4
5
Attaching the Flex Shaft
Flex shafts are normally lubricated from the manu-
facturer from one end. Attach the greased end to
the machine. Use a
fl
ex shaft with a length suitable
for the job.
1. Remove the battery pack.
WARNING!
Always
remove battery pack before changing or removing
accessories.
2. Open coupler locking handle.
3. Place the
fl
ex shaft into the coupler.
4. Pull the
fl
ex shaft until the coupler locking handle
engages. (Handle will automatically fall into place
with an audible click).
Attaching Head to Flex Shaft
1. Remove the battery pack.
WARNING!
Always
remove battery pack before changing or removing
accessories.
2. Coat
fl
ex shaft threads with sealant to prevent
water from entering head
3. Thread head onto
fl
ex shaft.
4. Tighten by gripping metal portion of the
fl
ex shaft
and
fl
ats of the head.
Putting on the Backpack
1. Ensure backpack is securely latched to base.
2. Pick up the backpack by one of the shoulder
straps, slide your arms through each shoulder
strap.
3. With the machine on your back, tighten the
shoulder and waist straps until they
fi
t snugly and
securely. Connect chest strap.
4. Be sure the shoulder, chest, and waist straps are
tight but comfortable; if they are too loose, the
machine may slide around on your back, making
it uncomfortable to wear.
5. Be aware machine forces may shift during use and
movement, such as twisting or bending over.
Changing Remote Batteries
Only use alkaline batteries. Do not use zinc-carbon
batteries. If the remote will not be used for a long
time, remove the batteries as a protection against
corrosion.
To change the batteries:
1. Open the battery compartment.
2. Insert the batteries according to the polarity
marked in the compartment.
3. Close the battery compartment.
Pairing the Remote
1. Arm the machine.
2. On the machine, set the switch to the position.
3. Turn on the remote.
4. On the machine, press and hold the
button
until LED begins
fl
ashing (indicating machine is
ready to pair).
5. Press and hold the
button on the Remote;
flashing LED on machine will turn solid then
off when the remote has paired successfully.
NOTE:
Remote needs to be within close proximity
to ensure remote is receiving signal from the ma-
chine. This procedure will time out in 30 seconds
if machine is not paired.
Removing/Installing the Backpack
The backpack can be removed for certain applica-
tions or for spot cleaning.
To
remove
the backpack, squeeze the backpack
latch and pull the backpack away from the machine.
NOTE:
When used without a backpack, do not drag
the machine with the
fl
exible shaft.
To
install
the backpack, line up the bottom hook and
secure the backpack to the machine base using the
backpack latch.
ONE-KEY™
To learn more about the ONE-KEY™ function-
ality for this machine, please refer to the quick
reference included with this machine or go to
milwaukeetool.com/One-Key. To download the
ONE-KEY™ app, visit the App Store or Google Play
from your smart device.
ONE-KEY™ Indicator
Solid Blue
Wireless mode is active and ready
to be con
fi
gured via the ONE-KEY™
app.
Blinking Blue Machine is actively communicating
with the ONE-KEY™ app.
Blinking Red
Machine is in security lockout and
can be unlocked by the owner via
the ONE-KEY™ app.
OPERATION
WARNING
To reduce the risk of injury, always
wear proper eye protection marked
to comply with ANSI Z87.1.
Arming the Machine
The MX FUEL™ machines must be armed prior to
use. Even with the battery pack inserted, the machine
functions will not operate until the machine is armed.
To arm the machine:
1. Insert the battery pack.
2. Press the Arm button. The MX FUEL™ icon will
light.
3. After 15 minutes of inactivity, the machine will enter
sleep mode. The MX FUEL™ icon will go o
ff
and
the LEDs are un-operational.
4. Press and hold the Arm button for 1 second to
reactivate the machine.
5. Press and hold the ARM button for 1 second to
unarm (turn o
ff
) the machine. The MX FUEL™
icon will go o
ff
.
Starting and Stopping
1. Arm the machine.
2. To
start
the machine, set the switch to the
position.
3. To
stop
the machine, set the switch to the
position.
Starting and Stopping (Remote Mode)
1. Arm the machine.
2. On the machine, set the switch to the position.
3. Turn on the remote
4. To
start
the machine, press the
button on the
remote.
5. To
stop
the machine, press the
button on the
remote.
FUNCTIONAL DESCRIPTION
10
2
4
1
5
3
1. Backpack
2. Backpack latch
3. Carry handle
4. Coupler locking
handle
5. Flex shaft coupler
6. Remote storage
7. Transmit LED
8. Pairing button
9. Remote on/o
ff
switch
10. Start/Stop button
11. Remote mode
position
12. OFF position
13. ON position
14. ONE-KEY indicator
15. Cold Start LED
16. Arm button
17. Pairing button
7
8
9
6
11
12
13
17
16
14
15
ASSEMBLY
WARNING
Recharge only with the charger
speci
fi
ed for the battery. For spe-
ci
fi
c charging instructions, read the operator’s
manual supplied with your charger and battery.
Removing/Inserting the Battery
To
remove
the battery, push the battery latch lock
to the side and squeeze the battery latch lever. Pull
the battery pack away from the machine.
WARNING
Always remove battery pack before
changing or removing accessories.
To
insert
the battery, slide the pack into the body of
the machine. Make sure it latches securely into place.
WARNING
Only use accessories speci
fi
cally
recommended for this machine.
Others may be hazardous.
Cold Start LED
The Cold Start LED will illuminate when the machine
is started in cold conditions (below 32°F). The ma-
chine will will gradually bring the VPM up to 10,000
in order to avoid nuisance shutdowns. Once the VPM
reaches 10,000 VPM the Cold Start LED will go o
ff
.
This feature allows the machine to start in temps as
low as -4°F.
Low Battery Alert
During use, when the battery nears end of charge
(at 10% and 2% remaining charge), the machine will
notify the user by turning itself o
ff
and on (pausing).
Charge the battery.
General Operation
1. Insert head vertically into material allowing head
to sink to desired depth by its own weight.
2. Hold in place for 5-15 seconds, then slowly lift head
up, staying behind the trapped air's movement to
avoid retrapping air.
3. A small up and downward movement will close the
hole formed by the head.
4. To prevent agitating air into material, withdraw the
head quickly when near the top.
5. Move head, re-insert and repeat as desired.
MAINTENANCE
WARNING
To reduce the risk of injury, always
unplug the charger and remove the
battery pack from the charger or machine before
performing any maintenance. Never disassemble
the machine, battery pack or charger. Contact a
MILWAUKEE service facility for ALL 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 a
ff
ect 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.
