Professional Full Edition Service Manual for Singer 401 and 401A Sewing Machines

Description

Service Manual
for
SINGER 401, 401A
SEWING MACHINES
*********
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 401, 401A Machines
*********
Singer 401, 401A Service Manual. (photo 02)
This is NOT a standard "Xerox"
copy of the Singer manual!
This manual is
professionally
printed
on the same
heavy-weight pure-white paper
as the
original Singer manual!
Description:
This listing is for a professional reproduction of the Singer Manufacturing Co. Service Manual for class 401 sewing machines. This is NOT a standard "Xerox" copy of the Singer manual! It is
professionally printed
on the same
heavy-weight pure-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.
***************
This manual is professionally bound,
just like the original Singer manual.
***************
Unlike the original 60 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 60 years.
In fact, if we didn't tell you,
you could not tell the difference
between this manual and the
original manual!
This 42-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
:
Identify the Principal Parts of Machine 401
Description of Class 401 Machines
Preparation of Machine for Inspection
Lubricate Class 401 Machines (professional service lub)
Set Presser Foot at Correct Height
Set Feed Dog at Correct Height
Set Feed Dog Lengthwise in Throat Plate Slots
Set Feed Dog Side-wise in Throat Plate Slots
Eliminate Noise in Feed Movement
Adjust Thread Clearance
Feed Timing
Set the Check Spring
Adjust Needle Thread Tension
Set Needle Bar at Correct Height
Check Position of Needle in Relation to Straight-Stitching Throat Plate
Eliminate Side-Shake or Binding of Needle Bar
Check These Points When Stitch Regulator Sticks, Creeps or Binds
Eliminate End Play or Binding of Feed Rock Shaft and Feed Lifting Rock Shaft
Eliminate End Play or Binding of Hook Driving Shaft
Eliminate End Play or Binding of Upright Arm Shaft
Eliminate End Play or Binding of Horizontal Arm Shaft
Set the Index Pins at the Correct Height
Time the Cam Stack
Set Cam Selector Arm Stops
Zero-Out the Machine
Centralize the Needle Bar Driving Arm with Disk Selector Arm Bracket Followers
Centralize the Needle in Needle Hole in Straight-Stitch Throat Plate
Time the Rotating Hook
Set the Position of the Hook Point to or From the Needle
Removal and Replacement of the Upright Arm Shaft
The Motor
Removal and Replacement of the Light Fixture
Removal and Replacement of the Wiring Harness
Removal and Replacement of the Needle Thread Tension
Removal and Replacement of the Hand Wheel and the Counterbalance
Removal and Replacement of the Bobbin Winder
Stitch Regulator
Removal and Replacement of the Throat Plate Position Bracket
Removal and Replacement of the Feed Lifting Rock Shaft
Feed Rock Shaft Assembly
Hook Driving Shaft
Removal and Replacement of the Hook Driving Shaft
Rotating Hook and Position Finger
Removal and Replacement of the Feed Lifting Rock Shaft Connecting Rod
Feed Forked Connection
Removal and Replacement of the Needle Bar
Needle Bar Vibrating Bracket
Needle Thread Take-Up
Removal and Replacement of the Cam Stack
Cam Selector Arm Shaft and Followers
Removal and Replacement of the Needle Bar Driving Arm
Bight Amplitude and Pattern Selector
Removal and Replacement of the Horizontal Arm Shaft
Hints for Adjusters and Mechanics
Run-In the Machine
Wiring Diagram for Machines of Class 401
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 401, 401A Machine!
*********
Note for users of “Singer Service Manual for Classes 401, 403 and 404”
:
Most people who use this manual also use an additional manual which includes service information that is directly applicable to machines of Classes 401, 403 and 404.
This additional manual is:
“
Illustrated List of Parts for Classes 401, 403 and 404
”
(available at our eBay listing #
182981402905
)
The additional “Illustrated List of Parts Manual” includes illustrations of every single component, screw, nut, spring, plate, rod, hinge, handle, arm, etc. Every internal part of the motor is shown. 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 Classes 401, 403 and 404
” manual is available at our eBay listing #
182981402905
.
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