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SF 

ITEM # GEN4000TRI 

4000 SURGE WATTS / 3500 RUNNING WATTS 

TRI FUEL: LPG LIQUID PROPANE, GASOLINE, NATURAL GAS  

PORTABLE 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.  

 

HAVE  QUESTIONS  OR  PROBLEMS?  CONTACT  CUSTOMER  SERVICE 

If you experience a problem or need parts, visit our website http://www.buffalotools.com  or  call  customer  service   

at

 

1-866-460-9436,  Monday-Friday,  8 AM - 4 

PM Central Time. A copy of the sales receipt is required.

 

IF THERE  

IS ANY QUESTION ABOUT A CONDITION BEING SAFE OR UNSAFE, DO NOT OPERATE THIS PRODUCT!  

 

FOR CONSUMER USE ONLY – NOT FOR PROFESSIONAL USE. 

 

KEEP THIS MANUAL, SALES RECEIPT & APPLICABLE WARRANTY FOR FUTURE 
REFERENCE.

 

 

 

ATTENTION: OIL IS NOT INCLUDED WITH THE GENERATOR 

AND MUST BE ADDED BEFORE FIRST USE. 

 

ATTENTION: THIS GENERATOR IS NOT INTENDED TO 

POWER MEDICAL DEVICES OR LIFE SUPPORT APPLIANCES.

 

ATTENTION: FOLLOW ENGINE BREAK-IN PROCEDURE FOR 

FIRST 20 HOURS OF USE. 

 

ATTENTION: DO NOT EXCEED MAX WATTAGE CAPACITY, 

OTHERWISE DAMAGE CAN OCCUR TO GENERATOR AND/OR 

APPLIANCES. FOLLOW WATTAGE GUIDE TO DETERMINE 

PROPER STARTING & RUNNING WATTS.

 

Summary of Contents for SPORTSMAN GEN4000TRI

Page 1: ... need parts visit our website http www buffalotools com or call customer service at 1 866 460 9436 Monday Friday 8 AM 4 PM Central Time A copy of the sales receipt is required IF THERE IS ANY QUESTION ABOUT A CONDITION BEING SAFE OR UNSAFE DO NOT OPERATE THIS PRODUCT FOR CONSUMER USE ONLY NOT FOR PROFESSIONAL USE KEEP THIS MANUAL SALES RECEIPT APPLICABLE WARRANTY FOR FUTURE REFERENCE ATTENTION OIL...

Page 2: ...cretion either pay for shipping costs to and from an authorized service center provide for a service technician to come to the owner to make the warranty repair or pay for the repair to be made at a local non authorized service center The provisions of this paragraph apply only for the contiguous states excluding the states with high altitude areas identified in 40 CFR part 1068 Appendix III To ex...

Page 3: ...ockable fuel shut off valve at the connection point An approved flexible fuel line must be installed between the engine generator set and the supply line WARNING The Natural Gas fuel supply line must always be shut off when the engine is not running Failure to do so may allow fuel to leak at the unit Do not use galvanized pipe in the fuel line runs The galvanized coating will become eroded and fla...

Page 4: ...el 13 Step 3 Ground The Generator 14 Subsequent Use Of This Generator 14 Step 1 Verify Oil Level 14 Step 3 Ground The Generator 15 STARTING THE GENERATOR 15 USING THE GENERATOR 16 AC Usage 16 DC Usage 18 STOPPING THE GENERATOR 18 MAINTENANCE CARE 19 Recommended Maintenance Schedule 19 Cleaning The Generator 19 Checking The Oil Level 19 Changing Adding Oil 20 Air Filter Maintenance 21 Spark Plug Ma...

Page 5: ...e injury or death DANGER indicates an imminently hazardous situation which if not avoided will result in death or serious injury WARNING indicates a potentially hazardous situation which if not avoided could result in death or serious injury CAUTION indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury CAUTION used without the safety alert symbol i...

Page 6: ...his 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 Such co...

Page 7: ...ylinders from physical damage do not drag roll slide or drop Use a suitable hand truck for cylinder movement Post No Smoking or Open Flames signs in the storage areas There should be no sources of ignition All electrical equipment should be explosion proof in the storage and use areas Storage areas must meet national electric codes for class 1 hazardous areas Propane smells like rotten eggs a skun...

Page 8: ...Item GEN4000TRI 4000 Surge Watt 3500 Running Watt Portable Tri Fuel LP Liquid Propane Gasoline Natural Gas Generator Manual 8 ...

Page 9: ...att 3500 Running Watt Portable Tri Fuel LP Liquid Propane Gasoline Natural Gas Generator Manual 9 In addition to the previously described safety information familiarize yourself with all safety and hazard notices on this generator ...

Page 10: ...enerator 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 Item List Set of 2 DC connector wires for charging 12 Volt automotive type batteries Spark plug wrench 5 Ft Regulator Hose Kit YOU MUST USE THIS SUPPLIED REGULATOR FOR LPG FOR SAFE OPERATION DO NOT USE...

Page 11: ...T USE THE SUPPLIED REGULATOR FOR LPG FOR SAFE OPERATION ATTENTION The Air fuel Mixer is not adjustable Tampering with the governor can damage your generator and electrical devices and will void your warranty To prevent electrical shock from faulty appliances the generator should be grounded Connect a length of heavy wire between the ground terminal and the ground source Consult with a qualified el...

Page 12: ...ckage this generator contains no oil in the engine crankcase The correct quantity of oil is equal to the oil capacity of the engine crankcase and is 18 5 fluid oz Add the correct quantity of oil before operating this generator for the first time When replenishing oil for subsequent use of this generator always determine that this generator has the correct quantity of oil Model GEN4000TRI Oil Capac...

Page 13: ...ystem with a gas hose no less than 3 8 inside diameter no longer than 10 ft 3 m and to the gas inlet fig 3 DO NOT use the LP regulator hose for NG NOTE If using LPG NG be sure that the carburetor is free of gasoline If using gasoline fuel add Unleaded gasoline only with an octane rating of 87 or higher Maximum Capacity 3 6 Gallons Pre Operation Check List Step 1 Check that the gas supply source is...

Page 14: ...ibed 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 Even though this generator is equipped with an automatic shutoff to protect it from damage due to low oil it is important to check the oil level in the engine crankcase before each use to ensure that there is sufficient quantity 1 Verify that this generat...

Page 15: ... for customer service Disconnect all electrical loads from this generator before attempting to start Step 1 If using Propane LPG fuel open fuel supply on the LP tank If using NG fuel open fuel supply on the NG pipe If using gasoline make sure unleaded gasoline fuel has been added to the tank Step 2 If using Propane LPG NG fuel turn ENGINE SWITCH to ON position and Petcock to OFF position NOTE Be s...

Page 16: ...at will have a total wattage less than or equal to the rated wattage for the generator i e no more than 3500 watts for this generator This generator can run at its surge wattage capacity for only a short time Connect electrical devices requiring a rated running wattage equal to or less than the rated wattage of this generator Never connect devices requiring a rated wattage equal to the surge watta...

Page 17: ...r 3 Turn on the connected electrical devices beginning with the device with the highest rated wattage requirement and then each additional device with the next lower rated wattage requirement Do not connect 50Hz or 3 phase loads to this generator Figure 8 Outlets available on this generator SOME NOTES ABOUT POWER CORDS Long or thin cords can require more wattage from a generator to power an electr...

Page 18: ...wires from this generator first to avoid a spark Storage batteries emit highly explosive hydrogen gas when charged Batteries also contain acid which can cause severe chemical burns Do not allow open flames or cigarettes nearby for several minutes after charging a battery Always wear protective goggles and rubber gloves when charging a battery If battery acid gets on the skin flush with water If ba...

Page 19: ...irst Use X Air Filter Check Clean X X Fuel Filler Clean X Spark Plug Check Clean X Clean X Spark Arrestor Clean X Valve Clearnace Check adjust X Figure 10 Recommended maintenance schedule Cleaning the Generator Always try to use this generator in a cool dry place If this generator becomes dirty the exterior can be cleaned with a damp cloth soft brush vacuum and or pressurized air Never clean this ...

Page 20: ...ns 2 Unscrew the oil drain plug located on the crankcase underneath the oil filler dipstick cap using 10 mm hex wrench Figure12 3 Allow all of the oil to drain from the generator 4 Replace the oil drain plug and tighten using 10 mm hex wrench Fig 12 NOTE Never dispose of used motor oil in the trash down a drain or on the ground Put oil in a sealed container and contact your local recycling center ...

Page 21: ... like elements in the air filter casing the fine element first and replace the cover Figure 15 Removing the Air Filter Casing Figure 16 Locating the Spark Plug Spark Plug Maintenance The spark plug is essential for proper engine operation The spark plug should be intact free of deposits and properly gapped A bad or incorrectly installed spark plug can cause engine damage To inspect the spark plug ...

Page 22: ...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 Do not obstruct any ventilation openings Do not drop or strike this generator while moving it Store this generator in a cool dry area free of excessive dust Storage Time Recommended Storage Procedure which will help prevent difficult starts Less...

Page 23: ...s dirty Clean or replace air filter Loose wiring harness connection Turn off generator then check wiring behind control panel and at the end of generator for loose connection If wires are loose tighten the screws and or nuts Be certain the plug in connectors are pushed together all the way Engine runs but there is no electrical output Reset button s is are off Push reset button s to on Loose wirin...

Page 24: ...Item GEN4000TRI 4000 Surge Watt 3500 Running Watt Portable Tri Fuel LP Liquid Propane Gasoline Natural Gas Generator Manual 24 PARTS DIAGRAM ...

Page 25: ...Item GEN4000TRI 4000 Surge Watt 3500 Running Watt Portable Tri Fuel LP Liquid Propane Gasoline Natural Gas Generator Manual 25 ...

Page 26: ...Item GEN4000TRI 4000 Surge Watt 3500 Running Watt Portable Tri Fuel LP Liquid Propane Gasoline Natural Gas Generator Manual 26 ...

Page 27: ...Item GEN4000TRI 4000 Surge Watt 3500 Running Watt Portable Tri Fuel LP Liquid Propane Gasoline Natural Gas Generator Manual 27 ...

Page 28: ...Item GEN4000TRI 4000 Surge Watt 3500 Running Watt Portable Tri Fuel LP Liquid Propane Gasoline Natural Gas Generator Manual 28 ...

Page 29: ...Item GEN4000TRI 4000 Surge Watt 3500 Running Watt Portable Tri Fuel LP Liquid Propane Gasoline Natural Gas Generator Manual 29 ...

Page 30: ...Item GEN4000TRI 4000 Surge Watt 3500 Running Watt Portable Tri Fuel LP Liquid Propane Gasoline Natural Gas Generator Manual 30 ...

Page 31: ...tribution center or service center authorized by BUFFALO CORP as soon as the problem exists The warranty repairs should be completed in a reasonable amount of time not to exceed 30 day If you have any questions regarding your warranty rights and responsibilities you should contact Buffalo Corp customer service representative at 1 866 460 9436 or write to info buffalotools com DEFECTS WARRANTY COVE...

Page 32: ...llowing a warranty claims Buffalo Corp will not be liable to warrant failures of warranted parts caused by the use of a non exempted add on or modified part 11 The manufacturer issuing the warranty shall provide any documents that describe that manufacturer s warranty procedures or policies within five working days of request by the Air Resources Board EMISSION WARRANTY PARTS LIST 1 Fuel Metering ...

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