for zigzag and decorative stitches. Tension Control: 0-9 settings (4 for normal sewing). Presser Foot Pressure: Adjustable for different fabrics. Feed Dogs: Lower for free-motion sewing or darning.

Stitch Selection

21 built-in stitches including straight, zigzag, stretch, and decorative patterns.

  1. Straight Stitch: For basic sewing (position 1)
  2. Zigzag Stitch: For finishing edges and appliqué
  3. Blind Hem: For nearly invisible hems
  4. Stretch Stitches: For knit fabrics
  5. Decorative Stitches: Multiple pattern options
  6. Buttonhole: Automatic one-step

Tip: Always test stitch on scrap fabric before sewing project.

Threading & Bobbin

Proper threading essential for good stitch quality.

  1. Raise presser foot and needle to highest position.
  2. Follow numbered threading path on machine.
  3. Use automatic needle threader: Push lever down, hook thread, release.
  4. Wind bobbin: Place thread on spool pin, wrap around tension disk, wind.
  5. Insert bobbin: Drop into case with thread unwinding counterclockwise.
  6. Bring up bobbin thread: Hold upper thread, turn handwheel.

WARNING! Ensure machine is off during threading. Keep fingers clear of needle.

Maintenance & Cleaning

Regular maintenance ensures optimal performance.

  1. Clean lint from bobbin area after each project.
  2. Oil moving parts every 3-6 months with sewing machine oil.
  3. Wipe exterior with soft, dry cloth.
  4. Replace needle regularly (every 8-10 hours of sewing).
  5. Store covered when not in use.

CAUTION! Unplug before cleaning or maintenance. Use only sewing machine oil.

Accessories

Standard accessories included with machine.

AccessoryPurpose
All-purpose footGeneral sewing
Zipper footInstalling zippers
Buttonhole footMaking buttonholes
Blind hem footHemming garments
Seam ripperRemoving stitches
NeedlesAssorted sizes
BobbinsExtra bobbins
BrushCleaning lint
ScrewdriverMinor adjustments

Safety Information

FCC Part 15: Class B digital device; complies with interference limits. UL listed for household use. Always disconnect power when changing needles, cleaning, or not in use. Keep hands away from moving parts. Do not operate with damaged cord or plug. Copyright © 2025 Kenmore; trademarks of Sears Brands LLC. For support, visit www.kenmore.com or contact 1-800-469-4669.

Troubleshooting

SymptomPossible CauseCorrective Action
Thread breakingIncorrect threading/tensionRethread completely; adjust tension; check for burrs on needle.
Skipped stitchesWrong needle/dull needleReplace needle; ensure correct type for fabric.
Bobbin thread bunchingIncorrect bobbin insertionRemove and reinsert bobbin; check threading.
Machine not feedingFeed dogs loweredRaise feed dogs; clean feed dog area.
Noisy operationLint buildup/needs oilingClean lint from bobbin area; oil moving parts.
Needle breaksWrong needle/bent needleReplace needle; ensure properly inserted; check for obstructions.

Reset: Unplug for 30 seconds if electronic issues occur.

Service: 1-800-469-4669; www.kenmore.com

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