Install Instructions

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22
Troubleshooting ProPEX
Connections
Trouble-free ProPEX installations begin
with a tool that is maintained in proper
working condition. If the tool or segment
fingers are damaged, it is very difficult
to make a proper connection. Refer to
the following guidelines to assist with
challenges in the field.
Fittings Won’t Seal
• Make sure the expander head is securely
tightened onto the tool.
• Ensure the segment fingers are not
bent. If the head does not completely
close when the drive unit is fully
retracted or the handles of the manual
tool are open, replace the head.
• Examine the tool for excess grease on
the segment fingers. Remove excess
grease prior to making connections.
• Check the fitting for damage. Nicks and
gouges will cause the fitting to leak.
• Make sure the internal driver cone is not
damaged or bent.
• Make sure the last expansion is not
held in the expanded position before
the fitting is inserted. You should feel
some resistance as the fitting goes
into the tubing. If you do not feel any
resistance, the tubing may be over
expanded and will require additional
time to shrink over the fitting.
• Be sure to rotate the tool
1
⁄8 turn after
each expansion to avoid deep grooves
in the tubing which can result in
potential leak paths.
Expansion is Difficult
• Make sure the internal cone is properly
greased.
Expansion Head Slips Out of Tubing
When Making Expansions
• Ensure the tubing and ProPEX Ring
are dry.
• Make sure that grease is not getting
into the tubing.
• Examine the segment fingers to ensure
they are not damaged or bent.
ProPEX Ring Slides Down Tubing
During Expansion
• Ensure your hands are clean while
handling the tubing. Any sweat or oils on
your hands can act as a lubricant. Due
to the smoothness of PEX, any form of
lubricant can cause the ProPEX Ring to
slide down the tubing during expansion.
• If you anticipate the ProPEX Ring may
possibly slide down, position the ring
slightly farther over the end of the
tubing and make the first couple of
expansions slowly. Once the ring and
the tubing begin to expand together,
continue with the normal number and
type of expansions.
• Place your thumb against the ProPEX
Ring to help support it and feel for any
movement.If caught early, you can slide
the ring up the tubing and expand as
described in the previous bullet point.