sears sewing machine manual 158

The Sears Sewing Machine Model 158 is a versatile household sewing machine featuring multiple stitch patterns, adjustable stitch length and width, built-in buttonholer, free arm capability, reverse stitching, and variable speed control. This mechanical sewing machine operates on standard household current and includes accessories such as various presser feet, bobbins, needles, and a seam ripper. Below are key sections covering safety, features, setup, operation, maintenance, and troubleshooting.

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. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Mechanical sewing head, stitch pattern dial, stitch length control, stitch width control, reverse lever, free arm, built-in light, foot pedal control.

FeatureDescription
Stitch Pattern DialSelects from multiple built-in stitch patterns
Stitch Length ControlAdjusts stitch length from 0-4mm
Stitch Width ControlAdjusts zigzag width from 0-5mm
Reverse Stitch LeverEngages reverse stitching for seam reinforcement
Free ArmRemovable flat bed for sewing cuffs and sleeves
Built-in ButtonholerOne-step automatic buttonhole function
Variable Speed ControlFoot pedal controls sewing speed
Built-in LightIlluminates sewing area
Bobbin WinderBuilt-in bobbin winding mechanism
Presser Foot PressureAdjustable for different fabric types

Installation & Setup

Unpack and inspect all components. Place on stable, level surface.

  1. Remove machine from packaging: Lift carefully from carrying case.
  2. Position machine: Place on sturdy table or sewing cabinet.
  3. Connect foot pedal: Plug into machine's pedal port.
  4. Connect power: Plug power cord into standard electrical outlet.
  5. Install needle: Loosen needle clamp screw, insert needle with flat side to back.
  6. Install bobbin: Follow threading diagram for drop-in bobbin system.

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

First-Time Operation

Power on machine; test basic functions.

  1. Thread machine: Follow numbered threading path on machine.
  2. Wind bobbin: Place empty bobbin on winder, thread through tension disc.
  3. Select straight stitch: Set pattern dial to straight stitch position.
  4. Test stitch: Place fabric under presser foot, lower foot, press pedal gently.
  5. Adjust tension: Test on scrap fabric, adjust upper tension as needed.
  6. Practice reverse: Engage reverse lever to reinforce stitches.

CAUTION! Always start with needle in highest position. Keep work area well-lit.

Specifications

Controls and Settings

Main controls located on front and side of machine.

Front Panel: Stitch pattern dial, stitch length control, stitch width control, reverse lever, bobbin winder.

Stitch Selection: Rotate pattern dial to desired stitch. Stitch Length: Turn knob for longer/shorter stitches. Stitch Width: Adjust for zigzag and decorative stitches. Reverse: Hold lever for backward stitching. Tension Control: Adjust upper thread tension (3-9 range). Presser Foot Pressure: Adjust for light/heavy fabrics.

Stitch Selection

Pattern dial offers multiple stitch options.

  1. Straight Stitch: Basic sewing, position 1
  2. Zigzag Stitch: Overcasting, applique, position 2
  3. Multiple Zigzag: Elastic and stretch fabrics, position 3
  4. Blind Hem: Nearly invisible hems, position 4
  5. Decorative Stitches: Positions 5-8 for embellishment
  6. Buttonhole: Automatic one-step, position 9
  7. Darning: Free-motion sewing, position 0

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

Threading & Bobbin

Proper threading ensures smooth operation.

  1. Raise needle to highest position using handwheel.
  2. Place spool on spindle, follow numbered threading path.
  3. Thread through tension discs, take-up lever, and needle.
  4. Wind bobbin: Place empty bobbin on winder, thread through guide.
  5. Insert bobbin: Drop into bobbin case, pull thread through slot.
  6. Pull up bobbin thread: Hold upper thread, turn handwheel slowly.

WARNING! Ensure machine is off during threading. Keep threads clean and untangled.

Maintenance & Cleaning

Regular maintenance ensures optimal performance.

  1. Daily: Brush out lint from bobbin area and feed dogs.
  2. Weekly: Oil moving parts with sewing machine oil.
  3. Monthly: Clean tension discs with soft brush.
  4. As needed: Replace needle after 8-10 hours of sewing.

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

Accessories

Standard accessories included with machine.

AccessoryUse
All-Purpose FootGeneral sewing
Zigzag FootDecorative stitches
Buttonhole FootAutomatic buttonholes
Zipper FootInstalling zippers
Button Sewing FootSewing on buttons
Bobbin (4)Extra bobbins
Needles (5)Assorted sizes
Seam RipperRemoving stitches
BrushLint cleaning
ScrewdriverAdjustments

Regulatory Information

UL Listed for household use. Complies with FCC regulations for electromagnetic compatibility. Copyright © Sears, Roebuck and Co. For technical support, contact Sears Customer Service at 1-800-469-4663 or visit www.sears.com.

Troubleshooting

SymptomPossible CauseCorrective Action
Thread breakingIncorrect threading/tensionRethread completely; adjust tension; check for burrs on needle
Skip stitchesWrong needle/damaged needleReplace needle; ensure correct needle for fabric type
Bobbin thread bunchingIncorrect bobbin threadingRethread bobbin; check bobbin case for lint
Machine won't runPower/pedal issueCheck power connection; test foot pedal; check fuse
Uneven stitchesTension issuesAdjust upper and bobbin tension; clean tension discs
Noisy operationLint/lack of oilClean and oil machine; check for loose parts

Reset: Turn off machine, wait 30 seconds, restart.

Service: 1-800-469-4663; authorized Sears service centers

Sears Sewing Machine Manual 158 © - All Rights Reserved 2025