Step 14. Replace large baffle.

Step 15. Replace small baffle and three hex head screws holding it in place.

Step 16. Replace blade adapter and blade. See the Blade Removal, Sharpening and Replacement Section for proper assembly.

Small Baffle

Blade Adapter

Blade

Large Baffle

Hex Head Screw

Step 17. Replace the eight phillips head screws that hold the large baffle in place.

Step 18. Replace the rear wheels, rear wheel gears and hub caps. The gears need to be put on in the right way for the self propelled mechanism to work. Check the installation of the gear by spinning the wheel. It should spin freely in one direction but not the other. If the wheel spins freely in both directions, flip the gear over.

Step 19. Tip mower back onto its wheels

Step 20. Go through the neutral adjustment test in Section 7 - Operation.

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Yard Machines 387, 389, 370, 378 manual Small Baffle Blade Adapter Large Baffle Hex Head Screw

378, 370, 389, 387 specifications

Yard Machines is a well-known brand in the outdoor power equipment market, primarily recognized for producing reliable and efficient lawn care devices. Among their product line, the Yard Machines 389, 387, 378, and 370 models represent the company's commitment to combining advanced technologies with practical features.

Starting with the Yard Machines 389, this model is engineered for durability and performance. It typically comes with a powerful engine that offers ample cutting power, making it ideal for tackling medium to large-sized lawns. The 389 features an adjustable cutting height that allows users to customize their mowing experience according to grass type and desired lawn aesthetics. Additionally, its large grass bag capacity reduces the frequency of emptying, making the mowing task more efficient.

The Yard Machines 387 offers similar performance with slightly varied specifications. It is designed for ease of use, boasting a lightweight frame and ergonomic handles, making it manageable for users of all ages. The 387’s engine is optimized for fuel efficiency, which not only saves money but also reduces the environmental impact. With its sturdy construction, the model is built to withstand the rigors of regular use, ensuring longevity.

Moving to the Yard Machines 378, this model is particularly noted for its enhanced maneuverability, making it suitable for variable terrains, including uneven yards and tight corners. It features a self-propelled option, allowing users to confidently navigate different landscapes without excessive effort. The 378 often includes a mulching capability, permitting grass clippings to be finely shredded and recycled back into the lawn for added nutrients.

Finally, the Yard Machines 370 is the entry-level model in this series, yet it doesn't compromise on performance. It is perfect for homeowners with small to medium lawns. Easy to handle, it often incorporates a straightforward recoil start system, making it user-friendly for those who may be new to lawn maintenance. The compact design further enhances its storage capabilities, appealing to those with limited garage or shed space.

In conclusion, the Yard Machines 389, 387, 378, and 370 models collectively showcase the brand’s dedication to quality and innovation in lawn care. With features designed for various user needs—from powerful engines to user-friendly designs—these mowers cater to a diverse range of customers looking to maintain their outdoor spaces efficiently.