INCRA Threaded Segment - Manual (Page 2)

w w w. i n c r a . c o m
Photography: Grahame Waterson
Manufactured by:
Taylor Design Group, Inc.
P.O. BOX 810262 Dallas, TX 75381
www.incra.com
INCRA Tools are protected by one or more of the following US patents:
#4,793,604, #4,930,221, #5,195,730, #5,275,074, #5,423,360, #5,716,045, #6,237,457,
#6,557,601, #6,672,190. Other patents granted or pending. rev.03.10.2010
INCRA is a Registered Trademark of Taylor Design Group
©2010 Taylor Design Group, Inc.
Threaded Segment Replacement Instruction (Base)
MADE IN THE
USA
page 2
12. Using the 7” long
steel pivot rod, replace
the red clamp handle.
Be sure to place one of
the black nylon wash-
ers removed in Step
3 onto the pivot rod
on either side of the
clamp handle. (You
can use a small amount
of grease as an aid to
hold the washer in place.) Hold the clamp handle horozon-
tally pressing it against the UHMW clamp bearing pad as you
advance the pivot rod into the LS Base extrusion, passing
through the first black nylon washer followed by the clamp
handle, the final black nylon washer and into the other end
of the LS Base. Cap off each end of the LS Base extrusion
with the provided black nylon arrow clips. Check that the
operation of the red clamping handle is correct, horizontal
for free sliding movement, midway for micro adjustment and
vertical for full lock. Be sure to test the feel of the unit at
each of these points.
Horizontal = Free sliding, no grinding.
Midway = Able to turn Micro Adjust Knob.
Vertical = Fully locked NO Movement.
If clamping pressure is too tight or too loose, you’ll find
complete instructions on fine tuning your clamping pressure
using the provided shims in your LS Positioner’s Owner’s
manual on beginning at the bottom of Page 14.
13. Carefully slide the LS Carriage out of the Base and re-at-
tach the view window or windows previously removed. If
both view windows were removed, place the one with
the hairline in the opening at the forward end of the base.
(Make sure that the printed hairline is face down.)
If the threads between the Lead Screw in the LS Carriage
and the Threaded Segment in the LS Base make contact
or grind against each other when sliding the Carriage from
position to position, it will be necessary to adjust the Metal
Spring Engager to move the Threaded Segment away from
the Lead Screw. Follow
Steps 15-18 below to
adjust the Metal Spring
Engager’s position.
14. Remove the Red
clamp handle along
with the 1/8” UHMW
clamp bearing pad and plastic shims as described in Steps
1-4 above then carefully slide the LS Carriage out of the
Base.
15. Use a set of Feeler
Gauges (or multiple piec-
es of the provided plastic
shims, .020”, .010” &
.005” thick) to gauge the
gap between the Metal
Spring Engager and the
vertical “fin” in the LS Base
extrusion. You will need
to DECREASE this gap in
the adjustment process so
it is important to know what the gap is to begin with.
16. Remove both Acrylic
view windows from the
LS Base as well as the
(2) black nylon slotted
head set screws located
between the windows to
gain access to the but-
ton head fasteners that
secure the Metal Spring
Engager to the LS Base
extrusion.
17. Using a long 1/8” hex
key, loosen all (4) of the
button head screws. Use
your set of feeler gauges
or the provided plastic
shims as an aid in gauging
the distance as you move
the Metal Spring Engager
assembly closer to the
vertical “fin” on the LS
Base extrusion. Just a
few thousandths should
be all that is required
to create the necessary
clearance (one of the
thinnest shims). Tighten
all (4) button head fas-
teners. Carefully slide the
LS Carriage back into the
Base to check for clear-
ance between the Lead
Screw and the Threaded
Segment and fine tune as
necessary. Once clear-
ance is achieved, thread
the black nylon slotted
head set screws into the
holes located between the view window openings on the
LS Base. Screw the set screws down until just before they
make contact with the top of the LS Carriage. Now continue
re-assembly beginning with Step 11.