LINK Systems System 1100 Tonnage Monitor - Manual (Page 63)

INSTALLATION
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5-4
Figure 19. Drill Fixture.
5.2 Mounting the Strain Links
Strain links may be bolted directly to the machine or bolted to
intermediate pads welded or adhered to the machine.
5.2.1 Direct Machine Mounting
1) Select the desired mounting locations for the strain links
(section 4.2).
2) Remove paint, oil, grease, etc., to obtain a bare metal
surface slightly larger than the LST-1000 strain link. The
metal surface must be flat and smooth so that the strain link
is not warped and contacts the surface area evenly when
mounted. A mounting surface that is flat within .0025 inches
and with a 250 microinch or less finish will give best
results. Grind the surface if necessary.
3) Scribe a line on the metal surface on which the strain link is
to be mounted in the direction of tension or compression of
the structural member. This will be a vertical line on
columns or ties rods of straight side presses and OBI and
other "C" frame machines that are not inclined. On inclined
OBI presses and other machines, the scribe marks should follow
the inclined angle.
4) Place the hardened drill
fixture provided with the
direct mounting strain
link kit in position
adjacent to the scribed
line and use a no. 3 drill
to drill a 5/8" deep hole
through the center hole
position of the drill
fixture. Tap the hole for
a 1/4 x 28 thread. Bolt
the drill fixture securely
to the mounting area, as
shown in Figure 18.
5) Use a no. 3 drill to drill 5/8" deep holes in the mounting
surface through the remaining four holes in the drill fixture.
Tap the holes for a 1/4 x 28 thread after removing the drill