User's Manual

MTU Instruction
for Carson Industries 1419-3 and 1419-5 Pit Lids
Installation Procedure
Step 1 - Mount the drilling fixture onto
either model of the Carson Pit Lid. The
fixture is keyed so that it will align in only
one direction.
Step 2 - Hold the fixture secure in
position on the lid and drill two holes into
the lid using the supplied 17/64” drill bit,
through the guide holes in the fixture.
Step 3 - Remove the fixture from the lid.
Step 4 - Countersink the 2 holes using
the supplied ¾” 82 degree countersink,
only deep enough for the screw heads to
be flush or slightly below the surface of
the lid.
Step 5 - Insert 2 stainless screws through
the holes drilled in the top side of the lid.
Step 6 - Turn the lid over and attach the
FlatPak as shown below. Note the
FlatPak orientation. The front side (with
the STAR logo) must be placed against
the bottom of the lid. Apply a ¼” stainless
steel flat washer to each screw, then
apply the ¼-20 stainless steel keps nut to
each screw.
Step 7 - Tighten the hardware with the
torque driver. Use the nutdriver or
combination wrench to hold the nut if
necessary. Tighten hardware just past
snug.
CAUTION!
Use no more than 12-15 in-lbs
of torque. Do not over tighten
hardware.
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