How To Use

Written Instructions

(These instructions are included with every Mil3 tool you purchase).

Note: Use Crimpmaker™ PEX crimping tools to install only manufacturer approved pipe or tube with (a) copper crimp rings and (b) brass, copper, or plastic fittings manufactured to the appropriate ASTM standards for polyethylene pipe installation.

How to Use the 3/4”, 1/2” and 3/8” tools

Please refer to the following drawing while reading the instructions:

1-demo-.png

 

  • Pull back on the moving handle and open the jaws fully (your Crimpmaker does not work like pliers… don’t force the handles apart)
  • Position the jaws squarely around the ring
  • Gently let the handles open to close the jaw on the ring
  • Squeeze handles together to get the complete crimp. One crimp only!
  • Pull back on the moving handle to release the jaws from the crimped ring
  • Measure the crimped ring with the go/no-gauge supplied with your tool. See the table below for crimp specifications. Do not measure bumps on the ring where the jaws meet. If the GO gauge does not fit, or the NO-GO gauge does fit, remove the crimped ring and replace the fitting. Adjust and calibrate the tool if needed. Then crimp the fitting with a new ring.

PEX Ring Crimped Diameters

2-demo.png   

Adjustment

All crimp tools wear, which increases the crimp diameter after many crimps. When your crimps start to approach the maximum ring diameter, Crimpmaker™ tools can be adjusted to bring crimps back within spec.

 

3/4", 1/2" and 3/8” Pex Crimping Tool Adjustment

Please refer to the following figure while reading the instructions:

3-demo.png

 

  • The small tools are adjusted using the back hexagonal pin.
  • Note the position of the pin on the body numbers.
  • Top adjust for a tighter crimp, remove the e-clip (for example, pop it off with a screwdriver).
  • Slide the back pin head out about ¼”
  • Rotate the back pin until the line on the hexagonal head points to the next highest number on the tool body.
  • Push the pin back in and re-fit the e-clip.

How to Use the 1” PEX Ring Crimping Tool

Please refer to the following drawing while reading the instructions:

4-demo.png

 

To Crimp with tube, fitting, and ring in place:

  • Put adjustment lever in Position 1 (1)
  • Pull back on the moving handle and open the jaws – A
  • Position the jaws squarely around the ring – B
  • Ease the handles open to close the jaws on the ring – C
  • Squeeze the handles closed to complete the first crimp stage – D
    Without moving the jaws on the ring, release the moving handle only enough so that the adjustment lever can be moved to Position 2 (2)
  • Squeeze handles together to complete the second crimp stage
  • Without moving the jaws on the ring, release the moving handle only enough so that the adjustment lever can be moved to Position 3 (3)
  • Squeeze handles together to complete the third, final crimp stage
  • During the three crimping stages, the jaws should stay at the same place on the copper ring. Do not re-crimp after the third crimp.
  • Pull back on the moving handle to release jaws from the crimped ring – E
  • Using the go/no-go gauge supplied with your tool, measure the crimped ring for diameter between 1.175 inches and 1.190 inches. The out of round should be less than 0.006 inches. Do not measure bumps on the ring where the jaws meet. If the GO gauge does not fit, or the NO-GO gauge does fit, remove the crimped ring and replace the fitting. Adjust and calibrate the tool if needed. Then crimp the fitting with a new ring.

1” PEX Crimping Tool Adjustment

Newer models of the 1” Crimpmaker™ PEX ring crimping tool do not require field adjustment. If you have an older model of the 1” tool, please refer to the following figure while reading the instructions:

5-demo.png

For the 1” tool, adjust the hex pin in the moving jaw.

  • Note the number position of the pin (P2) on the body numbers (P3)
  • Remove the e-clip from the pivot pin (P1)
  • Push the pin out to free the moving jaw to swing the jaw up to the top of the tool body.
  • Push the adjustment hex pin (P2) out of the jaw about ¼”, or just enough to allow it to rotate.
  • Rotate the pin to move the dot to the next highest number shown on the tool body (P3). Hold the handles together during this adjustment to make it easier to push the hex pin (P2) back into the jaw after it has been rotated.
  • Swing the moving jaw back into the body and reassemble the pivot pin and e-clip. Retest the tool at the new adjusted setting and proceed.

 

Lubricant

For maintaining your PEX Crimper we recommend using WD-40