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Always make sure the stand is rigidly mounted
with an expansion-type anchor or vacuum system.
Any movement or vibration will shorten the life of the
core bit. If the drill or bit moves, tighten down the
mounting system. If the drill or bit continues to move,
see "Adjusting Carrier Assembly" in the Maintenance
section for more information.
Some building materials contain steel reinforce-
ments. MILWAUKEE core drill bits can cut through
embedded steel, but are not recommended for coring
solid steel plates.
Using an Expansion-Type Anchor
For Vertical (Wall) or Horizontal (Floor) Coring
When drilling through walls or ceil-
WARNING
ings, protect persons and the work
area on the other side from falling debris/cores.
The bit may extend through the hole or the core
may fall out on the other side.
Eye
Bolts
Anchor
Center Pointer
Expansion type anchors are the most rigid method
and can be used for vertical (wall) and horizontal
(floor) coring. Use a 5/8" or 3/4" expansion anchor
with an integral threaded rod, washer, and nut
(not included).
1. Locate the position of the expansion-type anchor
by measuring out 10" to 14" from the center of the
hole to be drilled.
2. Set your anchor according to the anchor manu-
facturer's instructions.
3. Set stand over the anchor, as shown. The anchor
should extend through the slot in the center of
the stand.
4. Put the washer and nut over the anchor and hand
tighten.
5. Extend the center pointer and align it with the
center of the hole to be drilled.
6. Tighten the anchor nut securely.
7. Retract the center pointer.
Assembling and Using a Vacuum System
(Optional) For Horizontal (Floor) Coring
To reduce the risk of injury always
WARNING
use an expansion-type anchor dur-
ing vertical coring. Vacuum systems can slip
when used on a vertical surface.
When securing the stand to the workpiece with a
vacuum pump, install the stand on a smooth, clean,
nonporous surface, such as poured concrete. Do
not secure to laminated surfaces such as tiles and
composite coating. If the workpiece is not smooth,
flat, or well affixed, the gaskets may pull away from
the workpiece, causing the stand to move. If the
surface is too porous or rough, the vacuum may not
hold securely or create a full seal.
Before using the vacuum:
Nut & Washer
5
• Always check the gaskets on the underside of the
base for wear, cracks or tears. Immediately replace
worn or damaged gaskets. To replace the gaskets,
see "Replacing Vacuum Gaskets" in the "Mainte-
nance" section.
• Make sure the gauge is at 0" Hg.
1. Loosen the (4) eye bolts until the ends are above
the bottom surface of the base.
2. Extend the center pointer and align it with the
center of the hole to be drilled.
3. Set the vacuum pump off to the side on a dry
surface away from the stand.
4. Connect the vacuum hose to the vacuum cou-
pler on the stand base, as recommended by the
vacuum manufacturer.
5. Plug in the vacuum pump and turn it on.
6. Step/push down on the center of the base until
it lowers and adheres to the work surface. If the
stand does not seal, check the vacuum release
pin to make sure there is no leakage around it.
7. Continue to monitor
the vacuum seal.
The vacuum gauge
is used to ensure
vacuum pressure is
sufficient to hold
stand in place. The
vacuum gauge must
read a minimum of
20" Hg (green zone),
indicating there is
sufficient vacuum
pressure to sustain
drilling. If the point-
er is in the red zone (0"-20" Hg) there is insufficient
vacuum pressure. WARNING! To reduce the risk
of injury DO NOT CORE if the gauge reads less
than 20" Hg.
8. Once the vacuum gauge reads 20"-30" Hg, use the
four (4) eye bolts to level the stand. WARNING!
Over-tightening can lift the gasket off the ground
and release the vacuum. After leveling, check the
vacuum gauge again.
9. To release the vacuum seal, turn off the vacuum
pump and pull out the vacuum release pin.
To reduce the risk of injury always
WARNING
secure the stand to the work sur-
face to help prevent personal injury and to protect
the stand. An unsecured stand could rotate dur-
ing coring and possibly cause injury. Never rely
on the shoring pin alone for securing.
Using the Shoring Pin
For added rigidity when using an expansion-type an-
chor or vacuum system, use the shoring pin and a brace.
1. Secure the stand using either an expansion-type
anchor or a vacuum system. WARNING! Never
rely on the shoring pin alone for securing.
2. Use the four (4) eye bolts to level the stand.
3. Use pipe or wood (e.g., 4x4 piece of lumber) to
brace stand between a sturdy structure and the
top of the stand.
4. Tighten shoring pin against the brace to increase
the stability of the stand.
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