dosatron D14MZ5VFII, Manual

Page 1: ...Your Dosatron REBUILD KIT D14MZ5VFII Part MKD14MZ5VF 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 ...

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 PJDI117 Check Valve Assembly JDI122 Injection Stem O Ring JDI100 Injection Sleeve O Ring JDI121 Plunger Seal Part 2 Seal Kit Remember to wear proper protection when performing maintenance such as gloves eyewear and apron ...

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 the top or larger diameter flange locate the small notch inside the black piston shell This is where a tooth on the inside of the flange locks it into place 1 2 3 1 ...

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 6: ...nd 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 Seal Part PDI648 Remove by grasping and turning counter clockwise Carefully slide the new push rod seal onto the push rod as far as it will go and twist a quarter turn clockwise to lock 10 11 12 4 ...

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 10: ...s 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 snapping them into the valve support frame To test the piston pull the push rod up and press it down a few times It should click in both directions 22 23 24 8 ...

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 your smart phone If you have any questions call 800 523 8449 or to CHAT visit www dosatronusa com D14MZ5 Piston Video D14MZ5 Troubleshooting Video 9 Click on QR code to view video ...

Page 12: ...MKD14MZ5VF Part 2 Seal Kit Instructions PJDI120 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 body aside 1 2 3 10 ...

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 the black sleeve 9 8 7 12 ...

Page 15: ...lace 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 stem down in as far as possible 10 11 12 13 ...

Page 16: ...com 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 hand tighten 14 13 15 14 ...

Page 17: ...he new Check Valve Assembly Part PJDI117 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 the groove on the plunger 16 17 18 15 ...

Page 18: ...rt 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 20 19 21 16 ...

Page 19: ...uction 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 www youtube com user DosatronIntl and view the D14MZ5 Service Video or scan the QR code with your smart phone D14MZ5 Service 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 ...