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Voltmaster VI770 User Manual

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Model VI770
Digital Inverter Generator
User's Manual
January 2015

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Summary of Contents for Voltmaster VI770

  • Page 1 Model VI770 Digital Inverter Generator User’s Manual January 2015...
  • Page 2 PREFACE Thank you for purchasing a Voltmaster® inverter generator. This manual covers operation and maintenance of the VI770 generator. All information in this publication is based on the latest product information available at the time of approval for printing. We reserve the right to make changes at any time without notice and without incurring any obligation.

  • Page 3: Table Of Contents

    CONTENTS 1. Safety Instructions 2. Safety Label Locations 3. Component Indentificaction 4. Pre-operation Check 5. Starting the Engine 6. Generator Use 7. Stopping the Engine 8. Maintenance 9. Transporting/Storage 10. Troubleshooting 11. Specifications 12. Electric diagram...

  • Page 4: Safety Instructions

    1. SAFETY INSTRUCTIONS Operate carefully to ensure safety. WARNING WARNING Our generators are designed to give safe and depend-able service if operated according to instructions. Read and understand the Owner's Manual before operating the generator. Failure to do so could result in personal injury or equipment damage.
  • Page 5 WARNING Connections for standby power to a building's electrical system must be made by a qualified electrician and must comply with all applicable laws and electrical codes. Improper connections can allow electrical current from the generator to back feed into the utility lines. Such back feed may electrocute utility company workers or others who contact the lines during a power outage, and when utility power is restored, the generator may explode, burn, or cause fires in the building's electrical system.

  • Page 6: Safety Label Locations

    2. SAFETY LABEL LOCATIONS These labels warn you of potential hazards that can cause serious injury. Read the labels and safety notes and precautions described in this manual carefully. If a label comes off or becomes hard to read, contact your dealer for a replacement.

  • Page 7: Component Identification

    3. COMPONENT IDENTIFICATION Fuel cap lever Oil filler cap Chock lever Maintenance cover Control panel Starter grip Engine switch Spark plug maintenance cover Muffler...
  • Page 8 Control panel Output indicator light Overload indicator light Smart switch Low oil alarm indicator light AC receptacle Ground terminal SMART throttle: Engine speed is kept at idle automatically when the electrical appliance is disconnected and it returns to the proper speed to power of the electrical load when electrical appliance is connected.

  • Page 9: Pre-Operation Check

    4. PRE-OPERATION CHECK Be sure to check the generator on a level surface with the engine stopped. 1. Check the engine oil level. CAUTION Using nondetergent oil or 2-stroke engine oil could shorten the engine's service life. Use a high-detergent, premium quality 4-stroke engine oil, certified to meet or exceed U.S.
  • Page 10 Upper lever Upper limit Oil rule Lower limit Oil filler hole 2. Check the fuel level. Use automotive gasoline (Unleaded or low-leaded is preferred to minimize combustion chamber deposits). If the fuel level is low, refuel the fuel tank until the level as specified. Never use an oil/gasoline mixture or dirty gasoline.
  • Page 11 Gasoline containing alcohol If you decide to use a generator containing alcohol (gasohol), be sure it's octane rating is at least as high as that recommended by us. There are two types of gasohol: one containing ethanol, and the other containing methanol. Do not use gasohol that contains more than 10% ethanol.

  • Page 12: Starting The Engine

    5. STARTING THE ENGINE CAUTION Before starting the engine, disconnect the load from the DC terminals. When starting the generator after adding fuel for the first time or after long term storage, or after running out of fuel, turn the fuel valve lever to the '' ON'' position, then wait for 10 to 20 seconds before starting the engine.
  • Page 13 3.Move the choke lever to the START position. Note: Do not use the choke when the engine is warm or the air temperature is high. Choke lever 4. Pull the starter grip until resistance is felt, then pull the starter grip briskly toward the arrow as shown below.
  • Page 14 5. Move the choke lever to the RUN position after the engine warms up. Choke lever CAUTION If the engine stops and will not restart, check the engine oil level before troubleshooting in other areas. High altitude operation At high altitude, the standard carburetor air-fuel mixture will be excessively rich. Performance will decrease, and fuel consumption will increase.

  • Page 15: Generator Use

    6. GENERATOR USE WARNING To prevent electrical shock from faulty appliances, the generator should be grounded. Connect a length of heavy wire between the generator's ground terminal and an external ground source. Connections for standby power to a building's electrical system must be made by a qualified electrician and must comply with all applicable laws and electrical codes.
  • Page 16 AC applications 1.Start the engine and make sure the output indicator light (green) comes on. 2.Confirm that the appliance to be used is switched off, and plug in the appliance. Smart switch Output indicator light(green) Plug Overload indicator light(red) CAUTION Be sure that all appliances are in good working order before connecting them to the generator.
  • Page 17 CAUTION Before connecting an appliance to the generator, check that it is in good order, and that its electrical rating does not exceed that of the generator. Then connect the power cord of the appliance, and start the engine. CAUTION Indicator lights (both red and green) may come ON during generator starting.
  • Page 18 4. Switch on the equipment to be used. In case of overload operation or when trouble occurs for the equipment being used, the output indicator light(green) will go out, the overload indicator light(red) will light continuously, and no power will be put out. At this time, the engine will not stop, so that the engine must be stopped by setting the respective engine switch to STOP.

  • Page 19: Stopping The Engine

    7. STOPPING THE ENGINE To stop the engine in an emergency, turn the engine switch to the OFF position. IN NORMAL USE: 1. Switch off the connected equipment and pull the inserted plug. Plug 2 .Turn the engine switch to the OFF position. OFF~ Engine switch...
  • Page 20 3.Turn the cap lever fully counterclockwise to the "OFF"position Fuel cap lever CAUTION Be sure the fuel cap lever, choke and the engine switch are "OFF" when stopping, transporting and/or storing the generator.

  • Page 21: Maintenance

    8. MAINTENANCE The purpose of the maintenance and adjustment schedule is to keep the generator in the best operating condition. WARNING Shut off the engine before performing any maintena-nce. If the engine must be run, make sure the area is well ventilated. The exhaust contains poisonous carbon monoxide gas.
  • Page 22 1.CHANGING OIL Drain the oil while the engine is still warm to assure rapid and complete draining. CAUTION Confirm if engine lever and ventilation lever of oiling port are turned to the Off side before the oil drainage. 1. Loosen the cover screw and remove the left side maintenance cover. 2.
  • Page 23 2. AIR CLEANER SERVICE A dirty air cleaner will restrict air flow to the carburetor. To prevent carburetor malfunction, service the air cleaner regularly. Service more frequently when operating the generator in extremely dusty areas. WARNING Do not use gasoline or low flash point solvents for cleaning. They are flammable and explosive under certain conditions.
  • Page 24 3. SPARK PLUG SERVICE RECOMMENTED SPARK PLUG: UR5 To ensure proper engine operation, the spark plug must be properly gapped and free of deposits. (1). Remove the spark plug maintenance cover. Spark plug maintenance cover (2). Remove the spark plug cap. (3).
  • Page 25 (5). Visually inspect the spark plug. Discard it if the insulator is cracked or chipped. Clean the spark plug with a wire brush if it is to be reused. (6). Measure the plug gap with a feeler gauge. The gap should be 0.6-0.7mm(0.024-0.028in). Correct as necessary by carefully bending the side electrode.
  • Page 26 4. SPARK ARRESTER MAINTENANCE WARNING If the generator has been running, the muffler will be very hot. Allow it to cool before proceeding. The spark arrester must be serviced every 100 hours to maintain its efficiency. (1). Remove the four M5 screws, and remove the muffler protector. Muffler protector M5 screw (2).
  • Page 27 (3). 3.Use a brush to remove carbon deposits from the spark arrester screen. Spark arrester (4). Check the muffler gasket; replace if damaged. Reinstall the muffler gasket, the spark arrester, the muffler and the muffler protector in the reverse order of removal.

  • Page 28: Transporting/Storage

    9. TRANSPORTINT/STORAGE To prevent fuel spillage when transporting or during temporary storage, the genera-tor should be secured upright in its normal operating position, with the engine switch OFF. Turn the cap lever fully counterclockwise to the "OFF" position. WARNING When transporting the generator: Do not overfill the tank (there should be no fuel in the filler neck) Do not operate the generator while it is on a vehicle.
  • Page 29 A. Drain all gasoline from the fuel tank into an approved gasoline container. B. Turn the engine switch ON, and loosen the carburetor drain screw and drain the gasoline from the carburetor into a suitable container. C. With the drain screw loosened remove the spark plug cap, and pull the starter grip 3 to 4 times to drain the gasoline from the fuel pump.

  • Page 30: Troubleshooting

    TROUBLESHOOTING When the engine will not start: Is there fuel in the tank? Refill the fuel tank. Turn the engine switch on. Is the engine switch on? Add the recommended oil. Is there enough oil in the engine? Still no Take the generator to Replace the Is there a spark from...
  • Page 31 Appliance does not operate: Is the output indicator light ON? Take the generator to an Is the overload indicator light ON? authorized dealer. Check the electrical appli- Take the generator to an ance or equipment for any authorized dealer. defects. Replace the electrical appliance or equipment Take the electrical appli-...

  • Page 32: Specifications

    SPECIFICATIONS VI770 Model Rated frequency (Hz) Rated voltage (V) Rated current (A) 3.04 5.82 2.92 Rated rotation speed [r/min] 6000 Rated output (kVA) 0.70 Max. output (kVA) 0.77 Engine Model Type KG140 Single cylinder, 4 stroke, air-cooled, vertical, OHV Type Displacement (BorexStroke) 37.68ml (40 30mm)

  • Page 33: Electric Diagram

    ELECTRIC DIAGRAM -30- -30-...
  • Page 34 Voltmaster is a Wanco brand. Voltmaster, Wanco, and the Voltmaster and Wanco logos are registered trademarks of Wanco Inc. All other trademarks are property of their respective owners. WANCO INC. 5870 Tennyson Street Arvada, Colorado 80003 800-730-3927 303-427-5700 303-427-5725 fax www.voltmaster.com...

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