Harbor Freight Tools 68306, 68120 owner manual Checking and Filling Fuel, Engine Oil Change

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Checking and Filling Fuel

WARNING! TO PREVENT SERIOUS

INJURY FROM FIRE:

Fill the fuel tank in a well-ventilated area away from ignition sources. If the engine is hot from use, shut the engine off and wait for it to cool before adding fuel.

Do not smoke.

1.Clean the Fuel Cap and the area around it.

2.Unscrew and remove the Fuel Cap.

3.If needed, fill the Fuel Tank to about 1 inch under the fill neck of the Fuel Tank with 87 octane or higher unleaded gasoline. For the 68121, fill to the bottom of the fuel strainer ONLY, see below.

Engine Oil Change

CAUTION! Oil is very hot during operation and can cause burns. Wait for engine to cool before changing oil.

1.Make sure the engine is stopped and is level.

2.Close the Fuel Valve.

3.Place a drain pan (not included) underneath the crankcase’s drain plug.

4.Remove the drain plug and, if possible, tilt the crankcase slightly to help drain the oil out. Recycle used oil.

5.Replace the drain plug and tighten it.

6.Clean the top of the Dipstick and the area around it. Remove the Dipstick by threading it counterclockwise, and wipe it off with a clean lint free rag.

SAFETY

68121 Max Fuel

Full level

Full level

SETUP

DO NOT OVERFILL!

WARNING! TO PREVENT FUEL LEAKAGE AND FIRE HAZARD, do not fill fuel above the bottom of fuel strainer for the 68121, 212cc engine.

Note: Do not use gasoline containing more than 10% ethanol (E10). Do not use E85 ethanol.

Note: Do not use gasoline that has been stored in a metal fuel container or a dirty fuel container. It can cause particles to enter the carburetor, affecting engine performance and/or causing damage.

4.Then replace the Fuel Cap.

5.Wipe up any spilled fuel and allow excess to evaporate before starting engine.

To prevent FIRE, do not start the engine while the smell of fuel hangs in the air.

7.Add the appropriate type of oil until the oil level is at the full level. SAE 10W‑30 oil is recommended for general use.

The SAE Viscosity Grade chart shows other viscosities to use in different average temperatures.

SAE Viscosity Grades

30

10W-30

5W-30

-20 0 20 40 60 80 100°F

Average outdoor temperature

8. Thread the dipstick back in clockwise.

CAUTION! Do not run the engine with too little oil. The engine will be permanently damaged.

OPERATION

MAINTENANCE

Horizontal Engines

For technical questions, please call 1-800-520-0882.

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Contents Save this Manual Email our technical support at predator@harborfreight.comTable of Contents RPM Symbol DefinitionsYOU in Minutes Set up PrecautionsOperating Precautions Carbon Monoxide Hazard Using an engine indoors can KillService Precautions RefuelingDo not Overfill Battery Setup Instructions To Prevent Serious InjuryEngine on a Vehicle Serial Number Location Engine SwitchEngine Controls Starter Handle Muffler DipstickChecking and Filling Engine Oil Pre-Start ChecksStarting the Engine Checking and Filling FuelInjury from Fire Manual Start Turn the Engine Switch onBreak-in Period Stopping the EngineStart Turn the Engine Switch to StartOFF Cleaning, Maintenance, and Lubrication Schedule To Prevent Serious Injury from Accidental StartingTo Prevent Serious Injury from Equipment Failure Engine Oil Change Brand Air Filter Element MaintenanceCleaning Spark Plug Maintenance CapStorage Troubleshooting Do not use gasoline with more than10% ethanol E15, E20, E85, etc Use Engine will not start Compression Related section Limited 90 Day Warranty Emission Control System WarrantyManufacturer’s Warranty Coverage Please Read the Following Carefully Record Product’s Serial Number Here 68120 212cc Parts List0882 68120 212cc AssemblyDiagram Call68121 212cc Parts List 68121 212cc Assembly Diagram 68136 346cc Parts List 68136 346cc Assembly Diagram68306 420cc Parts List 68306 420cc AssemblyFor technical questions, please call Horizontal Engines Mounting Hole DiagramsItem 68120 / 68121 212cc Item 68136 346cc and Item 68306 420cc16-24UNF Power Take-Off DiagramsMission Oaks Blvd. PO Box 6009 Camarillo, CA 93011 800

68306, 68120 specifications

Harbor Freight Tools is known for offering a wide range of tools and equipment at competitive prices, making it a favored choice for DIY enthusiasts and professionals alike. Among their extensive catalog, the 68120 and 68306 models stand out for their performance and versatility.

The Harbor Freight Tools 68120 is a 1,000-pound capacity engine hoist designed for lifting heavy engines and machinery with ease. One of its main features is its compact design, which allows for great maneuverability in tight spaces. The hoist operates on a hydraulic system, providing smooth lifting capabilities that ensure safety and reliability. The adjustable boom extends from 45 to 70 inches, enabling users to reach a variety of engine positions without hassle.

Additionally, the 68120 boasts a sturdy steel construction that adds to its durability and longevity. It also includes oversized wheels, making it effortless to move around the garage or shop without damaging floors. A safety latch is integrated into the main boom, which secures loads during operation, providing peace of mind to the user. The hoist is designed with efficiency in mind, enabling users to complete tasks more quickly and effectively.

The 68306 model is a pneumatic tire changer, specifically designed for hassle-free tire changing on various vehicles. This tool features an impressive range of compatibility, accommodating tires from 10 to 21 inches in diameter. The robust construction includes heavy-duty steel components, ensuring that it can withstand the rigorous demands of repeated use in a busy workshop or in mobile situations.

One of the standout features of the 68306 is its pneumatic operation, which allows for quick and effortless tire mounting and demounting. The user-friendly design includes an adjustable arm for varying tire widths, ensuring versatility for different vehicle types. Moreover, the incorporated bead breaker makes it easy to separate tires from their wheels without exerting excessive force.

In summary, both the Harbor Freight Tools 68120 and 68306 provide exceptional value for users seeking reliable, efficient, and robust tools to enhance their automotive repairs. With their advanced features and durable designs, they exemplify the high-quality offerings available from Harbor Freight, catering to both casual and professional users. Whether you need to lift heavy engines or change tires quickly, these tools stand ready to deliver performance and convenience.
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