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.

Full level

Full level

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.

68121 Max Fuel

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.

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.

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.

Air Filter Element Maintenance

1.Remove the air filter cover and the air filter elements and check for dirt. Clean or replace as described below.

2.Cleaning:

•For “paper” filter elements:

To prevent injury from dust and debris, wear ANSI- approved safety goggles, NIOSH-approved dust mask/respirator, and heavy-duty work gloves. In a well-ventilated area away from bystanders, use pressurized air to blow dust out of the air filter.

If this does not get the filter clean, replace it.

•For foam filter elements:

Wash the element in warm water and mild detergent several times. Rinse. Squeeze out excess water and allow it to dry completely. Soak the filter in lightweight oil briefly, then squeeze out the excess oil.

3.Install the new filter or the cleaned filter.

Secure the Air Cleaner Cover before use.

Page 14

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

Horizontal Engines

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Harbor Freight Tools 67853 manual Engine Oil Change, Air Filter Element Maintenance, Cleaning
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67853 specifications

Harbor Freight Tools is widely recognized for providing a variety of high-quality tools at competitive prices, and the model 67853 is no exception. This tool combines functionality, durability, and affordability, making it a popular choice among both amateur and professional users.

The Harbor Freight Tools 67853 is a 20" tool chest that stands out for its robust construction and ample storage capabilities. This tool chest features double-walled steel construction, ensuring that it can withstand the rigors of a busy workshop or garage. Its powder-coated finish not only enhances its aesthetic appeal but also provides added protection against rust and corrosion, ensuring that the chest maintains its integrity over time.

One of the key features of the 67853 is the abundance of storage space it offers. The chest is designed with multiple drawers that provide easy access to tools and supplies. Each drawer is equipped with ball-bearing slides that ensure smooth opening and closing, minimizing the risk of wear and tear over time. The drawers are designed to hold a significant amount of weight, allowing users to store a variety of tools, from hand tools to power equipment.

The organization is made easy with the inclusion of padded drawer liners that help keep tools in place, preventing them from sliding around during opening and closing. This thoughtful design feature is particularly beneficial when working in a fast-paced environment where efficiency is key. Furthermore, the top section of the chest is perfect for displaying frequently used tools or storing small items for easy access.

Safety and security are also prioritized with the Harbor Freight Tools 67853. The chest comes equipped with a central locking system that secures all drawers simultaneously, protecting valuable tools from theft and ensuring that everything is kept in its designated place. This added layer of security is vital for professionals who rely on their tools for daily operations.

Another notable aspect of the 67853 is its mobility. The chest is fitted with sturdy casters, allowing users to easily move it around the workshop or garage as needed. This mobility is coupled with a solid locking mechanism that keeps the chest stable when in use, ensuring it won't roll away unexpectedly.

In terms of aesthetics, the Harbor Freight Tools 67853 features a sleek design that will complement any workspace. The glossy finish and minimalist lines provide a professional look that is appealing to users across all fields.

Overall, the Harbor Freight Tools 67853 offers excellent value for users seeking a reliable and stylish tool chest that fulfills various storage needs. Its durable construction, ample storage, and thoughtful design make it a top choice in the market, catering to both hobbyists and seasoned professionals alike.
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