Pfaff 138 Sewing Machine Instruction Book

This service manual for the Pfaff 138 sewing machine covers all aspects of operation and maintenance. Included are sections on threading, bobbin winding, tension settings, and specialized stitch functions. Part Number 91-041 420-05.

4.5starstarstarstarstar_half(2)
visibility Preview Available
Pfaff Pfaff 138 Sewing Machine Instruction Book manual page preview - page 1 of 39

Sample pages from the Pfaff 138 Sewing Machine Instruction Book manual

Pfaff Pfaff 138 Sewing Machine Instruction Book manual preview page 1 - thumbnail
Pfaff Pfaff 138 Sewing Machine Instruction Book manual preview page 4 - thumbnail
Pfaff Pfaff 138 Sewing Machine Instruction Book manual preview page 5 - thumbnail
info_outline Click thumbnails to preview different pages

Purchase & Download

$13.09 (incl. VAT) Instant Download / No Shipping Fees
OR BUY NOW
verified_user
Lifetime Access
Re-download anytime
flash_on
Instant Download
Get it immediately
lock
Secure Payment
PayPal

Document Details

keyboard_arrow_down
Document Number / Seller:
25273 / Betty Miller
File Size:
7.46 MB
File Type:
ZIP
Language:
English, German, Spanish, Italian
Pages:
39
Printable:
Yes
Category:
Sewing Machine
Last updated / verified
Sep 23, 2025

Models Covered & Key Technical Specifications

Pfaff 138 Sewing Machine (91-041 420-05) - 1970s Operation and Maintenance | Sewing Machine Library

  • Reference Output Performance: 39 pages establish the complete documentation.
  • Approved Linear Velocity: The machine operates at speeds up to 6000 stitches per minute.
  • Designated Gross Dimensions: Machine dimensions are 18 x 7 x 12 inches.
  • Essential Rotational Force: The motor requires 110-120V input power.
  • Baseline Play Limits: Not applicable for this sewing machine model.
  • Fundamental Burn-in Temperature: Not applicable for this sewing machine model.

Professional Workshop Service Manual & Technical Specifications

Pfaff 138 Sewing Machine Instruction Book: Comprehensive PDF

Unit-Designations: Pfaff 138 Sewing Machine // Operational-Framework: Sewing Machine / Instruction Manual Logic // Calibration-Scope: Operational Procedures.

Technical Specifications

Integrated-Framework Rating Context
Language Availability Multi-language English, German, Spanish, Italian
File Size 7.46244 MB Digital document size
Document Type Instruction Manual Official operating guide

Systems and Procedures

Setup and Initial Operation

The service manual covers initial setup procedures, including machine cleaning and oiling on pages 4-5. It details safety instructions and important notes for first-time users.

Threading and Stitching

Comprehensive guidance is provided for threading the upper and lower threads, winding the bobbin, and inserting the needle. It documents various stitch types and their adjustment.

Maintenance and Troubleshooting

Information on cleaning the machine, regulating tensions, and troubleshooting common issues such as skipped stitches and thread breaks is included.

Specialized Attachments and Functions

The manual details the use of various presser feet and attachments for specific tasks like buttonhole sewing, quilting, and blindstitching.

Part Identification

Includes diagrams and part numbers for wear parts and accessories, aiding in identification and replacement.

Torque Statement: This manual does not specify torque values as they are not applicable to sewing machine adjustments.

FAQ

What values are required for **calibrated** system architecture? keyboard_arrow_down

39 pages detail the complete system architecture and operational parameters.

Assess the **applicable** tool requirements for this machine. keyboard_arrow_down

Basic hand tools, screwdrivers, and specialized presser feet as detailed within the manual are required.

What components have **exact** electrical values specified? keyboard_arrow_down

Electrical values are not explicitly detailed; however, diagrams show component placement and identification.

Confirm the **specific** calibration settings for optimal performance. keyboard_arrow_down

Settings for stitch length, stitch width, needle position, and thread tension are precisely documented.

What tools are **designated** for clearance measurements? keyboard_arrow_down

While no specific measurement tools are listed, the manual details adjustments for needle and presser foot clearance.

Customer Reviews

Read what our customers say about this Pfaff Sewing Machine manual and share your own experience.

Add a Review

* Required information
1000
Captcha Image

Reviews (2)

Avatar
New
Rated 4 out of 5 stars
Avatar
New
This manual is incredibly thorough and easy to follow. The download process was seamless—received my link within minutes! Highly recommend for anyone looking to get the most out of their sewing machine.