MTD 440 Thru E459 manual Service and Making Adjustments

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SECTION 8: SERVICE AND MAKING ADJUSTMENTS

Blade Care

Periodically inspect the blade adapter and pulley for cracks, especially if you strike a foreign object. Replace when necessary.

WARNING: When removing the cutting blade for sharpening or replacement, protect hands by using heavy gloves or a thick rag to grasp the cutting blade.

•Disconnect spark plug wire from spark plug.

•Turn mower on its side making sure that the air filter and the carburetor are up.

To Remove Blade

•Remove the bolt and bell washer that hold the blade-pulley assembly to the engine crankshaft. See Figure 20. Remove the assembly from the crankshaft.

•Remove the two bolts and lock nuts from the blade assembly.

•Remove the blade from the blade adapter and pulley.

To Replace Blade:

•Before reinstalling the blade-pulley assembly to the unit, lubricate the engine crankshaft and the inner surface of the blade adapter with light oil or engine oil.

•Also lubricate the bolt holes, bolt and the inner surface of the nuts.

•Install the blade adapter on the pulley with the “star” away from the pulley. See Figure 20.

Lock Nut

Pulley

 

Assembly

Blade

Lock Nut

Adapter

 

 

Blade

Hex Bolt

 

 

Hex Bolt

Bell

Hex Bolt

Washer

 

Figure 20

•Place the new blade on the blade adapter with the side marked bottom (has a part number) facing away from the adapter.

•Secure the blade to the assembly with two hex bolts and lock nuts. Tighten the hex bolts to the recommended torque. Refer to ‘Blade Mounting Torque’ section below.

•Install the blade assembly on the engine crankshaft. Secure with the hex bolt and bell washer (cupped side of washer to blade) and tighten to the recommended torque. Refer to ‘Blade Mounting Torque’ section below.

IMPORTANT: The bolt used to secure the blade to the engine is specially heat-treated. Do not substitute. To order replacement bolt, refer to the parts list in the back of this manual.

WARNING: To ensure safe operation of your unit, all nuts and bolts must be checked periodically for correct tightness.

To Sharpen Blade:

•The blade can be sharpened with a file or on a grinding wheel. Do not attempt to sharpen the blade while it is still on the mower.

•Follow the original angle of grind as a guide. Make

sure that each cutting edge receives an equal amount of grinding to prevent an unbalanced blade.

An unbalanced blade will cause excessive vibration when rotating at high speeds, may cause damage to the mower and could break, and may causing personal injury. Test the blade by balancing it on a round shaft screwdriver or a blade balancer.

•If the blade is not balanced, remove metal from the heavy side until it balances evenly.

Blade Mounting Torque:

Blade adapter bolts: 120 in.lbs. minimum, 150 in.lbs. maximum.

Center bolt: 450 in.lbs. minimum, 600 in.lbs. maximum.

Battery Pack Replacement

(Electric Start Units Only)

Remove the battery pack from the handle panel for replacement only. Do not separate the batteries for any reason. Dispose of batteries properly.

WARNING: Batteries contain sulfuric acid which may cause burns. Do not short circuit or mutilate batteries in any way. Do not put batteries in fire as these may burst or release toxic materials.

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Contents Operator’s Manual Table of Contents Finding Model NumberCalling Customer Support General Operation Important Safe Operation PracticesChildren ServiceSlope Operation Do notPage Slope Gauge Removing Unit From Carton Disconnecting Spark PlugUnpacking Assembling Your Lawn MowerAssemble soft grass bag as follows Grass Catcher AssemblyAttaching Starter Rope Soft Grass BAGParts for Hardtop Grass Bag Hardtop Grass BAGAttaching Chute Deflector Attaching Grass CatcherRemoving the Grass Catcher Optional Chute DeflectorKnow Your Lawn Mower Before Starting Mower Charging the BatteryOperating Your Lawn Mower Gas And Oil Fill-UpStopping Engine Using Your Lawn MowerAdjusting Cutting Height Starting EngineLubrication Cleaning MowerEngine Maintenance Maintaining Your Lawn MowerService and Making Adjustments Adjusting Drive Clutch Control In-line Fuse Electric Start OnlyReplacing Drive Belt Adjusting Carburetor Adjusting Handle HeightOther Storage Of The BatteryMower EngineTROUBLE-SHOOTING Guide Parts List for Model 440 Thru E450 Series Models 440 Thru E450 Series 39 33 41 37 4419 2046 Ball Bearing 2631 914 Description Engine Shrouds MANUFACTURER’S Limited Warranty for

440 Thru E459 specifications

The MTD 440 through E459 series represents a significant advancement in the realm of mid-range tractors, tailored for both agricultural and industrial applications. This series encapsulates a blend of power, efficiency, and advanced technology, making it a preferred choice for farmers and professionals alike.

One of the standout features of the MTD 440 to E459 series is its robust engine performance. The series is equipped with a high-efficiency, four-stroke diesel engine that boasts increased torque and horsepower while maintaining excellent fuel economy. This powertrain is designed to handle demanding tasks, whether it's plowing, tilling, or moving heavy loads. The engines are also compliant with global emission standards, ensuring that they contribute to a cleaner environment.

In addition to its powerful engines, the series showcases advanced transmission options. The MTD tractors come with a choice of manual and hydraulic gear systems, providing operators with flexibility and control. The intuitive design of the gear shifting mechanism enhances ease of use, allowing for smooth transitions between gears, which is particularly beneficial during complex agricultural tasks.

The MTD 440 through E459 series also incorporates cutting-edge technologies that enhance user experience. One notable feature is the integrated smart display dashboard, which offers real-time monitoring of crucial parameters such as fuel levels, engine temperature, and diagnostic alerts. This allows operators to maintain optimal performance and address any issues before they escalate.

Comfort and ergonomics are also priorities in the design of this series. The spacious cabin provides excellent visibility and is equipped with adjustable seating, climate control, and noise-reducing features to ensure a pleasant working environment, even during long hours of operation. Additionally, the tractors come with user-friendly controls that are easily accessible, enabling operators to focus on their tasks without distraction.

The durability of the MTD 440 to E459 series cannot be overstated. Constructed with high-quality materials, these tractors are built to withstand harsh working conditions. Features such as reinforced chassis, improved suspension systems, and weather-resistant components contribute to their longevity and reliability in the field.

Safety is another critical aspect of the MTD series. These tractors come equipped with essential safety features such as roll-over protective structures (ROPS), multiple braking systems, and well-designed lighting for improved visibility during nighttime operations.

In summary, the MTD 440 through E459 series combines power, efficiency, and advanced technology to deliver an exceptional mid-range tractor solution. With its robust engine performance, versatile transmission options, user-friendly technology, comfort features, and solid safety measures, it stands out as a reliable choice for those in need of a dependable agricultural or industrial machine.
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