dosatron D14MZ5VAFII Manual Download Page 1

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800-523-8499 • 727-443-5404

Extend the Life of Your Dosatron

REBUILD KIT

D14MZ5VAFII

Part #: MKD14MZ5VAF

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 seal

Summary of Contents for D14MZ5VAFII

Page 1: ...ur Dosatron REBUILD KIT D14MZ5VAFII Part MKD14MZ5VAF 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 Injectio...

Page 2: ...Kit Contents PDI651 Omega Spring PDI649 Connecting Rod PDI648 Push Rod Seal PDI643 Upper Flange PDI644 Lower Flange Part 1 Piston Kit Part 2 Seal Kit Contents PJDI118 Check Valve Assembly JDI122 Inje...

Page 3: ...may use a universal strap wrench pulling the piston out of the body Set the bell housing and body aside Remove the plunger by twisting a quarter turn counter clockwise and set aside In order to remove...

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 fla...

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 t...

Page 6: ...d of the Omega spring into the new Connecting Rod Part PDI649 The key to this step is to make sure the curved top of the push rod faces in the same direction as the Omega spring Replace the Push Rod S...

Page 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...

Page 8: ...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 suppo...

Page 9: ...t 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...

Page 10: ...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 Insert the upper valves into the bottom of the upper area...

Page 11: ...and install the bell housing 25 26 For video instructions go to http www dosatronusa com d14mz5 and view the D14MZ5 Troubleshooting Video and the D14MZ5 Piston Video or scan the QR codes below with yo...

Page 12: ...D14MZ5VAF Part 2 Seal Kit Instructions PJDI120V 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 inject...

Page 13: ...800 523 8499 727 443 5404 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 4 5 6 11...

Page 14: ...com Remove the C clamp by spreading the opening and sliding it down over the threads Unscrew and remove the adjusting nut Slide the injection stem nut off Push the white injection stem up and out of t...

Page 15: ...ace the Injection Stem O Ring Part JDI122 Remove and replace the Sleeve O Ring Part JDI100 Align the tooth inside the lower portion of the black sleeve with the groove in the white stem Sliding the st...

Page 16: ...om Slide the injection stem nut up onto the sleeve and thread the adjusting nut back on Replace the C clamp by sliding it over the threads Rotate until it clicks into place Thread on the lock nut and...

Page 17: ...e new Check Valve Assembly Part PJDI118 into the stem Reinstall the check valve nut Set the stem aside and pick up the blue body Remove the Plunger Seal Part JDI121 Install the new plunger seal into t...

Page 18: ...t 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 dow...

Page 19: ...ction hose is cracked rigid or looks really old just replace it Thread the suction hose nut onto the hose Slide the hose onto the barb Reattach the hose nut 22 23 24 For video instructions go to https...

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