The Kenmore 158 series, sold by Sears, includes models like 158.1581, 158.17851, 158.1340, 158.19800 and 158.90. Each code signals small variations—needle bar length, stitch selector count, bobbin case style—while preserving the classic treadle‑compatible construction.
Model identifiers and variations
The Kenmore 158 prefix denotes a family of machines manufactured primarily by Japanese firms such as Janome and Toyota for Sears Roebuck between the late 1960s and early 1990s. The numeric suffix after the decimal point distinguishes specific feature sets, cabinet styles, and stitch capabilities. Early entries like the 158.1340 and 158.1355080 represent mechanical zigzag units with four-step buttonholes and front-mounted bobbin winding. Mid-range models including 158.1581, 158.1680, 158.1682, and 158.1690 added stretch stitch cams and wider stitch width up to 6mm. The 158.17851 and related 1780 series—1781, 1782, 1785, 17860, 17861, 17862—introduced electronic speed control, built-in buttonholers, and cartridge-based stitch programs. Later 158.19800, 158.19801, and 158.19802 variants featured drop-in top-loading bobbins and free-arm conversion. The compact 158.90 series (90, 900, 901, 902, 904) targeted portable use with lightweight aluminum frames. Collectors note that identical model numbers sometimes shipped with different badging or motor wattage depending on retail channel. Cross-referencing the three-digit suffix with the original sales receipt or motor plate ensures accurate manual selection for maintenance and parts ordering. Additional variations exist within each subgroup where a trailing digit indicates of cabinet type: 0 for portable, 1 for cabinet mount, 2 for electronic module revision. Service bulletins reference these sub-codes when specifying feed dog height or needle bar assembly updates. Online communities frequently catalog these nuances to assist owners in sourcing correct replacement gears, cam stacks, or printed circuit boards unique to each dash-number configuration. Accurate identification prevents mismatched tension assemblies or incompatible foot controller wiring harnesses during restoration projects right now!!
Locating and Downloading the Official Manual
Official Kenmore 158 PDFs reside in Sears’ archive and on hobbyist sites. Search “Kenmore 158 manual PDF” to find scanned 158.1581, 158.17851, 158.1340 files on Etsy, Reddit’s r/vintagesewing, and low-li story links. Download the matching suffix for accurate setup today now!!
Sears/Kenmore archival PDFs
The Sears‑Kenmore 158 family was documented in a series of factory‑issued manuals that have been digitized and stored in several public archives. The most reliable source is the official Sears “Vintage Manuals” collection, which hosts PDF scans for every model suffix—158.1581, 158.17851, 158.1340, 158.19800, 158.90 and related variants. To retrieve a file, navigate to the Sears archive homepage, select “Sewing Machines,” then filter by “158” in the model field. Each entry provides a thumbnail of the cover, a brief description of the model’s stitch selector count, and a “Download PDF” button that delivers a high‑resolution, searchable document.
In addition to the Sears repository, several enthusiast sites have mirrored the PDFs for easier access. The r/vintagesewing community on Reddit posted a direct link to a 2021‑06‑21 upload of the 158.17851 manual, hosted on a low‑li file‑sharing service. The post includes a checksum (MD5: 5e2b7c9a1f3d4e6a) so users can verify file integrity.
The Kenmore 158 Series Sewing Machine Manual: PDF Digital Download ー Etsy Spain: Kenmore 158 Series Sewing Machine Manual PDF Digital Download Models: 158.1581, 1680, 1682, 1690, 1780, 1781, 1782, 1785, 17860, 17861, 17862. This is a professionally scanned digital PDF copy of the original Kenmore 158 Series Sewing Machine Instruction Manual, covering multiple models.
When downloading, check file size (usually 1.2‑1.8 MB) and open the PDF to confirm it works. If corrupted, try another mirror such as the Reddit link, the Etsy bundle, or the Internet Archive copy. Keep a saved copy for setup and troubleshooting.
Initial setup and machine assembly
When the Kenmore 158 arrives, remove all cardboard, foam and screws from the crate; Place the base on a stable table and set the main body upright. The motor housing is pre‑bolted; attach the power cord, foot‑pedal and optional treadle bracket that come loose in the box.
Attach the foot‑pedal by sliding its metal bracket onto the pedal arm and securing it with two Phillips screws. Adjust the spring tension dial to a medium setting for smooth operation. For a treadle, replace the foot‑pedal bracket with the larger plate and bolt it using the same three screws.
Thread the upper path before stitching. Pull the spool pin through the top guide, loop the thread around the tension disc, follow the arrows to the take‑up lever, down to the needle bar and finally through the needle eye. The manual diagram (page 3) shows the exact sequence.
Install the bobbin by opening the latch, placing the bobbin (right‑hand thread clockwise) into the case, pulling the tail through the slot and closing the latch. Rotate the winder knob a few turns to seat it. Plug the machine into a grounded outlet, turn on the power switch and test needle motion with the foot‑pedal. The needle should rise and fall smoothly; any binding means the needle bar needs realignment per the service guide.
Before beginning any project, verify that the machine is level and the tension dial is set to the middle position. Check that the needle is correctly inserted with the flat side facing the back, and that the presser foot is lowered. A quick test stitch on scrap fabric confirms proper assembly and tension. Keep the oil points clean
Threading the upper thread and bobbin
Begin by raising the needle to its highest position using the hand wheel and lifting the presser foot lever to release the tension discs. Place a spool on the horizontal spool pin and secure it with the appropriate cap. Draw the thread from the spool through the rear thread guide at the top of the machine arm, then forward through the front guide. Next, guide the thread down the right channel of the tension assembly, ensuring it slips between the tension discs, and up the left channel to the take‑up lever. Hook the thread firmly into the eye of the take‑up lever from right to left. Continue downward through the thread guide on the face plate and the needle bar guide, finally passing the thread through the needle eye from front to back. Pull about four inches of thread through the needle and lay it under the presser foot.
For the bobbin, remove the bobbin case by opening the slide plate and lifting the latch. Insert a wound bobbin so the thread unwinds clockwise; Pull the thread into the slot and under the tension spring until it clicks into the delivery eye. Hold the case by the latch and insert it into the shuttle race until it snaps securely. Close the slide plate. Hold the upper thread lightly, turn the hand wheel toward you one full rotation to bring up the bobbin thread, and pull both threads diagonally back under the presser foot. Verify smooth flow by stitching on a scrap of fabric; adjust tension if loops appear on either side. The manual diagrams for models 158.17851 and 158.1340 illustrate this exact path with numbered arrows for clarity. Always use quality thread to prevent breakage and lint buildup in the tension area. Regular cleaning of the bobbin case ensures consistent stitch formation across all 158 series variants.
Consult the specific PDF for your exact model number—such as 158.19800 or 158.90—as minor threading variations exist between early and late production runs. Proper threading eliminates skipped stitches and thread nests, preserving the machine’s legendary durability. Check tension dials before each project.
Stitch selection, length, and width adjustments
The Kenmore 158 series typically features a stitch selector dial or lever located on the front panel, allowing users to choose between straight stitch, zigzag, and various utility or decorative patterns depending on the specific model variant such as the 158.17851, 158.19800, or the 158.1581, 1680, 1682, 1690, 1780, 1781, 1782, 1785, 17860, 17861, 17862 series listed in archival PDFs. To select a stitch, rotate the dial until the desired symbol aligns with the indicator mark; the needle position may shift automatically. Stitch length is controlled by a separate dial or lever, often calibrated from 0 to 4 or 5 millimeters. For straight stitching, a setting of 2.0 to 2.5 is standard for medium fabrics, while basting requires the longest setting. Zigzag and decorative stitches rely on the stitch width control, usually a second dial marked 0 to 4 or 5, determining the needle swing amplitude. Always adjust width with the needle up to prevent needle breakage. The manuals for models 158;1581 and 158.1340 illustrate combination charts showing recommended length and width pairs for buttonholes, satin stitching, and stretch seams. Some later 158.90 models include a stretch stitch selector that overrides the length dial for specific elastic patterns. Test settings on fabric scraps before starting a project. Proper calibration ensures balanced tension and prevents puckering or skipped stitches across the diverse 158 lineup. Consult your specific model supplement for unique cam stack instructions and gear driven pattern selections.
Maintenance schedule and lubrication points
The Kenmore 158 series, whether you own a 158.1581, 158.17851, 158.1340, 158.19800 or any of the 158.90 variants, follows a simple yet thorough maintenance routine that keeps the cast‑iron gears and the lightweight aluminum housing operating smoothly for decades.
Weekly care – After each sewing session, turn the power off, remove the needle, and brush away lint from the feed dogs, bobbin case and the throat plate with a soft brush. Wipe the exterior with a dry cloth; never spray solvent directly on the machine.
Bi‑weekly lubrication – Using a high‑quality sewing‑machine oil, apply a single drop to each of the eight designated oiling points shown in the original manual: the needle bar pivot, the bobbin case shaft, the upper shuttle cam, the feed‑dog lever pivot, the presser‑foot lever pin, the stitch‑selector cam, the motor shaft bearing (for electric models) and the internal gear train pin on the side plate. Rotate the handwheel slowly forward and backward three times after oiling to distribute the oil evenly.
Monthly deep clean – Disassemble the removable metal cover, take out the bobbin case, and soak both in warm soapy water. Rinse, dry thoroughly, and reinstall. Check the tension spring on the take‑up lever; if it feels loose, replace it according to the parts list for model 158.17851 or 158.19802.
… Following this schedule, as outlined in the PDF manuals sold on Etsy and archived on the Sears/Kenmore site, ensures consistent stitch quality, prevents motor overheating, and extends the life of the beloved 158 series beyond the typical 20‑year lifespan.
Core Content of the Manual
Official Kenmore 158 manuals encompass models 158.1581, 17851, 1340, 19800, and 90 series. Scanned PDFs from Sears archives and Etsy include detailed threading guides, stitch selection charts, parts diagrams, and lubrication charts for every variation. These documents ensure proper setup and long-term maintenance for each user well.
Troubleshooting common problems
The Kenmore 158 series service manuals covering models 158.1355080, 158.17851, 158.1340, 158.19800, and 158.90 provide systematic troubleshooting flowcharts for mechanical and electrical faults. Upper thread shredding usually originates from a damaged needle plate hole, rough thread guides, or mismatched needle and thread weights detailed in the specification charts. Persistent skipped stitches on stretch fabrics demand a ballpoint needle and reduced presser foot pressure adjustments outlined in the 158.17851 supplement. Bobbin case ejection or loud knocking indicates a loose hook race setscrew or worn driver finger requiring precise realignment using the timing marks illustrated in the 158.1340 diagrams. Erratic tension despite correct threading often traces to a corroded tension disc assembly or weakened check spring, both replaceable using part numbers listed in the 158.19800 parts list. Motor overheating or intermittent operation suggests carbon brush wear or foot controller rheostat failure, diagnosed via the wiring schematic in the 158.90 addendum. Feed mechanism stalling on heavy seams correlates to dried lubricant in the eccentric cam followers, resolved by flushing with solvent and applying fresh synthetic grease per the maintenance schedule. Needle bar height drift causing needle strikes necessitates loosening the clamp screw and resetting to the 158.1581 factory specification. Vintage wiring insulation cracking poses shock hazards; inspect the power cord entry grommet and motor field coil leads regularly. The 158.1355080 forum threads highlight frequent missing reverse lever springs, a part cross-referenced in the 158.1680 exploded view. Light socket corrosion interrupts illumination; clean contacts. Inspect winder tire for hard rubber causing uneven winding. Fixed…
Accessory and attachment overview
The Kenmore 158 series manuals for models 158.1581, 158.17851, 158.1340, 158.19800, and 158.90 detail a comprehensive accessory ecosystem designed for the low-shank mounting system. Standard inclusions across most variants feature a straight stitch foot, zigzag foot, zipper foot, buttonhole attachment with template guides, blind hem foot, and a snap-on hemmer foot. Specialty attachments documented in the 158.17851 supplement include a ruffler for automated gathering, a quilting guide bar for parallel line stitching, and a cording foot for piping applications. The 158.1355080 forum discussions highlight the optional buttonholer unit as a critical separate purchase for models lacking built-in automatic cycles. Bobbin inventory specifies Class 15 transparent plastic bobbins for top-loading variants and metal Class 15 bobbins for front-loading 158.90 series machines. Needle system 15×1 (HAx1) compatibility spans sizes 9 through 18 for diverse fabric weights. Maintenance tools supplied comprise a multi-fit screwdriver, lint brush, oil tube, and seam ripper stored in the accessory tray or slide plate compartment. The 158.19800 parts list references a darning plate for free-motion embroidery and a spool pin felt set preventing thread snagging. Carrying case hardware, knee lifter lever, and extension table brackets appear in the 158.1680 exploded diagrams. Voltage-specific motor brushes and foot controller assemblies are cataloged per regional wiring standards. Users should verify shank height clearance before adapting generic low-shank feet to avoid needle strike damage and ensure optimal stitch formation across all supported model variations. Original Sears packaging often included a fitted dust cover and instruction card binder for organized storage of all components and a comprehensive parts schematic booklet for simplified reordering throughout the machine’s extended service life.
Warranty information and service contacts
Original Kenmore 158 manuals from Sears Roebuck outlined a limited warranty covering defects in materials and workmanship for one year from purchase for residential use. Commercial applications often reduced coverage to ninety days. The warranty generally required the owner to present the original sales receipt and deliver the machine prepaid to an authorized Sears service center for inspection and repair. Labor and replacement parts were included during the warranty window, excluding consumables such as needles, bobbins, light bulbs, and drive belts. Damage resulting from misuse, neglect, unauthorized adjustments, or voltage incompatibility was explicitly excluded. The manuals directed users to the nearest Sears retail store or catalog order office for service appointments, parts ordering, and technical inquiries. Contact information typically listed the Sears Repair Services national hotline and a regional service center directory printed in the back pages of the instruction booklet. For models 158.1355080, 158.17851, 158.1340, and 158.19800, the manufacturer code “158” identified the Japanese contractor, often Janome or Toyota, influencing parts interchangeability. Current owners seeking vintage support must rely on independent technicians, online communities like the Victorian Sweatshop Forum or r/vintagesewing on Reddit, and specialty parts vendors such as SewConsult or Etsy digital manual sellers, as Sears corporate warranty infrastructure has been discontinued. Always verify the model plate serial number when requesting service bulletins or obsolete gear assemblies to ensure accurate component matching for these durable mechanical platforms. Digital PDF copies from Etsy and SewConsult replicate warranty pages for models 158.1581, 1680, 1780, 1785. Retain docs for provenance verification during resale or appraisal of these collectible vintage units right now.
Safety guidelines and best practices
Before you begin, locate the model plate on the right side; the manual states that all safety instructions apply to every 158 variant (158.1581, 158.17851, 158.1340, 158.19800, 158.90 series). Unplug power cord whenever you thread upper thread, replace bobbin, change needle, clean lint trap or make an adjustment, because motor may retain a small charge after shutdown. Never operate without the protective cover over the needle plate, keep fingers clear of the moving needle bar, shuttle hook and drive belt, and use the thumb lever or presser foot lever when hand‑feeding fabric, keeping the edge away from the feed dogs. Ensure the built‑in lamp works before each session, replace a burned bulb with the exact wattage (usually 15 W), and work in a dry, dust‑free area away from flammable materials such as loose threads or fabric scraps. Apply light oil only to three lubrication points listed in manual (shuttle hook pivot, needle bar bearing, motor shaft bearing) when machine is cool, wiping away excess to prevent slippage and lint buildup, and use correct needle size for fabric. Store the machine in a controlled place, covered with dust cover, and disconnect power if idle for more than six months; rotate the handwheel periodically. If machine stops, makes noises, or needle breaks, unplug it, consult troubleshooting guide, and do not open motor housing or adjust internal gears unless you are a technician, as this voids warranty and may cause electric shock. By following these guidelines you protect yourself, extend the life of your Kenmore 158 and ensure consistent stitch quality for every project Remember to read the full manual annually to stay updated on safety revisions