Operation - Milwaukee 4262-1 Operator's Manual

ASSEMBLY
WARNING
To reduce the risk of injury,
always unplug tool before changing or
removing accessories. Only use accessories
specifi cally recommended for this tool. Others
may be hazardous.
Attaching Feed Handles and Grips
1. Assemble the feed handles and grips to the
feed handle hub. Tighten securely.
2. To mount the feed handle to the opposite side,
remove the wing screw assembly that secures
the hub/pinion assembly. Pull out the hub/
pinion assembly and insert on the other side
of the housing. Replace and tighten the wing
screw assembly.
Mounting the Drill on Slide
To provide maximum holding power, mount the
motor with the spindle closest to the stand. All drills
(except 4253-1) can also be mounted in a reverse
position to permit drilling close to walls and corners.
When the spindle is furthest from the stand, the
maximum drill point pres-
sure is reduced.
1. Select the mounting area
that best suits your ap-
plication.
2. Line up the mounting
holes.
3. Slip the lock washers
over the mounting screw
and insert them through
the back of the slide and
into the motor mounting
pad. Tighten securely.
Adjusting the Gib Assembly
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 sup-
port 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.
Connecting the Power Cord Control Panel
Socket
Insert the drill plug into the control panel socket
and screw it on tightly. Plug the drill press into the
nearest power source. This drill press is rated for
120 volts AC, 60 Hz.
Fig. 1
Fig. 2

OPERATION

Line Lockout
The line lockout prevents the drill motor from start-
ing when line power is fi rst applied to the system
or after a momentary power loss.
Motor/Magnet Interlock
The motor/magnet interlock is a feature that pre-
vents power from being applied to the drill motor
if the magnet is not energized. The motor magnet
interlock also prevents the magnet from being de-
energized while the motor is running.
Diagnostic Light
Low current reduces the magnet's holding power.
When current is low, the detection light will fl ash
and the drill motor will stop. When the magnet light
fl ashes, check for the following:
• Low voltage at the plug
• Loose motor connection
• Mag panel buttons are jammed or stuck
If the detection light continues to fl ash, take the
entire unit to an authorized service center.
Auto Base/Chip De-Mag (Motor must be OFF)
The metal chips formed while drilling have a ten-
dency to retain some residual magnetism and stick
to the base once the electromagnet is de-energized.
In order to prevent this, a base/chip de-mag is ac-
complished after the motor has stopped by pushing
the magnet button. The indicator light will turn off
and the base will automatically de-mag.
Electronic Switching
The drill motor may be switched from forward to
reverse without fi rst having to bring the motor to a
full stop. Ideal for tapping.
Soft-Start
Soft-start is incorporated into the system to help
increase drill motor life and decrease stress on
the overall system. This feature increases the drill
motor speed up from zero to the maximum speed
set by the dial in less than one (1) second.
Feedback/Speed Control
The electronic speed control system allows the user
to obtain repeatable speed selections, at a given
speed dial setting, without the constant change
seen with standard speed controls.
Magnetic Holding Force
The electromagnetic drill press attaches magneti-
cally to any ferrous metal. It is designed for use
on 1/2" or thicker ferrous stock. Holding power will
decrease on thinner stock, a backup plate must
be used. The magnetic base WILL NOT hold on
non-magnetic grades of stainless steel.
Backing Plate
A backing plate must be used when the workpiece
is less than 1/2" thick because the electromagnet
cannot provide suffi cient holding force on thickness'
less than 1/2". The backing plate must bring the
combined thickness of the workpiece and backing
plate to at least 1/2". Make sure the backing plate is
larger than the magnet footprint. Clamp the backing
plate underneath the workpiece, directly below the
magnet, before turning the magnet on.
The workpiece must be able to support the mag
6