DOSATRON D20S 100 GPM Mini Maintenance Kit Instruction Manual

September 12, 2024
DOSATRON

D20S 100 GPM Mini Maintenance Kit

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Product Specifications:

Product Usage Instructions:

1. Removal of Suction Hose:

Loosen clamp (20M046) and remove the suction hose.

2. Plunger Maintenance:

Unscrew injection stem assembly (20CD001) to access the plunger
(20PJ026). Remove upper plunger seal (20J012) and replace it with a
new seal.

3. Check Valve Replacement:

From the injection stem assembly (20CD001), unscrew the check
valve nut (20P038). Replace the lower check valve assembly
(20PJ011) and the flat check valve seal (20J014).

4. Check Valve Assembly Update:

Combine the upper check valve assembly (20PJ010) with the new
lower check valve assembly (20PJ011) and insert them back into the
injection stem. Secure with the check valve nut (20P038).

5. Injection Sleeve Maintenance:

Apply Dosa-Lube onto the injection sleeve o-ring (20J010) and
reattach the injection stem assembly (20CD001) back to the
unit.

6. Suction Hose Adjustment:

Cut 1 inch off from the top of the suction hose for a secure
fit. Reattach the hose and metal clamp (20M046) to the unit.

CAUTION: Use Proper Protective Equipment as
parts may contain concentrated chemicals. Avoid using sharp tools
to prevent plunger damage.

Frequently Asked Questions (FAQ):

  1. Q: How do I remove a stuck upper check valve
    assembly?

A: If the upper check valve assembly is stuck
inside the white stem, insert the end of the suction hose through
the top of the stem and push the upper check valve out.

  1. Q: What should I do if I need to remove a seal
    without tools?

A: Squeeze the seal on either side to raise it,
then slide it over the groove. Avoid using sharp tools to prevent
plunger damage.

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Mini Maintenance Kit
Part #: 20PJ030MINI-H D20S 100 GPM
1-800-523-8499 www.dosatron.com
Vea el reverso para instrucciones en Español.

Instructions
(Parts included in kit noted in blue)
1. Loosen clamp (20M046) and remove the suction hose.

4. Take the updated upper check valve assembly (20PJ010) and the new lower check valve assembly (20PJ011), put them together, then insert it back into the injection stem (20PJ009). Screw the check valve nut (20P038) back on.

Suction hose

I 20M046

2. Unscrew the injection stem assembly (20CD001) and remove to expose the plunger (20PJ026). Remove and discard the upper plunger seal (20J012). Replace with the new seal.

20PJ026

20J012

20CD001

20CD001

20PJ011

20PJ010 20P038

5. Rub a small amount of Dosa-Lube onto the injection sleeve o-ring (20J010) and screw injection stem (20CD001) back at the bottom of the grey base of the unit.

Kit Contents:

20PJ011: Lower Check Valve Assembly

20J012:
Upper Plunger Seal

20J014:
Flat Check Valve Seal

DOSA-LUBE: Silicone

20J010

20CD001

3. From the injection stem assembly (20CD001) unscrew the check valve nut (20P038). Remove and replace the lower check valve assembly (20PJ011). Pull out the upper check valve assembly (20PJ010) to remove and replace the flat check valve seal (20J014).
20CD001

6. Cut 1″ off from the top of the suction hose to ensure a tight fit, make sure to cut in a straight line.
Attach the hose and the metal
clamp (20M046) back to the unit.

Use Dosa-Lube on specified parts only.
CAUTION: Parts may contain STOP concentrated chemicals. The use of
Proper Protective Equipment is recommended when performing maintenance.
To remove seal easily without tools, squeeze it on either side to raise the seal, then slide it over the groove. Using sharp tools could damage the plunger.

20J014

20PJ010

20PJ011
20P038
NOTE: If the upper check valve assembly (20PJ010) is stuck inside the white stem, insert the end of the suction hose through the top of the stem and push the upper check valve out.

Suction Sose

I 20M046

Mini Kit de Mantenimiento
Parte #: 20PJ030MINI-H

Instrucciones
(Partes en color azul incluídas en el kit)
1. Afloje la abrazadera (20M046) y remueva la manguera de succión.

4. Coloque juntos los ensambles superior (20PJ010) e inferior (20PJ011) de la válvula cheque. Insertelos de nuevo en el montaje de inyección (20PJ009). Atornille la tuerca de la válvula cheque (20P038).

D20S 100 GPM
1-800-523-8499 www.dosatron.com
See the back for English instrucitons

Manguera de succión

I 20M046

2. Desatornille el montaje de inyección (20CD001) y retírelo para exponer el émbolo (20PJ026). Remueva y deseche el sello superior del émbolo (20J012). Reemplacelo con el nuevo.

20PJ026

20J012

20CD001

20CD001

20PJ011

20PJ010 20P038

5. Aplique Dosa-Lube sobre el o-ring (20J010) de la manga de inyección y vuelva a atornillar el montaje de inyección (20CD001) a la base gris de la unidad.

Contenido del Kit:

20PJ011: Ensamble Inferior de la Válvula Cheque

20J012:
Sello Superior del Émbolo

20J014:
Sello Plano de la Válvula Cheque

DOSA-LUBE: Silicona
Use Dosa-Lube únicamente sobre las partes indicadas.

PRECAUCIÓN: Las partes pueden STOP contener químicos concentrados. El uso
de Equipo de Protección Adecuado es recomendado cuando se efectúa el mantenimiento.
Para remover el sello fácilmente sin el uso de herramientas, apriete a ambos lados del sello, y deslícelo sobre la ranura. El uso de herramientas afiladas podría dañar el embolo.

20J010

20CD001

3. Desatornille la tuerca de la válvula cheque (20P038) del montaje de inyección (20CD001). Remueva y reemplace el ensamble inferior de la válvula (20PJ011). Saque el ensamble superior de la válvula (20PJ010) para remover y cambiar el sello plano (20J014).
20CD001

6. Corte 1 pulgada en línea recta de la punta de la manguera de succión. Sujete la manguera y la abrazadera metálica (20M046) de nuevo a la unidad.

20J014

20PJ010

20PJ011
20P038
NOTA: Si el ensamble superior de la válvula (20PJ010) se queda atrapado en el vástago blanco, empujero con la manguera por la parte superior del vástago.

Manguera de succión

I 20M046

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