Cub Cadet 721E manual Maintaining Your Snow Thrower, Replacing Belt, Replacing Shave Plate, Engine

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SECTION 6: MAINTAINING YOUR SNOW THROWER

WARNING: Before servicing, repairing, or inspecting, disengage all clutch levers and stop engine. Wait until all moving parts have come to a complete stop. Disconnect spark plug wire and ground it against the engine to prevent unintended starting.

Replacing Belt

•Remove the belt cover by removing five hex screws. See Figure 12.

Hex

Screw

Hex Screw

Belt Cover

Figure 12

•Pull up on the idler pulley and slip the belt off the engine pulley.

•Push down on the idler pulley and slip the belt off the auger pulley.

•Reassemble new belt. See Figure 13.

•Reinstall the belt cover.

Replacing Shave Plate

The shave plate is attached to the bottom of the auger housing and is subject to wear. It should be checked periodically. There are two wearing edges and the shave plate can be reversed. See Figure 14.

•Remove the four carriage bolts and hex lock nuts which attach it to the snow thrower housing.

•Install new shave plate, making sure the heads of the carriage bolts are on the inside of the housing.

•Adjust the shave plate according to instructions on page 9. Tighten securely.

Shave

Plate

Remove these hardware

Figure 14

Engine

•Refer to the separate engine manual for all engine maintenance procedures.

•Check engine and snow thrower frequently for loose hardware, and tighten as needed.

Auger

Pulley

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Lubrication

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Lubricate pivot points on the control handle and the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

extension spring at the end of the clutch cable with

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Idler Pulley

 

a light oil once every season and before storage of

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

the snow thrower at the end of the season.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Lubricate the flange keepers on the chute crank

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

once a season with a light oil making sure the crank

 

 

 

 

 

 

 

 

 

 

 

 

Engine

 

rod moves freely. Remove bolts holding the shroud

 

 

 

 

 

 

 

 

 

 

 

 

Pulley

 

to the housing, and lift shroud to access the chute

 

 

 

 

 

 

 

 

 

 

 

 

 

crank bracket.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Drive

Belt

Figure 13

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Page 9 Page 11
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Page 9 Page 11
Contents Operator’s Manual Table of Contents Training Important Safe Operation PracticesPreparation Maintenance And Storage Your ResponsibilityAssembling Your Snow Thrower Know Your Snow Thrower Assembling Discharge ChuteGas and Oil Fill-Up Operating Your Snow ThrowerBefore Starting To Start EngineOperating the Snow Thrower To Stop EngineOperating Tips Belt Tension Shave PlateCarburetor Replacing Shave Plate Maintaining Your Snow ThrowerReplacing Belt EngineTroubleshooting Guide Problem Cause RemedyParts List for Model 721E Model 721E Ref. No Part DescriptionRef. No Description Carriage Screw 5/16-18 x MANUFACTURER’S Limited Warranty for

721E specifications

The Cub Cadet 721E is a powerful and reliable snow thrower designed to tackle harsh winter conditions with ease. Known for its robust construction and user-friendly features, the 721E is part of Cub Cadet’s exceptional lineup of snow removal equipment.

At the heart of the 721E is its dependable 2-stage system, which efficiently displaces snow with remarkable speed and effectiveness. The first stage consists of an intake auger that gathers the snow, while the second stage propels it out of the chute, ensuring maximum clearance in minimal time. The 721E features a 21-inch clearing width, making it ideal for handling snow in residential driveways and sidewalks.

One of the standout features of the Cub Cadet 721E is its powerful 208cc OHV engine, providing ample power to tackle even the heaviest snowfalls. This engine ensures reliable starts, thanks to the electric start option, making winter mornings a little easier for users. The machine’s friction disk drive system allows for easy speed adjustments and smooth operation over varying terrains, providing flexibility for users.

The 721E is equipped with an adjustable chute, allowing operators to change the direction of snow discharge with ease. The chute rotation lever can be operated from the control panel, enabling quick adjustments without leaving the operator's station. Additionally, the 8-inch impeller works in tandem with the chute system, facilitating an impressive throwing distance which can reach up to 30 feet.

Safety and comfort have also been prioritized in the design of the 721E. The unit features ergonomic handles with a soft-touch grip, enhancing operator comfort during prolonged use. It also integrates a headlight to illuminate the path ahead in low-light conditions, ensuring visibility during early morning or evening snow clearing sessions.

Durability is another hallmark of the Cub Cadet 721E. Its heavy-duty frame and high-impact plastic housing withstand the rigors of winter weather, while the reinforced steel auger augments its longevity. With features such as adjustable skid shoes and a powder-coated finish, this snow thrower is built to last through multiple winters.

With its combination of performance, ease of use, and durable construction, the Cub Cadet 721E is an excellent choice for homeowners seeking an effective snow removal solution. Whether facing light flurries or heavy blizzards, this snow thrower is equipped to make winter maintenance a straightforward task.
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