Yard-Man 437 manual Servicing Your Mower, Blade Care, To Sharpen Blade

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SECTION 7: SERVICING YOUR MOWER

Blade Care

Periodically inspect the blade adapter and pulley for cracks, especially if you strike a foreign object. Replace when necessary.

WARNING: When removing the cutting blade for sharpening or replacement, protect hands by using heavy gloves or a thick rag to grasp the cutting blade.

•Disconnect spark plug wire from spark plug.

•Turn mower on its side making sure that the air filter and the carburetor are up.

•Remove the bolt and blade support or bell washer which hold the blade and adapter to the engine crankshaft. See Figure 13. Remove the blade and adapter from the crankshaft.

Blade Adapter

Blade

Blade

Bell

Support

Hex Bolt

Figure 13

To Sharpen Blade:

•The blade can be sharpened with a file or on a grinding wheel. Do not attempt to sharpen the blade while it is still on the mower.

•Follow the original angle of grind as a guide. Make sure that each cutting edge receives an equal amount of grinding to prevent an unbalanced blade.

NOTE: An unbalanced blade will cause excessive vibration when rotating at high speeds, may cause damage to the mower and could break causing personal injury.

•The blade can be tested by balancing it on a round shaft screwdriver. See Figure 14. Remove metal from the heavy side until it balances evenly. It is recommended that the blade always be removed from the adapter for the best test of balance.

1.Insert screw driver through hole

2.Blade should be parallel to ground

Screw

 

 

 

 

 

Blade

 

 

 

 

 

Driver

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ground

Figure 14

•Before reassembling the blade and the blade adapter to the unit, lubricate the engine crankshaft and the inner surface of the blade adapter with light oil (or engine oil). Also lubricate the bolt holes, bolts and inner surface of the nuts.

•Install the blade adapter on the crankshaft with the “star” away from the engine. Refer to Figure 13. Place the blade with the side marked bottom (or with part number) facing away from the adapter.

•Align the blade bell support over the blade with the tabs in the holes of the blade and insert the hex bolt. Tighten the center bolt to 450 in. lbs. min., 600 in. lbs. max.

IMPORTANT:To ensure safe operation, all nuts and bolts must be checked periodically for correct tightness.

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Contents Operator’s Manual Table of Contents General Operation Important Safe Operation PracticesChildren ServiceSlope Operation Do NotYour Responsibility General ServiceSlope Gauge Assembling Your Lawn Mower Assembling Grass Catcher Attaching Starter RopeAttaching Grass Catcher Removing Grass Catcher Know Your Lawn MowerConverting to Side-Discharge Blade Control HandleGas and Oil Fill-Up Operating Your Lawn MowerBefore Starting Mower Starting EngineAdjusting Cutting Height Using the MulcherOperating Your Lawn Mower Bagging Grass ClippingsEngine Maintenance Cleaning the Lawn MowerMaintaining Your Lawn Mower Blade Care Servicing Your MowerTo Sharpen Blade Adjusting Handle Height Making AdjustmentsAdjusting Carburetor Replacing Rear FlapGasoline TROUBLE-SHOOTING GuideMower Parts List for Model Model MTD LLC, P.O. BOX 361131 CLEVELAND, Ohio 44136-0019 Phone MANUFACTURER’S Limited Warranty for

437 specifications

The Yard-Man 437 is a creative solution for homeowners seeking to enhance their outdoor maintenance experience. With its rugged design and powerful performance, it stands out as a reliable tool for tackling various yard tasks. The model boasts a compact size, making it easy to maneuver around tight spaces, while still providing ample cutting power required for efficient lawn care.

One of the main features of the Yard-Man 437 is its robust engine. Equipped with a reliable four-stroke engine, it ensures not only robust performance but also lower emissions, contributing to a cleaner environment. This engine delivers impressive torque, allowing the Yard-Man 437 to handle thick grass and challenging terrain effortlessly.

Another notable characteristic of the Yard-Man 437 is its cutting system. It comes outfitted with a wide cutting deck that can be adjusted for different grass heights. The deck’s sturdy construction can handle rough use while maintaining precision in cutting. Additionally, the model incorporates mulching capabilities, enabling homeowners to recycle grass clippings back into the lawn, promoting healthier soil and reducing waste.

For user convenience, Yard-Man has integrated several modern technologies into the 437. It features an easy-start system that allows for quick ignition, saving precious time on busy mornings. The model also utilizes a self-propelling mechanism, which significantly reduces the physical exertion required during operation, especially on slopes or uneven ground.

The cutting height can be easily modified with just a simple lever adjustment, allowing users to customize their mowing to suit varying grass types and conditions. Moreover, the 437 is designed with comfort in mind. It has an ergonomic handle that provides a comfortable grip and minimizes vibration, enhancing the overall mowing experience.

Durability is another important aspect of the Yard-Man 437. Built with high-quality materials, it is designed to withstand the rigors of regular lawn maintenance. Coupled with its maintenance-friendly design, which allows for easy access to engine components, this model ensures longevity and reliability in performance.

In summary, the Yard-Man 437 is an excellent choice for those seeking a powerful, efficient, and user-friendly lawn mower. Its combination of a robust engine, advanced cutting system, ease of use features, and durable construction make it a standout model in the realm of outdoor power equipment. Whether for small yards or larger properties, the Yard-Man 437 proves itself capable and reliable, delivering optimal results with every use.
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