User Guide
The QCRTLDM crimp tool will crimp
1 ¼", 1 ½" and 2" PEX barb ttings made
to ASTM F1807 using copper crimp rings
that are also made to that standard.
It is a simple tool to use but because
it is a relatively small tool for making
crimps on these large size ttings, there
are substantial loads on the screw/nut
assembly and a little care will improve
the life of the tool.
For heavy duty use, we recommend the
larger power crimp tools.
1. Keep the tool clean. Always store
the tool in its carrying case. If the tool
is dropped in the dirt or gets dirt on
it, be sure to clean it before making
crimps. Dirt can keep the inserts
from seating properly in the tool and
it will shorten the life of the screw/nut
assembly. The nut should turn easily
on the threads of the screw and it
should not feel gritty.
2. Lubricate the threads on the
screw/nut assembly. At least at the
beginning of each job, lubricate the
threads of the screw/nut assembly.
We recommend an extreme pressure
lubricant such as white Lubriplate
®
or
the lubricant sold for the screw drives
on Genie garage door openers. Do
not use excessive lubricant because
it will just be messy. Run the nut
to the top of the screw and apply
a small amount of lubricant to the
middle of the threads on the screw.
Spin the nut up and down the
screw a few times by hand to
distribute the lubricant. Wipe o
any excess lubricant.
3. Inspect the tool. Inspect the screw
threads for signs of wear, distortion
or galling. Inspect the thrust bearing
for indications that it is failing such as
excessive looseness in the housing. If
any of these conditions are observed,
the screw/nut assembly should be
replaced. We sell a replacement kit
(QCRTLDMRKIT) that provides a
new screw, nut, thrust bearing, pivot
pin and clip ring. Use a small blade
type screwdriver to pry the clip from
the pivot pin holding the screw/nut
assembly, push the pin out to remove
the screw/nut assembly. Reverse the
steps to install the new screw/nut
assembly. Typically, replacement of
these parts should return the tool to
“good as new” performance.
4. Check the adjustment of
the tool. This tool has a blue LED
light that will light when a crimp is
complete. If the nished crimp will
not gage properly with the gage
supplied in the tool kit, it means that
the set point for the light
needs adjustment.
a. First check to see that the
batteries for the LED do not
need replacing by removing all
inserts from the tool jaws and
closing the jaws. The LED should
light. If it does not light, replace
the batteries and check again.
When the LED lights with the tool
jaws closed without any inserts,
continue with Steps b. and c.
b. Place the 2" inserts in the tool
jaws and close the tool without
tightening the nut. If the LED lights
up, an adjustment is needed.
c. If the LED does not light, place
the socket on the nut and tighten
the nut on the tool jaws by hand.
The LED should light when the
nut is tightened with a “rm” twist
by hand. The maximum force
you can exert by hand should
not be required. If the light does
not light under this condition, an
adjustment is needed.
5. Adjusting the LED set point. The
adjustable contact for the LED light is
a spring plunger that is located in the
moving jaw of the tool. The set point
is adjusted by loosening a set screw
on the side of the moving jaw with
the small Allen wrench supplied with
the tool and then turning the plunger
housing with the small spanner that is
also supplied with the tool.
a. For condition 4.b., the
plunger needs to be turned
clockwise. Only turn the plunger
approximately 30 to 45 degrees
at a time and recheck to see if the
LED does not light. Once the LED
does not light when the jaws are
closed without any force, proceed
to Step 4.c.
b. If the LED does not light when
the nut is tightened by hand as in
Step 4.c, the plunger needs to be
turned counter-clockwise. Only
turn the plunger approximately
30 to 45 degrees at a time before
rechecking to see if the LED will
light when the nut is tightened
by hand.
c. When you have achieved the
condition that the LED will not
light when the tool jaws are
closed without force but it will
light when the nut is tightened
rmly by hand, the set point for
the LED is properly set. Tighten
the set screw on the side of the
moving tool jaw with the small
Allen wrench.
6. NOTE: The LED light is an indicator,
it does not control the nished crimp
dimension. Check the nished crimp
with the crimp gage supplied with
the tool to assure that the crimps are
tight enough.
7. Other Cautions:
a. When loosening the nut after
completing a crimp, do not run
the nut all the way to the top of
the screw and jam it against the
stop with the impact wrench.
b. If for some reason you wish
to remove the nut from the screw,
the retaining screw holding the
stop washer has a left-hand
thread.
c. The thrust bearing is attached
to the nut by magnets in the nut.
Do not store items that might be
damaged by close proximity to
magnets near the tool.
CARE AND MAINTENANCE
Large Diameter Compact Crimp Tool
QCRTLDM
Form No. ZMKTG370-92, Rev. 04/16
ZURN PEX
®
, INC. 116 Maple Street, Commerce, TX 75428 Phone: 855-ONE-ZURN (855-663-9876) • 1-800-209-2148
Note: See www.zurn.com for warranty information.