Complete Service Manual

for

SINGER

337 and 338

SEWING MACHINES

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Includes:

Timing and Adjusting Instructions, Inspection and Replacement of Machine Parts, Electrical Diagrams, Illustrations, Repair and Replacement of Motor Components, and much more

for

Singer

337 and 338 Sewing Machines

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Singer 337, 338 Service Manual. (photo 04)

This is NOT a standard "Xerox"

copy of the Singer manual!

This manual is professionally printed

on the same heavy-weight brilliant-white paper as the

original Singer manual!

Heavy-weight brilliant-white paper. (photo 19)

Description:

This listing is for a professional reproduction of the Singer Manufacturing Co. Service Manual for classes 337 and 338 sewing machines. This is NOT a standard "Xerox" copy of the Singer manual! It is professionally printed on the same heavy-weight brilliant-white paper as the original Singer manual! It is super clean, the text and the illustrations are very sharp, and it is nearly identical in size and in paper type to the original Singer manual. This manual is not a bunch of pages stapled at the top corner. This manual is professionally bound, just like the original Singer manual.

Manual is professionally bound. (photo 01)

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This manual is professionally bound,

just like the original Singer manual.

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Unlike the original 50 year old manual that has become frail, brittle, mildewed, stained and yellowed after so many years, this manual looks like an original Singer manual that has been preserved in NEW CONDITION!

Just like the Singer company printed their manual on their in-house printing press, we printed this manual on our in-house printing press. This manual may also serve you for the next 50 years.

In fact, if we didn't tell you,

you could not tell the difference

between this manual and the

original manual!

This 44-page full-size Service Manual is complete and very clean with no "black dots," smudges, stains, or any other imperfections. No pages are missing, dirty, or damaged.

The manual includes descriptions and illustrations which will show you how to do the following:

• Description of machine 338

• Inspection

• Lubricate the 338 Machine (professional service lub)

• Set presser foot at the correct height

• Set feed dog sidewise in throat plate slots

• Eliminate end play or binding of feed rock shaft

• Eliminate end play or binding of feed lifting rock shaft

• Check for binding or end play of feed lifting rock shaft

• Feed timing

• Set height of feed dog

• Set feed dog lengthwise in throat plate slots

• Set the take-up spring

• Set the tension

• Adjust needle thread tension

• Adjust thread clearance

• Set needle bar at correct height

• Check the position of the needle for straight-stitching

• Eliminate end play or binding of oscillating hook shaft

• Eliminate end play or binding of oscillating hook crank

• Eliminate end play of upright arm shaft

• Eliminate end play or binding of horizontal arm shaft

• Time the oscillating hook

• Remove and replace the arm shaft

• Remove and replace the motor

• Remove and replace the light fixture

• Remove and replace the needle thread tension

• Remove and replace the hand wheel and flanged bushing

• Remove and replace the bobbin winder

• Remove and replace the stitch length regulator

• Remove and replace the feed lifting rock shaft

• Remove and replace the feed rock shaft assembly

• Remove and replace the feed bar assembly

• Remove and replace the oscillating hook and bell crank assembly

• Remove and replace the feed lifting rock shaft connecting rod

• Remove and replace the feed forked connection

• Remove and replace the needle bar

• Remove and replace the presser bar

• Remove and replace the needle thread take-up assembly

• Remove and replace the horizontal arm shaft

• Set the position of the needle to or from the hook point

• Centralize the needle in needle hole for straight stitching

• Time the pendulum movement of the needle bar

• Adjust needle position selector bracket assembly

• Adjust the cam stack

• Remove and replace the needle bar rocker bracket assembly

• Remove and replace the cam stack and stitch width lever assembly

• Remove and replace the needle position selector lever assembly

• Remove and replace the needle bar driving arm

• Remove and replace the dual purpose hand-wheel treadle/electric machine

• Wiring diagram

• Electric and treadle information to convert machines 337 and 338 from electric to treadle

• Convert machines 337K and 338K from treadle to electric

• Description of Machine 337

• Time the pendulum movement of the needle bar

• Adjust the cam stack

• Adjust needle position selector bracket assembly

Here are photos of some of the pages from the manual. You can see the superb quality of the print, photos, diagrams, and the quality of the paper itself.

Inspection and lubrication. (photo 05)

Feed timing and tension mechanism. (photo 06)

Setting needle position; eliminate play in oscillating hook and upright arm shafts. (photo 07)

Motor and light fixture. (photo 08)

Hand wheel; stitch length regulator. (photo 09)

Setting the needle position. (photo 10)

Hand wheel; wiring diagram. (photo 11)

These service instructions are very detailed and utilize diagrams and illustrations to make it easy to understand and carry out the instructions. In most cases a simple tool, like a screwdriver, is needed to do the task. And, once you know what to do, you may be able to perform the timing or the adjustment in just a couple of minutes! And when needed, you may be able to expertly remove and replace every single part of the machine!

These Service Instructions are a

MUST

for every owner

of a

Singer 337, 338

Sewing Machine!

Singer 337 and 338 Service Manual. (photo 03)

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Note for users of “Singer Service Manual for Machines 337 and 338” :

Most people who use this manual also use an additional manual which includes service information that is directly applicable to machines of Classes 337 and 338.

This additional manual is:

     “Illustrated List of Parts for Singer Sewing Machines 337 and 338”

      (available at our eBay listing # 204435240953)

The additional “Illustrated List of Parts Manual” includes illustrations of every single component, screw, nut, spring, plate, rod, hinge, handle, arm, etc. All the components and parts of every single accessory are shown. All these parts and components are illustrated in the proper size with respect to their actual size and with respect to each other.

This “Illustrated List of Parts for Singer Sewing Machines 337 and 338” manual is available at our eBay listing # 204435240953.

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