dosatron D14MZ2 Programmierhandbuch
Page 1
800-523-8499
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Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron.
Step 3: Also, make sure the strainer is clear of debris.
Step 2: Check to see if you feel suction on your nger.
If so, just cut 1/2” off your suction hose and reattach.
Step 1: While the unit is still installed, turn the water on.
Remove the suction hose nut and suction hose.
D14MZ2 Troubleshooting - Part 1
This D14MZ2 Troubleshooting will cover: The injector is clicking, but not
drawing the solution or liquid is going down into the stock tank.
Scan the QR
code to watch
our D14MZ2 -
Troubleshooting
video.
Page 2
800-523-8499
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Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron.
Step 4: If you don’t feel suction on your nger turn the
water off and release pressure by pressing the air bleed
button and remove the Dosatron.
Step 5: Unscrew the injection stem nut and pull the stem
straight out from the body. Set the nut and stem aside.
Step 6: Unscrew and remove the bell housing.
D14MZ2 Troubleshooting - Part 1
Page 3
800-523-8499
www.dosatronusa.com
Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron.
Step 8: Hold the piston and inspect the plunger seal for
nicks, grooves, or wear.
Step 7: Pull the piston out of the body. Set the bell
housing and body aside.
Step 9: You can test the plunger seal by inserting the
plunger down into the stem. When you pull it out it
should make a pop sound. If not, or if you see
damage it is denitely time to replace the plunger seal
(Part #: J009).
D14MZ2 Troubleshooting - Part 1
Page 4
800-523-8499
www.dosatronusa.com
Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron.
Step 10: To change, roll the seal off and install the new
one.
Step 11: Pick up the black stem, unscrew and remove
the check valve nut.
D14MZ2 Troubleshooting - Part 1
Step 12: Pull the check valve straight out. It may be a bit
snug, but it will slide out.
Page 5
800-523-8499
www.dosatronusa.com
Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron.
Step 15: To reassemble put the cone (Part #: PDI729)
onto the top of the barb.
Step 14: Once you have the parts out make sure they
are not damaged, gummy, sticky, or missing. If the parts
are dirty you can just clean and reinstall them (Part #:
CLEANSER-ALL - Dosa-Klean). If you see damage or if
parts are missing, it is time to replace.
NOTE: Remember to keep these parts clean and in good
shape so your check valve will do its job and not allow
water to go down into the solution tank.
Step 13: Set the stem aside and grasp the white retainer
and twist it a quarter turn counter clockwise to release
the check valve parts.
D14MZ2 Troubleshooting - Part 1
Page 6
D14MZ2 Troubleshooting - Part 1
800-523-8499
www.dosatronusa.com
Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron.
Step 18: Reinstall the check valve assembly into the
stem.
Step 17: Position the top guide (Part #: PDI739) over
the shaft. Align the guide and twist it a quarter turn
clockwise to lock. Give it a tug to make sure everything
is in position.
Step 16: Next slide the spring (Part #: MDI358) over
the shaft.
Page 7
D14MZ2 Troubleshooting - Part 1
800-523-8499
www.dosatronusa.com
Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron.
Step 21: Replace the bell housing, hand tight.
Step 20: Insert the piston into the blue body.
Step 19: Reinstall the check valve nut.
Page 8
D14MZ2 Troubleshooting - Part 1
800-523-8499
www.dosatronusa.com
Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron.
Step 24: One last thing, take a look at the top of the
suction hose. If it ares out cut an inch or so off and
reinstall. Or, if the suction hose is cracked, ridged, or
looks really old just replace it.
Step 23: Reinstall the nut hand tight.
Step 22: Align the notches in the lower part of the body
with the teeth on the top of the injection stem assembly.
Page 9
D14MZ2 Troubleshooting - Part 1
800-523-8499
www.dosatronusa.com
Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron.
Step 27: Hand tighten the nut. Make sure to set your
injector to the desired setting.
Step 25: Thread the suction hose nut onto the
suction hose.
Step 26: Slide it onto the barb.
Page 10
800-523-8499
www.dosatronusa.com
Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron.
D14MZ2 Troubleshooting - Part 2
Step 3: Visually inspect the upper (Part #: PDI643) and
lower (Part #: PDI644) white anges on the piston shell.
If they are worn or have scratches the anges need to
be replaced.
Step 2: Pull the piston straight out.
Step 1: Remove the blue bell housing.
This D14MZ2 Troubleshooting will cover: The injector isn’t clicking.
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