Singer 328 User Manual

coNrfNTs:
1-I MaLh Lne Bodv
------------
l-2 Csrridge
(1ns
ide)
--
1-3 Carriage
(Back)
-----------
1-4 Arn
---'-r----
2.
liOW A
NEEDIE FOR.]'{S A STITCH
3.
IfECIIANISM
OF NEEDLE SELECTION A.liD FUNCTIONS
OF EACH I{AIN PART
-------tli-
E
3-1 Punch Card
------------
8
3-2 Pattern Unit
--*-^-------
--------
8
3-3 Drun
---*----
------
9
4. IIETIIODS 0F DISASSIMBLY, REASSEIIBLY AND ADJUSTITENT
-:-:----------------
13
4-1 Disassenbly of Carriage
(up
to Carlrage coverf
----------------------
13
4-2 Disassembly
of Machine Body
(down
to Case
Cover)
---------------------
17
5. CARRTAGE ADJUSTIIENT
----------------
22
5-1 Drum Adjuslnent
--------------
------
22
5-2
Clear Wire Adjustnent
--------------
27
5-3 Course
Stripes
---------
------------
28
5-4
The
Measurement Betr'reen Needle Guide & Middle
Course Carn
-------------
31
5-5 Joining Carriage
PlaEes A & B
----------- ----------
32
5-6
Dru$ Assenbly
----------------------
34
6. CARRTACE
ASSEMBLY
-------- ----------
36
3
6
t
1,
7. KNIT
RADAR & ?ATTERN UNIT ASSN}ELY
&
DISASSEMBLY
-__------_--_-_----..
40
7-1
How
to
Dlsasseoble the
Knit Radar Unit
-------'----
7-2 How to Disassenble the Patter:n Unit
------------
B. AI)JITSTMENT 6
RElIol,'liTING 0F PATTERN UNIT
------------------------------
43
40
41
I
i
8-1 Ho\r to Adjust
or Repair the ?atlein
Unit
------------
43
8-2 Remounring of Pattern Unit
------------ -------------
47
8-3 ltow to
Reassenble lhe Bracer
A
---------------
-------
48
8-4 Adjustlng
the Clearance Belween
the Touch
Lever and Mai.n Drum Piece
--
49
8-5 Adjostnent
of Feeding
Lever
-----------
--------------
50
9.
ADJUSTMENT &
}IEASURE}ANT OI EACI1
PART OF NEEDLE
BED
------._-_-_--_-_-
52
9-1 Dlnenslon Betueen
Rail & Rack
----------
-------------
52
9-2
Dir0ension
L
(fron
Rail
to
tips
of Sinkers)
-------- -----------
54
10.
REASSEMBLY OF ITACHTNE
BoDY
------------ -------------
58
t0-1 How to Reassemble the Knit
Radar Unit
------------
-------------
58
10-2
Reassenbly of the
Needle Bed to
the casemen!
-------------------------
59
11. CORRECT ?OSITION
OF AR}f TOR NEI1DLE
& NEEDLE BED
----------------------
62

Singer 328 Specifications

General

Brand	Singer
Model	328
Category	Sewing Machine
Language	English

Summary

NAME OF MACHINE PARTS

Machine Body

Identifies main structural components of the machine's central unit.

Carriage (Inside)

Details internal components of the carriage assembly.

Arm

Outlines the parts and functions of the machine's arm.

Carriage (Back)

Describes external components of the carriage.

HOW A NEEDLE FORMS A STITCH

MECHANISM OF NEEDLE SELECTION AND FUNCTIONS OF EACH MAIN PART

Punch Card

Explains the role and nature of punch cards in pattern selection.

Pattern Unit

Describes the function of the pattern unit in reading punch cards.

Drum

Details the drum's function in memorizing and selecting needles based on patterns.

METHODS OF DISASSEMBLY, REASSEMBLY AND ADJUSTMENT

Disassembly of Carriage (up to Carriage Cover)

Step-by-step guide for disassembling the carriage cover.

Disassembly of Machine Body (down to Case Cover)

Instructions for disassembling the main machine body.

CARRIAGE ADJUSTMENT

Drum Adjustment

Procedures for adjusting the drum mechanism for proper operation.

Clear Wire Adjustment

Guide for adjusting the clear wire for memory clearing function.

Course Stripes

Explains how to identify and correct course stripes (stitch variations).

Measurement Between Needle Guide & Middle Course Cams

Specifies clearance requirements between needle guide and cams.

Joining Carriage Plates A & B

Instructions for correctly joining carriage plates A and B.

Drum Assembly

Step-by-step guide for assembling the drum unit.

CARRIAGE ASSEMBLY

KNIT RADAR & PATTERN UNIT ASSEMBLY & DISASSEMBLY

How to Disassemble the Knit Radar Unit

Procedure for safely removing the knit radar unit.

How to Disassemble the Pattern Unit

Guide for detaching the pattern unit from the machine.

ADJUSTMENT & REMOUNTING OF PATTERN UNIT

How to Adjust or Repair the Pattern Unit

Steps for adjusting and troubleshooting the pattern unit.

Remounting of Pattern Unit

Instructions for reattaching the pattern unit correctly.

How to Reassemble the Bracer A

Detailed steps for reassembling the bracer A component.

Adjusting the Clearance Between the Touch Lever and Main Drum Piece

Guides adjustment of clearance for proper pattern transmission.

Adjustment of Feeding Lever

Procedures for adjusting the feeding lever for correct yarn feed.

ADJUSTMENT & MEASUREMENT OF EACH PART OF NEEDLE BED

Dimension Between Rail & Rack

Specifies and explains measurements for rail and rack alignment.

Dimension L (from Rail to tips of Sinkers)

Details measurements for sinker tip to rail distance.

REASSEMBLY OF MACHINE BODY

How to Reassemble the Knit Radar Unit

Instructions for re-installing the knit radar unit.

Reassembly of the Needle Bed to the Casement

Guide for attaching the needle bed back to the machine case.

CORRECT POSITION OF ARM FOR NEEDLE & NEEDLE BED

P.N. Clearance

Defines and explains the P.N. clearance measurement.

P.S. Clearance

Details the P.S. clearance between sinkers and fabric presser.

Y.S. Clearance (the position of the Yarn Feeder)

Specifies clearance for the yarn feeder's position.

Adjustment of Auxiliary Arm (W.S. & W.P. Adjustment)

Covers adjustments for the auxiliary arm's WS and WP settings.

HOW TO ADJUST WHEN STITCHES DROP DURING KNITTING

KNIT RADAR (CONTOUR)

Frame (L) Unit

Identifies components of the left frame unit of the knit radar.

Frame (R) Unit

Identifies components of the right frame unit of the knit radar.

Knit Radar (Contour)

Explains the function of the knit radar contour device.

Mechanism of Row Scale

Details the operational mechanism of the row scale.

Mechanism of Control Unit

Describes the workings of the control unit.

How to Adjust the Row Scale

Provides instructions for adjusting the row scale.

Knitted Garment Size vs. Pattern Paper Size

Addresses discrepancies between knitted garment and pattern sizes.

Pattern Paper Sideways Slip

Explains causes and fixes for pattern paper slipping sideways.

Crooked Pattern Paper Feed

Addresses issues with the pattern paper being fed crookedly.

CAUSES AND REMEDIES FOR MAIN MACHINE FAILURE

Both Lengths of Fabric Differ

Addresses uneven fabric lengths due to dimensional differences.

Stitches Float

Discusses causes and remedies for floating stitches.

Fabric Drop on Both Edges

Explains issues causing fabric drop on both edges.

Open Holes in Knitted Fabric (Dropped Stitches)

Details causes of open holes and dropped stitches.

Course Stripes (Irregular Traverse Stitches)

Identifies causes for irregular traverse stitches.

Poor Needle Selection Throughout Fabric

Discusses causes of consistent poor needle selection.

Needle Butt Collisions with Carriage

Explains issues arising from needle butt collisions.

Weaving Cannot Be Achieved

Addresses why weaving patterns might not be achievable.

Carriage Heavy During Operation

Explains reasons for a heavy carriage during operation.

Needle Hook Bending

Discusses causes for needle hooks bending easily.