Singer NP050101 Bedienungsanleitung
SINGER
INDUSTRIAL
PRODUCTS
SERVICE
MANUAL
for
the
SINGER
Needle
Positioner
and
Underbed
Thread
Trimmer
Catalog
Numbers
NP050101
and
NP050103
I.
—
Fordetails,
call
your
Industrial
Sales
Office,
or writeThe
Singer
Company,
Industrial Products Division,30 Rockefeller Plaza, New York, N.Y. 10020
THE
SINGER
COMPANY
INDUSTRIAL
PRODUCTS
DIVISION
'A Trade
Mark
ofThe
Singer
Company
Copyright
©1967
by The Singer Company
All
Rights
Reserved
Throughout
the
World
Printed
in U.S.A.
From the library of: Superior Sewing Machine & Supply LLC
TABLE
OF
CONTENTS
Paragraph
Title
Page
SECTION
I -
GENERAL
INFORMATION
1-1 PURPOSE 1
1-2
FEATURES 2
1-3
BASIC COMPONENTS 2
SECTION
II -
INSTALLATION
2-1
GENERAL INFORMATION 3
2-2
PREPARATION
OF SEWING
TABLE
3
2-3
POWER
TRANSMITTER
3
2-4
OPERATING
SWITCHES
4
2-5
SEWING
HEAD
10
2-6
COMMUTATOR SENSOR 10
2-7
POSITIONER
CONTROL
CONSOLE
11
2-8
TRIMMER
PACK
ASSEMBLY.
13
2-9
T
RIMMER
SOLENOID
ASSEMBLY
16
2-10
THREAD
WIPER
19
SECTION
III -
OPERATION
3-1
GENERAL INFORMATION 20
3-2
PRE-OPERATING CHECKS 20
3-3
OPERATION 20
SECTION
IV -
SERVICING
AND
ADJUSTMENTS
4-1
GENERAL
INFORMATION
22
4-2
CLEANING INSTRUCTIONS 22
SECTION
V -
TROUBLESHOOTING
5-1
GENERAL
INFORMATION
24
5-2 Needle Not
Positioning
Properly
24
5-3
Faulty
Trimming
or
Double
Triggering
of
Solenoid
Assembly
...
24
5-4
Bobbin Thread
Cut
Too
Short
24
5-5
Needle
Thread
Cut
Too Short 25
5-6
Needle
Thread Pulls
Out
of
Needle
25
From the library of: Superior Sewing Machine & Supply LLC
LIST
OF
ILLUSTRATIONS
Figure
Title
Page
1 S
inger
Needle
Positioner
and
Underbed
Trimmer
Equipped
Sewing
Machine
1
2 Sewing Table
Top
4
3 Operating Switches 5
4
Heel
Switch
Installation 6
5Foot
Trim
Switch Installation.• 7
6
Knee
Trim
Switch Installation 8
7Slo-Sew Switch 8
8Operating
Switches
Assembly
and
Wiring
Data
9
9
Commutator
Sensor
11
lOA
&B Positioner Control Console 12
1lA &B
Trim
Pack Thread Picker Installation 14
nC
Trim
Pack Thread Picker Installation 15
IID
Thread
Picker
Adjustment
15
12 Setting of
Trimmer
Knife
16
13
Trimmer
Solenoid
Assembly
17
14A
&B
Trimmer
Solenoid
Adjustments
Procedure
18
15
Thread Wiper J9
16 Operating Controls
21
From the library of: Superior Sewing Machine & Supply LLC
Catalog
No,
NP050101 refers to
Machine
Nos, 281-41
and
281-43.
Catalog
No.
NP050103
refers to
Machine
No.
281-61.
SECTION
1 -
GENERAL
INFORMATION
PURPOSE
The
Underbed
Trimmer
and
Needle
Positioner,
figure
1,
has
been
developed
by
The
Singer
Co.
to
Increase
the
efficiency,
speed
and
accuracy
ofa
sewing
machine
operator
working
on apparel manufacturing.
The
operator
need
not position the
needle
and
cut
top
and
bottom
threads
by
hand.
Instead
the
operator
merely
touches a knee switch or a foot treadle and the positioner/trimmer does this auto
matically,
thus
accomplishing
automatic
positioning,
and
trimming
of
both
top
and
bottom threads of material being sewn.
TRIM
PACK
THREAD
PICKER
ASSEMBLY
(HIDDEN)
SOLENOID
PACKAGE
y
COMMUTATOR
SFWCJOR
POSITIONER
CONSOLE
Figure 1
..
. .SINGER Needle Positioner and Underbed
Trimmer
Equipped Sewing Machine
From the library of: Superior Sewing Machine & Supply LLC
1-2.
FEATURES
The Underbed
Trimmer
and
Needle
Positioner has the following advantages:
a.
INCREASED
PRODUCTION
....
Increased output because needle
positioning and underbed trimming of top and bottom thread is •
fast
and
automatic.
b.
FLEXIBILITY.
..
.When Positioner/Trimmer is not required,
the
unit
con be switched
off
and
the
sewing machine
can
be operated conventionally, since the unit does not require
special fittings.
c.
RELIABILITY.
...
Exclusive
solid-state
electronic
controls,
and quality components coupled with outstanding mechanical
design and construction throughout, provide the utmost in
reliability.
d.
SIMPLICITY
OF OPERATION... .Operators con be trained
quickly and easily.
Response
time is fast, and controls are
designed for fast easy operation. The unit can position one
stitch at a time - to "slowsew" (available as an option).
Operator may select either Needle Position
Down
- or
Needle
Position
Up
and Trim.
e.
EASE
OF MAINTENANCE... .Maintenance and periodic
inspection of the
Positioner/Trimmer
can be
accomplished
very easily.
The
electronic portion of the Positioner/
Trimmer
is incorporated into two compact, rugged printed
circuit
boards.
1-3.
BASIC
COMPONENTS
The Underbed Trimmer and Positioner consists of the following subossemblies:
a.
Trimmer Assembly
b.
Trimmer Solenoid Assembly
c.
Harness Assembly consisting of
(1) Heel Switch
(2) Trimmer Switch (foot or knee switch)
From the library of: Superior Sewing Machine & Supply LLC
(3)
Slow
Sew
Switch (optional)
d.
Needle
Positioner Assembly
e.
Commutator Sensor Assembly
f.
Thread
Wiper
Assembly
SECTION
n -
INSTALLATION
2-1.
GENERAL
INFORMATION
This
Section will describe the physical installation of the subossemblies that
make
up the complete Underbed
Trimmer
and Positioner.
CAUTION
:
This machine should operate from
110-115 volt source
only.
Electricity should be shut off during
installation
until
instructed
otherwise.
NOfE
Do
not attempt to operate
from
one leg of a 220 volt line.
2-2.
PREPARATION
OF SEWING
TABLE
(See Figure 2)
Package table will have the cutout for double v-belt pulley, the large holefor
the
needle
positioner
leads
and the elongated
hole
for
the
thread
wiper
cable
and
lamp cord.
NOTE
For field
installation,
dimensions for
cutout
and holes
are
shown in Figure
2.
2-3.
CLUTCH
MOTOR
If the Underbed Trimmer and Positioner assemblies
are
to be added to a standard
sewing
machine
and
table, it
will
be
necessary
to
remove
the
motor
and
mount
it exactly 1 inch (1") to the left of the standard position.
From the library of: Superior Sewing Machine & Supply LLC
MACH
NE
3-1/4
1-1/2
DIA.
HOLE
RIGHT
SIDE
OF
TABLE
3/8
MIN
BELT
SLOT
8-15/16
4-7/8
TABLE
5-13/16
I
(3)
(.228
DIA.
HOLES)
NO.
I
DRILL
I"
DEEP
MIN.
Figure
2,...Sewing
Table
Top
2-4.
OPERATING
SWITCHES
All
operofing
switches
ore
shown
in the illustration.
Figure
3. It
should
be
noted
that the
sewing
machine table
has
the
Pitman
rods,
basic foot treadle and
linkages to the
power
transmitter, in place.
From the library of: Superior Sewing Machine & Supply LLC
KNEE
TRIMMER
SWITCH
TREADLE
SWITCH
TRIMMER
FOOT
SWITCH
SLOW-SEW
SWITCH
TREADLE
Figure
3...
.OperaHng Switches
2-4-1.
HEEL
SWITCH.
. .The purpose of the heel switch is to activate the needle
positioner. Since the heel switch is
mounted
on the Pitman rod, when the
treadle is firmly heeled, the heel switch is activated. If the heel switch has
not
been
mounted on
the
Pitman
rod,
refer to Figure 4 for its proper position
and proceed as follows:
a.
Remove
clamp
from
standard Pitman rods. Pitman rod should
be mounted
at
extreme outside position of power transmitter
b.
Install
heel
switch
as shown in Figure
4.
From the library of: Superior Sewing Machine & Supply LLC
2-4-2.
TRIM
SWITCH
(See Figure 3)
The
Trim
Switch
isa
universal
type that can be
used
either for knee operation,
mounted
under table or as a foot switch
when
slipped on treadle
rod
to left of
treadle.
a.
Foot
Trim
Switch
-
mounted
to
the
left
of
the
treadle.
When
treadle is firmly heeled and the foot
trim
switch is depressed,
the machine will position up and trim.
b.
Knee
Trim
Switch
-
mounted
under
the
table.
When
activated
by
the
knee,
the
machine
will
position
up
and
trim.
If the
trim
switch has not been installed on the sewing table proceed as
follows:
PITMAN
ROD
(TO
MOTOR)
SCREW
ADJUST
PITMAN
ROD
(TO
TREADLE)
s
Figure
4...
.Heel
Switch Installation
"a"
set
screw
COLLAR
HEEL
PRESSURE
adjust"
From the library of: Superior Sewing Machine & Supply LLC
2-4-2-1.
Foof
Type
(See
Figure
5)
(a)
Loosen
clamp
screws
for freadle support
rod
and
slide to
right.
(b) Slip foot switch over rod and locate several inches to
left
of
treadle
to suit
operator.
2-4-2-2.
Knee
Type
(See
Figure
6)
(a) Locate and pilot drill holes for
wood
screws according
to
location
shown in Figure
6.
(b) Mount switch bracket with
wood
screws, "B".
(c)
By
loosening
clomp
screws
"A", the
switch
may
be
moved to the left or right or rotated forward or bock
to suit operator. Tighten clomp screws.
(d)
By
loosening
screws
"C", the knee
switch
may
be
moved
up or
down
to suit operator. Tighten clamp
screws.
2-4-3.
The
Slo-Sew
Switch
is physically the
same
as the
trim
switch
and
mounts
on treadle rod to the right of the treadle. (See Figure 7)
TRIMMER
SWITCH
TREADLE
Figure
5...
.Foot
Trim
Switch Installation
From the library of: Superior Sewing Machine & Supply LLC
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1
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