Yard-Man E643E, E663H manual Operating Tips, Chute Assembly Adjustment, Traction Control Adjustment

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Operating Tips

NOTE: Allow the engine to warm up for a few minutes as the engine will not develop full power until it reaches operating temperature.

WARNING: Muffler, engine and surrounding areas become hot and can cause a burn. Do not touch.

•Set the skid shoes 1/4" below the shave plate for normal usage. The skid shoes may be adjusted upward (to lower the shave plate) for hard-packed snow. Adjust downward (to raise the shave plate) when using on gravel or crushed rock.

•Remove snow immediately after it falls.

•Discharge snow downwind whenever possible.

•Slightly overlap each previous cleared path.

•Follow the precautions found under the heading To Stop Engine to prevent possible freeze-up.

•Clean the snow thrower thoroughly after each use.

SECTION 6: MAKING ADJUSTMENTS

WARNING: Never attempt to make any adjustments while the engine is running, except where specified in operator’s manual.

Chute Assembly Adjustment

The distance snow is thrown can be varied by adjusting the pitch of the chute assembly. Refer to Chute Tilt Control on page 7 of this manual.

Chute Directional Control

Support Bracket Adjustment

If the spiral at the base of the chute directional control isn’t fully engaging with the notches in the lower chute assembly, the support bracket can be adjusted inward or outward as follows:

•Loosen, but do NOT remove the two hex nuts which secure the chute directional control support bracket to the snow thrower housing. See Figure 9.

 

Spiral

Hex Nuts

Support Bracket

 

Figure 9

•Adjust the support bracket inward or outward so that the spiral is fully engaged in the notches on the chute before retightening the hex nuts.

Traction Control Adjustment

Refer to the information found under the heading Final Adjustments in Section 3 of this manual to adjust the traction control. If you are uncertain that you have reached the correct adjustment, proceed as follows:

•Tip the snow thrower forward, allowing it to rest on the auger housing.

•Remove the frame cover underneath the snow thrower by removing six self-tapping screws.

With the traction control released, there must be clearance between the friction wheel and the drive plate in all positions of the shift lever.

With the traction control engaged, the friction wheel must contact the drive plate. See Figure 10.

If adjustment is necessary:

•Loosen the jam nut on the traction drive cable and thread the cable in or out as necessary.

•Retighten the jam nut to secure the cable when correct adjustment is reached.

•Reassemble the frame cover.

Friction

Wheel

Gear Shaft

Drive

Plate

Figure 10

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Contents Operator’s Manual Table of Contents Training Important Safe Operation PracticesMaintenance and Storage Assembling Your Snow Thrower Loose PartsTire Pressure Adjustment Chute Clean-Out ToolFinal Adjustments Traction Control and Shift Lever AdjustmentKnow Your Snow Thrower Electric Starter Operating Your Snow ThrowerBefore Starting Gas And Oil Fill-up Starting EngineTo Engage Augers To Stop EngineTo Engage Drive Drift Cutters if so equipped Operating Tips Chute Assembly AdjustmentChute Directional Control Support Bracket Adjustment Traction Control AdjustmentDrive Wheels Shift Rod AdjustmentAuger Control Adjustment Skid ShoesAugers ServiceMaintaining Your Snow Thrower LubricationDrive Belt Belt Removal And ReplacementShave Plate and Skid Shoes Auger BeltServicing Friction Wheel Rubber Off-season Storage Problem Cause Remedy TroubleshootingModel E663H & E643E Parts List Part Description Models E663H & E643E3132 Models E663H & E643E Models E663H & E643E 748-0360 Pulley 26 -0654A Hex Washer Screw 3/8-16 x 629-0071 64 a B 746-0896 Models E663H & E643E Page MTD LLC, P.O. BOX 361131 CLEVELAND, Ohio 44136-0019 Phone MANUFACTURER’S Limited Warranty for

E663H, E643E specifications

Yard-Man is a renowned brand in outdoor power equipment, known for its robust lawn mowers and garden tools tailored for efficiency and performance. Two notable models from their lineup are the Yard-Man E643E and the E663H, both designed to meet the diverse needs of homeowners and garden enthusiasts.

The Yard-Man E643E is a lightweight yet powerful electric lawn mower. It features a 14-inch cutting deck, making it perfect for small to medium-sized yards. The mower is powered by a potent 12-amp electric motor that provides the efficiency of a gas mower without the noise and emissions. One of the standout features of the E643E is its adjustable cutting height, which ranges from 1 inch to 3 inches, allowing users to customize the grass height according to their preferences and seasonal needs. This model is equipped with a rear bagger that collects clippings for easy disposal, ensuring a clean and manicured appearance for your lawn.

On the other hand, the Yard-Man E663H is a self-propelled gas mower built for those who require a more robust solution for larger lawns. It features a 21-inch steel cutting deck, which allows for wider cutting paths, reducing mowing time. The E663H is powered by a reliable Honda engine, known for its durability and efficiency. This model also offers multiple cutting height settings, ensuring versatility in grass management. An ergonomic handle with variable speed control makes it comfortable for users to operate, while the rear-wheel drive enhances traction, especially on uneven terrains.

Both models incorporate innovative technologies that enhance user experience. The E643E’s electric motor ensures quiet operation, making it ideal for residential areas without the disturbance typically associated with gas mowers. The E663H, meanwhile, utilizes a swingback blade system that enhances cutting efficiency and provides a clean cut while reducing the risk of blade damage from obstacles.

In terms of durability, both mowers are constructed with high-quality materials designed to withstand the rigors of landscape maintenance. Easy maintenance features, such as tool-less access to the blade and easy cleaning options, further cement their practicality.

In summary, both the Yard-Man E643E and E663H offer distinct advantages tailored to different user needs. The E643E is perfect for eco-conscious homeowners seeking an electric solution, while the E663H serves those needing a powerful, robust gas mower. Each is designed to make lawn care a hassle-free task, contributing to a healthier and more appealing outdoor space.
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