HOW to USE Your Lawn Mower Engine Speed

Theoperationof anylawn mower can

result in foreign objects thrown into the eyes, which can result in severe eye damage. Always wear safety glasses or eye shields while operating your lawn mower or performing any adjustments or repairs. We recommend a wide vision safety mask over the spectacles or

HOW TO USE YOUR LAWN MOWER

ENGINE SPEED

The engine speed was set at the factory for optimum performance, Speed is not adjustable.

ENGINE ZONE CONTROL

CAUTION; Federal regulations require an

engine control to be installed on this lawn mower in order to minimize the risk of

blade contact injury. Do not under any circumstances attempt to defeat the function of the operator control° The blade turns when the engine is running,

°Your lawn mower is equipped with an operator presence control bar which requires the operator to be positioned behind the lawn mower handle to start

and operate the lawn mower.

TO ADJUST CUTTING HEIGHT

°Raise wheels for low cut and lower wheels for high cut.

°Adjust cutting height to suit your

requirements. Medium position is best for most lawns.

•To change cutting height, squeeze adjuster lever toward wheel. Move wheel up or down to suit your require- ments. Be sure all wheels are in the same setting.

NOTE: Adjuster is properly positioned when plate tab inserts between tabs in lever. Also, 9-position adjusters (if so equipped) allow lever to be positioned between the plate tabs.

Raise wheels for low cut

Lever'

___

_atetab!I

Lower wheels for high cut

CAUTION: Do not run your lawn mower without discharge guard, approved grass catcher in place.

BEFORE STARTING ENGINE

OIL

Your lawn mower is shipped without oil in the engine.

=Be sure mower is level and area around oil fill is clean.

,, Remove engine oil plug and fill to the top of slot in filler hole.

°Use 20 ozs. of oil. For type and grade of oil to use, see "ENGINE" in Customer Responsibilities section of this manual.

o Pour oil slowly. Do not over fill.

o Check oil level before each use. Add oil if needed.

o Reinstall engine oil plug and tighten.

o Change the oil after every 25 hours of operation or each season. You may need to change the oil more often under

dusty, dirty conditions.

GAS

°Fill fuel tank. Use fresh, clean,

regular unleaded gasoline with a minimum of 87 octane. Do not mix oil with gasoline. Purchase fuel in quantities that can be used within 30 days to assure fuel

freshness.	Gasoline filler cap
Oil filler plug

TO START ENGINE

o To start a cold engine, push primer five

(5)times before trying to start. Use a firm push. This step is not usually necessary when starting an engine which has already run for a few minutes_ Hold operator presence control bar down to the handle and pull starter handle quickly. DO NOT allow starter rope to snap back.

o To STOP engine, release operator presence control bar.

917.38721 specifications

The Craftsman 917.38721 is a versatile and reliable lawn tractor designed for homeowners seeking to maintain their lawns with ease and efficiency. This model is a part of Craftsman's renowned lineup of outdoor power equipment, celebrated for their durability and performance. One of the most prominent features of the Craftsman 917.38721 is its powerful engine. It is equipped with a robust single-cylinder engine, providing ample power to tackle various mowing tasks. The engine is designed for smooth operation and longevity, ensuring that it can withstand regular use while delivering consistent performance.

Another key characteristic of the Craftsman 917.38721 is its cutting deck. With a generous cutting width, this lawn tractor can cover a wide area in a single pass, reducing mowing time and increasing efficiency. The cutting deck is adjustable, allowing users to choose from various height settings for a customized mowing experience. This feature allows homeowners to achieve the perfect cut for their lawn, whether it requires a close trim or a higher, more forgiving setting.

In terms of maneuverability, the Craftsman 917.38721 is designed with a tight turning radius, which facilitates easy navigation around obstacles like trees, flower beds, and garden ornaments. This aspect enhances the overall user experience, making it easier for operators to mow their lawns without missing spots or leaving untrimmed areas.

The Craftsman 917.38721 also incorporates advanced technologies that enhance its performance and ease of use. The model features a reliable automatic transmission system, allowing for smooth gear changes without manual intervention. This transmission enables users to maintain a steady pace, ensuring that mowing is not only easier but also more enjoyable.

Comfort is another priority in the design of the Craftsman 917.38721. The ergonomic seating and controls are designed to provide a comfortable riding experience, even during extended periods of use. The easy-to-access controls allow users to adjust settings quickly without fumbling, making the mowing process more efficient.

Additionally, the Craftsman 917.38721 is built with long-lasting materials and components, ensuring that it can withstand the rigors of yard work. Whether used for weekly mowing or larger landscaping projects, this lawn tractor is engineered to meet the demands of homeowners looking for a reliable and effective solution for maintaining their outdoor spaces. In summary, the Craftsman 917.38721 represents a blend of power, versatility, and user-friendly features, making it an excellent choice for lawn care enthusiasts.