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6E

TROUBLE SHOOTING YOUR SPRAYER

DÉMONTER ET RÉPARER LA POMPE À PISTON

7F

1) Retirez la goupille fendue et la poignée de la pompe. Placez la pompe vers
vous et déposez l'appareil sur le dos (figure 1). Desserrez la pince du boyau et
retirez le boyau du pulvérisateur. Attention : il pourrait rester du liquide dans le
boyau et dans le cylindre de pression. Retirez l'écrou et le boulon du bouchon
protecteur et retirez le bouchon (réf. figure 9). Tournez l'arbre de la pompe pour
atteindre les deux boulons du levier (A). Utilisez une clé allen et retirez les
boulons du levier. Sortez l'assemblage de piston (B) du cylindre du piston (C).

2) Retirez l’assemblage du cylindre de piston en tournant le cylindre dans le
sens antihoraire en regardant le pulvérisateur du bas. Attention : le cylindre
du piston pourrait avoir des bords tranchants.

3) Vérifiez s'il y a des égratignures verticales à l'intérieur du cylindre du
piston et dans le piston. Si l'un ou l'autre ou les deux sont égratignés,
remplacez-les.

4) Pour remplacer le collier, retirez-le de la calotte du piston

avec le pouce (figure 6). Vous verrez des fentes ajustées pour

installer le nouveau collier sur la calotte du piston.

6) Lubrifiez les deux joints toriques sur le cylindre du piston (ne laissez
aucune graisse sur la plaque porte-soupape) et vissez l'assemblage du
piston sur la base du cylindre de pression. Vissez le cylindre du piston dans
le sens horaire jusqu'à ce qu'il soit serré et que le joint torique inférieur ne
soit plus visible. Lorsqu'il est bien placé, la languette du cylindre du piston
s'alignera avec la rainure sur la base du cylindre de pression.

5) Retirez la plaque porte-soupape et les joints toriques de l’extérieur du

cylindre du piston. Assurez-vous que les joints toriques sont réglés

correctement dans les rainures exposées, installez la nouvelle plaque porte-

soupape et les deux joints toriques. Il y a une deuxième plaque porte-

soupape à l’intérieur du cylindre du piston. Tirez la cheville rouge ou orange

et retirez la plaque porte-soupape utilisant un tournevis à tête Phillips n° 2.

Installez une nouvelle plaque porte-soupape et replacez la cheville de

retenue fermement en place avec un tournevis à tête Phillips n° 2.

Figure 1

Figure 6

Figure 2

Figure 3

Figure 4

Figure 5

C
B

A

STORING / MAINTAINING YOUR SPRAYER

•  The sprayer should be stored out of direct sunlight in a cool dry space.

•  Before freezing weather make sure to drain all liquid in the tank, pump, pressure cylinder, hose,

shut-off valve, wand and nozzle, to avoid liquid expansion and cracking in the  sprayer components

(See “Cleaning” section). Lock the shut-off valve   in the “open” position.

•  When service is required call your nearest dealer and always insist on original manufactured

replacement parts.

•  Inspect the hose, wand, pump, tank and shut-off valve for wear, damage or leaks on a regular basis

and repair defects promptly.

Symptom

Difficulty actuating the pump handle and/or

Upper valve plate sticks

Clean or replace valve plate

pump handle moves itself back up.

Piston cylinder outlet passage clogged

Clean piston cylinder outlet passage

Little or no resistance during

Damaged/worn/dirty/upper valve plate

Clean or Replace Valve Plate

repeated pumping – no pressure.

Damaged /worn upper o-ring on piston cylinder

Replace O-ring

Piston Collar or piston cylinder 

Replace Collar or Piston cylinder assembly

assembly is worn

Too much resistance after just a few 

Not enough air cushion in the pressure

Release pressure in pressure chamber

pumping strokes but pressure only lasts

chamber

Remove the hose & drain pressure

briefly.

chamber. Reconnect the hose.

Upper valve plate damaged/worn/dirty

Clean or replace upper valve plate

Upward pumping action is more difficult 

Vent hole is clogged

Clear the vent hole in cap

and/orpump handle moves itself backdown.

Lower valve plate sticks

Clean or replace the valve plate

Clogged intake filter

Clean the In-Tank filter and or removable
cartridge filter

Piston cylinder intake clogged

Clean piston cylinder intake

Leaks at Piston Cylinder

Damaged/worn/Dirty Collar

Clean or Replace Piston Collar

Damaged Piston Cylinder

Replace Piston Cylinder

Damaged Piston

Replace Piston

Shut-off leaks

Connections loose 

Tighten connection

Worn or damaged shut-off

Rebuild or replace the shut-off valve

Wand assembly leaks

Connections loose 

Tighten connection

Damaged or worn o-ring/gasket

Replace o-ring/gasket

Nozzle assembly leaks

Connections loose 

Tighten connection

Damaged or worn o-ring/gasket

Replace o-ring/gasket

Leak between pump assembly

Pump clamp loose

Tighten clamp

and tank

O-ring worn or damaged

Replace pressure chamber oring

Hose leaking at tank outlet

Hose clamp loose

Tighten clamp

Hose leaking at shut-off

Connection loose

Tighten retaining nut

Damaged or worn o-ring/gasket

Replace o-ring/gasket

Possible Reason

Correction

Summary of Contents for MS-40BP

Page 1: ...011289 R0211 Carefully Read These Instructions Before Use WARNING Model MS 40BP 4 0G 15 1L Use and Care Manual Backpack ...

Page 2: ...zed sprayer in the hot sun or anywhere near a heat source Heat can produce pressure to build up causing sprayer to ignite or explode resulting in injury or death NEVER pressurize sprayer by any means other than the original pump Over pressurizing can cause sprayer to explode resulting in injury or death DO NOT attempt to modify or repair this product except with original manufacturer s parts NOTE ...

Page 3: ...but avoid using the same sprayer for plant feeding or protection without thoroughly cleaning see cleaning section the sprayer first General Household Use Apply detergents vinegar cleaning solutions warm water do not exceed 120 F 49 C or nontoxic household cleaning chemicals for carpets floors walls glass counter tops and ceilings DO NOT use sprayer that has been used with herbicides pesticides or ...

Page 4: ...he tank Attach the lower end of the straps by clipping the strap hooks to the metal frame between where the frame exits the tank and curves around NOTE If your straps become contaminated with dirt or chemicals wash with mild soap and water and let dry overnight If this does not remove the contamination replace with new straps WAND CLIP The wand can be attached to the pump handle using the wand cli...

Page 5: ... removable filter incorporated into the inlet side of the shut off valve see section disassembling and repairing the shut off valve Make sure pressure is released before detaching the hose from the shut off It is best to have no or minimal fluid in the pressure cylinder before removing and reinstalling the stage 4 shut off filter as fluid can leak from the hose Stage 1 filter basket Stage 2 remova...

Page 6: ...e tank thoroughly after each use 2 Pump the sprayer handle until all of the contents and air exit through the nozzle minimum of 30 strokes 3 Fill tank half way with water and pump the water out as explained in step 2 repeat several times as necessary Other Cleaning Hints Improper spray distribution usually means the nozzle is clogged remove the nozzle and clean it Soap can be added to the water to...

Page 7: ...cushion in the pressure Release pressure in pressure chamber pumping strokes but pressure only lasts chamber Remove the hose drain pressure briefly chamber Reconnect the hose Upper valve plate damaged worn dirty Clean or replace upper valve plate Upward pumping action is more difficult Vent hole is clogged Clear the vent hole in cap and orpump handle moves itself backdown Lower valve plate sticks ...

Page 8: ...t get any grease on the valve plate and screw the piston assembly into the pressure cylinder base Screw the piston cylinder clockwise until tight and the bottom O ring is no longer visible When properly placed the tab on the piston cylinder will line up with the rib on the pressure cylinder base DISASSEMBLING AND REPAIRING THE PISTON PUMP Figure 1 7E 5 There are 2 valve plates on the piston cylind...

Page 9: ...etween the pressure chamber o ring and tank DISASSEMBLING AND REPAIRING THE PUMP ASSEMBLY 1 Release the pressure from the sprayer and remove all liquid from both the pressure chamber and tank 2 Remove hose 3 Remove the In tank filter from the pressure cylinder located inside the tank fig 1 4 Remove 2 bolts attaching the pivot lever to the pump shaft and remove piston assembly fig 2a 2b 5 Remove th...

Page 10: ...EMBLING AND REPAIRING THE SHUT OFF VALVE 9E Figure 5 8 At this point the filter cartridge in the pressure chamber base can be removed with pliers and cleaned fig 4 9 The pressure chamber o ring can also be replaced DO NOT stretch the o ring over the bottom flange Assemble the o ring over the top of the chamber Apply petroleum jelly to the o ring before reinstalling pump asembly into the tank fig 3...

Page 11: ...Y 99944100484 Flat Fan Nozzle 99944100483 Poly Adjustable Nozzle 99944100482 Brass Adjustable Nozzle Screw Cap O ring 99944100480 Wand Assembly Wand 99944100478 Shut off Assembly 99944100481 Filter Replacement Kit 99944100479 Hose Assembly Hose Washer Retaining Nut Hose 99944100485 Nozzle Kit ...

Page 12: ...ssembly 99944100474 Piston Cylinder Assembly 99944100473 Filter Basket Cap 99944100471 Piston Pump Repair Kit O ring Piston Cylinder O ring Pressure Chamber Collar Pump Piston Valve Plate Piston Cylinder 99944100472 Straps A F D in jo in F D d APPL É p u d N fe H p d U n r N t U d d s INFOR 1 ASSEM 1 Assu le ro 2 Tour 99944100489 Pump Handle ECHO INCORPORATED 400 Oakwood Road Lake Zurich IL 60047 ...

Page 13: ...n a piston pump sprayer Wear items including but not limited to seals gaskets pistons hoses diaphragms straps or any wear item These items are covered for 90 days from date of purchase Any mis use of product is not covered including but not limited to using un approved chemicals or parts un approved uses using damaged or missing units parts during operation or modifying your sprayer in any manner ...

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