Complete Service Manual
for
SINGER
SEWING MACHINES
of
Classes 630, 635, 636 and 638
*********
These Service Instructions are also Applicable
for
Singer Sewing Machines
of
Classes 640, 645, 646 and 648
*********
Includes:
Timing and Adjusting Instructions,
Inspection and Adjustment of Machine Parts,
Removal and Replacement of Machine Parts,
Diagrams, Illustrations,
and much more
*********
Singer Service Manual for Classes 630, 635, 636, 638. (photo 02)
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!
Description:
This listing is for a professional reproduction of the Singer Manufacturing Co. Service Manual for Classes 630, 635, 636 and 638 Sewing Machines. This service Manual is also applicable to Singer sewing machines of classes 640, 645, 646 and 648. 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 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 33-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:
Inspection and Lubrication
Removal and Replacement of the Arm Top Cover Hinge Assembly
Removal and Replacement of the Feed Lifting Rock Shaft
Removal and Replacement of the Feed Rock Shaft
Adjustment for End Play or Binding of the Feed Lifting Rock Shaft
Adjustment for End Play or Binding of the Feed Rock Shaft
Removal and Replacement of the Rotary Hook
Timing the Rotating Hook
Position the Hook to or From the Needle
Removal and Replacement of the Bobbin Winder Actuating Lever Assembly
Removal and Replacement of the Bobbin Driver
Adjustment of the Bobbin Driver
Removal and Replacement of the Needle-Thread Tension Assembly
Adjustment of the Needle-Thread Tension Assembly
Removal and Replacement of the Throat Plate Position Bracket
Disc Selector Assembly of Class 638 Machines
Removal and Replacement of the Disc Selector Assembly (630, 635)
Adjustment of the Disc Selector Assembly
Setting the Rear Selector (Bottom)
Setting the Front Selector (Top)
Removal and Replacement of the Disc Selector Assembly (636)
Adjustment of the Disc Selector Assembly
Setting the Needle Deflection and Needle Stop
The Cam Stack of Class 636 Machines
The Cam Stack of Class 638 Machines
Removal and Replacement of the Cam Stack (630, 635)
Timing the Cam Stack
Removal and Replacement of the Followers
Setting the Index Pins
Removal and Replacement of the Cam Selector Arm Shaft Return Spring (630, 635)
Removal and Replacement of the Cam Selector Arm Shaft Return Spring (636)
Removal and Replacement of the Bight Amplitude and Pattern Selector
Adjustment of the Bight Amplitude and Pattern Selector
Setting the Bight Amplitude Stop Plates
Removal and Replacement of the Needle Bar Driving Arm
Adjustment of the Needle Bar Driving Arm
Setting the Front-to-Rear Position of the Needle Bar Driving Arm
Setting the Left-to-Right Position of the Needle Bar Driving Arm
Adjusting the Needle Stop (630, 635, 636)
Needle Stop Adjustment - Right Needle Stop (638)
Needle Stop Adjustment - Left Needle Stop
Removal and Replacement of the Buttonhole Mechanism
Adjustment of the Buttonhole Mechanism
The Needle Positioner (630)
The Needle Does Not Position
Removal and Replacement of the Needle Positioner
Adjustment of the Needle Positioner
Trouble Shooting Guide
Chainstitch Adjustments
Machine Settings
Machine Adjustments
Checking Chainstitch Performance
Procedure for Meshing Gears (Cushion Drive Machines Only)
Needle Threader Storage and Use (630, 635, 636 and 638)
Removal and Replacement of the Needle Threader
Removal and Replacement of the Needle Threading Hook
Wiring Diagram (630)
Wiring Diagram (635, 636, 638)
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
Class 630, 635, 636, 638
Singer Sewing Machine!
Note:
As printed on the cover of this manual, the Singer Company notes that:
“Instructions appearing in the Service Manual for Class 600 Sewing Machines, generally apply to Machines of Classes 630, 635 and 636. Instructions for Class 603 Machines generally apply to those of Class 638.”
The “Singer Service Manual for 600 and 603” is available at our eBay listing # 182983132297 .
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