Kistler-Morse KM Microcell Bolt-On - Manual (Page 12)

INSTALLING MICROCELL™ SETS
Note
1. Use lubricating fluid (Relton RapidTap ®
Heavy Duty Cutting Fluid or equivalent)
when drilling and tapping.
2. Drilling and tapping instructions assume
metal thickness greater than ¾” (19mm).
If the thickness is less, drill all the way
through the metal and tap until cutting
complete threads through the other side.
Minimum metal thickness is 0.1875” (5mm),
which provides six thread engagement.
SURFACE PREPARATION
1. See Figure 3-7. At the center of the
vertical Microcell™ mounting location, drill a
¾” (19mm) deep hole with the #29 drill bit.
This produces the template mounting hole.
Repeat for the horizontal Microcell™
(if applicable).
2. See Figure 3-7. Mark the surface preparation
area for the vertical Microcell™ and horizontal
Microcell™ (if applicable).
3. Attach the coarse grit sandpaper to the
grinder. Remove heavy paint and rust with
the grinder until a bare metal surface is
achieved. Due to the use of coarse grit, the
resulting surface is somewhat coarse.
Figure 3-7. Prepared Mounting Surface.
4. Replace the coarse grit sandpaper with the
fine grit sandpaper. Grind until the surface(s) is
completely down to bare metal and smooth to
the touch.
Note
The Microcell™ must be mounted against
smooth, bare metal. Remove all paint and rust
from the area where the Microcell™ is to be
fastened.
DRILL AND TAP
1. Using the #8-32 tap, thread the template
mounting hole for the vertical Microcell™
(drilled during Surface Preparation) to a
minimum 5 /
8
” (16mm) depth, full threads.
Remove any burrs from the hole.
2. See Figure 3-8. Position the drill template
so the center hole lines up with the template
mounting hole.
3. Fasten the drill template to the template
mounting hole through the center hole, using
the captive #8-32 socket head cap screw. Use
a level to ensure correct orientation.
4. Using the #29 drill bit, drill two ¾” (19mm)
deep holes in the leg through the template drill
guides.
Figure 3-8. Drill and Tap Template.
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