GEN4000 S 4000 Surge Watts / 3500 Running Watts PORTABLE GASOLINE 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.
GEN4000 Portable Gasoline Generator FEATURES: 4000 Surge Watts / 3500 Running Watts 4-Stroke OHV Engine 212cc Recoil Start 7.0 HP Gasoline Engine • 1 - 12V D/C Outlet • 4 - 120V A/C Outlets • 1 - 120V RV Outlet • Engine Run Time: 10 Hours @ 50% Load • Low Oil Shutdown • AVR Automatic Voltage Regulation • EPA & CARB Approved • Noise Level: 69dB @ 0% Load • Oil Capacity: 18.6 ounces • Fuel Capacity: 3.
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 California and 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.
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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. DO NOT RETURN THIS GENERATOR TO THE RETAILER.
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 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.
Subsequent Use of this Generator For subsequent uses of this generator after the first use, certain steps still must be completed to prepare it for operation. IMPORTANT: Be familiar with the procedures described in the previous section titled “Using the Generator for the First Time” of this manual. If not, review this section now. Step 1 - Verify Oil Level It is important to check the oil level in the engine crankcase before each use to ensure that there is sufficient quantity. 1.
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 4000, do not attempt to draw more than 3500 Watts from the 120 Volt outlet. Draws higher than 3500 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.
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. Set the engine switch to the “OFF” position. 4. Turn the fuel valve to the “OFF” position. Allow this generator to cool down before touching areas that become hot during operation.
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. If there is no oil on the dipstick, or oil is visible only at the very end of the dipstick, add oil until the engine crankcase is filled. 5.
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.
TROUBLESHOOTING If the engine starts and runs, but does not produce power, or power is too low. GEN4000 Portable Gasoline Generator Governor screw needs adjusting. Plug in voltmeter on VAC. See what the volts are. The reading should be 110 to 120. If it is too high or too low, adjust the governor screw, which is located above the pull start (on the green metal shroud). WARNING – DO NOT ADJUST THE GOVERNOR SCREW WITHOUT USING A VOLTMETER.
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EMISSION CONTROL SYSTEM WARRANTY GEN4000 Portable Gasoline Generator 28
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 2015 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. Territories In other areas of the United States, your engine must be designed, built and equipped to meet the U.
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. (4) Repair or replacement of any warranted part under the warranty provisions herein must be performed at a warranty station at no charge to the owner. (5) Notwithstanding the provisions herein, warranty services or repair will be provided at all of our distribution centers that are franchised to service the subject engines.