Milwaukee Tool 4125 - Manual (Page 7)

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move, tighten the six (6) gib screws that secure the
cradle to the column as follows.
For Cat. No. 4125 & 4130 only.
1. To install a bit, grease the spindle and bit threads
to prevent corrosion and to help prevent the bit
from seizing on the threaded spindle.
2. Slip one copper washer (provided in separate
accessory bag with the water shut-off valve
components) onto the threaded spindle against
the spindle shoulder. The bag should contain an
extra copper washer; save it for future use.
3. Thread the bit securely onto the threaded spindle.
Selecting Speeds
Dymodrills operate in either high or low gear. Use
low speed for large diameter bits and high speed for
small diameter bits (see "Specifi cations").
Selecting and Installing a Core Bit (Fig. 8)
MILWAUKEE offers both standard and premium
Dymobits designed to cut through a variety of ma-
terials including poured concrete, steel-reinforced
concrete, and prestressed concrete. Always use
clean, sharp bits.
Tighten the six (6) gib screws with the hex wrench
(supplied in a separate accessory bag).
For Cat. No. 4115 & 4120 only.
To tighten the six (6) gib screws: loosen the hex nuts,
tighten the screws and then tighten the hex nuts.
Fig. 7
Gib
Screws
Copper
Washer
Fig. 8 Water
Control
Valve
Assembling the Water Shut-Off Valve to the
Dymodrill
Methods for Securing Equipment to Work
Surface
NOTE: Some building materials contain steel
reinforcements. MILWAUKEE Dymobits can cut
through embedded steel, but are not recommended
for coring solid steel plates.
Horizontal Coring (walls)
For specifi c instructions on using anchors, see
"Using an Expansion-Type Anchor".
Vertical Coring (fl oors)
Two methods will work to secure the rig for verti-
cal coring: either an expansion-type anchor OR a
vacuum pump and vacuum pad system. Securing
the rig with an anchor gives better bit performance
because the attachment is more rigid. For specifi c
instructions on assembling the vacuum system,
see "Assembling and Using a Vacuum System".
Optional Telescoping Assembly
The telescoping assembly can be used to supple-
ment either securing method.
NOTE: Vac-U-Rig
® Cat. No. 4136 includes a
vacuum pump and vacuum pad. However, for some
applications, you may choose to use an expansion-
type anchor to secure the tool.
Anchors and Telescoping Assembly are not supplied
with any of the above rigs. Telescoping Assembly
can be purchased separately (see “Accessories”).
Anchors unavailable through MILWAUKEE.
1. Remove the water shut-off valve components
from the accessory bag. (The copper washers
inside the bag are for bit installation.)
2. Insert the hose adapter into the hose nut. Then
insert the rubber washer into the hose nut.
3. Insert the hose nut assembly into the shut-off
valve and securely tighten the assembly with
the supplied socket wrench; some threads on
the hose adapter will still be exposed.
4. Screw the shut-off valve assembly into the water
swivel housing on the Dymodrill motor (Fig. 8).
Hand-tighten the assembly and then tighten it
approximately 1/4 turn with an adjustable wrench
(not provided).
Fig. 9
Attach to
Dymodrill
Hose nut
Rubber
washer
Shut-off valve
Hose adapter
WARNING To reduce the risk of injury
always secure the rig to the work surface to
help prevent personal injury and to protect
the rig. An unsecured rig could rotate during
coring and possibly cause injury.
WARNING
To reduce the risk of injury
always use an expansion-type anchor during
horizontal coring. Vacuum systems can slip
when used on a vertical surface.