Figure 13

4.Remove blade and adapter from the crankshaft.

5.The blade may be resharpened by removing it and either grinding or filing the cutting edge keeping as close to the original bevel as possible. Do not attempt to sharpen the blade while it is still on the mower.

6.It is extremely important that each cutting edge receives an equal amount of grinding to prevent an unbalanced blade.

NOTE: Improper blade balance will result in excessive vibration causing eventual damage to the engine and mower. Be sure to carefully balance blade after sharpen- ing. Possible damage resulting from blade unbalance condition is not the responsibility of the manufacturer.

NOTE: Always remove blade from the adapter for testing balance.

7.The blade can be tested for balance by balancing it on a round shaft screwdriver. Remove metal from the heavy side until it balances evenly.

8.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.

9.Install the blade adapter on the crankshaft with the “star” away from the engine. See 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.

10.Tighten the hex bolt to the torque listed below:

Blade Mounting Torque

Center Bolt 450 in. lb. min., 600 in.lb. max.

To insure safe operation of your unit, ALL nuts and bolts must be checked periodically for correct tightness.

Figure 14

Rear Flap Replacement

The rear flap is attached to the back of the mower deck, and is designed to minimize the possibility that objects will be thrown from the rear of the mower toward the operator. If the rear flap becomes damaged, replace as follows.

1.To remove the old rear flap, lift rear door, and press flap in on either side to remove from hole. See Figure 14.

2.Remove flap from opposite hole and replace with new flap following these steps in reverse order.

Off-Season Storage

The following steps should be taken to prepare your lawn mower for storage.

1.Clean and lubricate mower thoroughly as described in the lubrication instructions.

2.We do not recommend the use of a pressure washer or garden hose to clean your unit.

3.Refer to engine manual for correct engine storage instructions.

4.Coat mower’s cutting blade with chassis grease to prevent rusting.

5.Store mower in a dry, clean area. Do not store next to corrosive materials, such as fertilizer.

NOTE: When storing any type of power equipment in a poorly ventilated or metal storage shed, care should be taken to rust-proof the equipment. Using a light oil or silicone, coat the equipment, especially cables and all moving parts of your lawn mower before storage.

5

Maintenance

WARNING

When removing the cutting blade for sharpening or replacement, protect your hands with a pair of heavy gloves or use a heavy rag to hold the blade.

An unbalanced blade will cause excessive vibration when rotat- ing at high speeds. It may cause damage to mower, and could break causing per- sonal injury.

Cutting grass in sandy soil condition causes abrasive wear to the blade.

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Yard-Man 540 manual Rear Flap Replacement, Blade Mounting Torque
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540 specifications

The Yard-Man 540 stands out in the realm of outdoor power equipment, specifically designed for homeowners seeking a reliable and efficient lawn mower. With its blend of advanced features and user-friendly design, it has garnered a reputation for both performance and ease of use.

One of the main features of the Yard-Man 540 is its robust engine. Powered by a reliable 140cc OHV engine, it delivers ample power to tackle various types of grass and terrain. The engine's efficient design not only ensures a clean cut but also minimizes fuel consumption, making it economical for regular use.

Equipped with a 21-inch cutting deck, the Yard-Man 540 allows for a wider cutting path, enabling users to finish their mowing tasks more quickly. The sharp, durable blades are designed for precise cutting and can handle different grass lengths with ease. For added convenience, the mower features a height adjustment system that enables users to customize the cutting height according to their preferences. This adjustment can be made effortlessly with a single lever, providing flexibility for various landscaping needs.

Another notable characteristic of the Yard-Man 540 is its lightweight construction. Weighing in at approximately 60 pounds, this mower is easy to maneuver, allowing users to navigate tight spaces and corners without difficulty. The ergonomic handle provides a comfortable grip, reducing strain on the arms and hands during extended use.

The Yard-Man 540 also comes equipped with a collection bag that efficiently captures grass clippings, helping to maintain a neat and tidy lawn. Alternatively, users can opt for mulching capabilities, allowing the mower to finely chop grass clippings and return them to the lawn as natural fertilizer, thereby promoting healthy growth.

For those concerned about maintenance, the Yard-Man 540 is designed with accessibility in mind. Its easy-start system ensures hassle-free operation, while the air filter and spark plug are positioned for straightforward servicing. This focus on maintenance makes the mower a practical choice for those who seek durability and longevity in their gardening tools.

In summary, the Yard-Man 540 is a powerful yet user-friendly lawn mower that combines advanced technologies with essential features. Its efficient engine, large cutting deck, lightweight design, and versatile mowing options make it an excellent choice for homeowners looking to achieve a pristine lawn with minimal effort. Whether you are a seasoned gardener or a newcomer to lawn maintenance, the Yard-Man 540 promises performance and reliability you can count on.
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