Milwaukee 4270-20 - Manual (Page 8)

page 8
OPERATION
WARNING!
To reduce the risk of injury, wear safety goggles or glasses
with side shields.
Typical Operation
1. Check the work surface to make sure it is clean and free of foreign
materials.
Paint, rust, scale or uneven surfaces decrease the holding strength
of the magnet. Chips, burrs, dirt and other foreign materials on the
surface of the magnetic base will also decrease holding power. Use
a smooth, flat file to keep the magnet clean and free of nicks.
The electromagnetic drill press attaches magnetically to 3/8" or thicker
ferrous stock. Do not use on stock less than 3/8". The magnetic
base WILL NOT hold on nonmagnetic grades of stainless steel.
2. To install/remove cutter:
4. Move the spindle up so the cutter and center pin are above the work
surface.
• Do not use cutting fluid in an overhead or any other posi-
tion that allows cutting fluid to enter motor or switch
enclosure.
• Wet connections are shock hazards. Prevent cutting fluid
from traveling along cord and contacting the outlet, ex-
tension cord connections or tool plug. Each time tool is
plugged in, elevate extension cord or gang box connec-
tions and arrange a drip loop (See Fig. 6). If plug or con-
nections get wet, turn power off to outlet before
unplugging tool.
Fig. 6
WARNING!
A. Raise the drill motor to its highest position. Tighten stop knob.
B. Insert cutter into drill spindle with the two (2) flats of the cutter
aligned with set screws. Make sure the center pin is inserted
into the cutter.
NOTE: Cutter should be fully seated into drill spindle.
C. Tighten set screws with 3/16" hex key provided.
D. Loosen the stop knob.
E. Reverse procedure to remove cutter.
NOTE: Do not remove cutter unless slug is removed. Slug may
eject unexpectedly.
Avoid contact with cutter tips. Periodically inspect the cutter tips for
loose or damaged tips.
3. Plug in tool to power source.
5. Position the tool so the center pin is directly over the desired cutting
location. Push the magnet switch to the “ON” position. The magnet
indicator light will turn on.
The cutting fluid reservoir will empty as the center pin contacts the
work surface. When notching or slotting, it is required to spray
cutting fluid directly to the cutter and work piece with the supplied
hand pump. Keep hand pump away from moving parts. Failure to
use the lubricant properly will cause cutter damage.
The use of HAWG WASH® cutting fluid is recommended for long life
of these cutters. The operator is responsible for the application of
lubricants other than HAWG WASH® cutting fluid.
In overhead or vertical cutting applications, do not use cutting
fluids. Use only lubricant pastes or sprays recommended for high speed
cutting. Do not allow lubricant pastes and sprays to enter tool.
Fig. 8
7. With the drill on/off switch in the "OFF" position, fill the cutting fluid
reservoir with cutting fluid through the slots in the drill spindle
(Fig. 8).
Fig. 7
C-clamp
To reduce the risk of injury, do not hold workpiece by hand.
WARNING!
6. Use a safety strap on vertical or overhead situations (Fig. 7).
A. Route the safety strap, ring side first, through the lower slot,
and wrap it tightly around a solid, rigid structure as shown.
Make sure the strap is not twisted.
B. Hook the safety strap snaphook provided to the ring.
Eliminate any slack in the strap.
C. When using on a vertical surface, secure the safety strap
with a c-clamp or similar device. This will hold the strap in
place and prevent the tool from sliding down the vertical
surface.
NOTE: Do not clamp to the strap. This may damage the strap
and cause it to break (Fig. 7).
To reduce the risk of injury, always use a safety strap when
drilling overhead or on a vertical surface.
WARNING!