Maruyama M409 Manuale utente

OPERATOR’S MANUAL

BACKPACK SPRAYER

M409

MARUYAMA

Maruyama U.S. Inc.

Post Office Box 309

Auburn, WA 98071-0309

253-735-7368 voice

253-735-1416 fax

www.maruyama-us.com

Premium Outdoor Power Equipment Extraordinary

Completely read and understand this manual prior to using this product.

Maruyama is grateful to you for purchasing this product.

Prior to operating the sprayer, please read this owner’s

manualtoobtainthebestresults.

GENERAL INDEX

Technical specifications ............................................................

Assembly Instructions... ...........................................................

Back pack sprayer calibration ..................................................

Chemical mixing procedure ......................................................

Maintenance ............................................................................

Troubleshooting guide .............................................................

Pressure chamber components ..............................................

Brass cylinder components .....................................................

Back Pack Sprayer components .............................................

Trigger valve components .......................................................

TRIGGER VALVE COMPONENTS

ENGLISH 9

2 3 4 5

19 20

Description

Clamps (2)

Viton O´ring

Brass circle stopped seal

Piston trigger lance spring

Piston trigger lance

Trigger - lever

Fastener hook

Body valve

Spare pipe for lance (20 inches) nozzle

Tip nut

O´ring 5081 (2)

Body tip

Tip filter

Flat fan tip VP 02 F110

Tip cap

Lance handle

Lance filter

Lance handle seal (viton)

Adjustable brass nozzle

Piston lance assy ( 2, 3, 4, 5)

Lance body assy ( 2, 3, 4, 5,6, 7, 8,

9, 10, 11, 12, 13, 14, 15, 16, 17)

OPERATING INSTRUCTIONS

In this manual you will find all the instructions you need to operate

your sprayer properly.

TECHNICAL SPECIFICATIONS

Model M409

Net weight:

Tank Capacity:

Tank Material:

Working pressure

Standard lance length:

Standard hose length:

Provided nozzle:

8,75 Lbs.

4,2 Gallons

Polyethylene

30 to 90 p.s.i.

1,64 feet

3,77 feet

Adjustable brass nozzle

Flat fan nozzle

10a

Code

840661

840662

840663

840664

840665

840666

840667

840668

840669

840670

840600

840671

840672

840673

840674

840675

840676

840677

840692

840697

840698

TRIGGER VALVE COMPONENTS

ENGLISH

BACK PACK SPRAYER COMPONENTS

ASSEMBLY INSTRUCTIONS

You will find your Sprayer

assembled and ready to be

operated, less the hose,

which is separate from the

lance and the sprayer

pump. Connect the hose to

the outlet pump connector

and to the lance, and adjust

both ends with the two hose

clamps you will find inside

the strainer in the sprayer

cap.

The straps are padded and

provided with adjusting

buckles.

The correct operating

position is when the top of

thetankisonthesamelevel

astheoperatorneck.

To assemble spraying

lance, press the trigger

lever (nº 6) and tighten the

plastic tip nut (nº 10) to the

bronze lance pipe. Lastly,

release the lever.

(Important: Never tighten

tip nut without pressing on

thetriggerlever.)

ENGLISH

fig. 3

M409

830

fig. 2

fig. 1

Code

840727

840579

840580

840581

840582

840583

840584

840585

840586

840587

840588

840589

840590

840591

840592

840593

840594

840595

840660

840596

840597

840598

840599

840619

840620

840621

840622

840623

840624

840625

Description

Fill cap

Strainer

Tank (4.2 gallons)

Strap

Strap padding kit (2 units)

Buckle kit (2 units)

Plastic base

Pin (3 units)

Joining bolt to the chamber

Pressure chamber (assambly)

Chamber guide nut

Pressure chamber seal

Agitator assembly

Brass cylinder (assemblyt)

Brass cylinder gasket seal

Brass cylinder nut

Lever guide ring

Lever guide brass nut (2)

Lever

Lever guide pipe

Lever arm

Lever

Hole clamp

Hose

Trigger valve lance (flat fan tip)

Lance and lever arm support kit

Strap fastener

Backpack cap valve

Backpack cap seal

Lever arm ring

BACK PACK SPRAYER COMPONENTS

CHEMICAL MIXING

PROCEDURE

a) Fill bucket with 1.3 gallons of

clearwaterandaddthechemical.

b) Shake well until the mixture

lookshomogeneous.

c)Placethis liquid insidethespray

tank and fill desired amount of

water.

d)Spraymixtureimmediatelyafter

youhavefilledthetank.

MAINTENANCE

When you have finished using the

sprayer, wash the tank well with

clear water and some detergent if

possible.Operatethesprayerwith

water to wash the pump and the

trigger valve. Rinse it, dry it and

storeitinaclearplace.

IMPORTANT !

Never store the sprayer with

chemical remains. It can

temporarily or permanently

damageyourequipment.

ENGLISH

SPRAYER

CALIBRATION

a) Mark a field area of 328 ft (square

of32.8x32.8sqor328sqftx3.28ft)

b) Fill the tank with clear water and

apply over the marked area keeping

a constant pumping and walking

rhythm.

c)Calculatetheflowrateingallonsby

hectareusingthefollowingformula:

Q=Flowrateingallons

32800=ft correspondwith1hectare

A=Appliedarea(328ft )

Vol.x32800ft

A=328ft

d) If the flow rate is not in accordance

withyour needs, changeto a largeror

smaller nozzle according to the

results.

32.8 ft

TROUBLESHOOTING GUIDE

Place approximately 5 gallons of water in the tank. Operate the pump,

and watch inside the tank to identify the problem according to the

following table:

Problem

The liquid is coming out

from the upside of the brass

cylinder.

When pumping and filling

the chamber the liquid

returns back through the

admission and the chamber

fallsdownquickly.

When pumping and filling

the chamber and releasing

the action lever; the

chamberascends.

Cause

The piston seal is

wornout.

Brass cylinder valve

won’t shut due to

wearordirt.

Chambervalvewear

Solution

Change the piston

seal.

Clean or change the

cylindervalve.

Clean or change the

chambervalve.

BRASS CYLINDER

COMPONENTS

Code

840680

840681

840682

840683

840739

840685

Description

Pressure Chamber

(no valve box or seal)

Chamber valve cap

Valve

Valve seal (viton)

Double piston seal

Valve box

PRESSURE CHAMBER

COMPONENTS

ENGLISH

Code

840686

840682

840683

840689

840592

840593

Description

Brass cylinder valve

cap

Valve

Valve seal (viton)

Cylinder only

Brass cylinder seal

Brass cylinder nut

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