Milwaukee 4270-20 Manual Del Operador página 4

WARNING
To reduce the risk of injury,
always unplug tool before attaching or remov-
ing accessories or making adjustments. Use
only specifi cally recommended accessories.
Others may be hazardous.
Attaching Feed Handles and Grips (Fig. 1)
Fig. 1
1. Assemble the feed handles and grips to the hub.
Tighten securely.
2. To mount the hub to either side, align the two
(2) dowel pins on the hub with the holes in the
pinion. Tighten the handle screw.
Stop Knob (Fig. 2)
The stop knob is designed to stop the slide from
moving.
To install, screw stop knob into location shown
(Fig. 2).
Fig. 2
Stop
knob
Adjusting the Gib Assembly (Fig. 3)
To adjust the gib, loosen or tighten the gib adjust-
ment set screws on the side of the support hous-
ing accordingly with the 3/32" hex key provided.
Tightening the set screws increases friction on the
slide. The gib should be set tight enough to support
the weight of the drill in any position. All adjusting
screws should be set to provide smooth and even
travel over the entire length of slide movement.
The set screws contain a nylon patch that prevents
them from moving freely. Additional adjustment
of the gib may be required from time to time with
extended use of the tool.
ASSEMBLY
Fig. 3
Adjusting the Support Bracket and Spacer for
Depth of Cut (Figs. 4 & 5)
This unit is shipped from the factory set for 1" depth
cutters (Fig. 4).
Fig. 4
Spacer
Support bracket
When using 2" depth cutters, install support bracket
with spacer on bottom, as shown in Fig. 5.
Fig. 5
Spacer
Support bracket
NOTE: Do not use a spacer and support bracket
with chuck adapter.
6
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, fl at fi le to keep the magnet
clean and free of nicks.
The electromagnetic drill press attaches magneti-
cally 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:
A. Raise the drill motor to its highest position.
Tighten stop knob.
B. Insert cutter into drill spindle with the two (2)
fl ats 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.
WARNING
• Do not use cutting fl uid in an overhead or
any other position that allows cutting fl uid
to enter motor or switch enclosure.
• Wet connections are shock hazards. Pre-
vent cutting fl uid from traveling along cord
and contacting the outlet, extension cord
connections or tool plug. Each time tool
is plugged in, elevate extension cord or
gang box connections and arrange a drip
loop (See Fig. 6). If plug or connections
get wet, turn power off to outlet before
unplugging tool.
Fig. 6
4. Move the spindle up so the cutter and center pin
are above the work surface.
WARNING
To reduce the risk of injury,
do not hold workpiece by hand.
OPERATION
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.
WARNING
To reduce the risk of injury,
always use a safety strap when drilling over-
head or on a vertical surface.
6. Use a safety strap on vertical or overhead situations.
A. Route the safety strap, ring side fi rst,
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 dam-
age the strap and cause it to break (Fig. 7).
Fig. 7
7. With the drill on/off switch in the "OFF" position,
fi ll the cutting fl uid reservoir with cutting fl uid
through the slots in the drill spindle.
Fig. 8
The cutting fl uid reservoir will empty as the center
pin contacts the work surface. When notching or
slotting, it is required to spray cutting fl uid 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 fl uid is recom-
mended for long life of these cutters. The opera-
tor is responsible for the application of lubricants
other than HAWG WASH® cutting fl uid.
In overhead or vertical cutting applications, do
not use cutting fl uids. Use only lubricant pastes or
sprays recommended for high speed cutting. Do
not allow lubricant pastes and sprays to enter tool.
8. Start the drill motor by pulling the drill on/off
switch to the "ON" position.
7
C-clamp