spider fails completely, you will experience a loss of power.

any manner, as a blow will cause permanent

,_ WARNING: Never hit the engine shaft in damage to the engine or the pump.

Follow the instructions carefully as the alignment of the couplings is critical.

•Disconnect the spark plug wire from the spark plug, and keep it away from the spark plug.

•Using a 1/2 inch wrench, remove three nuts and lock washers which secure the pump to the coupling shield. Two nuts are at the bottom corners and one is in the top center. See Figure

17.Remove the pump.

•Remove the nylon spider insert from the coupling and inspectfor wear. Replace if necessary.

•Inspect the engine coupling half jaws for signs of wear. Replace if necessary.

Coupling Shield

Rear Coupling

\

Support Bracket

 

Lock

 

Washer

 

Hex

 

Nut

 

?p

Coupling

1

Half

ock

 

Washer

Figure 17

To replace engine coupling half: Rotate the engine by pulling starter handle until engine coupling half set screw is at bottom. Loosen set screw using 1/8 inch allen wrench. Slide coupling half off engine shaft. See Figure 17.

Install new coupling half on engine shaft making sure to align key way in coupling half with key in the engine shaft.

Slide coupler half along engine shaft until the end of the shaft is flush with the inner portion of the coupling half. (There must be space

between end of the engine support bracket and the coupling half.) Apply LoctiteTM to threads of set screw and torque to 78 inch-pounds.

•Inspect the pump coupling half jaws for signs of wear. Replace ifnecessary.

To replace pump coupling half: Loosen set screw using 1/8 inch alien wrench. Slide coupling half off pump shaft.

Install new coupling half on pump shaft making sure to align key way in couplinghalf with key in pump shaft. Rotate coupling half untilset screw faces down. Do not tighten set screw now.

•Install new spider inserton to the engine coupling half.

•Align pump coupling half with nylon "spider" by rotating engine using starter handle.

Slide coupling half intoplace while guidingthree mounting bolts through holes in pump support bracket.

Note: The pump couplinghaff can be rotated by hand to aid in alignment. If the twoparts are not aligned

nght, the unit will not operate properly and damage could occur.

•Secure with nuts and washers removed earlier.

•Set .035 to .060 inch clearance between the nylon "spider" and the engine coupling half by sliding a matchbox cover between the nylon "spider" and the engine coupling half and moving pump coupling half as needed. See Figure 18.

•Apply Loctite TM to threads of set screw. Tighten set screw to torque 78 inch-lbs. This should secure the pump coupling half.

Reattach spark plug wire to spark plug.

PUMP

s,t4

Clearance __lves

Figure lg

16

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Image 16
Craftsman 247.79452 owner manual Lock, Washer, Hex, Nut, Secure with nuts and washers removed earlier
Page 15 Page 17

247.79452 specifications

The Craftsman 247.79452 is a versatile and efficient snow blower designed to tackle the toughest winter conditions. It is an ideal choice for homeowners looking to maintain their driveways, sidewalks, and outdoor spaces free from heavy snowfall. This powerful machine blends user-friendly features with advanced technology to provide a reliable snow-clearing solution.

One of the standout features of the Craftsman 247.79452 is its robust 24-inch clearing width, allowing users to quickly and effectively clear large areas with each pass. The 208cc engine offers impressive power, enabling it to handle wet, heavy snow with ease, making it suitable for a variety of snowfall conditions. The electric start technology further enhances convenience, allowing users to start the machine effortlessly with the push of a button, sparing them from the hassle of pulling cords in cold weather.

The snow blower is equipped with a 2-stage system that efficiently lifts snow and discharges it through a chute. The adjustable chute allows for a 180-degree rotation, giving users the flexibility to direct snow away from driveways and pathways, preventing unnecessary buildup. This feature is particularly beneficial for homeowners with large driveways or those living in areas that receive significant snowfall.

Another notable characteristic is its self-propelled capability, which helps users navigate through deep snow without excessive effort. The Craftsman 247.79452 offers multiple speed settings, allowing for both forward and reverse motion, making it easier to maneuver in tight spaces and around obstacles.

Durability is a key aspect of the Craftsman brand, and the 247.79452 is no exception. Built with high-quality materials, this snow blower is designed to withstand the rigors of winter use while providing long-lasting performance. The heavy-duty auger and impeller are engineered for optimal snow clearing, minimizing the risk of clogging even in challenging conditions.

In conclusion, the Craftsman 247.79452 snow blower combines power, convenience, and durability to make snow removal a much simpler task. Its innovative features, such as the electric start, self-propelled capability, and adjustable chute, provide users with a reliable instrument for managing winter storms. With the Craftsman 247.79452 in your arsenal, you can confidently tackle whatever Mother Nature throws your way.
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