Owner’s Manual M750137B.1 ITEM NUMBER: 750137 SERIAL NUMBER: _______________ Instructions for Installation/Set-up, Operation, Servicing, & Storage Portable, Outdoor Use-Only, Gasoline Generator 750137 – 2,000 Watt Continuous (2,500 Watt Surge) Capacity Can be used to power individual appliances plugged directly into the generator’s outlets, or as a back-up connection to a building’s power supply (via a professionally installed UL-listed transfer switch).
Hazard Signal Word Definitions 2
Table of Contents Hazard Signal Word Definitions ................................................................................................................ .2 About Your Generator ................................................................................................................................ .4 Specifications .............................................................................................................................................. .6 Safety Label Locations ..........
About Your Generator Thank you for purchasing your Powerhorse portable generator! About Your Generator This engine-driven, portable generator is designed to provide up to 2,500 Watts of electrical power (2,000 watts continuous, 2,500 watts surge). It can supply power: 1. As a portable power source. You can plug appliances directly into the generator’s electrical outlets. 2. As a back-up, standby power source for a building.
About Your Generator (cont’d) Proper preparation, operation, and maintenance will result in operator safety, as well as best performance and long life of the generator. For detailed engine operation and maintenance information, always refer to the engine section of this manual. Powerhorse is constantly improving its products. The specifications outlined herein are subject to change without prior notice or obligation.
Specifications Item Number Maximum Output Continuous Output Voltage Phase Frequency Power Factor Total Harmonic Distortion Run Time at 50% Load Engine Engine Speed Fuel Type Fuel Capacity Oil Capacity Starting Method 120 Volt Receptacles #750137 2,500 Watts (W) 2000 Watts (W) 120 Volt (V) Single phase (3-wire) 56.5 - 63.3 Hertz (Hz) 1.0 p.f. less than 5% 11 Hours 212cc 3600 RPM Unleaded gasoline 4 gallons (15 L) 0.63 US quarts / (0.
Safety Label Locations 6 4 5 7 8 9 3 2 1 17 16 15 14 13 12 12 Ref.
Safety Label Locations 2 1 5 3 4 6 7 9 8 10 14 11 12 16 13 15 8 17
Machine Component Identification 6 7 5 4 3 2 1 12 13 11 10 9 8 14 Reference Description 1 2 3 4 5 6 7 Reference Description Handle Air Cleaner Recoil Starter Grip Fuel Valve Gas Tank Fuel Gauge Gas Cap Reference 1 - Handle Reference 2 – Air Cleaner Reference 3 – Recoil Starter Grip Reference 4 – Fuel Valve Reference 5 – Gas Tank Reference 6 – Fuel Gauge Reference 7 – Gas Cap Reference 8 – Vibration Isolation Mount Reference 9 - Muffler Reference 10 - Generator Head Reference 11 – Control Panel R
Machine Component Identification 7 6 5 4 3 2 1 8 Ref. # 1 2 3 4 5 6 7 8 Description Qty.
Installation / Initial Set-Up (cont’d) There are a number of important steps required to set up your generator for initial use. These steps are: Steps for Installation / Initial Set-Up 1. Unpacking & delivery inspection. 2. Planning the power load to stay within the generator’s rated capacity. 3. Setting up generator for the type of power generation you need: a. portable power source, or b. connect to a building as a back-up power source. 4. Selecting a site for using the generator. 5.
Installation / Initial Set-Up (cont’d) 2. Planning the Power Load Plan your power load so that you do not exceed the generator’s rated capacity. WARNING NEVER exceed the rated wattage capacity of your generator. OVERLOADING may cause SERIOUS DAMAGE to the generator and attached electrical devices, and may result in fire. Your generator MUST BE SIZED PROPERLY to provide both the running and starting (surge) wattage of the devices you will be powering.
Installation / Initial Set-Up (cont’d) Device Electric nail gun Electric range (1 element) Electric skillet Furnace fan (1/3 HP) Freezer Hair dryer Hand drill (1”) Hand drill (1/2”) Hand drill (3/8”) Hand drill (1/4”) Hedge trimmer Home computer Impact wrench Running Watts 1200 1500 1250 1200 (a) 800 (b) 1200 1100 875 500 250 450 150 500 Device Radio Refrigerator Slow cooker Submersible pump (1-1/2 HP) Submersible pump (1 HP) Submersible pump (1/2 HP) Sump pump Table saw Television Toaster Vacuum cleaner
Installation / Initial Set-Up (cont’d) 3. Set-up either as a BUILDING BACK-UP or PORTABLE Power Source This generator is designed to provide up to 2,500 watts of electrical power. It can supply electricity in two ways: 1. As a back-up, standby power source for a building. For this application, you must arrange for a licensed electrician to connect the generator to your building’s electrical system via the installation of an UL-listed transfer switch.
Installation / Initial Set-Up (cont’d) Using as a portable power source When using the generator as a portable power source, you can plug electric devices and appliances directly into the generator’s electrical outlets. There are five different electrical outlets on the generator: 1. Four 120 Volt, 20 Amp Duplex Straight-Blade receptacles (NEMA 5-20R duplex receptacles compatible with NEMA 5-20P or 5-15P mating plugs). 2. One 12 Volt DC receptacle.
Installation / Initial Set-Up (cont’d) 4. Select a Suitable Site Before using the generator, you must select a suitable OUTDOOR location for installation and operation. This location should meet all of the criteria listed below. WARNING: You must choose a suitable site for operating your generator to avoid equipment damage and/or injury and possible death from carbon monoxide poisoning, electric shock, or fire. Choose a site that meets all of the criteria specified.
Installation / Initial Set-Up (cont’d) • DO NOT run the generator in close proximity to other heat-generating equipment, such as another generator. The combined heat that is generated may raise air temperature in the immediate area and there will not be adequate cooling ventilation. • DO NOT allow debris to accumulate and block airflow. • DO NOT operate with a tarp, blanket, or cover surrounding the generator.
Installation / Initial Set-Up (cont’d) 5. Grounding the generator Always ensure the generator is properly grounded to prevent electrical shock. You must always ground the generator by the following method when using the generator as a portable electrical source: 1. Drive a ¾” or 1” copper pipe or rod into the ground close to the generator. The pipe/rod must penetrate moist earth – the depth required will be dictated by local soil conditions. Consult with an electrician. 2.
Installation / Initial Set-Up (cont’d) 6. Wheel Kit Assembly Your generator is equipped with a free wheel kit to provide easy portability. Secure the generator on blocks at least 7” off the ground or work table. Make sure the holes in the base of the generator are not obstructed to allow for installation of axle and vibration brackets. Installing the axle and wheels 1. 2. 3. 4. 5. Slide (1) Axle into the end of the Wheel (1). Slide (1) Axle Washer onto the axle.
Installation / Initial Set-Up (cont’d) Installing Bushings into handle 1. Insert (2) Bushings into handle. Bushing Handle Installing the handle 2. Attach (1) Handle to (1) Generator Frame. Secure using (2) M8 x 40mm Flange Bolt and (2) M8 Flange Nut.
Installation / Initial Set-Up (cont’d) Attach Handle Pin to Generator Frame 1. 2. Attach lanyard to pin. Attach lanyard and pin to generator frame by looping the rope around the tube and inserting the pin through the loop.
Operation Once you have set up your generator for use, it is time to start your generator. The following are the procedures necessary for safe, successful operation of your generator. 1. 2. 3. 4. 5. 6. 7. Operation Procedures General Safety Rules for Operation Preparing for Operation Starting the Engine Checking Generator Output Connecting Electrical Loads (Portable Power Generation) Stopping the Engine Storage & Exercise of Generator Each of these procedures is discussed in detail below: 1.
Operation (cont’d) • Malfunction during operation. Immediately turn off the generator if any of the following conditions arise during operation: o Excessive change in engine speed, slow or fast o Overheating in load connecting devices o Sparking or arcs from generator o Loss of electrical output o Receptacle damage o Engine misfire o Excessive vibration o Flame or smoke o Abnormal noise • Adjusting / repairing.
Operation (cont’d) Static electricity and filling the gasoline tank: Static electricity can initiate from ungrounded gasoline tanks or containers, from flowing gasoline, and from persons carrying a static electric charge Static electricity can explosively ignite gasoline vapors that are present during the fueling process, resulting in serious burns to nearby persons.
Operation (cont’d) 2. Preparing for Operation Position generator Position generator in accordance with the instructions given in “Installation & Initial Set-up, Step 4: Select a Suitable Site” of this manual. Operate outside only, on dry, level ground with adequate clearance and ventilation. WARNING: Carbon monoxide poisoning hazard Generators give off carbon monoxide exhaust, a poisonous gas that can kill. You CANNOT smell it, see it, or taste it. ONLY run generator OUTDOORS and away from air intakes.
Operation (cont’d) Check/fill gasoline tank Check the gasoline level in the generator’s tank using the fuel gauge. If needed, fill tank with fresh UNLEADED gasoline from a portable container, after first reading the warnings and instructions below. WARNING: Gasoline fire/explosion hazard Gasoline is highly flammable and explosive. Heat, sparks, and flames can ignite gasoline vapors, which can become widespread during fueling. A flash fire and/or explosion could result and cause serious injury or death.
Operation (cont’d) WARNING: Static electric spark hazard A static electric spark can explosively ignite gasoline vapor, resulting in a flash fire that could cause serious injury or death.
Operation (cont’d) 3. Starting the Engine After you have completed the pre-start checklist procedures, you are ready to start the engine. To start the engine: 1) Disconnect all loads to the generator. 2) Turn the gasoline line valve to the ON position. 3) For cold engine, move choke lever to full choke position. To restart a warm engine, move choke lever to half choke or to RUN position. 4) Start the engine: a) Using recoil start – i) Turn the engine switch to the ON position.
Operation (cont’d) 4. Checking Generator Output Although the speed of the engine was carefully adjusted at the factory so that the generator produces the proper voltage and frequency, output voltage should be checked periodically to ensure the generator is working properly before connecting loads to the generator. WARNING: The generator must be run at the correct speed in order to produce the proper electrical voltage and frequency.
Operation (cont’d) 5. Connecting Electrical Loads You will want to be careful when connecting loads so as not to overload the generator, especially if you are powering devices with motors that require a higher starting power load. Instructions are provided below for connecting loads when you are using the generator: • As a portable power source • Connected to a building as a back-up power source WARNING: DONOT overload generator.
Operation (cont’d) 7. Storage & Exercise When you are finished using the generator, you must: • Disconnect all loads • Shut off fuel supply • Store the generator properly • Plan on exercising the engine regularly unless the generator is prepared for long-term storage Detailed instructions are provided below.
Maintenance & Repair Inspect and maintain your generator as specified below in order to keep it in safe and optimal working order. Follow all safety rules and recommended maintenance steps. WARNING ALWAYS shut off the engine, disconnect the spark plug(s) and discharge the capacitor before cleaning, adjusting, or servicing the generator. Make sure all guards and shields are replaced before using. Note: The generator head is a brush style and requires maintenance.
Maintenance & Repair (cont’d) Keep generator clean Keep generator clean. If dust or debris accumulates on the generator, clean the generator with a damp cloth or soft bristle brush. DO NOT allow air intakes to become blocked. Note: DO NOT spray generator with a garden hose or pressure washer. Water may enter the generator and cause damage to the rotor, stator, or internal windings. Moving and lifting generator Moving: The wheel kit and handle provide an easy method for moving the generator.
Troubleshooting TROUBLESHOOTING Problem Possible Causes Possible Remedies Engine will not start. a) b) c) d) e) f) g) h) i) j) k) a) a) b) c) d) e) f) g) h) i) j) k) a) Voltage too low. Low oil level. Fouled spark plug. Out of fuel. Engine switch in OFF position. Fuel valve in OFF position. Choke is in OPEN position. Bad fuel. Fuel filter restricted. Carburetor malfunctioning. Ignition malfunctioning. Inlet and Outlet valves stuck. Engine speed too slow. b) Generator is overloaded.
Summary of Important Safety Information for Operation This section provides a summary of the various safety procedures and measures that have been presented throughout the manual. Keep this summary handy and refer to it to refresh your memory about how to safely use your generator. WARNING Carefully read and make sure you understand the following safety information before using the generator.
Summary of Important Safety Information for Operation (cont’d) • • • • • switch installed by a licensed electrician in compliance with all applicable local building and electrical codes. If the generator is not isolated from the utility power system by such means, generator output will back feed into the utility power grid. This may result in injury or death to utility power workers or others who contact the lines during a power outage.
Summary of Important Safety Information for Operation (cont’d) Safety – During Use • Safety equipment / controls. Always operate the generator with all safety covers, guards, and barriers in place and in good working order, and all controls properly adjusted for safe operation. • Know how to stop. Be thoroughly familiar with proper use of the equipment and all generator controls, output receptacles, and connections. Know how to stop the generator quickly if needed. • Damaged.
Summary of Important Safety Information for Operation (cont’d) Safety – After use • Cool engine before storing. Let engine cool for at least five minutes before storing. A hot engine can be a fire hazard. • Shut off fuel supply. Make sure gasoline shut-off valve is in the OFF position. • Prevent accidental starting. When generator is not in use, remove spark plug wire in order to ensure that generator cannot be started in a storage location or by untrained persons. • Storage location.
Engine WARNING BEFORE operating the engine, be sure to read this section of the manual, otherwise injury to personnel or damage to equipment may occur. Engine starting components 1. Fuel Valve When the fuel valve is in the ON position, fuel is allowed to flow from the fuel tank to the carburetor. Be sure to return the fuel valve to the OFF position after stopping the engine. 2. Choke Lever The choke is used to provide an enriched fuel mixture when starting a cold engine.
Engine (cont’d) Maintenance schedule Engine oil Air filter Fuel Valve Sediment cup Spark plug Engine oil recommendations Before each use REGULAR SERVICE PERIOD Check level Change Check Clean Replace First month or 20 Hrs. Every 3 months or 50 Hrs. Every 6 months or 100 Hrs. Every year or 300 Hrs. ○ ○ ○ ○ ○(1) ○ Clean ○ Check-adjust Replace Clean Check-adjust ○ ○ Spark arrester ○ Idle speed ○(2) Valve ○(2) Check-adjust clearance Cylinder head Clean After every 500Hrs.
Engine (cont’d) Oil draining and checking oil level WARNING: Burn hazard Never open oil port while engine is running. Hot oil can spray over face and body. 1. Operate the generator for 3 to 5 minutes to thin oil for easier draining. 2. Ensure that the engine is stopped and on a level surface. 3. Remove the drain bolt and washer; drain the oil into an approved container. Dipstick Drain Bolt 4. 5. 6. 7. Spark plug removal, cleaning and replacement Reinstall washer and drain bolt.
Engine (cont’d) Clean air filter WARNING Never run the generator without the air filter. Rapid engine wear will result. 1. Unsnap or unscrew the air cleaner cover clips, remove the air cleaner cover, and remove the element. 2. Wash the air cleaner element in a solution of household detergent and warm water, then rinse thoroughly, or wash in nonflammable or high flashpoint solvent. Allow the air cleaner element to dry thoroughly. 3.
Engine (cont’d) Prepare engine for long term storage if needed If you will not be able to exercise the generator regularly, you must prepare the engine for long term storage to prevent gum deposits from forming and causing malfunction of the engine. Prepare engine for long term storage by: Removing all gasoline from the tank and carburetor. 1. 2. 3. 4. 5. Draining steps: Position a UL approved fuel container below the carburetor drain bolt. Turn fuel valve to the OFF position.
Engine (cont’d) High Altitude Operation CAUTION: Operating at an altitude of greater than 2000 feet (610 meters) may affect your engines performance, fuel consumption, and emissions. To remain emissions compliant and improve engine performance at higher altitudes, a high-altitude kit is required. A high altitude kit includes a carburetor jet resized to help correct air / fuel mixture at altitude. To order a high altitude kit or if you have additional questions, go to www.northerntool.
750137 Parts Explosion Rev – B.
750137 Parts Explosion Rev – B.1 REF# PART # DESCRIPTION 1 795691 GENERATOR HEAD ASSY 1 34.3 1.1 KIT #11 GROUNDING POST COMP 1 34.4 1.2 KIT #11 CARBON BRUSH COMP 1 34.5 2 795692 NON-DRIVE END BRACKET 1 34.6 3 KIT #6 MUFFLER BRACKET 1 34.7 4 KIT #2 PLUG, HANDLE 2 34.8 5 KIT #2 PIN, HANDLE 1 34.9 6 KIT #4 RUBBER DAMPING BRACKET 2 34.
750137 Parts Explosion Rev – B.
795693 Engine Parts Explosion Rev – B.
795693 Engine Parts Explosion Rev – B.
795693 Engine Parts Kits Rev – B.
Limited Warranty Dear Valued Customer: The Powerhorse Product you just purchased is built with the finest material and craftsmanship. Use this product properly and enjoy the benefits from its high performance. By purchasing a Powerhorse product, you show a desire for quality and durability. Like all mechanical equipment this unit requires a due amount of care. Treat this unit like the high-quality piece of machinery it is. Neglect and improper handling may impair its performance.
Distributed by Northern Tool & Equipment Company, Inc. Burnsville, Minnesota 55306 www.northerntool.
