Echo MS-41BPD Manuale utente
Model MS-41BPD
4G/ 15L
013782-4 R0916
Carefully Read These Instructions Before Use
WARNING
BackpackBackpack
SprayerSprayer
Use and Care ManualUse and Care Manual
WARNING
CAUTION
1E
WARNING: Improper use or failure to follow instructions can result in explosive
failure causing serious eye or other injury. For safe use of this product you must read
and follow all instructions. Do not leave a pressurized sprayer in the hot sun. Heat can cause
pressure build-up resulting in possible explosion. Do not store or leave solution in tank after
use. Always wear goggles, gloves, long sleeve shirt, long pants and full foot protection when
spraying. Never use any tool to remove pump if there is pressure in the pressure chamber.
Never pressurize sprayer by any means other than the original pump. Do not attempt to
modify this sprayer. Replace parts only with manufacturer’s original parts. Never spray
ammable, caustic, acidic, chlorine, bleach or other corrosive solutions or
heat, pressure, or gas producing chemicals. Always read and follow chemical
manufacturer’s instructions before use with this sprayer as some chemicals may
be hazardous when used with this sprayer.
SK 1158-1
• PRE-USE CHECK: Before each use check tightness of hose nut to be sure hose is
securely attached to the shut-off assembly. Insure hose is securely attached to the
tank by tightening hose clamp if necessary. Insure that all nozzle and wand
connections are tight. Insure the large pump clamp is tight. Insure the 2 bolts
used to attach the pump lever to the pump shaft are tight.
• Do Not exceed a tank solution temperature of 120º F/ 49º C.
NOTE: The tank and hose may have residual water in it due to quality testing
performed on the sprayer.
WARNING:
This product contains chemicals, including lead, known to the state of
California to cause birth defects and other reproductive harm. Wash hands after
handling.
1. Poly
Nozzle Cap
2. Retaining
Nut
3. Nozzle
Body
4. Nozzle
Gasket
5. Elbow
Figure 3Figure 2Figure 1
1. Brass
Nozzle Cap
2. Retaining
Nut
3. Nozzle
Body
4. Nozzle
Gasket
5. Elbow
Nozzle
Gasket
Retaining Nut
Elbow
Fan Nozzle Tip
2E
APPLICATIONS & USE FOR YOUR SPRAYER
Avoid using a sprayer for general cleaning purposes if plant protection or herbicide chemicals have already
been used in the sprayer. If a sprayer has been used for plant protection or as an herbicide, clean the sprayer
completely (see cleaning section) before using.
Plant Food: Use different spray patterns for optimum foliage feeding or for fungicide and pesticide
application.
Herbicides: Reduce weeds and unwanted plants 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, 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 other toxic chemicals for household
applications.
General Outdoor Use: Use the sprayer for cleaning windows or with a detergent for general purpose
cleaning.
SPRAYER COMPONENTS & USE INFORMATION
NOZZLE ASSEMBLY
Figure 1-2
Unscrew the nozzle cap (1) from the nozzle body (3) with retaining nut (2) fastened tightly to the elbow
(5). Unscrew the retaining nut (2). Push the nozzle body (3) with the nozzle gasket (4) out of the retain-
ing nut (2). To reinstall the nozzle, reverse the above instructions.
Figure 3
Unscrew the retaining nut from the elbow and push the fan nozzle tip and gasket out of the retaining nut.
To reinstall the nozzle, reverse the above instructions.
O-ring
Wand
Retaining Nut Shut-off
Valve
WAND ASSEMBLY
1. Make sure the o-ring is installed on the end of the wand. Insert the wand into shut-off valve.
2. Turn and tighten the retaining nut clock-wise onto the shut-off valve.
3E
WAND CLIP
The wand can be attached to the
pump handle using the wand clip.
SPRAYER COMPONENTS & USE INFORMATION, Continued
Pump Handle
Positioned For Use
(right hand shown)
Figure 1 Figure 2
Line up holes
Figure 3
Slide bolt through holes
Figure 5
Right Hand
INSTALLING THE PUMP HANDLE
The pump handle can be mounted on either side of the pump shaft
(A). To install the pump handle place the handle (C) over the shaft
(A) aligning the pump handle holes and shaft holes. Slide the bolts
(B) through the aligned holes as shown in figure 1 thru 4. Tighten
nuts (D) to bolts. There are holes in the pump handle to allow for
either right (fig.5) or left (fig.6) hand mounting.
Figure 6
Left Hand
Figure 4
Tighten nut to bolt
Threaded Bolt
Nylon Lock Nut
C. Pump Handle
A. Pump Shaft
B. Bolts
D. Nuts
STOWAWAY PUMP HANDLE
Pull
up
Rotate
180º
Set
into
slot
4E
INSTALLING THE SHOULDER STRAP
The top of the shoulder straps are attached to the 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.
In the event that the sprayer harness (straps) become contaminated with
chemicals, it is recommended to thoroughly wash the straps with soap &
water and allow to dry before using the sprayer.
SPRAYER COMPONENTS & USE INFORMATION, Continued
Stage 3
(removable
Shut-off filter)
Figure 1 Stage 1
(Filter
basket)
3 STAGE FILTERING SYSTEM
Stage 2
(Removable
In-Tank Filter
Pressure
Cylinder
This backpack sprayer is equipped with a 3 stage filtering system (see figure
1). Stage 1 is a filter basket incorporated into the tank opening where fluid is
added. Stage 2 filter is located at the inlet of the pressure cylinder. Stage 2
is a removable In-Tank filter. Stage 3 is a removable filter incorporated into
the shut-off assembly. Periodic cleaning of these filters is recommended to
ensure consistent fluid flow through the sprayer. This will also reduce sprayer
component wear.
The stage 3 filter is a 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 3 shut-off filter as fluid can leak from the hose.
Figure 2 - Stage 2 (removable In-Tank filter)
Guide edge facing away from
pressure cylinder Guide edge on pressure
cylinder
Figure 3
5E
SPRAYER COMPONENTS & USE INFORMATION, Continued
FILLING THE SPRAYER
Make sure the filter basket is in place to keep debris from entering the tank.
Determine the amount of mixture needed for your application. Add the proper amount of water to
the tank. Add the proper amount of chemical to the tank (check the chemical label for proper ratio of
chemical). Stir mixture in tank with a clean utensil (like a paint stirrer). The tank will hold the 4-gallon
(15.1L) capacity plus the chemical.
It is not necessary to completely fill the sprayer tank with each use. You can fill the tank with only the
amount needed for each application.
Always follow the manufacturer’s instructions included on their product label.
HELPFUL SPRAYING INFORMATION
Use RAPID pump strokes to prime the pump. You will know the pressure chamber is filling with liquid
when you feel firm resistance from the pump. The air in the pressure chamber is compressed from
repeated strokes. By pressing the hand lever on the shut-off, the valve opens. For safety lock-off feature
(no-spraying), pull up on handle and move red locking mechanism into lock-off position as shown in fig.
1. To disengage, pull up on handle and return red locking mechanism to neutral position as in fig. 3. For
lock-on feature (continuous spraying), push down on handle and move red locking mechanism into lock-
on position as shown in fig. 2. To disengage, push down on handle and return red locking mechanism to
neutral position as shown in fig. 3.
LOCK-ON POSITION NEUTRAL POSITIONLOCK-OFF POSITION
Locking Mechanism
Handle
Up
Handle
Down
Figure 1 Figure 2 Figure 3
For easy pump action use the END of the pump handle. The amount of liquid delivered during spraying
depends on the rate of pump stroke. The fan nozzle tip is rated at .4 gpm at 40psi. This is the nominal
operating pressure of the sprayer.
Note: If you experience a rapid drop in pressure, drain the sprayer completely and pump the handle
with an empty tank. The pressure chamber will fill with the required volume of air to repressurize.
Perform this procedure from time to time as routine maintenance.
In the event that the handle becomes stuck in the lock-on (continuous spraying) position and the tank
pressure needs to be relieved, carefully open the tank and place the wand inside the tank until the
pressure is relieved.
6E
SPRAYER COMPONENTS & USE INFORMATION, Continued
POWDER-BASED CHEMICALS
Powder-based chemicals (powder mixed with liquids to make the spraying agent) are usually abrasive
and can cause wear. When you use a powder-based chemical in your sprayer, make sure it is thoroughly
dissolved in the liquid solution. Thoroughly clean and flush the sprayer with water to extend the life of
the sprayers parts.
CLEANING
1) Always empty the sprayer and clean the 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 clean the tank.
• Do not use strong cleaning agents or abrasives.
• If you use a chemical agent to clean the tank follow the manufacturer’s recommendations for the
disposal of the waste water.
• Follow the chemical manufacturers instructions for clean up.
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.
7E
TROUBLE SHOOTING YOUR SPRAYER
Symptom Possible Reason Correction
Diffculty actuating the pumphandle 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. Piston Collar or piston cylinder Replace Piston/ Diaphragm 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
briefy. chamber. Reconnect the hose.
Upper valve plate damaged/worn/dirty Clean or replace upper valve plate
Upward pumping action is more diffcult 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
Piston cylinder intake clogged Clean piston cylinder intake
Leaks at Piston Cylinder Damaged/worn/Dirty Collar Replace Piston/ Diaphragm assembly
Damaged Piston Cylinder Replace Piston/ Diaphragm assembly
Damaged Piston Replace Piston/ Diaphragm assembly
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
DISASSEMBLING AND REPAIRING THE PISTON PUMP
1) Remove the cotter pin and pump handle. With the pump facing
towards you lay the unit on its back (Figure 1). Loosen the hose clamp
and remove the sprayer hose. Caution: There could be residual liquid in
the hose and pressure cylinder. Rotate the pump shaft in order to reach
two lever bolts(A). Using an allen wrench, remove the lever bolts.
2) Remove bolts clamping the the two halves of the piston/
diaphragm pump housing together (Figure 2).
Figure 2
Figure 4
Figure 3
Figure 1
A
8E
3) Pull the pump housing halves apart and inspect piston collar/
diaphragm for wear. Replace as needed (Figure 3).
4) Guide lever through skirt (Figure 4).
Figure 6
6) Re-assemble the two pump halves (fig.3). Re-tighten all pump
housing bolts. Re-assemble hose and lever bolts.
Figure 5
5) Align the “groove” in the skirt with the flat ledge on the
retaining ring. Align flat edge with hose connection.
Flat
Groove
Pump
Assembly
9E
DISASSEMBLING AND REPAIRING OR REPLACING 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 chamber.
4. Remove 2 bolts attaching the pivot lever to the pump shaft and remove piston assembly (fig. 2).
5. Remove the large clamp holding the pressure chamber and tank together (fig 1).
6. Rock the pressure chamber back and forth and push down to free it from the tank (fig 1).
7. Once freed the entire pump assembly can be removed by maneuvering it through the base frame
(fig 3a & 3b). Pump shaft may be removed to ease the disassembly of the pump.
8. 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 assembly into the tank (fig. 3b).
9. Reassemble backwards from step 7 thru 2, performing each step in reverse. Note: there is a notch/tab
combination in the pump assembly/tank to be used for alignment (fig. 4).
Figure 1 Figure 2 Figure 3a
Clamp
In-Tank
Filter
Figure 3b
Pressure
Chamber o-ring
Tank tab
Pump
Assembly
Notch
Figure 4
Indice
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