SERVICE AND ADJUSTMENTS

ENGINE SPEED

A

CAUTION: ENGINE SPEED

WAS PROPERLY AD-

 

 

JUSTED AT THE FACTORY AND SHOULD RE-

 

 

QUIRE NO ADDITIONAL ADJUSTMENT. DO NOT

 

 

ATTEMPT TO CHANGE ENGINE SPEED. IF YOU

 

 

BELIEVE THE ENGINE IS RUNNING TOO FAST OR

 

 

TOO SLOW, TAKE YOUR PRESSURE WASHER TO

 

 

SEARS AUTHORIZED SERVICE CENTER FOR RE-

FEELER

 

PAIR AND ADJUSTMENT,

CHANGING ENGINE

ALLEN

GOVERNED SPEED WILL VOID ENGINE WAR-

GAUGE

 

RANTY.

',LOOSEN

 

Your pressure washer runs at a constant speed. This constant operating speed is maintained by a mechanical, flyweight type, fixed speed governor. DO NOT try to adjust the governed speed setting for the following reasons:

,,High engine speeds are dangerous and increase the risk of personal injury or damage to equipment.

Low engine speeds impose a heavy load on the engine when sufficient engine power is not available and may shorten engine life.

JAM NUT

FIG. 27

ADJUSTING VALVE CLEARANCE

After the first 50 hours of operation, you should adjust the valve clearance in the engine.

When adjusting valve clearance, engine should be at room _.mperature and piston should be at Top Dead Center

,I'DC)of compression stroke (both valves closed). Correct learance is 0.05-0.1mm. Adjust valve clearance as fol- ws:

=Loosen the rocker arm jam nut. Use an allen wrench to turn the pivot ball stud while checking clearance between the rocker arm and the valve stem with a feeler

gauge (Fig. 27).

,,When valve clearance is correct, hold pivot ball stud with allen wrench and tighten rocker arm jam nut with crows foot. Tighten jam nut to 65-85 inch-pounds

torque. After tightening jam nut, recheck valve clear- ance to make sure it did not change (Fig. 28).

Tighten jam nut to 65,.85 inch-pounds

_7-10 N-m).

FIG. 28

NOZZLE MAINTENANCE

If the nozzle becomes restricted or clogged with foreign materials, such as dirt, excessive pump pressure may develop. A partially clogged nozzle can cause a pulsing sensation during use. This generally is not a pump related problem, but rather a clogged or partially restricted nozzle.

If the nozzle becomes clogged or partially restricted, imme- diately clean the nozzle with the kit included with your pressure washer by following these instructions:

•Shut off the engine and turn off the water supply.

=Separate the wand from the gun.

,,Remove nozzle from the end of the wand using a 2ram or 5/64 allen wrench (like the one included in the kit).

Use the wire included in the kit (Fig. 29) or a small paper clip to free the foreign materials clogging or restricting the nozzle.

Insert wire intonozzle andturn back and forth to clearobstruction

FIG. 29

17

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Craftsman 580.751651 Service and Adjustments, Engine Speed, Feeler, Adjusting Valve Clearance, Nozzle Maintenance
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580.751651 specifications

The Craftsman 580.751651 is a versatile and robust outdoor power equipment product designed to meet various landscaping needs. This lawnmower exemplifies a dedication to quality and user-friendly features, making it a popular choice among homeowners and gardening enthusiasts alike.

One of the main features of the Craftsman 580.751651 is its powerful engine, which provides ample horsepower for efficient mowing. The reliable engine allows for smooth operation, even in challenging conditions. Coupled with a spacious cutting deck, this mower allows users to cover large areas quickly while ensuring an even finish on their lawns.

Another notable characteristic of the Craftsman 580.751651 is its adjustable cutting height. Users can easily customize the mowing height to suit their lawn's specific needs, whether aiming for a precise trim or a higher cut during dryer seasons. This flexibility ensures that your grass remains healthy and well-maintained throughout the mowing season.

The Craftsman 580.751651 also incorporates user-friendly technologies. One such feature is its easy-start mechanism, which eliminates the frustration often associated with starting outdoor equipment. With a few simple steps, users can have the mower ready to go, making it accessible for a wider range of users, from novices to experienced operators.

Durability is a key characteristic of the Craftsman 580.751651. Its sturdy construction and high-quality materials contribute to its longevity, allowing it to withstand the rigors of frequent use. Additionally, this mower is designed with a maintenance-friendly philosophy in mind. Components like air filters and spark plugs are easily accessible, which simplifies routine upkeep and ensures that the equipment runs at peak performance for years to come.

Maneuverability is another aspect where the Craftsman 580.751651 shines. With its user-friendly controls and responsive handling, users can navigate around obstacles with ease. The mower's design incorporates comfortable grips and ergonomics, preventing fatigue during prolonged use.

In conclusion, the Craftsman 580.751651 combines power, versatility, and user-friendly features. With its reliable engine, adjustable cutting height, durable construction, and easy maintenance, this lawnmower proves to be an essential tool for any homeowner looking to maintain a lush, healthy lawn. Whether tackling a small garden or a sprawling yard, the Craftsman 580.751651 delivers exceptional performance and reliability, making it a worthwhile investment for outdoor enthusiasts.
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