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Parts List for Singer 138w102 Sewing Machine

Comprehensive parts list and maintenance guide for the Singer 138w102 sewing machine. Includes exploded view diagrams, part numbers, and essential oiling instructions.

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Quick Guide to Parts and Maintenance

This document serves as the official parts list for the Singer 138w102 sewing machine. It provides detailed information on individual components, assembly diagrams, and maintenance requirements to ensure the machine operates correctly.

Oiling Instructions

To maintain smooth operation and prevent unnecessary wear on moving parts, the machine must be oiled regularly:

  • Frequency: Apply oil at least twice each day during continuous use.
  • Oil Type: Use only Singer 'TYPE B' or 'TYPE D' oil. 'TYPE D' oil is stainless.
  • Application Points: Apply oil to the small felt pad on the side of each bobbin case and all oil holes marked 'OIL'.

Ordering Parts

When ordering replacement parts, follow these guidelines to ensure you receive the correct items:

  • Use only the part number listed in the first column of the parts tables.
  • If a part number is followed by a letter (e.g., A, B, C), this indicates the finish style (e.g., Hardened, Polished, Nickel Plated) and must be included in your order.
  • Some part numbers represent a combination of parts (e.g., parts riveted or soldered together) and are furnished as a single unit.
  • Figures in the second column refer to the plate number where the part is illustrated and should not be used for ordering.

Needle Compatibility

For optimal performance and to prevent damage, use only genuine Singer needles. Needles in containers marked 'FOR SINGER MACHINES' are not manufactured by Singer and should be avoided.

Component Diagrams

The following diagrams illustrate the assembly of various machine components. Refer to these plates to identify parts and their relative positions.

Arm shaft and bushing assembly
Arm shaft and bushing assembly
Bobbin case and hook assembly
Bobbin case and hook assembly
Feed dog assembly
Feed dog assembly
Lifting mechanism assembly
Lifting mechanism assembly
Tension bracket assembly
Tension bracket assembly

Manufacturer information

SINGER

Brand profile

Practical help

Common problems

Machine running stiffly or experiencing excessive wear

Ensure the machine is oiled at least twice daily using Singer 'TYPE B' or 'TYPE D' oil on all oil holes marked 'OIL' and the felt pad on the bobbin case.

Needle breakage or poor stitch quality

Verify that you are using genuine Singer needles. Needles marked 'FOR SINGER MACHINES' are not manufactured by Singer and may not meet specifications.

Before use

  • Check that the machine is properly oiled at all designated points.
  • Verify the correct needle type is installed.
  • Ensure the bobbin case is correctly seated and latched.
  • Inspect the thread path for any obstructions.

Specs in practice

Finish Letters
Letters following a part number (e.g., A, B, C) indicate the specific style of finish (e.g., Hardened, Polished, Nickel Plated) and must be included when ordering.
Combination Parts
Some part numbers represent a combination of parts (e.g., parts soldered or riveted together) and must be ordered as a single unit.

Images and diagrams

  • The manual contains exploded view diagrams (Plates) showing the assembly of components.
  • Use the Plate number listed in the parts table to locate the corresponding diagram.

Model compatibility

  • This parts list is specific to the Singer 138w102 machine.
  • Use only Singer-branded needles for optimal performance.

Manual page author

David Miller

Documentation analyst

Organizes user manual content into clear summaries, with attention to model details, product context, and everyday usability.