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Operating the Machine
Blade is sharp. Keep hands away
WARNING
from all cutting edges. Laceration
and amputation can occur.
Wear appropriate respiratory protection or use an
OSHA compliant dust extraction solution.
Before operating the machine, ensure the blade block
is installed and that the clear cover moves freely.
Ensure that a skid plate is installed, the belt guard
is in place, and when working in dusty situations,
connect the dust extractor to the machine.
1. Insert the battery pack.
2. Arm the machine.
3. Use the guide arm lever to lower and align the
guide arm to the cutting surface.
Guide arm
4. Use the power switch to turn the machine on.
5. Pull the transport latch lever to slowly lower the
blade into the concrete.
6. Push the machine forward to keep the guide arm in
the cut line. Do not use more force than necessary
to push the machine forward.
NOTE: The blade speed will automatically be set
to full speed when the machine is armed. If a new
blade has been installed, use the machine at low
speed for the first 50' by pressing the low speed
button.
7. When near a wall, lift the guide arm up by pulling
the guide arm lever up.
8. Toggle the power switch to the off position. Press
and hold the ARM button for 1 second to turn off
the machine.
9. When the operation is complete, tilt the machine
rearward to place the machine in the transporting
position.
10. Clean the machine after each use. For instruc-
tions, see the "Cleaning" section of this manual.
MAINTENANCE
To reduce the risk of injury, always
WARNING
unplug the charger and remove the
battery pack from the charger or machine before
performing any maintenance. Never disassemble
the battery pack, charger, or machine, except as
provided in these instructions. Contact a
MILWAUKEE service facility for all other repairs.
Maintaining Machine
Keep your machine, battery pack and charger in good
repair by adopting a regular maintenance program.
Inspect your machine for issues such as undue noise,
misalignment or binding of moving parts, breakage
of parts, or any other condition that may affect the
machine operation. Return the machine, battery
pack, and charger to a MILWAUKEE service facility
for repair. After six months to one year, depending on
use, return the machine, battery pack and charger to
a MILWAUKEE service facility for inspection.
If the machine does not start or operate at full power
with a fully charged battery pack, clean the contacts
on the battery pack. If the machine still does not work
properly, return the machine, charger and battery
pack, to a MILWAUKEE service facility for repairs.
Installing/Removing the Belt
Replace the belt when it becomes damaged or over-
worn. The belt should be replaced every two years, at
minimum. Do not use the machine if the belt is damaged.
The idle tensioner controls the belt tension. It is not
necessary to adjust the belt tension. Make sure that
the idle tensioner moves freely up and down.
To replace the belt:
1. Remove the battery pack.
2. Remove the blade from the machine by following
the "Installing/Removing the Blade" instructions in
this manual.
3. Loosen the two belt guard screws using a T-25
screwdriver. Remove the belt guard from the
machine.
4. Press down on the idle tensioner to loosen the
belt. Pull the belt off of the motor pulley and away
from the machine.
Idle
tensioner
Drive line pulley
5. Place a new belt onto the drive line pulley. This
is best done by going underneath the machine.
Once on the drive line pulley, press down on the
idle tensioner and thread the belt onto the motor
pulley. Keep threading the belt until it is fully in
place and aligned with the motor pulley.
6. Reinstall the belt guard onto the machine. Tighten
the two belt guard screws securely.
8
Cable Tensioning
Over time, the cables for the guide arm lever and
transport latch lever may loosen. This may result
in a more difficult time using the guide arm and
transport latch.
To tighten the cable tensioning:
1. Remove the battery pack.
2. Hand tighten the cable tensioner until it is taut.
3. Hand tighten the jam nut until it meets the cable
tensioner.
Jam nut
Cable
tensioner
Lubricating the Blade Block Pins
The blade block pins should be lubricated at least
once every two years.
To lubricate the rear blade block pin:
1. Remove the battery pack.
2. Remove the skid plate.
3. Remove the rear blade block cap. WARNING!
The blade block cap is spring-loaded. Wear safety
glasses.
4. Remove the spring underneath the cap.
5. Push the bottom of the rear blade block pin up-
wards, through the top of the blade block. Grab
the pin and remove it from the blade block.
Rear
blade
block
cap
Spring
Motor
pulley
Rear
blade block
Belt
pin
6. Lubricate the pin using 14-46-9930 MILWAUKEE
service grease.
7. Place the pin back in the blade block, pushing it
through so that it is visible underneath the blade
block.
8. Place the spring back on the pin, and the cap back
over the spring. Screw the cap back onto the blade
block.
To lubricate the front blade block pin:
1. Remove the battery pack.
2. Remove the skid plate.
3. Remove the blade from the machine.
4. Loosen the two screws on the back side of the
guide arm.
Guide arm
screws
5. Remove the shoulder bolt from the guide arm.
Shoulder
Front blade
bolt
block cap
6. Tilt the guide arm upwards, so that the front blade
block cap is visible.
7. Remove the front blade block cap. WARNING!
The blade block cap is spring-loaded. Wear safety
glasses.
8. Remove the spring underneath the cap.
9. Loosen the blade block knob. Once loosened,
rotate the blade block upwards.
10. Remove the top screw shown below.
Blade
Top
Dust diverter
block knob
screw
11. Remove the dust diverter from the machine.
12. Remove the set screw at the bottom. Once re-
moved, remove the 6 mm pin.
6 mm pin
Set screw
13. Push the bottom of the front blade block pin up-
wards, through the top of the blade block. Grab
the pin and remove it from the blade block.
14. Lubricate the pin using 14-46-9930 MILWAUKEE
service grease.
15. Place the pin back in the blade block.
16. Reinstall the 6 mm pin, and then reinstall the dust
diverter.
17. Place the blade block back down, and then tighten
the blade block knob.
18. Place the spring back on the pin, and the cap
back over the spring. Screw the cap back onto
the blade block.
19. Retighten the guide arm.
9
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