Craftsman 580.752521 - Troubleshooting; Pump Problems; Detergent Mixing Issues; Engine Starting Problems

Problem
Pump has followingprobJems:
failure to producepressure,
erraticpressure,chattering,Joss
of pressure, Jowwater volume.
Detergentfails to mix with spray.
Enginewill not start;startsand
runsroughor shutsdown during
operation.
Enginelackspower.
Cause
1. Soap spray pattern nozzleis
selected.
2. Water inlet is blocked.
3. inadequatewater supply.
4. inlet hose is kinked or leaking.
5. Clogged inlet hosestrainer.
6. Water supply is over IO0°F.
7. High pressure hose is blocked or
leaks.
8. Gun leaks.
9. Selector nozzleis obstructed.
10. Pump is faulty.
1. Detergentsiphoning tube is not
submerged.
2. Detergentsiphoning tube/filter is
clogged or cracked.
3. High pressure spray pattern nozzle
is selected.
4. Detergentsiphoning check ball
stuck.
1. Engine rocker switch set to off (0 or
Off) position.
2. Dirty air cleaner.
3. Out of fuel.
4. Stalefuel.
5. Spark plug wire not connected to
spark plug.
6. Badspark plug.
7. Water in fuel.
8. Excessivelyrich fuel mixture.
Dirty air filter.
Correction
1. Select high pressurespray pattern nozzle
on selector nozzle.
2. Clearinlet.
3. Provideadequatewater flow.
4. Straighten inlet hose, patch leak.
5. Checkand clean inlet hose strainer.
6. Providecooler water supply.
7. Clearblocks in outlet hose.
8. Replacegun.
9. Cleannozzles in selector nozzle.
10. ContactSearsservice facility.
1. insert detergent siphoning tube into
detergent.
2. Cleanor replacefilter/detergent
siphoning tube.
3. Selectsoap spray pattern nozzleon
selector nozzle.
4. Freedetergent siphoning check ball.
1. Setengine rocker switch to on (I or On)
position.
2. Cleanor replaceair cleaner.
3. Fillfuel tank.
4. Drainfuel tank;fill with fresh fuel.
5. Connectwire to spark plug.
6. Replacesparkplug.
7. Drainfuel tank;fill with fresh fuel.
8. Contact local service facility.
Replaceair filter.
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