1998 Husqvarna Lily 550 & Lily 540 Sewing Machines Instruction Manual (P/N 412 53 25-26B)

This Husqvarna instruction book covers the 1998 Lily 550 and Lily 540 quilting-series sewing machines, with guidance on setup, sewing functions, routine maintenance, and fault-finding. The printed reference is 412 53 25-26B.

Text search and navigation: PDF text search and embedded bookmarks are not available. The contents page and alphabetical index provide page references for finding individual topics.

• Thread handling: Upper and lower threading, bobbin winding, twin-needle setup, and thread-tension settings for ordinary seams, decorative stitching, and heavy topstitching.

• Electronic controls: Infodisplay functions, stitch selection, memory programming, mirror-image stitching, pattern combinations, and programmed repeat operation.

• Buttonholes and sewing: Sensor-foot setup, buttonhole sizing and balance adjustments, button attachment, quilting, appliqué, mending, and darning.

• Routine maintenance: Needle plate removal and replacement, cleaning the feed teeth and bobbin area, and light-bulb replacement.

• Fault-finding: Symptom-based checks for broken threads, uneven tension, fabric-feeding problems, incorrect stitches, sluggish running, and a main motor that will not run.

The illustrated threading and stitch-setting basics make this manual suitable for Lily owners learning the machine’s controls and handling its routine care.

Electronic Programming & Setup

The Infodisplay section explains needle-stop and speed controls, FIX and STOP, and the NORM, PROG, and REP modes. Programming examples show how stitches and letters can be combined, corrected, deleted, mirrored, and repeated.

Model differences are identified throughout. The 550 offers block, outline block, and script lettering, along with a dedicated Pictogram section; the 540 uses outline block lettering.

Darning and tapered satin stitches have separate repeat settings and cannot be combined in PROG. The programming notes also explain how mirroring a complete sequence can move a saved STOP to its beginning.

Threading, Needles & Fabric Feeding

Upper-thread drawings follow the guides and thread take-up lever. Bobbin-winding illustrations identify the bobbin spindle and distinguish winding through the threaded machine from the vertical spool-pin arrangement. Twin-needle threading uses the extra spool pin.

Presser-foot views accompany the instructions for changing feet and using the presser foot pressure dial. The drop feed dial section explains the feed-teeth positions used for button sewing and freehand work.

The needle reference covers the 130/705H system, including standard, jeans, stretch, twin, wing, embroidery, quilting, and Microtex needles. Thread-tension illustrations distinguish loose, tight, and balanced stitching, helping relate a seam’s appearance to the setting involved.

Buttonhole Sensor, Balance & Stitch Selection

The electronic buttonhole sensor foot is illustrated with its measurement wheel, display indications, and button-size ruler. General stitch-density adjustment is explained separately from the BAL function, which changes the density of the right-hand buttonhole column.

Separate stitch tables identify the selections available on each model and their sewing applications. The sewing sections cover flatlock and bridging stitches, buttonhole knife use, and the clearance plate for button shanks and thick jeans seams.

Machine Care & Fault-Finding

The fault-finding pages connect stitching symptoms with specific needle, threading, tension, and feed checks. This helps owners identify setup or cleaning problems before arranging a repair. The same section addresses recovery after an electronic disturbance and resetting the electronic overload protector when the main motor stops.

Routine care includes cleaning without owner lubrication and illustrated lamp replacement using the supplied rubber sleeve. The safety notes identify an incorrect needle plate as a cause of needle breakage; the fault-finding section links chipped plate edges to thread damage.

Disconnect the machine from power before removing covers for cleaning or replacing the bulb.

This is an operating and care manual. Internal motor repair, circuit-board repair, and timing adjustments require separate service documentation. Electrical wiring diagrams are not included.

English PDF & Included Pages

The 60-page PDF is one printable English file. Its total includes 56 pages of instructions and reference material, two cover pages, a one-page manufacturer notice, and a one-page EC declaration of conformity.