4
ProPEX
®
, refer to "3/8" ProPEX
®
Rings" for
proper assembly.
3. Insert the expander head into the PEX tubing.
4. Pull the trigger. The expa-
nder head will expand,
retract, and rotate slight-
ly in each cycle.
NOTE
: When Uponor
Standard expander
heads are used, the head
will NOT rotate automatically. Each time the seg
-
ments contract, gently push the tubing up onto
the expander head and rotate 1/8 turn in either
direction.
WARNING
When using Uponor Standard expan-
sion heads, properly rotate the tub
-
ing after each expansion to create even, smooth
expansion marks. Not rotating the tubing may
cause deep grooves and faulty connections, which
could result in leaking and property damage.
Ring Size
Number of Expansions with Ring*
3/8" PEX
6-10
1/2" PEX
5-8
5/8" PEX
6-10
3/4" PEX
7-12
1" PEX
12-18
*Fewer or more expansions may be necessary,
as influenced by weather and technique.
Expansion
markings
inside tubing
Incorrect
Correct
5. Continue until the tubing and ring are flush with
the expander head shoulder.
6.
Remove the tubing when the segments are
contracted and release the trigger. To avoid over-
expanding the tubing, do not keep tool in the
expanded position with tubing in place.
7. Wipe excess grease from inside tubing.
8. Slide the tubing over the fitting until it is flush with
the fitting shoulder. Connection may be tight. If
unable to slide tubing over the fitting, remove from
fitting and expand one additional time.
9. Tubing should fit tight against the fitting shoulder. If
more than 1/16" gap between tubing and shoulder,
cut 2" off the end of the tubing and restart proce
-
dure with a new ProPEX
®
Ring.
3/8" ProPEX
®
Rings
The 3/8" ProPEX
®
Rings do not fit over 3/8" tubing
without expanding the ring separately.
1.
Place the ProPEX
®
Ring on the expander head
and pull the trigger to expand the ring once.
2. Remove the ring.
3.
Flip the ring over
4.
Place the ring on the expander head and pull the
trigger to expand the ring once more.
5.
Immediately remove the ring and slide onto the
tubing.
NOTE:
The 3/8" ProPEX
®
Rings shrink faster than
other size rings.
6.
Continue with step 3 of "Making PEX Tubing
Connections".
WARNING
Always remove battery pack before
changing or removing accessories.
To
insert
the battery, slide the pack into the body
of the tool. Make sure it latches securely into place.
WARNING
Only use accessories specifically
recommended for this tool. Others
may be hazardous.
Use only MILWAUKEE M12™ ProPEX
®
expander
heads or Uponor Standard expander heads. The
use of incorrectly sized expansion heads may
result in faulty connections, which could result
in property damage.
Changing Expander Heads
To
remove
an expander head, unscrew from tool
counterclockwise.
To
install
an expander head, screw onto tool clock-
wise. Hand tighten securely. Do not over tighten.
The expander head must fit snuggly against the
shoulder of the tool.
OPERATION
WARNING
To reduce the risk of injury, always
wear proper eye protection marked
to comply with ANSI Z87.1.
Fuel Gauge
To determine the amount of charge left in the battery,
turn the tool
ON
. The Fuel Gauge will light up for 2-3
seconds. When less than 10% of charge is left, 1 light
on the fuel gauge will flash 4 times.
To signal the end of charge, 1 light on the fuel gauge
will flash 8 times and the tool will not run. Charge
the battery pack.
If the battery becomes too hot, the fuel gauge lights
will flash in an alternating pattern and the tool will not
run. Allow the battery to cool down.
Trigger Lock
To
lock
the trigger, push the trigger lock from the
left side of the tool. The trigger will not work while the
switch is in the locked position. Lock the trigger when
storing the tool and when the tool is not in use.
To
unlock
the trigger, push the trigger lock from
the right side of the tool.
Making PEX Tubing Connections
To ensure a proper connection:
• Remove the expander head and remove any dirt
and debris.
• Use a clean, lint-free cloth to apply a thin
coat of MILWAUKEE
Expander Cone Grease
Cat.No. 49-08-2400 to the expander cone. Do not
over-lubricate.
WARNING
Improper lubrication (too much or
too little) may result in faulty con-
nections, which could result in property damage.
•
Do not expand tubing beyond the tool's capacity (1").
• Pull trigger and verify that the expander head is
rotating after each cycle when using MILWAUKEE
M12
™
ProPEX
®
expander heads.
1. Cut the PEX tubing to the needed length. Use
only cutters designed for PEX tubing. Make sure
the cut is perpendicular to the length of the tubing
2.
Slide the ProPEX
®
Ring over
ring
1/16"
tubing
the end of the tubing until it
butts against the ring stop. If
the ring does not have a stop,
leave an over-hang of no more
than 1/16". When using 3/8"
