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dosatron D14MZ2 Manual
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dosatron D14MZ2 Manual

Rebuild kit
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Extend the Life of Your Dosatron
REBUILD KIT
D14MZ2
ENGLISH

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Summary of Contents for dosatron D14MZ2

  • Page 1 Extend the Life of Your Dosatron REBUILD KIT D14MZ2 ENGLISH...
  • Page 2 Congratulations on purchasing your Dosatron Rebuild Kit. Part #: MKD14MZ2AF • MKD14MZ2K • MKD14MZ2VF This kit is for the Dosatron D14MZ2 and consists of two parts: • Part 1 - Piston Kit • Part 2 - Seal Kit Part 1 - Piston Kit Contents:...
  • Page 3 D14MZ2 Part 1: Piston Kit Instructions Begin by removing the piston from your Dosatron injector. Unscrew and remove the bell housing (you may use a universal strap wrench), pulling the piston out of the body. Set the bell housing and body aside.
  • Page 4 You will need to apply pressure to the flange on either side of the notch as you twist the flange counter clockwise. It may be a snug fit. Lift to remove and discard. Flip the piston upside down and follow steps 3 and 4 to remove the lower or smaller diameter flange.
  • Page 5 Grasp the top of the white plastic parts of the mechanism and lift straight up. You now have two subassemblies – the push rod on the left and the valve support frame on the right. In order to disassemble the push rod, remove the connecting rod off the Omega spring.
  • Page 6 Twist to remove the Omega spring out of the push rod. Install the new Omega Spring (Part #: PDI651) by carefully pushing the Omega spring into the push rod. Slide the other end of the Omega spring into the new Connecting Rod (Part #: PDI649).
  • Page 7 Install the new Upper Flange (Part #: PDI643) by locating the small tooth on the inner diameter of the flange. Now locate the notch on the piston shell. Be careful not to install the flange upside down. 1-800-523-8499 • 1-727-443-5404...
  • Page 8 Align the tooth with the shell and press down and twist a quarter turn clockwise to lock. If it is difficult to twist or if the flange lifts up easily, just remove the flange, realign and try again. Install the new Lower Flange (Part #: PDI644) the same way.
  • Page 9 Notice how the valve support frame aligns on the side with the four holes, making sure it goes into the grooves. To demonstrate the alignment of the push rod assembly, the curved top would face inward, inserting the push rod into the single hole.
  • Page 10 Now to insert both the valve support frame and the push rod into the piston shell, use your index finger to push on the spring. This will set everything into place and you will hear a click. If the parts aren’t fitting together, just lift both subassemblies out and try again.
  • Page 11 For video instructions go to: http://www.dosatronusa.com/d14mz2/ and view the D14MZ2 Troubleshooting Video and the D14MZ2 Piston Video or scan the QR codes below with your smart phone. If you have any questions, call 1-800-523-8449 or to CHAT visit www.dosatronusa.com.
  • Page 12 D14MZ2 Part 2: Seal Kit Instructions PJDI116 Unscrew the suction hose nut and remove the suction hose. Unscrew the injection stem nut. Pull the injection stem straight out from the body of the injector. Set the nut and body aside.
  • Page 13 Unscrew and remove the check valve nut. Grab the barb and pull the check valve assembly straight out and discard. Unscrew and remove the lock nut. 1-800-523-8499 • 1-727-443-5404...
  • Page 14 Remove the C clamp by spreading the opening and sliding it down over the threads. Unscrew and remove the adjusting nut. Push the white injection stem up and out of the black sleeve. CHAT at www.dosatronusa.com...
  • Page 15 Remove and replace the Injection Stem O-Ring (Part #: JDI120). Remove and replace the Injection Sleeve O-Ring (Part #: JDI100). Align the groove in the white stem with the tooth inside the lower portion of the black sleeve. Sliding the stem down in, as far as possible.
  • Page 16 Thread the adjusting nut back onto the black sleeve. Replace the C clamp by sliding it over the threads. Rotate until it clicks into place. Thread on the lock nut and hand tighten. CHAT at www.dosatronusa.com...
  • Page 17 Install the new Check Valve Assembly (Part #: PJDI115) into the stem. Reinstall the check valve nut. Set the stem aside and pick up the blue body. Remove the Plunger Seal (Part #: J009) by pinching and rolling it off the plunger.
  • Page 18 Align the notches in the lower part of the blue body with the teeth on the top of the injection stem assembly. Reinstall the nut hand tight. If the scale you prefer is not facing out, just loosen the stem nut and remove. Pull the stem down slightly, rotate 180 degrees and push it back up.
  • Page 19 Slide the hose onto the barb. Reattach the hose nut. For video instructions go to: https://www.youtube.com/user/DosatronIntl and view the D14MZ2 Seal Kit Video or scan the QR code with your smart phone. D14MZ2 Seal Kit Video 1-800-523-8499 • 1-727-443-5404...
  • Page 20 2090 Sunnydale Blvd. • Clearwater, FL 33765 1-800-523-8499 • www.dosatronusa.com CHAT at www.dosatronusa.com...