Craftsman 580.676641 Operator's Manual page 21

Problem Correction
Pumphasfollowing
problems:
failure to produce pressure,
erratic pressure, chattering, loss
of pressure, low water volume.
Detergent fails to mix with spray.
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 siphoning tube is not
submerged.
2. Detergent filter is clogged.
3. Dirty in-line filter.
4. Nozzle is in high pressure
mode.
Engine speed is too slow.
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. Insert detergent siphoning tube
into detergent.
2. Clean or replace filter/detergent
siphoning tube.
3. See "Check In-Line Filter".
4. Push nozzle forward for low
pressure mode.
Engine runs good at no-load but Move throttle control to FAST
position. If engine still "bogs down",
"bogs" when load is added, contact Sears service facility.
1. Dirty air cleaner.
2. Out of fuel.
3. Stale fuel.
4. Spark plug wire not connected
to spark plug.
5. Bad spark plug,
6. Water in fuel.
Engine will not start; or starts
and runs rough.
7. Excessively rich fuel mixture.
8. Intake valve stuck open or
closed.
9. Engine has lost compression.
Out of fuel.
1. Clean or replace air cleaner.
2. Fill fuel tank.
3. Drain gas tank; fill with fresh
fuel.
4. Connect wire to spark plug.
5. Replace spark plug,
6. Drain gas tank; fill with fresh
fuel.
7. Contact Sears service facility.
8. Contact Sears service facility.
9. Contact Sears service facility.
Engine shuts down during Fill fuel tank.
operation.
Engine lacks power. Dirty air filter. Replace air filter.
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