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C-15
ACCESSORIES
MAXsa™ 22 & 29 WIRE DRIVES
C-15
K281 SOLID WIRE STRAIGHTENER FOR
TINY TWINARC
®
The K281 wire straightener can be used to straighten
.045” through 3/32” (1.0-2.4mm) wiress. It is recom-
mended for applications requiring long stickout and/or
where accurate wire placement is essential. The fol-
lowing table shows the recommended maximum ele-
crical stick-out (ESO).
GENERAL INFORMATION
1. For best wire straightening the plane of the
K281rolls (A) should be as close as possible to
the plane of the wire reels.
2. The K281 moving arm (B) should be pointing
toward the wire reels and the adjusting knob (C)
should be away from the reels.
3. The K281 can be mounted to the wire drive in
two different positions. The head can then be
positioned to meet the above requirements.
INSTALLATION
1. Remove the Spring Wire Guide if installed.
2. Remove the K129 Ingoing Guide Tube.
3. Insert the new Ingoing Wire Guide (with ceramic
inserts) that comes with the K281.
4. Position the K281 over the wire guide as outlined
above and tighten the two hex head screws.
WIRE LOADING AND ADJUSTMENT
1. Turn the adjusting knob (C) to the maximum
open position.
2. Remove the top ingoing guide block (D) by loos-
ening the thumb screw (E).
3. Straighten the first 10” (254mm) of each wire (the
straighter the wire the easier to load).
4. Insert one wire through each of the guide block
holes.
5. Push both wires through and between the rollers
and down through the guide tube until they touch
the drive roll(s). Press the Cold Inch to start the
wires through the wire drive.
6. Replace the upper guide block making sure that
each wire is in its respective groove of both
rollers. Tighten the thumb screw.
7. Turn the adjusting knob until the moving arm is
approximately at the mid position of its total trav-
el.
The tips should be in line with the O.D. of the drive
rollsfor initial strightening adjustment. If the wires bow
to the right when inched down through the tips they
are being over straightened. If the wires bow to the
left, they are being understraightened. Adjust the knob
until the wires come out parallel and uniform.
Depending on how the wire enters the K281, there
may be some side bow. Slight rotation of the K281
may eliminate this condition.
Once the wire is sufficiently straight, the tip orientation
can be changed to whatever angle between “in-line”
and “cross seam” is required.
NOTE: For overlay applications with Tiny Twinarc, a
special side by-side tipholder (Part # S17728
is available that accepts standard tips.
Wire Size (mm)
ESO - Standard
Wire Guide (mm)
ESO - K281
Straightener (mm)
.045” (1.0) 3/8” (9.5) 5/8” (16.0)
.052” (1.3) 1/2” (12.5) 3/4” (19.0)
1/16” (1.6) 3/4” (19.0) 1-1/4” (32.0)
5/64” (2.0) 1.00” (25.4) 1-3/4” (44.5)
3/32” (2.4) 1-1/4” (32) 2.0” (51)
FIGURE C.21
E
D
B
A
C
Under
Straightened
Over
Straightened