Jacto HP726 Owner's/Operator's Manual
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Jacto HP726 Owner's/Operator's Manual

Jacto HP726 Owner's/Operator's Manual

Highpressure backpack engine sprayer
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JACTO OWNER'S/OPERATORS MANUAL
HP726
BACKPACK ENGINE SPRAYER
WARNING!
Always wear the recommended
protective clothing and safety
equipment as recomended by the
chemical manufacturer when
spraying or handling chemicals
and when cleaning the sprayer. A
respirator, goggles, gloves, boots
and coveralls provide the
minimum protection.
WARNING!
To minimize the risk of injury to
yourself and others; Read and
follow this manual. In addition,
read and follow the chemical
manufacturer's instructions for
the products being applied.
Failure to do so could result in
serious injury!
This engine meets U.S. EPA PHASE 1 emission regulations for utility and lawn and garden equipment. This
engine is certified to operate on a 50:1 mixture consisting of unleaded gasoline and 2-cycle engine mixing
oil only. Please refer to this manual for all maintenance specifications and adjustments.
HighPressure

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  • Page 1 JACTO OWNER’S/OPERATORS MANUAL HP726 HighPressure BACKPACK ENGINE SPRAYER WARNING! Always wear the recommended protective clothing and safety equipment as recomended by the chemical manufacturer when spraying or handling chemicals and when cleaning the sprayer. A respirator, goggles, gloves, boots and coveralls provide the minimum protection.

  • Page 2: Table Of Contents

    Introduction Contents PAGE The Jacto HP726 is designed and built Attention Statements ......2 to deliver superior performance and reliability without compromise to Product Description ......3 quality, comfort, safety or durability. Specifications ........4 Driven by a high-performance Shindaiwa engine that represents the Basic Assembly ........

  • Page 3: Attention Statements

    Symbol are: that may be in force in your area. If you have questions regarding IMPORTANT! your HP726 Engine Sprayer or if you A statement preceded by the word do not understand something in this “IMPORTANT” is one that possesses manual, your Jacto dealer will gladly special significance.

  • Page 4: Product Description

    Product Description Tank Lid Chemical Tank Wand Storage Clip Engine Pump Pressure Control Fuel Tank Throttle Control Stop Switch Spray Nozzles Trigger Valve Wand Figure 1 Using the accompanying illustrations as a guide, familiarize yourself with WARNING! your machine and its various compo- Do not make unauthorized nents.

  • Page 5: Specifications

    Specifications HP726 Dry Weight ................9.2 kg/20.2 lbs. Engine Model ..................Shindaiwa S230 Engine Type ............2-cycle, vertical-cylinder, air-cooled Bore x Stroke ..............32 x 28 mm/1.26 x 1.10 in. Displacement ................. 22.5 cc/1.4 cu. in. Maximum Power Output ..........0.8 kW/1.1 HP @ 7500 rpm Fuel/Oil Ratio ......

  • Page 6: Basic Assembly

    . See figure 2. Figure 3 Figure 5 2. Mount the spray hose, trigger valve, 1. Place the HP726 Engine spayer on a spray wand and nozzles firmly to level surface. Unscrew the chemi- the discharge outlet on the pump.

  • Page 7: Spraying Operation

    IMPORTANT! WARNING! The engine and pump are connected by a centrifugal clutch. At engine idle Before each use of the HP726, the clutch is disengaged and the always check the following: pump is not operating. To reduce the ! Make sure the chemical tank...

  • Page 8: Figure

    NOTE: The pressure during spraying varies The HP726 is supplied with two sets of according to nozzle discharge rate. spraying nozzles, Super Angle (D-3) For most agri-chemical applications, and Super 25. The discharge rates are the spraying pressure variance will be...

  • Page 9: Mixing Fuel

    This engine is certified to operate condition. on a 50:1 mixture consisting of unleaded gasoline and 2-cycle 1. Place the HP726 engine sprayer on mixing oil only. Mix only enough a flat, level surface. fuel for your immediate needs! If fuel must be stored longer than 30 2.

  • Page 10: Starting The Engine

    Starting the Engine CAUTION! Never start the engine without liquid in the chemical tank! Running the engine without liquid in the chemical tank can cause severe sprayer pump damage. Ignition "ON" Figure 10 4. Set the toggle switch to the "ON" position.
  • Page 11 If the engine still fails to start, refer to the troubleshooting section of this manual. Figure 13 8. Hold the HP726 firmly with one hand. Slowly pull the recoil starter handle until resistance is felt, then pull quickly to start the engine.

  • Page 12: Stopping The Engine

    Stopping the Engine WARNING! The pump must NEVER oscillate at engine idle. WARNING! Fuel mixture has been preset at the factory and further adjust- Ignition "OFF" ment should be made only by your Shindaiwa authorized Figure 15 dealer. Idle the engine briefly, then move the ignition toggle switch to the "OFF"...

  • Page 13: General Safety Instructions

    The Properly Equipped Operator (general) Wear hearing protection devices and a broad-brimmed hat or helmet. Always wear eye protection such as Avoid long-term goggles or safety operation in very hot glasses. or very cold weather. Always wear a respirator while spraying chemicals.
  • Page 14 OperatorSafety (Safety Precautions) Work Safely WARNING! High pressure sprayers operate at Use Good Judgment very high speeds and pressure and ALWAYS carefully read and can cause serious damage or injury if follow the information provided they are misused or abused. Never with the chemical before proceed- allow a person without training or ing.

  • Page 15: Maintenance

    MUST BE PERFORMED BY A Spark Plug DEALER OR SERVICE CENTER AUTHORIZED BY JACTO INC. THE Keep the spark plug and wire connec- USE OF PARTS THAT ARE NOT tions tight and clean. EQUIVALENT IN PERFORMANCE...
  • Page 16 10-Hour Maintenance Counter- Clockwise to Remove and clean Loosen the element Figure 19 Every 10 hours of operation (more frequently in dusty or dirty condi- CAUTION! tions): Do not operate the machine if the Remove the air cleaner element from air cleaner or element is dam- the carburetor and clean it thoroughly aged, or if the element is wet or...
  • Page 17 22. Remove and replace the filter element if necessary. Before reinstalling the filter, inspect the condition of the fuel line. If damage or deterioration are noted, the HP726 unit should be removed from service until it can be inspected by a Jacto-trained service technician.

  • Page 18: Muffler

    If carbon deposits are severe or if no performance improvement is noted, your HP726 should be returned Figure 26 to your Jacto dealer for inspection. Remove the spark arrester retention screw using a Phillips screwdriver.

  • Page 19: Storage

    Short Term Storage Long Term Storage Whenever the machine will not be used for 30 days or longer, use the following procedures to prepare it for storage: ! Clean external parts thoroughly Tank and apply a light coating of oil to all Drain metal surfaces.
  • Page 20 HP726 Troubleshooting Guide (Engine) ENGINE DOES NOT START What To Check Possible Cause Remedy Faulty recoil starter. Does the engine Consult with an authorized Fluid in the crankcase. crank? servicing dealer. Internal damage. Loose spark plug. Tighten and re-test. Good...
  • Page 21 HP726 Troubleshooting Guide (Engine continued) LOW POWER OUTPUT What To Check Possible Cause Remedy Carburetor mixture is Consult with an authorized Is the engine too lean. servicing dealer. overheating? Improper fuel ratio. Re-fill with fresh fuel of the correct mixture (gasoline and Shindaiwa Premium 2-cycle Engine Oil, 50:1 ratio).
  • Page 22 HP726 Troubleshooting Guide (Engine continued) ADDITIONAL PROBLEMS Symptom Possible Cause Remedy Clogged air filter. Clean the air filter. Poor acceleration. Clogged fuel filter. Replace the fuel filter. Carburetor mixture Consult with an autorized too lean. servicing dealer. Idle speed set too low.

  • Page 23: Troubleshooting Guide

    Troubleshooting Guide (Pump) APPLICATION PROBLEMS Symptom Possible Cause Remedy No chemical in tank. Fill the chemical tank Product not being pumped. Dirt in suction valve Consult with an autorized or discharge valve. servicing dealer. Pump is worn out Consult with an authorized or damaged.
  • Page 24 One (1) year from the purchase date by the original owner. WARRANTY APPLICATION: Jacto warrants this product to be free from defects in materials and workmanship, under normal use and maintenance, subject to the periods, limitations, and exclusions listed below. Jacto will correct any defect in material or workmanship without charge for parts or labor at any authorized Jacto repair outlet during the covered warranty period.
  • Page 25 This warranty is limited to the terms stated herein. Jacto disclaims all liability for incidental or consequential damages. Some states do not allow the exclusion of incidental or consequential damages, so these limitations may not apply.
  • Page 26 Shin-Daiwa Kogyo Co., Ltd. Federal Emission Design And Defect Limited Warranty Utility And Lawn And Garden Engines Shin-Daiwa Kogyo Co., Ltd. warrants to the initial purchaser and each subsequent owner, that this utility equipment engine (herein engine) is designed, built and equipped to conform at the time of initial sale, to all appli- cable regulations of the U.S.
  • Page 27 PARTS COVERED Listed below are the parts covered by the Federal Emission Design and Defect Warranty. Some parts listed below may require scheduled maintenance and are warranted up to the first scheduled replacement of that part. The warranted parts include: 1.
  • Page 28 MAINTENANCE, REPLACEMENT OR REPAIR OF EMISSION CONTROL DEVICES AND SYSTEMS MAY BE PERFORMED BY ANY REPAIR ESTAB- LISHMENT OR INDIVIDUAL; HOWEVER, WARRANTY REPAIRS MUST BE PERFORMED BY A DEALER OR SERVICE CENTER AUTHORIZED BY SHIN-DAIWA KOGYO CO., LTD. THE USE OF PARTS THAT ARE NOT EQUIVALENT IN PERFORMANCE AND DURABILITY TO AUTHORIZED PARTS MAY IMPAIR THE EFFECTIVENESS OF THE EMISSION CONTROL SYSTEM AND MAY HAVE A BEARING ON THE OUTCOME OF A WAR-...
  • Page 29 Notes...
  • Page 30 Jacto Inc. P.O. Box 2390 Tualatin, Oregon 97062 Telephone 503 885-8723 FAX 503 691-4379 www.jacto.com 2000 Jacto, Inc. Part Number HP726OPMAN Printed in U.S.A. Specifications subject to change without notice.

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