Powersmart MB5040A Instruction Manual
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Powersmart MB5040A Instruction Manual

4400w frame inverter generator
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INSTRUCTION MANUAL
4400W FRAME INVERTER GENERATOR
Model # MB5040A
MB5040B
Have product questions or need technical support? Please scan the QR code
to enter our official website and contact us!
Website: www.powersmartusa.com
Toll free: 1-872-314-0005
Email: support@amerisuninc.com / support@powersmartusa.com
Mon-Fri 9-5 EST
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  • Page 1 INSTRUCTION MANUAL 4400W FRAME INVERTER GENERATOR Model # MB5040A MB5040B Have product questions or need technical support? Please scan the QR code to enter our official website and contact us! Website: www.powersmartusa.com Toll free: 1-872-314-0005 Mon-Fri 9-5 EST Website Email: support@amerisuninc.com / support@powersmartusa.com...

  • Page 3: Table Of Contents

    CONTENTS TECHNICAL DATA..................4 INTRODUCTION ..................... 5 SAFETY INFORMATION ................6 SYMBOLS AND MEANINGS .................7 KNOWING YOUR GENERATOR ..............12 GENERATOR PREPARATION ..............13 GENERATOR OPERATION ................. 16 MAINTENANCE .................... 21 TROUBLESHOOTING...................28 WIRING DIAGRAM ..................30 EXPLODED VIEW & PARTS LIST ..............31 WARRANTY ....................35...

  • Page 4: Technical Data

    TECHNICAL DATA 4400W Generator： Model#MB5040A MB5040B Engine type: 4 stroke, OHV, single cylinder with forced air-cooling system Start type: Recoil Phase: Single Starting wattage: 4400W Rated wattage: 3600W Rated voltage: 120V DC output voltage: Max AC Amperage: Frequency: 60Hz Displacement:...

  • Page 5: Introduction

    Every effort has been made to ensure the accuracy of the information in this manual. PowerSmart® reserves the right to change this product and specifications at any time without prior notice.

  • Page 6: Safety Information

    SAFETY INFORMATION The manufacturer cannot anticipate every possible circumstance that might involve a hazard. The warnings in this manual, and on tags and decals affixed to the unit are, therefore, not all inclusive. If using a procedure, work method or operating technique that the manufacturer does not specifically recommend, verify that it is safe for others.

  • Page 7: Symbols And Meanings

    SYMBOLS AND MEANINGS DANGER Using a generator indoors CAN KILL YOU IN MINUTES. Generator exhaust contains carbon monoxide. This is a poison you cannot see or smell. NEVER use inside a home or garage, EVEN IF doors and windows are open. Only use OUTSIDE and far away from windows, doors, and vents.
  • Page 8 • It is recommended to obtain parts and service from your local IASD to keep this unit in safe working order. • Do not operate unit on uneven surfaces, or in areas where it can be exposed to excessive moisture, dirt, dust, or corrosive vapors. WARNING Moving Parts.
  • Page 9 Exhaust and Location Hazards DANGER Asphyxiation. Running engines produce carbon monoxide, a colorless, odorless, poisonous gas. Carbon monoxide, if not avoided, will result in death or serious injury. DANGER The exhaust system must be properly maintained. Do not alter or modify the exhaust system as to render it unsafe or make it non-compliant with local codes and/or standards.
  • Page 10 Electrical Hazards DANGER Electrocution. Contact with bare wires, terminals, and connections while generator is running will result in death or serious injury. DANGER Electrocution. Water contact with a power source, if not avoided, will result in death or serious injury. •...
  • Page 11 Fire Hazards WARNING Accidental Start-up. Disconnect the negative battery cable, then the positive battery cable when working on unit. Failure to do so could result in death or serious injury. DANGER Do not overfill fuel tank. Fill to 1/2 in. of top of tank to allow for fuel expansion.

  • Page 12: Knowing Your Generator

    KNOWING YOUR GENERATOR Recoil Starter LED ALARM Grounding Lug AC RESET Air Filter VFT meter Oil Drain AC Breaker Oil Fill 20A Volt AC Sock Fuel Tank 30A Volt AC Sock Gas Cap PARALLEL OPERATION OUTLETS Fuel Gauge 12 Volt DC DC Breaker Muffler Air Filter...

  • Page 13: Generator Preparation

    GENERATOR PREPARATION Remove Contents From Carton Open carton completely by cutting each corner from top to bottom. Remove and verify carton contents prior to assembly. Carton contents should contain the following: Accessories Item Qty. Main Unit Owner’s Manual Spark Plug Tool Oil funnel Unpack the generator and all its parts, and compare against the list.
  • Page 14 NOTE: Some units have more than one oil fill location. It is only necessary to use one oil fill point. 5. Thread dipstick into oil filler neck. Oil level is checked with dipstick fully installed. 6. Remove dipstick and verify oil level is within safe operating range. Safe Operating Range 7.
  • Page 15 Adding Fuel Fuel requirements are as follows: • Clean, fresh, unleaded gasoline. • Minimum rating of 87 octane/87 AKI (91 RON). • Up to 10% ethanol (gasohol) is acceptable (where available; non-ethanol-premium fuel is recommended). • DO NOT use E85. •...

  • Page 16: Generator Operation

    GENERATOR OPERATION Operating Location • Only use OUTSIDE and place the generating set in a well-ventilated area. • Only operate the generating set on a flat, level surface and in a clean, dry operating environment. • Allow two feet clearance on all side of the generating set while operating it outdoors.
  • Page 17 IMPORTANT NOTE: Do not overload generator or individual panel receptacles. These outlets are overload protected with push-to-reset circuit breakers. If amperage ratting of any circuit breaker is exceeded, that breaker opens and electrical output to that receptacle is lost. Read Know Generator Limits carefully.
  • Page 18 Know Generator Limits Overloading a generator can result in damage to the generator and connected electrical devices. Observe the following to prevent overload: • Add up the total wattage of all electrical devices to be connected at one time. This total should NOT be greater than the generator's wattage capacity. •...
  • Page 19 Device Running Watts Device Running Watts *Air Conditioner (12,000 Btu) 1700 Hand Drill 250 to 1100 *Air Conditioner (24,000 Btu) 3800 Hedge Trimmer *Air Conditioner (40,000 Btu) 6000 Impact Wrench Battery Charger (20 Amp) Iron 1200 Belt Sander (3") 1000 *Jet Pump Chain Saw 1200...
  • Page 20 Generator Shut Down 1. Shut off all loads and unplug electrical loads from generator panel receptacles. 2. Let engine run at no-load for several minutes to stabilize internal temperatures of engine and generator. 3. Move ON/OFF switch to OFF. 4. Close fuel valve. NOTE: Under normal conditions, close fuel valve and allow generator to run carburetor bowl out of fuel.

  • Page 21: Maintenance

    Function indicator Low Oil Level Shutdown System The engine is equipped with a low oil level sensor that shuts down the engine automatically when the oil level drops below a specified level. The engine will not run until the oil has been filled to the proper level. If the engine shuts down and there is sufficient fuel, check engine oil level.
  • Page 22 At Each Use Check engine oil level Every 25 Hours Clean Air Filter** Every 100 Hours or Every Season* Change Oil ǂ Clean/Gap Spark Plug Every 200 Hours or Every Season Replace Air Filter Replace Spark Plug Check/Adjust Valve Clearance*** ǂ...
  • Page 23 • Use a soft bristle brush to loosen caked on dirt, oil, etc. • Use a vacuum to pick up loose dirt and debris. • Low pressure air (not to exceed 25 psi) may be used to blow away dirt. Inspect cooling air slots and openings on generator.
  • Page 24 4. Remove oil fill cap. 5. Remove oil drain plug and drain oil completely into a suitable container. 6. Install oil drain plug and tighten securely. 7. Slowly pour oil into oil fill opening until oil level is between L and H marks on dip-stick.
  • Page 25 Spark Plug Maintains To service spark plug: 1. Clean area around spark plug. 2. Remove and inspect spark plug. 3. Inspect electrode gap with wire feeler gauge and reset spark plug gap to Spark Plug 0.76 mm. NOTE: Replace spark plug if electrodes are pitted, burned or porcelain is cracked. Use ONLY recommended replacement plug.
  • Page 26 Prepare Fuel System for Storage Fuel stored over 30 days can go bad and damage fuel system components. Keep fuel fresh, use fuel stabilizer. If fuel stabilizer is added to fuel system, prepare and run engine for long term storage. Run engine for 10-15 minutes to circulate stabilizer throughout fuel system.
  • Page 27 When transporting: •Do not overfill the tank. •Do not operate the generating set while it is on vehicle. Take the generating set off the vehicle and use it in a well-ventilated place. Avoid a place exposed to direct sunlight when putting the generating set on a vehicle. If the generating set is left in an enclosed vehicle for many hours, high temperature inside the vehicle could cause fuel to vaporize resulting in a possible explosion.

  • Page 28: Troubleshooting

    TROUBLESHOOTING PROBLEM CAUSE CORRECTION 1. Circuit breaker OPEN. 1. Reset circuit breaker. Engine 2. Check and repair. 2. Poor connection or defective cord running, set. 3. Connect another device that is in AC output is 3. Connected device is bad. good condition.
  • Page 29 1. Reduce load (see Know Generator 1. Load is too high. Engine lacks Limits ). 2. Dirty air filter. power. 2. Clean or replace air filter. 3. Engine needs to be serviced. 3. Contact IASD. Engine surges 1. Choke is opened too soon. 1.

  • Page 30: Wiring Diagram

    WIRING DIAGRAM...

  • Page 31: Exploded View & Parts List

    EXPLODED VIEW & PARTS LIST...
  • Page 33 EXPLODED VIEW & PARTS LIST(ENGINE)

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Mb5040b

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