SERVICE AND ADJUSTMENTS
ENGINE SPEED
A | CAUTION: ENGINE SPEED | WAS PROPERLY AD- |
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| JUSTED AT THE FACTORY AND SHOULD RE- |
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| QUIRE NO ADDITIONAL ADJUSTMENT. DO NOT |
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| ATTEMPT TO CHANGE ENGINE SPEED. IF YOU |
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| BELIEVE THE ENGINE IS RUNNING TOO FAST OR |
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| TOO SLOW, TAKE YOUR PRESSURE WASHER TO |
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| SEARS AUTHORIZED SERVICE CENTER FOR RE- | FEELER | |
| PAIR AND ADJUSTMENT, | CHANGING ENGINE | ALLEN |
GOVERNED SPEED WILL VOID ENGINE WAR- | GAUGE |
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RANTY. | ',LOOSEN |
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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
=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
torque. After tightening jam nut, recheck valve clear- ance to make sure it did not change (Fig. 28).
Tighten jam nut to 65,.85
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
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