Firman H05753 Owner's Manual
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Firman H05753 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
H05753
Serial Number:
Purchase Date:
P/N:357745483 Rev:04
Rev Level:00

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  • Page 1 OWNER’S MANUAL DUAL FUEL GENERATOR MODEL NUMBER H05753 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 2: Table Of Contents

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

  • Page 3: 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 4: Safety Precautions

    SAFETY PRECAUTIONS • WARNING POISONOUS GAS HAZARD. • • • • English Page 02 Customer Service: 1-844-FIRMAN1...
  • Page 5 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 6 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 7 • 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 8 • 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 9: Unpacking The Generator

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

  • Page 10: 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 11: Battery Cable Connection

    Battery Cable Connection NOTE: The generator comes equiped with the positive(red) and negative(black) cables already attached to battery terminals. 1. Cut wire tie that is binding the black battery cables A and B. 2. Insert the male connector of cable A into female connector of cable B. English Page 09 Customer Service: 1-844-FIRMAN1...

  • Page 12: Controls And Features

    3- Fuel Cap Outlet Cover 4- Choke Lever(behind air filter box) Control Panel 5- Air Filter Handle 6- 439cc FIRMAN OHV Engine 14- LPG Hose Connector(Inlet) 7- Recoil Starter 15- Hose Holder 8- 10.0" Flat Free Wheel 16- LPG Hose with Regulator *We are always working to improve our products.

  • Page 13: Control Panel

    Control Panel NOTE: Total power drawn from all receptacles must not exceed the name plate rating. Fuel Selector Switch – Use to select and turn on gasoline or LPG fuel source. Fuel (gasoline) valve is closed when the switch is on “OFF” or “LPG”...
  • Page 14 120/240V, 30A Twist-Lock – (NEMA L14-30R) Maximum 30 Amp current maybe drawn from this 120/240 Volt receptacle. Outlet Cover - Protect the receptacles from dust and debris. LPG Hose Connector(Inlet) – Used to connect LPG hose to generator. English Page 12 Customer Service: 1-844-FIRMAN1...

  • Page 15: Specifications

    SPECIFICATIONS Model H05753 Starting Watts 7125(GAS OLINE )/7125(LPG) Running Watts 5700(GASOLINE)/5700(LPG) Rated AC Voltage 120/240V Rated Fequency 60Hz Phase Single Voltage Regulator Power Factor Total Harmonic Distortion(THD) Standard Alternator Type Brushed Engine FIRMAN Engine Type Single Cylinder, 4-Stroke OHV Air Cooled...
  • Page 16 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 17: 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 18 • Do not check for leaks with a lighted match or flame. • The LPG cylinder valve should be fully closed when the generator is not in use or is running with gasoline. • If you smell gas: close off the gas supply. Make sure there is no leak before using the generator.

  • Page 19: Operation At High Altitude

    3-Permanent Connection to a large Installation instructions are also available in the Propane supply tank: Technical Bulletin area of the FIRMAN internet site. In the instance that you would need to connect The part number and recommended minimum your generator to a large propane Supply tank,...

  • Page 20: 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 21: 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 22: 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 23 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 24: 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 25: 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 26: 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 27: 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 28 • 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 29: Maintenance And Storage

    MAINTENANCE AND STORAGE MAINTENANCE SCHEDULE Every Daily(Before Initial Every Every 100 hours ITEM NOTES operation) 25 hours 50 hours 250 hours (or annual) Check condition. Adjust gap √ Spark Plug and clean. Replace if necessary. √ Check oil level. Engine Oil √...

  • Page 30: 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 31: 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. (a) Remove the spark plug cap. equipped, and inspect for damage or carbon blockage.

  • Page 32: 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 33: Service And Storage

    4-FUEL STARVATION: Turn fuel selector switch SERVICE AND STORAGE to “GAS” position. Start and run the generator until it Infrequent Service stops from lack of gasoline. This will dry out all If the unit is used infrequently, difficult starting remaining gasoline in tank, fuel lines and carburetor. may result.
  • Page 34 Battery Charging & Maintenance The battery powers up the starter motor and the control module in this generator. This product is equipped with an automatic battery charging circuit. The battery will receive charging voltage when the engine is running. The battery will maintain a proper charge if the unit is used on a regular basis (about once every two weeks).

  • 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 H05753 PARTS DIAGRAM Page 33 English Customer Service: 1-844-FIRMAN1...
  • Page 37 439cc DUAL FUEL ENGINE PARTS DIAGRAM Page 34 English Customer Service: 1-844-FIRMAN1...
  • Page 38 H05753 PARTS LIST Qty. Qty. Description Description NO. Part Number NO. Part Number FIRMAN 439cc Dual Fuel Engine 357713552 357713572 Rubber Pad 357713553 Battery Rubber Cap B 357713501 357713554 Battery Holder Flange Bolt M6×8 336713528 336713593 Flange. Bolt M8×45 Generator Wind Shield...
  • Page 39 FIRMAN 439cc Dual Fuel Engine Parts List NO. Part Number Qty. NO. Part Number Qty. Description Description 380723518 Crankcase Comp. 380723515 Carburetor 357723501 Bolt,drain 357723554 Gskt., Air Cleaner 357723502 Washer,drain Bolt 357723555 Elbow, Air Cleaner 357723503 Oil Level Sensor 336723555...

  • 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.firmanpowerequipment.com warranty. We are FIRMAN POWER - And we are here for you. Other Exclusions Customer Service Desk - 1-844-347-6261(1-844-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 (8) Throughout the emissions warranty period defined in Subsection (b)(2), FIRMAN will maintain a supply of warranted parts sufficient to meet the expected demand for such parts. (9) Any replacement part may be used in the performance of any warranty maintenance or repairs and must be provided without charge to the owner.
  • Page 44 Firman Power Equipment Inc. 8716 West Ludlow Dr. Suite #6 Peoria, AZ 85381 www.firmanpowerequipment.com P/N:357745483 Rev 0 4...

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