Yard Machines 387, 389, 370, 378 manual Lubrication, Maintenance, Engine

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SECTION 8: LUBRICATION

WARNING: Always stop engine and disconnect spark plug wire before cleaning, lubricating or doing any kind of work on the lawn mower.

Blade Control Handle

LUBRICATE

Wheels

Engine

SEE ENGINE MANUAL

Figure 9

Blade Control: Lubricate the pivot points on the blade control handle and the brake cable at least once a season with light oil. See Figure 9. The blade control must operate freely in both directions.

Wheels: Lubricate the wheel at least once a season with light oil (or engine oil). Also, if the wheels are removed for any reason, lubricate the surface of the axle bolt and the inner surface of the wheel with light oil. See Figure 9.

Engine: Follow engine manual for lubrication instructions.

SECTION 9: MAINTENANCE

WARNING: Be sure to disconnect and ground the spark plug wire before performing any repairs or maintenance.

NOTE: When tipping the unit, empty the fuel tank and keep engine, spark plug side up. Never tip the mower more than 90 degrees and do not leave the mower tipped for any length of time. Oil can drain into the upper part of the engine causing a starting problem.

ENGINE

Refer to the separate engine manual for all engine maintenance instructions.

•Maintain engine oil as instructed in the separate engine manual packed with your unit. Read and follow instructions carefully.

•Service air cleaner every 25 hours under normal conditions. Clean every few hours under extremely dusty conditions. Poor engine performance and flooding usually indicates that the air cleaner should be serviced. To service the air cleaner, refer to the separate engine manual packed with your unit.

•The spark plug should be cleaned and the gap reset once a season. Spark plug replacement is recommended at the start of each mowing season; check engine manual for correct plug type and gap specifications.

•Clean the engine regularly with a cloth or brush. Keep the cooling system (blower housing area) clean to permit proper air circulation which is essential to engine performance and life. Be certain to remove all grass, dirt and combustible debris from muffler area.

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Contents Important Read Safety Rules and Instructions Carefully MTD Products INC. P.O. BOX 368022 CLEVELAND, OhioImportant Safe Operation Practices General OperationService Slope OperationDo not ChildrenSafety Labels Found On Lawn Mower Gaugeslope Finding Your Model Number Calling Customer SupportUnpacking Instructions Disconnect Spark Plug WireRemove Unit from Carton SET-UP Instructions Items Required for AssemblySET-UP Your Lawn Mower Tighten wing nuts Controls Blade Control HandleThrottle Control Recoil StarterCutting Height Adjustment Lever OperationEngine Controls GAS and OIL FILL-UPNeutral Adjustment Test Using Your Rotary MowerEach Time Before YOU Start Your Mower To Start Engine and Engage BladeEmptying a Full BAG of Grass Bagging Grass ClippingsMulching Grass Clippings Handle Height Adjustment AdjustmentsSide Discharging Grass Clippings Optional Throttle Control Adjustment Drive Clutch Control AdjustmentLubrication MaintenanceEngine Trouble Shooting Cutting Blade REMOVAL, Replacement and SharpeningDeck Shift Lever Cable Adjustment Models 380 389 Only Drive Belt Removal and Replacement Model 370 Series Small Baffle Blade Adapter Large Baffle Hex Head Screw Drive Belt Removal and Replacement Model 380 Series Six-Speed Direction but not the other. If the wheel Trouble Shooting Guide OFF-SEASON StorageFront Axle Assembly & Height Adjuster Models 370 thru†† Wheel Assembly Chart Description Model 380 thru 811-00185 710-1237 710-0871 Description Shroud Chart MANUFACTURER’S Limited Warranty for

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.
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