ITEM # GEN3500DFI Q 3500 Surge Watts / 3000 Running Watts DUAL FUEL INVERTOR GENERATOR INSTRUCTION MANUAL READ ALL INSTRUCTIONS AND WARNINGS BEFORE USING THIS PRODUCT. This manual provides important information on proper operation & maintenance. Every effort has been made to ensure the accuracy of this manual. These instructions are not meant to cover every possible condition and situation that may occur. We reserve the right to change this product at any time without prior notice.
GEN3500DFI Portable Dual Fuel Invertor Generator FEATURES: 3500 Surge Watts / 3000 Running Watts* 4-Stroke OHV Engine 212cc Recoil Start 7.0 HP Dual Fuel Engine (Propane Tank Not Included) • 1 - 12V D/C Outlet • 2 - 120V A/C Outlets • 1 - 120V RV Outlet • Parallel Ports (cable sold separately) • Engine Run Time: 9 Hours @ 50% Load Gasoline Fuel • Engine Run Time: 10 hours @ 50% Load on 20 lbs of LPG Fuel • Low Oil Shutdown • EPA Approved • Noise Level: 70dB @ 0% Load • Oil Capacity: 18.
TABLE OF CONTENTS RECOGNIZE SAFETY SYMBOLS, WORDS AND LABELS...............................................................................................4 PACKAGE CONTENTS PACKAGE CONTENTS ...........................................................................................................................................9 COMPONENTS .....................................................................................................................................................
RECOGNIZE SAFETY SYMBOLS, WORDS AND LABELS What You Need to Know About Safety Instructions Warning and Important Safety Instructions appearing in this manual are not meant to cover all possible conditions and situations that may occur. Common sense, caution and care must be exercised when operating or cleaning tools and equipment. Always contact your dealer, distributor, service agent or manufacturer about problems or conditions you do not understand. This is the safety alert symbol.
Notice Regarding Emissions: Engines certified to comply with U.S. EPA emission regulations for SORE (Small Off Road Equipment) are certified to operate on regular unleaded gasoline and may include the following emission control systems: Three-Way Catalyst (TWC) (if equipped), and Engine Modifications (EM). Legal Requirements: Federal and/or State Occupational Safety and Health Administration (OSHA) regulations, local codes, and/or ordinances may apply to the intended use of this generator.
Powerful Voltage: This generator produces powerful voltage, which can result in electrocution. • ALWAYS ground this generator before using it. (See “Ground the Generator” section in this manual). • Only electrical devices should be plugged into this generator, either directly or with an extension cord. NEVER connect a building electrical system to this generator without a qualified electrician. Doing so voids your warranty.
Item # GEN3500DFI Portable Dual Fuel Invertor Generator 7
In addition to the previously described safety information, familiarize yourself with all safety and hazard placards on this generator.
PACKAGE CONTENTS The following items are supplied with this Generator. Verify that all items are included. STOP! If there are missing items, call 1-866-460-9436, Monday - Friday, 8 AM - 4 PM Central Time for customer service.
GENERATOR COMPONENTS 1 Observe the locations and functions of the various components and controls of this generator.
PREPARING THE GENERATOR FOR USE Using this Generator for the First-Time STOP! The following section describes the required steps for preparing this generator for the first use. Failure to correctly perform these steps can damage this generator and/or shorten its life. If still unsure about how to perform any of these steps after reading this section, call 1-866-460-9436 Monday - Friday, 8 AM - 4 PM Central Time for customer service.
Step 2 - Add Gasoline or Connect Propane Tank Gasoline and gasoline fumes are highly flammable and explosive. Handling fuel can result in serious injury or burns. • Do not fill the fuel tank near a heat, sparks or an open flame. Keep gasoline away from appliance pilot lights, barbecues, electric appliances, power tools, etc. • Do not overfill the fuel tank. Always check for fuel spills and immediately wipe them up. Spilled fuel is a fire hazard and causes environmental damage.
Step 3 - Ground the Generator Failure to properly ground this generator can result in electrocution. Ground this generator by tightening the grounding nut against a grounding wire as illustrated in Figure 3. A No. 12 AWG (American Wire Gauge) stranded copper wire is generally an acceptable grounding wire. The other end of this grounding wire should be connected to a copper or brass grounding rod that is driven into the earth. Grounding codes can vary by location.
Step 2 - Verify Gas Level If Using Gasoline Fuel Before starting this generator, verify that there is sufficient gasoline in the fuel tank. If necessary, add fresh unleaded gasoline with an octane rating of 87 or higher according to “Step 2 - Add Gasoline” of the “Using this Generator for the First Time” section of this manual. Fuel Tank Capacity (gallons) Fuel Type 3.2 Fresh, Unleaded Gasoline Octane Rating 87 or Higher Gasoline and gasoline fumes are highly flammable and explosive.
STARTING THE GENERATOR STOP! Before starting this generator, confirm that all the steps in the section titled, “Preparing the Generator for Use,” of this manual have been correctly completed. If unsure about how to perform any of these steps, call 1-866-460-9436, Monday - Friday, 8 AM - 4 PM Central Time for customer service. Disconnect all electrical loads from this generator before attempting to start. To start this generator: 1. Confirm that there are no electrical devices connected to this generator.
USING THE GENERATOR • USE THIS GENERATOR ONLY OUTDOORS IN NON-CONFINED AREAS. DO NOT SECURE THE GENERATOR WITH A CHAIN OR ROPE, AS THIS WILL MAKE IT DIFFICULT TO MOVE IN AN EMERGENCY. • Keep at least several feet of clearance on all sides to allow proper ventilation for this generator. After the engine has been running for several minutes, electrical devices may be connected to this generator. AC Usage Electrical devices running on AC current may be connected according to their wattage requirements.
Even though this generator has an overall rated wattage of 3500, do not attempt to draw more than 3000 Watts from the 120 Volt outlet. Draws higher than 3000 Watts will damage this generator and void the warranty. NOTE: While this generator is running, power is available from either the standard 120 Volt outlet or the 12 Volt DC outlet. Both 120 Volts and 12 Volts can be simultaneously drawn from this generator.
AC PARALLEL TERMINALS Located just above the RV Outlet, the generator’s Parallel Outlets enable a user to run two GEN3500DFI generator’s simultaneously. This operation requires special cables (sold separately). The parallel port terminals are used with a parallel kit (sold separately). It will allow two generators to be linked to increase output. The black and white wire connections are non-polarized and can be inserted into either the left or right ports.
SOME NOTES ABOUT POWER CORDS Long or thin cords can require more wattage from a generator to power an electrical device. Figure 6 shows the recommended cords according to the power requirement of the electrical device. When using cords that exceed these specifications, allow for the electrical device to have a slightly higher rated wattage requirement. Device Requirements Amps Watts (120V) 2.5 300 5 600 7.
STOPPING THE GENERATOR To stop this generator: 1. Turn off all connected electrical devices and then unplug them. 2. Allow this generator to run for several more minutes with no electrical devices connected to help stabilize the temperature of this generator. 3. If using gasoline, turn the fuel valve to the “OFF” position. 4. Set the engine power switch to the “OFF” position. 5. If using Propane, turn the propane tank fuel valve to the “off” position, then turn off the engine power switch.
Checking the Oil Level It is important to check the oil level in the engine crankcase before each use to ensure that there is a sufficient quantity. To check the oil level: 1. Verify that this generator is shut down and on a level surface. 2. Unscrew the oil filler/dipstick cap from the engine. 3. With a dry cloth, wipe the oil off of the dipstick that is located on the inside of the cap. 4. Insert the dipstick as if replacing the cap and then remove again. There should be oil on the dipstick.
Air Filter Maintenance Routine maintenance of the air filter helps maintain proper airflow to the carburetor. Occasionally verify that the air filter is free of excessive dirt. The air filter will require more frequent cleaning when operating this generator in extremely dusty areas. To clean the air filter, remove the foam filter element from the generator and wash it in warm water and household dish detergent. Thoroughly rinse and dry.
STORAGE/TRANSPORT PROCEDURES Do not store gasoline for more than 3 months. Never place any type of storage cover on this generator while it is still hot. When transporting or storing this generator for extended time: • Allow generator to fully cool before moving it. A hot engine and exhaust system can burn you and ignite some materials. • Empty the fuel tank. (See “Emptying the Fuel Tank” in the “Maintenance/Care” section.) • Turn the fuel valve to the “off” position. • Disconnect the spark plug.
TROUBLESHOOTING IMPORTANT: If trouble persists, call our customer help line at 1-866-460-9436, Monday - Friday, 8 AM - 4 PM Central Time. Symptom Engine will not start. Cause Engine switch is set to "off." Fuel valve is turned to "closed." Choke is set to “Open/Run”. Engine is out of gasoline. Engine is filled with contaminated and/or old gasoline. Spark plug is dirty. Spark plug boot is cracked. Spark plug is broken. Oil is low. Engine will not start. Spark plugs not sparking. Engine will not start.
Item # GEN3500DFI Portable Dual Fuel Invertor Generator 25
PARTS DIAGRAM Item # GEN3500DFI Portable Dual Fuel Invertor Generator 26
PARTS DIAGRAM Item # GEN3500DFI Portable Dual Fuel Invertor Generator 27
PARTS DIAGRAM Valve Assembly Item # GEN3500DFI Portable Dual Fuel Invertor Generator 28
PARTS DIAGRAM Item # GEN3500DFI Portable Dual Fuel Invertor Generator 29
PARTS LIST Item # GEN3500DFI Portable Dual Fuel Invertor Generator 30
EMISSION CONTROL SYSTEM WARRANTY BUFFALO CORPORATION Your Warranty Rights and Obligations: The California Air Resources Board, U.S. EPA and Buffalo Corp are pleased to explain the Emission Control System Warranty on your 2018 model year outdoor power equipment engine. California In California, new spark-ignited small off-road equipment engines must be designed, built and equipped to meet the State’s stringent anti-smog standards. Other States, U.S.
for the period of time before the first scheduled replacement date for that part. If the part fails before the first scheduled replacement, the part will be repaired or replaced by Buffalo Corp. according to the Subject (4) below. Any such part repaired or replaced under warranty will be warranted for the remainder of the period prior to the first scheduled replacement point for the part.