iSP M2000 User manual

OWNERS
MANUAL
M2000
ISP Stitching & Bindery Products
A Division Of Samuel Strapping Systems
ISP Stitching & Bindery Products

Section 5 MAINTENANCE, TROUBLE
SHOOTING AND
ADJUSTMENT
8. General
8. Recommended Spare Parts
8. Cleaning and oiling
8. Stitching Adjustments
8. To Equalize Both Legs of Stitch
9. Trouble Shooting-M2000 Head
12. Insufficient or Excessive Compression
12. Clincher
13. Head/Clincher Alignment
13. Bender bar
14. Bender bar Friction Plug
14. Driver Bar
15. Bender Bar Latch
15. Grip, Grip Release Slide and Faceplate
16. Wire Cutters
17. Wire cutter Operating Slide
17. Proper Wire
17. Rotator
18. Wire Straighteners
19. Supporter
19. Tension Pawl
20. Dismantling M2000 Head
Section 6PARTS LIST
22. M2000 Head Stitcher
Section 1 INTRODUCTION
1. Model and Serial Number
2. Product Specifications
Section 2 SAFETY PRECAUTIONS
AND PROCEDURES
3. Safety
3. Safety Guards/Cover
Section 3ASSEMBLIES,
LUBRICATION,
INSTALLATION
4. Before Unpacking
4. After Unpacking
4. Assembly
4. Threading wire and adjusting wire
straighteners
5. Lubrication-Felt Pads
6. Lubrication-Stitcher Head
Section 4OPERATION
7. General Stitching
7. Changing Work Thickness
USE ONLY REPLACEMENT
PARTS DESIGNED AND
MANUFACTURED BY ISP
SPECIFICALLY FOR YOUR
M2000 STITCHER
CONTENTS

1
INTRODUCTION
Here are the instructions on
how to install
operate, maintain, and make
repairs on your...
M2000 STITCHER HEAD
The M2000 Stitching Head has been engineered and developed to provide you with the finest equipment
available for your stitching needs. With proper care and maintenance it will give you years of satisfactory
efficient service. This manual shows you how to get top performance from your stitcher and is divided into 6
major sections.
Read the M2000 Manual thoroughly. Study it carefully. Best stitching performance will be assured, if all the
adjustments are made as instructed.
When ordering parts or requesting information, please state: Quantity required, part number, part name,
model, wire size, crown width, stitcher head part number, and stitcher head serial number.
Stitcher Head Serial Number____________________
Stitcher Head Part Number______________________
Stitcher Head Crown Width ____________________
Stitcher Head Wire Size____________________
Section 1

2
PRODUCT SPECIFICATIONS
Unit Weight: Lbs.
4.5 lbs.
Unit Envelope Size: Height Length Width
M2000 Head Without Wire Guide: 11 in. 3.12 in. 1.82 in.
Notes

3
DANGER
KEEP HANDS CLEAR OF
STITCHING AREA
CAUTION
FOR YOUR SAFETY, MAKE
SURE ALL COVERS ARE
PROPERLY IN PLACE BEFORE
OPERATING MACHINE
Section 2
SAFETY PRECAUTIONS
AND PROCEDURES
SAFETY
1. Make sure electrical power is turned off before
performing any adjustment or maintenance.
2. Keep hand, tools, hair, and clothing clear of
stitching area.
3. Become familiar with the moving components
of your machine. Keep fingers away from areas
that could pinch or cut.
4. Wear adequate safety equipment for eye and
face protection. Observe your plant safety
rules.
5. Practice good housekeeping in your work
area. Keep it as clean and uncluttered as
possible.
6. A well maintained machine is a safer machine.
Clean and lubricate the machine at regular
intervals. Check machine daily for broken or
worn parts. Replace as necessary. DO NOT
attempt to operate the machine if a part is
broken.
7. Route all electrical cables away from pedestrian
transportation lanes.
8. Make sure adequate safety guards and covers
are in place. If you are unsure how to safely
operate or maintain your Stitcher, contact your
Service Representative.

4
Section 3
ASSEMBLY,LUBRICATION,
INSTALLATION
Note:
These instructions must be followed to insure proper
installation, efficient operation and the prevention
of serious damage to your stitcher.
Before Unpacking:
Examine the outside of the crate or carton for any
visible damage. If damaged DO NOT UNPACK
THE STITCHER. Notify the carrier who deliv-
ered the stitcher.
After Unpacking:
Examine your stitcher carefully for any damage in
transit. If damaged, DO NOT INSTALL THE
STITCHER. Notify your nearest representative and
the carrier who delivered your stitcher.
Make certain that you get a signed copy of the
Carrier Inspectors Report of the damage incurred.
ASSEMBLY
1. Clamp or bolt the M2000 head to your machine
2. Install Wire Guide Spring into wire guide
bracket of M2000 Head.
THREADING WIRE AND
ADJUSTING WIRE
STRAIGHTENERS (See fig. 1)
1. Draw wire (Index A) by hand, from the coil.
2. Thread the wire through the slot (Index B) at
the end of the wire guide spring, , through the
wire guides (Index C), between the thin and
thick felt wire wipes (Index D), through the
upper wire straightener (Index E), and through
the lower wire straightener (Index F).
A (From wire coil)
C
H
G
J
K
F
B C
E
3. Release the rotator operating spring (Index H)
from the rotator and swing it to the left.
Remove Rotator (Index K).
4. Thread the wire between the tension pawl and
tension roll (Index G). Feed the wire through
the wire cutter lead-in hole (Index I) in the
bottom of the face plate.
5. Push grip post to left to open the grip (Index J).
Insert wire and release the post so that the grip
engages the wire for feeding into the rotator.
6. To check adjustment, hold open grip (Index J
and pull about 1 1\2 feet of wire from below
face plate. Cycle machine once by hand to cut
wire. Cycle machine again by hand to observe
wire straightness. The wire (Index L) should
point straight down, prior to being cut.
I
(CTTT2605 Scene 3, Scene 4)
Figure 1
D
L

5
7. Adjust the upper wire straightener, beginning at
position shown, (Index E) so that the wire points
straight down. Adjust the lower wire
straightener, beginning at the 3:00 o'clock
position, (Index F) so that the wire (Index L)
feeds straight down.
8. Replace the rotator and rotator operating spring.
NOTE:
When changing coils or wire sizes, check
straighteners to insure proper wire feed.
CAUTION
Do not operate stitcher until
operating instructions have been
read and understood-do not
operate stitcher at anytime without
work under the head.
FELT WIPE PADS
LUBRICATION
AND MAINTAINANCE:
(FIGURE 2)
IMPORTANT! In order for the stitchers to operate
properly, the felt wire wipes MUST be rotated and
dampened with SAE 20W oil before each new spool
of wire (50,000 to 70,000 stitches). Replace felt
pads when they become so dirty that they cannot be
rotated to a clean spot.
Figure 2
Dirty area of pads has been
slightly rotated so that a clean
area of pads can be used for the
next wire spool.
Rotate
1. After every wire
spool, rotate the
dirty area of the
pads slightly so that
a clean area can be
used for the next
wire spool.
(CTTT2605 Scene 7)
2. Dampen both pads
(about 30 to 40
drops) using an SAE
20W oil.

6
Typically, the 1/2 inch crown stitcher will run for
1,000,000 cycles without additional lubrication.
However, the following procedure used after each
spool of wire will assure optimum life and
performance. Use ISP lubricant #CA9640.
A. Inject lube into hole, or remove and lube shafts.
B. Wipe area clean and inject a small amount of
lube into cam area.
C. Remove rotator, wipe rotator clean and lube
rotator body.
D. Apply lube to rotator ramp.
STITCHING HEAD
LUBRICATION:
(FIGURES 3 & 4)
Figure 3
H
B
C
A
D
E
F
G
(CTTT2605 Scene 6)
E. Wipe clean inside of rotator holder.
F. Inject a small amount of lube into cam area of
driver bar.
G. Inject lube into cutter operating slide.
H. Wipe driver clean, and apply a light coating of
lube.
After prolonged use (or storage) accumulations of
wire dust, dirt, or other contaminants can mix with
the stitcher lubricant. This will reduce the
lubricant's effectiveness. The following procedure
is recommended every 1,000,000 cycles.
1. Disassemble the head and clean all parts.
2. Lightly lube all sliding surfaces using ISP
lubricant #CA9640.
3. Double check lube points A through H.
Figure 4
(CTTT2605 Scene 5)

7
Section 4
OPERATION
General:
After having properly installed and set up the ma-
chine, it is now ready for stitching. It is recom-
mended that each operator be instructed as to cor-
rect operating procedure and normal adjustments
necessary for varying work conditions.
WARNING
Prevent accidents by following these rules:
1. Do not put your hands near area to be
stitched when machine is operating.
2. Turn the power off when the stitcher
is not in use.
CAUTION
AVOID DAMAGE TO YOUR
STITCHER BY FOLLOWING
THESE RULES:
1. Never operate your stitcher with wire
feeding unless you have work material
between the clinchers and formers.
2. Do not drive one stitch on top of an
other.
Changing Work Thickness:
(Figure 5)
Changing work thickness will probably require a
change of the wire draw length used to make a
stitch. This is done by raising or lowering the face
plate. Change face plate position as follows:
1. Switch off power, loosen the face plate screw
(Index A).
2. Turn grip release lever (Index B) clockwise to
raise face plate for more wire draw or counter
clockwise to lower face plate for less wire draw.
NOTE: Raising face plate too high may: (1.)
Prevent the grip from closing and drawing wire;
(2.) Prevent proper compression resulting in a
loose stitch.
3. Retighten faceplate screw.
A
B
(CTTT2605 Scene 5)
Figure 5

8
A
C
D
E
Section 5
MAINTENANCE,TROUBLE
SHOOTING AND
ADJUSTMENTS
General
The M2000 Stitcher is a friction-type head which
depends on smooth sliding friction and proper tim-
ing to function correctly. Preventative maintenance
will go far to insure trouble-free operation. Avoid
production down time by keeping your stitcher lu-
bricated and in top working condition at all times.
Recommended Spare Parts
Like any equipment that has moving parts, certain
parts of your stitcher will be subjected to more
wear than others and require replacement. The fol-
lowing listing includes all the parts required for
minimum maintenance and good operation.
PART NAME QTY.
Wire Cutters 2
Grip 1
Grip Spring 1
Tension Roll Clip 2
Rotator 1
Clincher Points 2
Caution
MAKE ALL ADJUSTMENTS
WITH THE POWER OFF AND
THE STITCHING HEAD IN
NEUTRAL POSITION! (Fig. 6)
In neutral position, the wire grip assem-
bly (Index A) is stopped at the top of the
slot in the face plate.
Stitching Adjustments
Best stitching performance will be assured if all
adjustments are made so that you get the following
results:
1. Good Cut-Off
2. Uniform Wire Draw
3. Equal Leg Length
4. Proper Clincher Alignment
5. Sufficient Compression
To Equalize Both Legs of Stitch
(Figure 7)
1. Loosen the wire guide locking bolt (Index C).
2. Turn adjusting screw (Index D) clockwise to
shorten left leg of stitch; counter clockwise to
lengthen left leg.
3. Tap bracket (Index E) down before tightening
screw (Index C).
(CTTT22605 Scenes 5 & 9)
(CTTT2605 Scene 8)
Figure 6 Figure 7

9
M2000 Head Trouble Shooting
HERE'S HOW A PERFECT STITCH LOOKS
Should stitches appear in any form other than illustrated, one or more
kinds of mechanical trouble may have caused the malformation. The
possible causes and remedies are given for each kind of mechanical trouble
and are listed under each section. The remedies are indexed to the Ad-
justments Section which gives more detailed information about your
stitcher, the mechanical trouble that may occur and suggested remedies.
Unless you recognize the correct cause, check each possible cause given.
TROUBLE POSSIBLE CAUSE REMEDY
A. Defective Stitches
See "To Equalize Both Legs of
Stitch" Page 8
"H" Page 15
"H" Page 15
Replace
"M" Page 18
"F" Page 14
"O" Page 19
"H" Page 15
1. One or both legs buckled.
NOTE: Since buckled legs are
often concealed in the work and
may appear the same as a short
leg, always remove two or more
stitches to see which is occur-
ring.
1. Clincher is worn or improperly
aligned.
2. Insufficient compression.
3. Unequal leg length
1. Leg Lengths not adjusted
properly
2. Gripper is worn or dirty
3. Grip release slide is worn
4. Broken wire guide spring
(Figs 20 page 22)
5. Excessive tension on wire
straightener
6. Worn Driver bar
7. Worn Tension Pawl or weak
tension pawl spring
8. Weak or broken grip spring
3. Length of one leg varies
"A Page 12
See "To Equalize Both Legs of
Stitch" Page 8
"I" Page 16
"K" Page 17
"D" Page 13
4. Burred stitch leg.
5. Incorrect wire size.
6. Worn bender bar.
2. Wrinkled crown.
"B,C" Page 12,13

10
TROUBLE POSSIBLE CAUSE REMEDY
4. Corner of crown distorted or
fractured 1. Excessive compression
2. Broken driver end
3. Worn bender bar
4. Clincher improperly aligned
or worn
5. Incorrect wire size
"A" Page 12
"G" Page 15
"D" Page 13
"B,C" Page 12,13
"K" Page 17
5. Stitch crown not flat and legs
not bent into work 1. Insufficient compression "A" Page 12
6. One or both legs turn out 1. Clincher improperly aligned
2. Dull cutters
7. Flat piece of wire "L" Page 17
"M" Page 18
"L" Page 17
"L" page 17
8. Stitches come out in pieces "L" Page 17
"L" Page 17
"M" Page 18
"K" Page 17
"D" Page 13
9. Both stitcher legs are either
too long or too short See "Changing Work Thickness"
Page 7
"C" Page 13
"I" Page 16
1. Rotator is dirty
2. Improperly adjusted lower wire
straightener
3. Broken or worn rotator
4. Improperly aligned rotator
Face plate not adjusted properly
1. Improperly aligned rotator
2. Weak rotator operating spring
3. Improperly adjusted upper wire
straightener
4. Incorrect wire size
5. Wire jammed in bender bar
grooves
M2000 Head Trouble Shooting

11
M2000 Head Trouble Shooting
REMEDY
POSSIBLE CAUSE
TROUBLE
B. WIRE BUCKLES
1. Wire buckles above the grip
and below the tension pawl 1. Worn driver bar
2. Worn bender bar latch
3. Worn or broken bender bar
friction plug and/or spring
"F" Page 14
"G" Page 15
"E" Page 14
2. Wire Buckles above the
wire cutters and below the
grip
1. Improperly aligned rotator
2. Worn or broken wire cutters
3. Burrs on rotator
4. Improperly adjusted lower
wire straightener
5. Worn or broken wire cutter
operating slide
6. Wire cutter slot in face plate
worn
"L" Page 17
"I" Page 16
"L" Page 17
"M" Page 18
"J" Page 17
"I" Page 16
C. GRIP
1. Grip does not close 1. Face plate is too high See "Changing Work Thickness"
Page 7.
(CTTT2605 Scene 10 VA)
(CTTT2605 Scene 10 VB)

12
A. Insufficient or Excessive
Compression
Proper compression of work between the clincher
and the bender bars is necessary so that the stitch
penetrates the work material and clinches correctly.
To test for compression, drive several stitches into
sample work material. With proper compression,
stitches hold the work together firmly and the
clinched legs do not overlap. In the following in-
stances, either one or all of the conditions may
exist: with insufficient compression, stitch legs over-
lap, crown of the stitch is fractured, and the work
mutilated. The method for obtaining proper wire
draw and compression is detailed in the Operation
Section on Page 7 under the heading, "Changing Work
Thickness".
B. Clincher (Figure 8)
The purpose of the clincher is to turn the legs of the
stitch back after they have penetrated the work ma-
terial. There are two types of clinchers:
1. Solid (stationary) Type-makes a loop clinch.
2. Activated (moving) Type-makes a flat clinch.
With the Solid (stationary) Type clincher, the legs
of the stitch must strike the clincher at the same
time and with equal spacing from the outside edges
of the grooves. The grooves in the clincher should
be smooth. Any interference (particularly worn or
pitted grooves), which change the original radii,
will cause the stitch legs to buckle and/or the cor-
ners of the crown to fracture.
With the Activated (moving) Type clincher, the
stitch legs must enter the clincher at the same time
and with equal spacing from each side. When the
CAUTION
Turn Power OFF Before
making Any Adjustments
stitch legs have penetrated the work material, the
moving clinchers are raised to bend the legs to-
wards each other and up flat against the work. The
clincher points must bend both legs of the stitch
against the work with the same force. Clincher
points must always move freely and not bind. Dirt,
wire chips, etc. will cause the points to bind.
The clincher points are in a retracted position in the
clincher box until the stitch legs penetrate the work
material. After the legs penetrate, the clincher points
move upward to give a neat, flat clinch against the
bottom surface of the work material. If the clincher
points remain in the up position, the legs of the
next stitch cannot penetrate the work material, caus-
ing the stitch legs to buckle and/or the corners of
the crown to fracture. Examine the clincher points,
clincher slide for possible binding. Clean and oil.
If clincher points rise to high, they fracture the stitch
legs and/or mar the work. If the points do not rise
high enough, the legs will not clinch flat. Adjust
the height of the clincher points. For most work
the clincher points should rise to be level with the
top of the clincher housing.
ACTIVATED
SOLID
STITCH
STITCH
(SK852F)
Figure 8

13
D. Bender Bar (Figure 11)
The bender bar bends the wire over the rotator and
forms it into an unclinched stitch. The legs of the
stitch are guided towards the work material by the
bender bar grooves. The legs of the unclinched
stitch should be perpendicular to the crown. When
the bender bar grooves become worn, the legs tend
to flare out (Figure 11) as they emerge from the
grooves. This causes the legs to strike the clincher
improperly. As a result, one or both legs will
crumple and a broken driver bar or a broken bender
bar can result. If the lower end of the bender bar
grooves become chipped, it will not support the wire
and may cause the stitch to break at the crown. Re-
place the bender bar assembly (See "G" page 15 or
Fig. 12). Other bender bar functions are related to
wire cutting ("I" page 16), and driving ("F" page
14).
2. To adjust for side-to-side alignment: (Fig. 10)
a. Turn power off. Cycle the stitcher by hand
until legs of the stitch appear just below the
bender bar to determine how far the head or
clincher should be moved to the side.
b. Loosen clincher plate binder nuts (Index A).
c. Move clincher to left or right as required.
d. Tighten binder nuts.
C. Head/Clincher Alignment
(Figure 9, 10)
To test alignment: Drive several stitches into a sec-
tion of material identical to that which is to be
stitched. The clinched legs should be identical and
aligned with each other. If the legs are not in align-
ment make one of the following adjustments:
1. To adjust for front-to-rear alignment: (Fig. 9)
a. Turn power off. Cycle the stitcher by hand
until legs of the stitch appear just below the
bender bar to determine if the head should
be moved to the front or rear.
b. Remove stitcher from machine.
c. Turn the head aligning screw (Index D)
clockwise to move the head backward; coun-
terclockwise to move the head forward.
d. Install stitcher head on machine.
D
A
(SK852I)
Figure 11
(CTTT2605 Scene 11)
Figure 9
(CTTT2605 Scene 12)
Figure 10
Inject lube into cutter operating slide.

14
3. In conjunction with the grip release slide (Index
D), it controls the movement of the bender bar
latch (Index E) that opens and closes the grip
(Index F).
If the notches (Index G) at the top left side of the
driver bar become worn, the grip will not remain
open on the upstroke. As a result the wire feeds
backwards and buckles above the grip and below
the tension pawl. Worn notches can also cause
uneven wire draw. Replace the driver bar.
The notches shown on left side of driver bar play an
important part in function of bender bar assembly
therefore, corners should be free of dirt and notches
not marred.
The driver bar rides within the bender bar grooves
as part of the bender bar assembly. As this assem-
bly reaches the lower contact point of the cam in the
grip release slide, the bender bar latch is forced
inward, releasing the wire grip and permitting the
bender bar assembly to continue downward with
the end of the driver riding on top of the formed
E. Bender Bar Friction Plug
And/Or Spring (Fig.12)
Two parts furnish pressure to coordinate movement
of driver bar and bender bar. If pressure is insuffi-
cient, proper timing is not maintained for the action
of the grip. As a result, wire feeds backwards.
Replace the plug and/or spring.
To replace bender bar friction plug and/or bender
bar friction spring:
1. Remove bender bar assembly by following
steps 1 through 18 of "Dismantling M2000
Stitching Head", Pages 20 and 21.
2. Remove bender bar friction bushing (Index A).
Bender bar friction plug (Index C) and spring
(Index B) will be released forward from bender
bar assembly.
3. Replace plug and/or spring and reassemble.
F. Driver Bar (Figure 13)
The driver bar (Index A) has several functions:
1. It imparts the downward thrust from the driving
slide assembly (Index B) to the bender bar
assembly (Index C).
2. It returns these parts to the neutral position on
the upstroke.
AB
C
A
B
C
D
E
FG
Figure 13
(CTTT2605 Scene 13)
Figure 12
(CTTT2605 Scene 14)

15
stitch. When the bender bar is stopped against the
work material, the driver bar continues downward
to exert pressure on the crown of the stitch, driving
it through the work material.
If the end of the driver bar is chipped it allows the
legs of the stitch to back up into the broken area.
This causes the corner of the crown to fracture or a
"spike" section to protrude above the crown. A
chipped driver bar is usually the result of driving a
stitch on top of another stitch. A worn driver often
causes deformed stitches or fracturing at the corners
of the crown.
G. Bender Bar Latch
The bender bar latch opens and closes the grip and
is actuated by the grip release slide and driver bar.
If the contact points of the latch become worn, tim-
F
ing of the grip is erratic and uneven wire feed re-
sults. A dirty latch will decrease preassure of the
grip on the wire. This causes wire slippage. Clean
or replace the latch.
H. Grip, Grip Release Slide and
Face Plate: (Figure 14)
The grip spring (Index A) exerts pressure on the
benderbar latch (Index B) to close the grip (Index
C) at the start of the down stroke. The grip release
slide (Index D) actuates the bender bar latch at
point X to open the grip after the correct amount of
wire has been fed to make a stitch. The serrated
teeth on the grip must be sharp or slippage will
occur, producing uneven wire draw.
B
C
D
E
X
A
Figure 14
(CTTT2605 Scene 15)

16
When the face plate (Index E) is adjusted (See
"Changing Work Thickness", page 7) a pivotal ac-
tion (at point F) changes the position of the grip
slide. When the face plate is raised, it moves the
grip release slide down. The gripper can then re-
main closed longer, on the down stroke, feeding more
wire for the stitch. When the face plate is lowered,
it moves the grip release slide up. The gripper will
open sooner on the down stroke, feeding less wire
for the stitch.
If the grip is weak, uneven wire draw will result.
Replace the grip spring. If the contact points on
the grip release slide and/or the bender bar latch
are worn, wire adjustment will not remain accurate.
The face plate stops the bender bar assembly at the
top of its stroke and allows the bender bar latch to
close the grip. When the face plate is too high, too
much of the upstroke has been used before the
bender bar hits the face plate. In the remaining
portion of the upstroke, the driver bar cannot con-
tinue upward enough to release the bender bar latch
so that it can close the grip.
I. Wire Cutters: (Figure 15)
The purpose of the wire cutters is to shear the wire
cleanly. There are two wire cutters, upper and
lower. The upper wire cutter (Index A) receives
wire from the grip through the wire cutter lead-in-
hole (Index B). It also serves as the cutoff die.
The lower wire cutter (Index C) is the cutting knife.
If the cutter breaks, it will cover the lead-in hole.
This prevents the wire from feeding into the rota-
tor. If the cutting surfaces become worn, burrs will
result on the end of the wire. This prevents the
wire from feeding into the rotator. As a result, the
wire buckles between the cutters and the wire grip.
Reverse, interchange or replace the cutters.
To Reverse, Interchange or
Replace the Wire Cutters:
1. Loosen both face plate retaining clips (Index
D) at bottom of bonnet.
2. Spring the face plate out 1/8" while holding
the cutter slide in position (Index E).
3. Slide the cutters out to the left.
4. Reverse, interchange or replace the cutters.
NOTE
While installing the cutters, make sure that (1): lip
on upper cutter (Index F) fits into the recess behind
the face plate (Index G) and (2): that the lip on the
bottom cutter fits into the slot (Index H) in the wire
cutter operating slide (Index I).
The wire cutter operating slide actuates the lower
wire cutter. If the slide is worn or broken, the wire
cutter is not actuated. Replace the operating slide.
The slot in the lower part of the face plate contains
the wire cutter and maintains a close fit for wire
shearing. If this slot becomes oversized, the wire
will not be cut off. Replace face plate. To Re-
place Face Plate (See Steps 1 through 10, "J"
page 17).
NOTE: (Figure 16)
The lug (Index C) in the faceplate must match
the slot (Index D) in the grip release adjusting
lever (Index E) or damage to the head may result.
A
B
C
D
E
F
G
H
I
J
K
L
M
N
(CTTT2605Scene 16)
Figure 15

17
8. Push two face plate retaining clips (Index F)
outward while lifting face plate up, or remove
retaining clips to release face plate.
9. Position grip spring housing (Index G) between
tension pawl spring retainer (Index H) and
cutter housing (Index I).
10. Remove face plate (Index B) by sliding face
plate to the left and lifting up.
11. Remove the cutter operating slide (Index I,
Figure 15).
12. Insert a new cutter operating slide.
13. Reassemble
K. Proper Wire
Depending on which M2000 head is being used the
wire range may be: 25 to 30 gauge round; 24 gauge
round; 20x25 or 21x25 flat. 120,000 to 159,000 psi
tensile strength bookbinders wire should be used.
If the wire used is larger than the bender bar grooves
were designed for, it will fracture at the stitch cor-
ners and come out in pieces. Also, serious damage
to the stitcher may result. If the wire used is smaller
than the bender bar grooves were designed for, the
legs of the stitch do not fit snugly in the grooves
and may tend to buckle when they strike the work
material because they are not fully supported.
L. Rotator (Figure 15)
The rotator (Index J) (1) receives the wire from the
cutoff die, (2) holds the wire while it is being cut,
then (3) turns it to a horizontal position, moves it
under the bender bar grooves and (4) supports the
wire while it is being formed into a "U-shaped"
stitch.
The wire lead-in-funnel of the rotator must be
aligned with the wire as it comes through the wire
cutters. If the rotator is improperly aligned, the
wire hits the rotator and buckles. Adjust upper two
wire straighteners until wire slips past rotator. Burrs
on the rotator prevent the wire from entering the
rotator. This causes wire buckling. Remove the
rotator and polish the lead-in radius.
J. Wire Cutter Operating Slide
The wire cutter operating slide actuates the lower
wire cutter which acts as the cutting knife. If the
slide is worn or broken, the wire cutter is not actu-
ated. Replace the operating slide.
To Replace The Wire Cutter Operating Slide:
1. Cut the wire at the bracket and pull the loose
end out.
2. Remove the stitcher head assembly.
3. Lift end of spring (Index L, Figure 15) out of
rotator.
4. Swing the spring up to disengage it and lift
out.
5. Slip the rotator operating cam (Index M, Figure
15) forward and off the stud.
6. Pull the rotator forward.
7. Loosen the two face plate retaining clips (Index
A, Figure 16) and rotate them downward.
A
B
C
D
E
F
G
I
H
(CTTT2605 Scene 17)
Figure 16

18
M. Wire Straighteners:
(Figure 17)
All coils of stitching wire have a certain amount of
bundle curve. The purpose of a wire straightener is
to remove this curve. There is both an upper wire
straightener (Index A) and a lower wire straight-
ener (Index B) on all M2000 Model Stitchers. See
"Threading Wire and Adjusting Wire Straighteners"
page 4.
The upper wire straightener should feed wire paral-
lel to the faceplate. This insures that the wire will
properly enter the rotator and will be aligned with
the grooves in the bender bar.
If the wire is not parallel to the face plate the wire
is sheared in the rotator as the bender bar descends.
Adjust the upper wire straightener.
The lower wire straightener directs the wire straight
down so that it enters the rotator (Index C). If the
wire is not straight enough it hits the rotator and
buckles. Adjust the lower wire straightener so that
The magnets in the rotator hold the wire firmly in
the rotator. If a magnet is broken or chipped the
wire may fall out. To determine if the rotator has
the proper holding strength, remove the rotator and
insert a cut length of wire in the rotator. Hold
rotator between thumb and forefinger. Attempt to
jar wire loose by hitting heel of hand on top of
table or against other hand. With proper magnetic
holding force wire will remain in rotator. With
insufficient holding force wire will fall from rota-
tor. Replace the rotator.
The rotator holder and rotator operating spring are
responsible for alignment of the wire beneath the
bender bar grooves. The position of the rotator
holder determines how far the rotator is pushed
forward under the bender bar by the rotator operat-
ing spring (Index L, Figure 15). A weak spring will
not push the rotator in far enough and with this im-
proper alignment the bender bar will knock the wire
from the rotator or will shear the wire into pieces.
To secure proper alignment, check the position of
the rotator holder and the tension applied by the
rotator operating spring. Make any necessary ad-
justment of the rotator holder or replace the rotator
operating spring if weak.
The wire is fed into the rotator and held for form-
ing. If the rotator is dirty, the wire is not gripped
securely enough and drops out. Remove and clean
the rotator. If the edges over which the wire is
formed are sharp, the corners of the stitch crown
will fracture. Remove the rotator and polish the
edges with a fine emery cloth.
To remove, Adjust or Replace the Rotator Holder:
1. Swing the rotator operating spring to the left.
2. Remove the rotator.
3. Loosen the rotator holder screw (Index N,
Figure15).
4. Adjust the rotator holder.
5. Reassemble.
A
B
C
D
(CTTT2605 Scenes 3 &4)
Figure 17