dosatron D14MZ3000AFII Manual Download Page 1

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800-523-8499 • 727-443-5404

Extend the Life of Your Dosatron

REBUILD KIT

D14MZ3000AFII

Part #: MKD14MZ3000AF

Kit includes:

Part 1: Piston Kit

Upper flange
Lower flange
Omega spring
Connecting rod
Push rod seal

Part 2: Seal Kit

Injection sleeve o-ring
Injection stem o-ring
Check valve assembly
Plunger with seal

Summary of Contents for D14MZ3000AFII

Page 1: ...osatron REBUILD KIT D14MZ3000AFII Part MKD14MZ3000AF Kit includes Part 1 Piston Kit Upper flange Lower flange Omega spring Connecting rod Push rod seal Part 2 Seal Kit Injection sleeve o ring Injection stem o ring Check valve assembly Plunger with seal ...

Page 4: ... and discard Flip the piston upside down and follow steps 3 and 4 to remove the lower or smaller diameter flange To remove the motor and valve support assembly from the piston shell you will need a flat head screwdriver Using the screwdriver remove the upper valves from the guide The valves look like golf tees and will drop down and out of the piston shell Set them aside 4 5 6 2 ...

Page 5: ... 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 9 8 7 3 ...

Page 7: ...7 443 5404 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 14 13 15 5 ...

Page 8: ...s 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 Before reinstalling the push rod and valve support assembly look inside the piston shell You will notice four holes in a line and a single hole on the other side 16 17 18 6 ...

Page 9: ...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 This is where the connecting rod sits in the piston The key is to make sure the white connecting rod drops into the notches inside the piston shell 20 19 21 7 ...

Page 11: ...4MZ3000AF Part 2 Seal Kit Instructions PJDI139 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 1 2 3 ...

Page 12: ...tronusa com Unscrew and remove the check valve nut Grab the barb and pull the check valve assembly straight out It usually comes out in two pieces Discard all check valve parts Unscrew and remove the lock nut 4 5 6 10 ...

Page 13: ...3 8499 727 443 5404 11 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 9 8 7 ...

Page 14: ... 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 10 11 12 12 ...

Page 15: ...3 8499 727 443 5404 13 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 14 13 15 ...

Page 16: ...ith Seal Part PJDI138 into the bottom of the piston shell Using the needle nose pliers twist the plunger a quarter turn clockwise to lock 16 17 18 14 Install the new Check Valve Assembly Part PJDI140 into the stem Make sure it is in the position shown before inserting into the stem ...

Page 17: ... NOTE Be extremely careful not to bend the plunger when reassembling Align the notches in the lower part of the blue body with the teeth on the top of the injection stem assembly Make sure the scale of your preference is facing out If the scale you prefer is not facing out loosen the stem nut and remove Pull the stem down slightly rotate 180 degrees and push it back up 20 19 21 ...

Page 18: ...at www dosatronusa com Reinstall the nut hand tight Reposition the ferrule as shown 22 23 24 16 Before installing the suction hose slide the ferrule back onto the hose Cut a half inch off the top of the hose ...

Page 19: ...e to make sure it is connected securely If the hose comes off easily cut another half inch off and reattach 17 26 25 27 For video instructions go to https www youtube com user DosatronIntl and view the D14MZ3000 Seal Kit Video or scan the QR code with your smart phone D14MZ3000 Seal Kit Video Click on QR code to view video ...

Page 20: ...CHAT at www dosatronusa com 2090 Sunnydale Blvd Clearwater FL 33765 800 523 8499 www dosatronusa com ...