MTD 664G, 644E manual Augers, Belt Removal and Replacement, Auger Belts

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Augers

•The augers are secured to the spiral shaft with two shear bolts and hex lock nuts. If you hit a hard foreign object or ice jam, the snow thrower is designed so that the bolts may shear.

Refer to Figure 24.

•If the augers will not turn, check to see if the bolts have sheared. Replacement shear bolts and hex lock nuts have been provided with the snow thrower. When replacing bolts, spray an oil lubricant into shaft before inserting new bolts.

IMPORTANT: NEVER replace the auger shear bolts with standard hex bolts. Any damage to the auger gearbox or other components as a result of doing so will NOT be covered by your snow thrower’s warranty.

Belt Removal and Replacement

Auger Belts

NOTE: It is necessary to remove both belts in order to change either one (Model 614E has only one auger belt). If changing just one belt, be certain to check the condition of the other belt.

•Remove the plastic belt cover on the front of the engine by removing the two self-tapping screws. See Figure 27.

•Drain the gasoline from the snow thrower, or place a piece of plastic under the gas cap.

•Tip the snow thrower up and forward so that it rests on the auger housing.

Self-Tapping

Screw

Belt Cover

Figure 27

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

•Roll the front and rear auger belts off the engine pulley. See Figure 28.

Auger

Drive Belt

 

Belt

Drive

 

Pulley

Idler

 

Pulley

 

 

Engine

 

Pulley

 

Idler

 

Pulley

Figure 28

•Unhook the idler spring from the hex bolt on the auger housing. See Figure 29.

Friction Wheel

Pin Assembly

Support

Frame

Bracket

 

 

Gear

Auger Belt

Shaft

Auger

Idler

Auger

Support Bracket

Pulley

Spring

 

Spring

Housing

 

 

 

 

Figure 29

•Unhook the support bracket spring from the frame.

NOTE: It may be necessary to loosen the six hex nuts that fasten the frame to the auger housing to aid in belt removal.

•Lift the rear auger belt from the auger pulley, and slip belt between the support bracket and the auger pulley. Repeat this step to remove the front auger belt. See Figure 29.

•Reassemble auger drive belt(s) by following instructions in reverse order.

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Contents Operator’s Manual Table of Contents Training Important Safe Operation PracticesMaintenance and Storage Contents of Hardware Pack Boxed Units Crate Assembling Your Snow ThrowerUnpacking Loose Parts Boxed UnitAssembly Crated Unit Attaching Handle AssemblyAttaching Shift Rod Hardware D Attaching Clutch Cables Attaching the Chute Assembly Hardware FAttaching The Chute Directional Control Traction Control Know Your Snow ThrowerShift Lever Auger Drive ControlOperating Your Snow Thrower Recoil Starter To Stop EngineTo Engage Drive To Engage AugersDrift Cutters If Equipped Chute Clean-Out ToolOperating Tips Traction Control and Shift Lever Making AdjustmentsSkid Shoes Chute AssemblyAdjusting Shift Rod Auger ControlDrive Wheels Maintaining Your Snow ThrowerLubrication Engine Servicing Your Snow ThrowerShave Plate and Skid Shoes Augers Belt Removal and ReplacementAuger Belts Off-Season Storage Friction Wheel RubberDrive Belt Trouble Possible Causes Corrective Action Trouble Shooting GuideModels 614E, 644E, & 664G Part Description Models 614E, 644E, & 664GModels 614E, 644E, & 664G Jam Lock Nut 3/8-24 Compression Spring 736-0105 Drive Clutch Cable Auger Clutch Wheels Models 614E, 644E, & 664G Models 614E 1615 Models 644E & 664GSize Page MANUFACTURER’S Limited Warranty for

664G, 644E specifications

The MTD 644E and 664G tractors represent a significant leap in agricultural technology and efficiency, designed for diverse farming applications. Known for their robust build and advanced features, these models cater to both small and large-scale agricultural operations.

Starting with the MTD 644E, it is powered by a state-of-the-art diesel engine, providing a reliable performance that enhances productivity. The engine delivers impressive horsepower, allowing farmers to tackle various tasks effortlessly. Its fuel efficiency is a standout feature, ensuring reduced operational costs while still meeting demanding farm requirements. The 644E also features a compact design, making it highly maneuverable in tight spaces while maintaining a sturdy construction that guarantees durability in rugged conditions.

On the other hand, the MTD 664G offers slightly higher horsepower, making it suitable for more intensive agricultural work. This model is equipped with a more advanced engine management system that optimizes performance and fuel consumption, ensuring that farmers can work longer hours without frequent refueling. The 664G’s larger frame accommodates additional implements, expanding its versatility for tasks including plowing, tilling, and harvesting.

Both models are built with user-friendly controls, allowing operators to focus on their tasks without unnecessary distractions. The ergonomic seating and intuitive interface are designed to minimize fatigue during long working days. Additionally, these tractors come with a range of safety features, including effective braking systems and visibility enhancements that prioritize operator safety.

Technologically, both the 644E and 664G incorporate precision farming features that allow for better resource management. Implement compatibility enables seamless integration with various agricultural tools, giving users flexibility in their operations. Regular software updates ensure that the tractors remain at the forefront of agricultural technology, further enhancing performance and efficiency.

In summary, the MTD 644E and 664G tractors are tailored for modern farmers seeking reliability and efficiency. Their powerful engines, compact designs, and cutting-edge technology make them indispensable tools on any farm, capable of handling a multitude of agricultural tasks with ease and precision.
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