OPERATOR S MANUAL MARUYAMA BACKPACK SPRAYER M409. Maruyama U.S. Inc. Post Office Box 309 Auburn, WA voice fax

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1 MARUYAMA OPERATOR S MANUAL BACKPACK SPRAYER M0 Maruyama U.S. Inc. Post Office Box 0 Auburn, WA voice -- fax Premium Outdoor Power Equipment Extraordinary Completely read and understand this manual prior to using this product.

2 Maruyama is grateful to you for purchasing this product. Prior to operating the sprayer, please read this owner s manual to obtain the best results. TRIGGER VALVE COMPONENTS 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... 0 ENGLISH

3 TRIGGER VALVE COMPONENTS OPERATING INSTRUCTIONS In this manual you will find all the instructions you need to operate your sprayer properly. 0 Clamps () 0 Viton O ring 0 Brass circle stopped seal 0 Piston trigger lance spring 0 0 Piston trigger lance Trigger - lever TECHNICAL SPECIFICATIONS 0 0a Fastener hook Body valve Spare pipe for lance (0 inches) nozzle Tip nut O ring 0 () Body tip Tip filter Flat fan tip VP 0 F0 Tip cap Lance handle Model M0 Net weight: Tank Capacity: Tank Material: Working pressure Standard lance length: Standard hose length: Provided nozzle:, Lbs., Gallons Polyethylene 0 to 0 p.s.i., feet, feet Adjustable brass nozzle Flat fan nozzle 0 Lance filter 0 Lance handle seal (viton) 0 Adjustable brass nozzle 0 Piston lance assy (,,, ) 0 0 Lance body assy (,,,,,,,, 0,,,,,,, ) ENGLISH

4 ASSEMBLY INSTRUCTIONS BACK PACK SPRAYER COMPONENTS 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. To assemble spraying lance, press the trigger lever (nº ) and tighten the plastic tip nut (nº 0) to the bronze lance pipe. Lastly, release the lever. (Important: Never tighten tip nut without pressing on the trigger lever.) The correct operating position is when the top of the tank is on the same level as the operator neck. fig. fig. fig M0 ENGLISH

5 BACK PACK SPRAYER COMPONENTS SPRAYER CALIBRATION CHEMICAL MIXING PROCEDURE Fill cap Strainer Tank (. gallons) Strap Strap padding kit ( units) Buckle kit ( units) Plastic base Pin ( 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 () 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 a) Mark a field area of ft (square of. x. sq or sq ft x. ft) b) Fill the tank with clear water and apply over the marked area keeping a constant pumping and walking rhythm. c) Calculate the flow rate in gallons by hectare using the following formula: Q = Flow rate in gallons 00= ft correspond with hectare A = Applied area ( ft ) Q Vol. x 00 ft = A= ft d) If the flow rate is not in accordance with your needs, change to a larger or smaller nozzle according to the results.. ft. ft a) Fill bucket with. gallons of clear water and add the chemical. b) Shake well until the mixture looks homogeneous. c) Place this liquid inside the spray tank and fill desired amount of water. d) Spray mixture immediately after you have filled the tank. MAINTENANCE When you have finished using the sprayer, wash the tank well with clear water and some detergent if possible. Operate the sprayer with water to wash the pump and the trigger valve. Rinse it, dry it and store it in a clear place. IMPORTANT! Never store the sprayer with chemical remains. It can temporarily or permanently damage your equipment. ENGLISH

6 TROUBLESHOOTING GUIDE PRESSURE CHAMBER COMPONENTS BRASS CYLINDER COMPONENTS Place approximately 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. Cause The piston seal is worn out. Solution Change the piston seal Pressure Chamber (no valve box or seal) Chamber valve cap Valve Valve seal (viton) Double piston seal Valve box Brass cylinder valve cap Valve Valve seal (viton) Cylinder only Brass cylinder seal Brass cylinder nut When pumping and filling the chamber the liquid returns back through the admission and the chamber falls down quickly. Brass cylinder valve won t shut due to wear or dirt. Clean or change the cylinder valve. When pumping and filling the chamber and releasing the action lever; the chamber ascends. Chamber valve wear Clean or change the chamber valve. ENGLISH