Troubleshooting - Craftsman 580.768350 Operator's Manual

Problem
Pump has following
problems: failure to
produce pressure,
erratic pressure,
chattering, loss of
pressure, low water
volume.
Detergent fails to mix
with spray.
Engine runs good at no-
load but "bogs" when
load is added.
Engine will not start; or
starts and runs rough.
Engine shuts down
during operation.
Engine lacks power.
Engine "hunts" or
falters.

TROUBLESHOOTING

Cause
1. Nozzle in low pressure mode.
2. Water inlet is blocked.
3. Inadequate water supply.
4. Inlet hose is kinked or leaking.
5. Clogged inlet hose strainer.
6. Water supply is over 100°F.
7. High pressure hose is blocked
or leaks.
8. Gun leaks.
9. Nozzle is obstructed.
10. Pump is faulty.
1. Detergent line is collapsed or
kinked.
2. Chemical tank filter is clogged.
3. In-line filter is dirty.
4. Nozzle is in high pressure
mode.
5. Dial-a-Cleaner™ knob is in off
position.
Engine speed is too slow.
1. Low oil level.
2. Dirty air cleaner.
3. Out of gasoline.
4. Stale gasoline.
5. Spark plug wire not connected
to spark plug.
6. Bad spark plug.
7. Water in gasoline.
8. Overchoking.
9. Excessively rich fuel mixture.
10. Intake valve stuck open or
closed.
11. Engine has lost compression.
1. Out of gasoline.
2. Low oil level.
Dirty air filter.
Choke is opened too soon.
Correction
1. Pull nozzle backward for high pressure
mode.
2. Clear inlet.
3. Provide adequate water flow.
4. Straighten inlet hose, patch leak.
5. Check and clean inlet hose strainer.
6. Provide cooler water supply.
7. Clear blocks in outlet hose.
8. Replace gun.
9. Clean nozzle.
10. Contact Sears service facility.
1. Repair or replace detergent line.
2. Replace tank.
3. See "Check In-Line Filter" on page 12.
4. Push nozzle forward for low pressure
mode.
5. Rotate knob for desired chemical.
Move throttle control to FAST position. If
engine still "bogs down", contact Sears
service facility.
1. Fill crankcase to proper level.
2. Clean or replace air cleaner.
3. Fill fuel tank.
4. Drain gas tank; fill with fresh fuel.
5. Connect wire to spark plug.
6. Replace spark plug.
7. Drain gas tank; fill with fresh fuel.
8. Open choke fully and crank engine.
9. Contact Sears service facility.
10. Contact Sears service facility.
11. Contact Sears service facility.
1. Fill fuel tank.
2. Fill crankcase to proper level.
Replace air filter.
Move choke to halfway position until
engine runs smoothly.
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