Service, Maintaining Your Tiller | MTD 410 Thru 420 instruction

To adjust the tension on the belt, refer to final clutch adjustment in Assembly Instructions.

Carburetor Adjustment

WARNING: If any adjustments are made to the engine while the engine is running, (e.g. carburetor), disengage all clutches and tines. Keep clear of all moving parts.

Be careful of heated surfaces and muffler.

Never make unnecessary adjustments. The factory settings are correct for most applications. If adjustments are needed, refer to the separate engine manual packed with your tiller.

SECTION 6: SERVICE

Transmission—The transmission is pre-lubricated and sealed at the factory. It requires no checking unless the transmission is disassembled. To fill with grease, lay the right half of the transmission on its side. Add 22 ounces of Benalene 920 grease. Assemble the left half to it. This grease can be obtained at your nearest authorized dealer. Order part number 737-0300.

Clutch Handle—Lubricate the pivot point on the clutch handle and the cable at least once a season with light oil. The control must operate freely in both directions.

Pivot Points—Lubricate all pivot points and linkages at least once a season with light oil.

Tine Shafts—Remove tine assemblies and lubricate the tine shafts at least once a season.

Wheel Shafts—Remove wheel assemblies and lubricate the axle shafts at least once a season.

SECTION 7: MAINTAINING YOUR TILLER

WARNING: Disconnect the spark plug wire and ground it against the engine before performing any repairs or maintenance.

Engine

Refer to the separate engine manual for 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 ten hours under normal conditions. Clean every hour 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.

IMPORTANT: Never run your engine without air cleaner completely assembled.

The spark plug should be cleaned and the gap reset every 25 hours of engine operation. Spark plug replacement is recommended at the start of each tiller season; check engine manual for correct plug type and gap specification.

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 dirt and combustible debris from muffler area.

Cleaning The Tine Area

Clean the underside of the tine shield after each use. The dirt washes off the tines easier if rinsed off immediately instead of after it dries. Always towel dry the tiller afterwards and apply a light coat of oil or silicone to prevent rusting or water damage.

IMPORTANT: Never use a "pressure" washer to clean your tiller. Water can penetrate tight areas of the tiller and its chaincase and cause serious damage to the unit.

Tires

Recommended operating tire pressure is approximately 14 p.s.i. on 14 inch tires and 20 p.s.i. on 16 inch tires. (Check sidewall of tire for tire manufacturer’s recommended pressure). Maximum tire pressure under any circumstances is 30 p.s.i. Equal tire pressure should be maintained on both tires.

When installing a tire to the rim, be certain rim is clean and free of rust. Lubricate both the tire and rim generously. Never inflate to over 30 p.s.i. to seat beads.

WARNING: Excessive pressure (over 30 p.s.i.) when seating beads may cause tire/ rim assembly to burst with force sufficient to cause serious injury.

410 Thru 420 specifications

The MTD 410 through 420 models represent a significant advancement in outdoor power equipment, tailored for both amateur and professional gardeners. These machines are designed with user efficiency and comfort in mind, boasting a variety of features, technologies, and characteristics that enhance their performance and usability.

One of the standout features of the MTD 410 to 420 series is their powerful engines. Equipped with reliable four-stroke engines, these mowers provide ample power to tackle various terrains and vegetation types. The engines are designed to offer superior fuel efficiency, lower emissions, and reduced noise pollution, making them eco-friendly choices for environmentally conscious users.

The cutting technology in the MTD series is noteworthy. With adjustable cutting heights ranging from one to four inches, users can customize the mower's height based on the specific needs of their lawn or garden. The sharp, durable blades ensure a clean cut, promoting healthier grass growth and a neat appearance.

Ergonomics are a key focus in the design of the MTD 410 through 420. The models feature cushioned seats and adjustable handlebars, allowing for comfortable operation over extended periods. Additionally, the lightweight construction of these mowers ensures easy maneuverability and reduces operator fatigue, making it ideal for larger properties.

Another essential aspect of these models is their innovative technology. The MTD 410 to 420 are equipped with a self-propelling feature that helps adjust the mowing speed to match the user's pace, making cutting grass less strenuous. Furthermore, many of these mowers include a mulching capability, allowing clippings to be finely chopped and returned to the lawn as natural fertilizer, which aids in lawn health and reduces waste.

Durability and maintenance ease are also prioritized in these models. The robust metal frames and high-quality components ensure longevity, while easily accessible parts simplify routine maintenance.

Overall, the MTD 410 through 420 series combines power, user comfort, and innovative technology to create a range of mowers that cater to both the casual gardener and the dedicated lawn care professional. Whether it’s for residential or commercial use, these models stand out for their performance and reliability in outdoor maintenance tasks.