Dosatron DM11F Istruzioni operative

Page 1

Step 3: Next grasp the plunger, twist it ¼ turn counter

clockwise. Pull straight out to remove.

Step 2: Remove stem by grasping and pulling

straight down.

This DM11F Troubleshooting will cover: The medicator is clicking, but

not drawing the solution or liquid is going down into the stock tank.

DM11F Troubleshooting - Part 1

NOTE: Before you start, make sure the unit is clicking.

Step 1: Unscrew and remove the stem nut.

Scan the QR

code to watch

our DM11F

Troubleshooting

video.

Page 2

Step 4: Set the Medicator down and inspect the plunger

seal (J009) for nicks, grooves, or wear.

Step 5: You can also test by taking the stem and

inserting the plunger and then pulling it out. It should

make a pop sound. If not or if you see damage, it is

denitely time to replace the plunger seal (J009).

Step 6: Now unscrew and remove the check valve nut.

DM11F Troubleshooting - Part 1

Page 3

DM11F Troubleshooting - Part 1

Step 9: Once you have the parts out, make sure they are

not damaged, gummy, sticky, or missing. If the parts are

dirty, you can clean and re-install. But if they are dam-

aged or missing it’s time to replace. Remember to keep

these parts clean and in good shape so your check valve

will do its job.

Step 8: Grasp the white retainer (PDI739) and twist it ¼

turn counter clockwise to release the check valve parts.

Remove the spring and the cone. Inspect the o-ring

(JDI105) and replace if worn or scored.

NOTE: The DM11F Mini Maintenance Kit (PJDI900MINI-LS)

includes:

You may also purchase these parts separately.

Step 7: Pull the check valve straight out. It may be a bit

snug, but it will slide out.

• Check valve spring (MDI358)

• Check valve cone o-ring (JDI105)

• Medicator Rx (Cleanser-LS)

• Plunger seal (J009)

• Top guide (PDI739)

• Check valve cone (PDI729)

• Silicone (Dosa-Lube)

Page 4

DM11F Troubleshooting - Part 1

Step 12: Replace the retainer (PDI739) by aligning it and

turning it a ¼ turn clockwise to lock.

Step 11: Slide the spring (MDI358) over the top of the

neck of the cone.

Step 10: To reassemble, put the cone (PDI729) back into

the check valve.

Page 5

DM11F Troubleshooting - Part 1

Step 15: Next, take the check valve nut and thread it

back onto the stem.

Step 14: Reinstall the check valve into the stem.

Step 13: Before reinstalling the check valve, pull on the

top to make sure it stays together.

Page 6

Step 18: Now, reinstall the stem.

Step 17: Test the connection, by pushing and pulling the

plunger. It should click.

DM11F Troubleshooting - Part 1

Step 16: Insert the plunger into the housing, press it in

as far as it will go and twist ¼ turn clockwise to lock.

Page 7

Step 20: One last thing . . . take a look at the top of the

suction tube. If it looks like it ares out, cut an inch or so

off and replace. Or, if the suction tube is cracked, has

holes, is rigid, or looks really old, replace.

Step 19: Hand tighten the stem nut.

DM11F Troubleshooting - Part 1

Note: To watch the video go to Dosatron’s DM11F video page: https://www.youtube.com/

watch?v=Xw0aY3WfLXk or the YouTube Channel: www.youtube.com/user/DosatronIntl

Dosatron International, Inc.

2090 Sunnydale Blvd. • Clearwater, FL 33765

800-523-8499 • www.dosatronusa.com

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