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Jacto HP726 Owner's/operator's Manual

Manual is about: HighPressure BACKPACK ENGINE SPRAYER

Summary of HP726

  • Page 1

    Warning! 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 adj...

  • Page 2: Introduction

    1 introduction page the jacto hp726 is designed and built to deliver superior performance and reliability without compromise to quality, comfort, safety or durability. Driven by a high-performance shindaiwa engine that represents the leading edge of 2-cycle engine technology, delivering exceptionall...

  • Page 3: Attention Statements

    2 description throughout this manual are special statements surrounded by boxes and preceded by special symbols. Important! The operational procedures described in this manual are intended to help you get the most from your machine as well as to protect you and others from harm. These procedures are...

  • Page 4: Product Description

    3 description product description using the accompanying illustrations as a guide, familiarize yourself with your machine and its various compo- nents. Understanding your machine helps ensure top performance, long service life, and safer operation. See figure 1. Warning! Do not make unauthorized mod...

  • Page 5: Specifications

    4 specifications hp726 dry weight ............................................................................. 9.2 kg/20.2 lbs. Engine model ..................................................................................... Shindaiwa s230 engine type ................................................

  • Page 6: Assembly

    5 assembly 2. Mount the spray hose, trigger valve, spray wand and nozzles firmly to the discharge outlet on the pump. See figure 3. 3. Keep the trigger valve closed (released) until the spraying operation has started. See figure 4. Figure 2 figure 3 1. Assemble the sprayer hose, trigger assembly, wa...

  • Page 7: Spraying Operation

    6 spraying operation operation before each use of the hp726, always check the following: ! Make sure the chemical tank lid is installed and tightened firmly but do not over tighten. ! Make sure that the sprayer hose connections at the pump and the trigger valve are secure. ! Make sure that the trigg...

  • Page 8

    7 super angle (dual nozzles) super 25 (dual nozzles) liters per minute pump and nozzle performance chart 8 7 6 5 4 3 2 1 0 71 (5) 142 (10) 213 (15) 284 (20) 357 psi (25 kgf/cm 2 ) note: the pressure during spraying varies according to nozzle discharge rate. For most agri-chemical applications, the s...

  • Page 9: Mixing Fuel

    8 mixing fuel caution! Some types of gasoline contain alcohol as an oxygenate. Oxygenated gasoline may cause increased operating temperatures. Under certain conditions, alcohol-based gasoline may also reduce the lubricating qualities of some 2- cycle mixing oils. Never use any type of gasoline conta...

  • Page 10: Starting The Engine

    9 operation figure 8 2. Always make sure that the sprayer wand trigger is closed. (released) see figure 8. Figure 9 3. Rotate the sprayer pump pressure control valve to the "start:0" position. See figure 9. Starting the engine caution! Never start the engine without liquid in the chemical tank! Runn...

  • Page 11: Starting The Engine (Cont.)

    10 figure 12 7. Set the choke lever to the closed position. See figure 12. 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. See figure 13. Starting the engine (cont.) caution! Do not pull the reco...

  • Page 12: Stopping The Engine

    11 operation idle the engine briefly, then move the ignition toggle switch to the "off" position. See figure 15. The idle speed must be adjusted so the clutch will fully disengage at engine idle, causing the pump to stop oscillating. Check and adjust idle speed 1. Start the engine and allow it to wa...

  • Page 13

    12 the properly equipped operator (general) always wear a respirator while spraying chemicals. Wear close-fitting clothing such as long sleeve shirts and long pants to protect legs and arms. Gloves offer added protection and are strongly recom- mended. Do not wear clothing or jewelry that could get ...

  • Page 14

    13 work safely high pressure sprayers operate at very high speeds and pressure and can cause serious damage or injury if they are misused or abused. Never allow a person without training or instruction to operate this machine! Warning! Use good judgment always carefully read and follow the informati...

  • Page 15: Maintenance

    14 warning! Using non-standard replacement parts could invalidate your product warranty. Non-standard parts may not operate properly with your unit and may cause damage and lead to personal injury. Muffler this machine must never be operated with a faulty or missing spark arrester or muffler. Make s...

  • Page 16: 10-Hour Maintenance

    15 10-hour maintenance every 10 to 15 hours of operation: remove and clean the spark plug. Adjust the spark plug electrode gap to 0.024-inch (0.6 mm). If the plug must be replaced, use a ngk bmr6a. See figure 20. Before removing the spark plug, clean the area around the plug to prevent dirt and dust...

  • Page 17: 50-Hour Maintenance

    16 maintenance 50-hour maintenance every 50 hours of operation (more frequently in dusty or dirty conditions): use a hooked wire to extract the fuel filter from inside the fuel tank. See figure 22. Remove and replace the filter element if necessary. Before reinstalling the filter, inspect the condit...

  • Page 18: Muffler

    17 maintenance muffler hard starting or a gradual loss of performance can be caused by carbon deposits lodged in the muffler’s spark arrester screen. In such cases, performance can usually be restored by removing the arrester screen and giving it a thor- ough cleaning with a stiff bristle brush. If ...

  • Page 19: Long Term Storage

    18 caution! Gasoline stored in the carburetor for extended periods can cause hard starting, and could also lead to increased service and mainte- nance costs. 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...

  • Page 20

    19 troubleshooting hp726 troubleshooting guide (engine) engine does not start does the engine crank? Faulty recoil starter. Fluid in the crankcase. Internal damage. Consult with an authorized servicing dealer. No good compression? Loose spark plug. Excess wear on cylinder, piston, rings. Tighten and...

  • Page 21

    20 troubleshooting hp726 troubleshooting guide (engine continued) low power output is the engine overheating? Carburetor mixture is too lean. Improper fuel ratio. Fan, fan cover, cylinder fins dirty or damaged. Carbon deposits on the piston or in the muffler. Consult with an authorized servicing dea...

  • Page 22

    21 hp726 troubleshooting guide (engine continued) additional problems poor acceleration. Clogged air filter. Clogged fuel filter. Carburetor mixture too lean. Idle speed set too low. Clean the air filter. Replace the fuel filter. Consult with an autorized servicing dealer. Adjust: 3000 rpm ( 250) sy...

  • Page 23: Symptom

    22 troubleshooting guide (pump) application problems product not being pumped. No chemical in tank. Dirt in suction valve or discharge valve. Pump is worn out or damaged. Suction hose is clogged. Pump is cavitating. Pump speed is too low. Centrifugal clutch is slipping. Trigger valve is clogged or d...

  • Page 24: Jacto Inc.

    23 jacto inc. 11971 sw herman road, tualatin, or 97062 statement of limited warranty jacto manufactures and distributes superior quality products to promote the highest customer satisfaction level possible. Jacto warrants these products to the original purchaser as follows: warranty period: one (1) ...

  • Page 25: Deluxe Jacto Cap.

    24 warranty exclusions and limitations: jacto assumes no responsibility for damages, loss or injury resulting from: • normal wear and tear. • parts considered as normal wear and tear items, such as, but not limited to: belts, filters, hoses, nozzles, pistons, and pressure gauges. • hydraulic, lubric...

  • Page 26: Shin-Daiwa Kogyo Co., Ltd.

    25 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 ...

  • Page 27

    26 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. Carburetor internal components • jet...

  • Page 28

    27 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 p...

  • Page 29: Notes

    28 notes.

  • Page 30

    Jacto inc. P.O. Box 2390 tualatin, oregon 97062 telephone 503 885-8723 fax 503 691-4379 www.Jacto.Com 䊚 2000 jacto, inc. Part number hp726opman printed in u.S.A. Specifications subject to change without notice..