Craftsman 580.762012 - Troubleshooting; Pump Problems; Detergent Mixing Issues; Engine Starting;Rough Running

PROBLEM
Pump has following problems:
failure to produce pressure, or
erratic pressure, chattering, toss of
pressure, low water volume.
Detergentfailsto mixwith
spray,
1.
CAUSE
Nozzlein low pressuremode.
2. Water inlet is blocked.
3. Inadequate water supply.
4, Inlet hose is kinked or leaking.
5, Clogged water inlet screen,
6. Water supply is over 140°F.
7. Outlet hose is blocked,
8. Outlet hose leaks.
9. Gun leaks.
10. Nozzle is obstructed.
11. Pump is faulty,
1. Detergent line is not submerged
in detergent spray.
2. Chemical filter is clogged.
3. Nozzle is in high pressure mode.
CORRECTION
1. Pull nozzle backward for high
pressure mode.
2. Clear inlet.
3. Provide adequate water flow at
least 2.5 gpm,
4, Straighten inlet hose, patch leak.
5. Replace / clean water inlet screen.
6. Provide cooler water supply.
7. Clear blocks in outlet hose.
8. Replace outlet hose if leaking.
9. Replace o-ring or gun if necessary,
10. Clear nozzle.
11, Contact Sears Service Department,
1. Insert chemical line into detergent.
2. Clean or replace filter/detergent
line.
3. Push nozzle forward for
Engine runs good when not spraying
but dies when you begin to spray,
Enginewill not start;or starts
and runsrough.
Engine speed is too slow.
1. Dirty air cleaner
2. Out of gasoline.
3. Stale gasoline,
low pressure mode,
Contact Sears Service Department.
1. Clean or replaceair cleaner.
2. Fillfuel tank.
3. Draingastank;fill withfreshfuel.
4. Spark plug wire not connected
to spark plug,
5. Bad spark plug.
6. Water in gasoline.
7. Overchoking or flooded,
8. Excessively rich fuel mixture.
9. intake valve stuck open or closed.
10, Engine has lost compression,
Engine shuts down during
operation.
Engine lacks power.
1. Out of gasoline.
2. Air filter dirty
Dirty air filter.
4. Connect wire to spark plug.
5, Replace spark ptug.
6, Drain gas tank; fill withfresh fuel.
7. Set engine throttle control lever to
fast position, choke in run position.
8. Contact Sears Service Department.
9. Contact Sears Service Department.
10. Contact Sears Service Department.
1. Fill fuel tank.
2. Replace Air filter.
Replace air filter.
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