2004 PFAFF Coverlock 4852 Sewing Machine Owner's Manual (P/N 29 629 000-20D)

The 2004 PFAFF Coverlock 4852 owner's manual covers household overlock and cover stitch sewing in 2-, 3-, 4-, and 5-thread configurations. This English VSM Group AB manual carries document code 29 629 000-20D.

Text search and navigation: The main instructions and tables have searchable text, but labels within illustrations are not all searchable. There are no embedded PDF bookmarks. Some contents entries and internal references differ from the printed page numbers.

• Threading and needle setup: Illustrated paths for the upper and lower overedge loopers, two-thread chainstitch/cover stitch looper, and needles.

• Stitch programs: Setup charts for 18 programs, including cover stitch, flatlock, rolled hems, overedge seams, and four- and five-thread safety-stitch seams.

• Fabric feed and seam control: Differential feed, presser foot pressure, seam width and stitch length adjustments, with a fabric/effect selection chart.

• Stitch troubleshooting: Illustrated tension-correction examples and a problem/cause/solution table for faulty seams, feeding problems, needle breakage and poor trimming.

• Owner maintenance: Needle and upper-blade replacement, needle plate removal, machine cleaning, lubrication and sewing-light bulb replacement.

• Accessories: Power table and edge guide use, plus optional presser-foot and attachment tables with order numbers and applications.

For owners getting familiar with this machine, the illustrated threading paths and program charts explain the setup choices needed for different stitch types.

Machine Operation and Threading Scope

Machine preparation covers the electrical connection, master switch, foot control and looper cover. The spool holder, thread nets, thread unreeling discs, cone thread adapter and telescoping thread guide are explained alongside the needle threader.

Needle and looper configurations: The needle-position drawings distinguish L1, L2, R1 and R2, with up to two needles used together. Separate chainstitch and cover stitch threading diagrams show the different paths used by the shared looper.

Setup for programs 01 and 02 covers the power table, upper blade and upper overedge looper disengagement. Rolled-hem and two-thread sections explain the swiveling stitch width latch and converter; finishing topics include the thread chain cutter and edge guide.

Stitch Selection and Fault Finding

The program overview pairs stitch types with needle positions, converter and looper settings, and recommended tensions. Its baselines are for medium-heavy fabrics and normal polyester thread; the manual calls for test seams because fabric, thread and needle choice affect stitch formation.

Stitch formation correction: Color-coded examples distinguish needle-thread loops from upper- and lower-looper tension faults. They help owners match a faulty seam to the relevant tension control before seeking repair.

Troubleshooting also links a machine that will not run to the looper-cover interlock and covers skipped stitches, puckering and thread breakage. The thread chart relates fabric types to thread selection and stitch length.

Mechanical Maintenance and Repair Limits

Cleaning illustrations locate the blades, differential feed and looper area; lubrication drawings identify the specified oiling points. Upper-blade replacement includes alignment against the lower blade, while the needle section specifies EL X 705, cat. no. 2002.

The safety section identifies an incorrect needle plate and pulling fabric while sewing as causes of needle breakage. Parts keys locate the controls, accessory box and tools stored behind the swivel plate.

Its repair coverage is limited to the user maintenance and fault corrections described here; internal overhaul procedures and wiring diagrams are outside its scope. Disconnect electrical power before maintenance and consult an authorized PFAFF dealer for major service.

Optional accessories: The tables give order numbers and uses for the blindstitch foot D, piping and welting foot E, hemmer guide H2 and other attachments. Coverage here consists of accessory listings; detailed operating instructions for every optional foot are outside the manual's scope.

English PDF and Included Pages

One printable English PDF with 72 pages total: 62 pages from the introduction through specifications, plus 10 pages of front and end matter already included: two cover pages, four component-identification pages, one safety page, one intellectual-property page and two blank pages. No separate supplements are included.