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The vacuum gauge must read a
WARNING
minimum of 20 inches of mercury
vacuum. To reduce the risk of injury DO NOT
CORE if the gauge reads less than 20 inches of
mercury vacuum.
Using an Expansion-Type Anchor
For Cat. No. 4115 & 4120 only.
Use a 5/8" expansion-type
anchor (not supplied) that
will accept a 5/8" threaded
rod or bolt to secure the
base to the work surface.
1. Remove the rubber gas-
ket from the base.
2. Level the rig with the four
(4) leveling screws.
3. Using an expansion-type anchor, insert a threaded
rod or bolt through the slot located in the base of
the Dymorig and tighten the bolt or washer and nut
firmly in the anchor following the manufacturer's
instructions.
Assembling and Using a Vacuum System
For Cat. No. 4120 only.
Vacuum
Release
Valve
Small Hole
for Attaching
Pump to
Dymorig
Stand
Vacuum
Pad
Gasket
Vacuum Adapter Assembly
The vacuum pad is most effective when it is se-
cured to a relatively smooth surface such as poured
concrete.
If the surface is too porous or rough, the vacuum
pad may not hold securely. Before using the vacuum
pad, always check the gasket on the underside of
the base to make sure it isn't worn, cracked or torn.
If it is, immediately replace the gasket, otherwise the
vacuum may not hold the rig securely.
To replace the gasket, see "Replacing Vacuum Pad
Gaskets" in the "Maintenance" section. See "Acces-
sories" for gasket part number.
Leveling Screws
Rod or Bolt
Filter Jar
Vacuum Gauge
Coupler
Vacuum
Hose
Leveling
Screws
Vacuum Line
Coupler
1. Position the rig as required for coring the hole.
2. Loosen the four (4) leveling screws until the ends
are above the bottom surface of the base.
3. Place the vacuum adapter assembly into the slot
in the base.
4. Connect one end of the supplied vacuum hose to
the vacuum line coupler on the vacuum base. To
do this, pull back the collar on the hose and push
the end of the hose onto the coupler until it snaps
into place. Connect the other end of the vacuum
hose to the coupler on the vacuum pump following
the same procedure.
5. The vacuum pump may be set on a dry surface
away from the rig or mounted to the base of the Dy-
morig as shown. To mount the vacuum pump on the
base, place the small holes on the vacuum pump
mounting bracket over the two tapped holes on the
base. Attach the vacuum pump to the base with two
(2) 1/4" - 20 screws supplied in the accessory bag.
6. Plug the vacuum pump into the power source - the
pump will start automatically. Step on the base
until it lowers and adheres to the work surface.
7. Tighten the four (4) leveling screws only enough
to eliminate rocking. Over-tightening can lift the
gasket off the ground and release the vacuum.
The vacuum gauge must read a
WARNING
minimum of 20 inches of mercury
vacuum. To reduce the risk of injury DO NOT
CORE if the gauge reads less than 20 inches of
mercury vacuum.
Using the Optional Telescoping Assembly
1. Secure the rig using either an expansion-type
anchor or a vacuum system (see "Securing the
Equipment to the Work Surface").
2. Place the top flange of the extension against a
ceiling or wall and place the other end on the
jack screw at the top of the Dymorig column.
The assembly is adjustable up to 14 feet. Turn the
jack screw to tighten the assembly and to make
small adjustments.
Supply an Adequate Water Flow
An adequate supply of water must flow freely and
constantly during the entire cut. Dymodrills are
equipped with a built-in water shut-off valve to allow
water to flow down the inside and up around the
outside of the bit. This acts to cool the bit and flush
cuttings from the hole.
Reading the Meter Box
The ammeter is the
dial indicator on the
meter box, which is
standard equip-
ment with the Vac-
U-Rig
and can be
®
purchased sepa-
r a t e l y f o r o t h e r
Dymorigs. The am-
m e t e r p r o v i d e s
pressure feedback
during coring, al-
lowing you to help
prevent motor overload and premature bit wear. The
green area on the ammeter is the operating range
and the red area indicates that you are applying too
much pressure.
9
20 Amp
Operating
Range
15 Amp Operating Range
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