Firman H08051 Owner's Manual
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Firman H08051 Owner's Manual

Dual fuel generator
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OWNER'S MANUAL
DUAL FUEL GENERATOR
IMPORTANT:
Record product information to reference when ordering parts or
obtaining warranty coverage.
DO NOT RETURN TO
STORE!
CALL US FIRST!
CUSTOMER HOTLINE
1-844-347-6261
FOR QUESTIONS OR SERVICE
INFORMATION
Read all safety precautions and instructions carefully
before operating equipment.
Ensure engine is stopped and level before performing
any maintenance or service.
MODEL NUMBER
H08051
Serial Number:
Purchase Date:
P/N:380745481 Rev:00
Rev Level:00

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  • Page 1 OWNER’S MANUAL DUAL FUEL GENERATOR MODEL NUMBER H08051 Rev Level:00 IMPORTANT: Read all safety precautions and instructions carefully before operating equipment. Ensure engine is stopped and level before performing any maintenance or service. Record product information to reference when ordering parts or obtaining warranty coverage.

  • Page 3: Table Of Contents

    Table of Contents Introduction ......1 Maintenance And Storage....27 Safety Precautions .

  • Page 4: Introduction

    Save these original instructions for future reference. This manual covers operation and maintenance of the FIRMAN generators. All information in this publication is based on the latest production information available at the time of approval for printing.

  • Page 5: Safety Precautions

    SAFETY PRECAUTIONS WARNING WARNING • WARNING POISONOUS GAS HAZARD. • • • • English Page 02 Customer Service: 1-844-FIRMAN1...
  • Page 6 CORRECT USAGE Example location to reduce risk of carbon monoxide poisoning • ONLY use outside and downwind, far away from windows, doors and vents. • Direct exhaust away from occupied spaces. INCORRECT USAGE Do not operate in any of the following locations: Near any door, window or vent Garage Basement...
  • Page 7 WHEN OPERATING EQUIPMENT WARNING • • DO NOT tip engine or equipment at angle which causes fuel or oil to spill. • DO NOT stop engine by moving choke • control to “Start” position. WHEN TRANSPORTING, MOVING • OR REPAIRING EQUIPMENT •...
  • Page 8 • When using generator for backup power, WARNING notify utility company. Unintentional sparking • Use a ground fault circuit interrupter (GFCI) could cause fire or in any damp or highly conductive area, electric shock resulting such as metal decking or steel work. in death or serious •...
  • Page 9 • NOTE: Gasoline is a skin irritant and needs to be cleaned Improper treatment of generator could damage up immediately if spilled on skin or clothes. • it and shorten its life. Gasoline has a distinctive odor, this will help •...

  • Page 10: Unpacking The Generator

    • If you smell gas: close off the gas supply. Spray 1. Axle pin ....... . .2 2.

  • Page 11: Assembly

    ASSEMBLY Install the Support Leg The generator requires some assembly prior to 1. Attach the rubber support (H) to the support usage. If problems arise when assembling the leg (G) with flange bolt (I) (M6X25) and flange generator, call 1-844-347-6261. lock nut(J) (M6).

  • Page 12: Battery Cable Connection

    Battery Cable Connection You will need to use 8mm box wrenches to connect the battery cables to battery. NOTE: The generator comes equiped with the positive red cable(red cable) already attached. 1. Verify the positive (+) battery cable (red boot) is securely tightened to the positive (+) battery post.

  • Page 13: Controls And Features

    4- Choke Lever(behind air filter box) Outlet Cover 5- Air Filter Control Panel 6- 439cc FIRMAN OHV Engine Handle 7- Recoil Starter 14- LPG Hose Connector(Inlet) *We are always working to improve our products. Therefore, the enclosed product may differ slightly from the image on this page.

  • Page 14: Control Panel

    Control Panel NOTE: Total power drawn from all receptacles must not exceed the name plate rating. Fuel Selector Switch – Used to select and turn on gasoline or LPG fuel source. Indicator Light When the fuel selector switch is turned to the “GAS”...
  • Page 15 Testing the GFCI: Test the GFCI outlet every Ground Terminal – Consult an electrician month as follows: for local grounding regulations. 1. Plug a test lamp into the receptacle. 120/240V, 50A – (NEMA 14-50R) 2. Start the generator, the test lamp should be on. Supplies electrical power for the operation of 3.

  • Page 16: Specifications

    SPECIFICATIONS Model H08051 Starting Watts 10000(GASOLINE)/9050(LPG) 8000(GAS OLINE )/7250(LPG) Running Watts Rated AC Voltage 120/240V Rated Fequency 60Hz Phase Single Voltage Regulator Power Factor Alternator Type Brushed Engine FIRMAN Engine Type Single Cylinder, 4-Stroke OHV Air Cooled Displacement 439cc Low Oil Shutdown...
  • Page 17 4.Using oil funnel, slowly pour contents of ADD ENGINE OIL provided oil bottle into oil fill opening to the "H" mark on dipstick. Be careful do not CAUTION overfill. Overfilling with oil could cause the engine to not start or hard starting. NOTE: Degrees Celsiusº(Outside) 5.Replace oil fill cap/dipstick and fully tighten.

  • Page 18: Add Fuel

    ADD FUEL 1.Gasoline Fuel must meet these requirements: • Clean, fresh, unleaded gasoline. • Use regular UNLEADED gasoline with the generator engine with a minimum 87 octane / 87 AKI (91 RON). For high altitude use, see "Operation at High Altitude".
  • Page 19 Attach the LPG regulator/hose assembly WARNING • (included) to the LPG hose connector (inlet) Device used for handling LPG must be installed on the control panel of the generator. Tighten and used in strict conformance with NFPA 58 the nut with 19 mm or adjustable wrench. (Liquefied Petroleum Gas Code) and NFPA 54 Remove the safety plug or cap from the (National Fuel Gas) and all other codes, regulations...

  • Page 20: Operation At High Altitude

    In the instance that you would need to connect Installation instructions are also available in the your generator to a large propane Supply tank, Technical Bulletin area of the FIRMAN internet site. larger than 20 or 30 lb DOT cylinder, it is The part number and recommended minimum...

  • Page 21: Grounding

    Connecting to a Building's Electrical System Grounding The National Electric Code requires your generator must be properly connected to an appropriate ground to help prevent electric shock. WARNING Failure to properly ground the generator can result in electric WARNING shock. Generator voltage could cause electrical shock or burn resulting in death or serious injury.

  • Page 22: Operation

    5. OPERATION • Generator Location WARNING Make sure you review each warning in order to • prevent fire hazard. Keep area clear of inflammables or other hazardous materials. Select a site that is dry, well ventilated and protected from the weather. •...

  • Page 23: Starting The Generator (Recoil Start-Gasoline)

    Starting the Generator (Recoil Start-Gasoline) 1. Before starting the generator, check for loose or missing parts and for any damage which may have occurred during shipment. 2. Check oil level and fuel(Gasoline). 7. Pull the starter cord slowly until resistance is felt and then pull rapidly.
  • Page 24 7. Move choke lever located on engine to “START” position. 3. Connect the regulator to both LPG cylinder and generator. 8. PULL TO-PRIME: Pull the starter cord 1-2 times. Pull slowly until resistance if felt and then pull rapidly. 1-2 Times NOTE: Do not place the LPG cylinder in the path of muffler outlet.

  • Page 25: Starting The Generator (Electric Start-Gasoline)

    THE FUEL SELECTOR SWITCH IS TURNED TO THE “OFF” 4. Turn the fuel selector switch to “GAS” position. POSITION AND THEN TURNED BACK TO THE “LPG” POSITION. See Indicator light-Battery power Saving Mode section for more information. WARNING NOTE: When the fuel selector switch is turned to the “GAS”...

  • Page 26: Starting The Generator (Electric Start-Lpg)

    NOTE: When the fuel selector switch is turned 8. Move the choke lever to the “RUN” position. to the “LPG” position, the indicator light will become RED up to 4 minutes(before goes off). Starting the engine successfully during these 4 minutes will turn the indicator light GREEN. 6.

  • Page 27: Connecting Electrical Loads

    working on nearby power lines. If you plan to run a portable electric generator during an outage, please notify your electric utility company immediately and remember to plug your appliances directly into the generator. Do not plug the generator into any electric outlet in your home. Doing so could create a connection to the utility 10.

  • Page 28: Indicator Light - Battery Power Saving Mode

    1.DO NOT try to restart the engine. If the engine will not be used for a period of two 2.Contact an Authorized FIRMAN Service Dealer. weeks or longer, please see the Storage section 3.DO NOT operate engine until oil level is for proper engine and fuel storage.

  • Page 29: English

    • NOTE: The LPG cylinder can be temporarily warmed by pouring warm water over the top of the Observing frost on LPG cylinders and regulators cylinder. is common during operation and normally is not an indication of a problem. As LPG vaporizes and travels from the tank to the generator engine it expands.

  • Page 30: Maintenance And Storage

    MAINTENANCE AND STORAGE MAINTENANCE SCHEDULE Every Daily(Before Initial Every 100 hours ITEM NOTES operation) 25 hours 50 hours (or annual) Check condition. Adjust gap √ Spark Plug and clean. Replace if necessary. √ Check oil level. Engine Oil √ √ Replace.

  • Page 31: Engine Maintenance

    • Use fresh and high quality lubricating oil to the ENGINE MAINTENANCE specified quantity. If contaminated or deteriorated oil is used or To prevent accidental starting, remove and the quantity of the engine oil is not sufficient, ground spark plug wire before performing any the engine damage will result and its life will be service.

  • Page 32: Spark Plug Maintenance

    Inspect Muffler and Spark Arrester Spark Plug Maintenance Inspect the muffler for cracks, corrosion, or Changing the spark plug will help your engine other damage. Remove the spark arrester, if to start easier and run better. equipped, and inspect for damage or carbon (a) Remove the spark plug cap.

  • Page 33: Generator Maintenance

    Battery Replacement A(M6) Flange Spark arrester 1. Remove the spark plug wire from spark plug. Screw screen 2. Remove the nut and bolt from the negative(-) and positive(+) posts. 3. Carefully remove the carbon deposits from 3. Loosen and remove the screw A on the battery the spark arrester screen with a wire brush.

  • Page 34: Service And Storage

    SERVICE AND STORAGE NEVER USE WATER TO CLEAN GENERATOR. Pull starter handle until resistance is felt, leaving Infrequent Service handle in that position. If the unit is used infrequently, difficult starting Store generator in a well ventilated, low humidity may result. To eliminate hard starting, follow area.

  • Page 35: Trouble Shooting

    TROUBLE SHOOTING Problem Cause Correction 1. Circuit breaker is open. 1. Reset circuit breaker. 2. Fault in generator. 2. Contact authorized service facility. Engine is running, but no 3. Poor connection or defective cord 3. Check and repair. AC output is available. set.

  • Page 36: Parts Diagram And Parts List

    PARTS DIAGRAM AND PART LIST H08051 PARTS DIAGRAM Page 33 English Customer Service: 1-844-FIRMAN1...

  • Page 37: Engine Parts Diagram

    439cc DUAL FUEL ENGINE PARTS DIAGRAM English Page 34 Customer Service: 1-844-FIRMAN1...
  • Page 38 H08051 PARTS LIST NO. Part Number Description NO. Part Number Description Qty. Qty. 336713800 FIRMAN 208cc Dual Fuel Engine 336713563 Isolator 2 336713501 Rubber Cap 2 336713608 Battery Holder 336713502 Rubber Cap1 336713578 Nut M5 336713604 Rotor Assy 357713569 Screw&washer Assy M5×10...
  • Page 39 FIRMAN 439cc Dual Fuel Engine Parts List NO. Part Number Qty. NO. Part Number Qty. Description Description 336723500 Crankcase Comp. 336723558 Clapboard 336723501 Locating Pins 336723559 Mounting Bolt, Air Cleaner 336723502 Oil Level Sensor 336723560 Element, Air Cleaner 336723503 Flg. Bolt M6×12...

  • Page 40: Parts List

    1. Model No. ,Rev. Level and Serial No. and all of Purchase specifications shown on the Model No./Serial Contact the FIRMAN Service Center and FIRMAN No. plate. will troubleshoot any issue via phone or e-mail. 2. Parts number or numbers as shown in the If the problem is not corrected by this method, Parts List section.
  • Page 41 Peoria, AZ 85381 Normal maintenance is not covered by this www.firmangenerators.com warranty. We are FIRMAN POWER - And we are here for you. Other Exclusions Customer Service Desk - 1-844-347-6261(844-FIRMAN1) This warranty excludes: 6am PST(9am EST) until 8pm EST(5pm PST) –...
  • Page 42 If any such part fails during the period of warranty coverage, the part will be repaired or replaced by FIRMAN at no charge to the owner. Any such part repaired or replaced under the warranty will be warranted for the remaining warranty period.
  • Page 43 This Emission Control Systems Warranty shall not cover any of the following: (a) Consequential damages such as loss of time, inconvenience, loss of use of the engine or equipment, etc. (b) Diagnosis and inspection fees that do not result in eligible warranty service being performed. FIRMAN POWER EQUIPMENT INC. firmangenerators@sumec-na.com www.firmangenerators.com...
  • Page 44 Firman Power Equipment Inc. 14131 N Rio Vista Blvd Suite 9 Peoria, AZ 85381 www.firmangenerators.com P/N:380745481 Rev 0 0...

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