Troubleshooting - Craftsman 580.676640 Manuel D'utilisation

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.

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 siphoning tube is not
submerged.
2. Chemical filter is clogged.
3. Dirty in-line filter.
4. Nozzle is in high pressure
mode.
Engine speed is too slow.
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.
7. Excessively rich fuel mixture.
8. Intake valve stuck open or
closed.
9. Engine has lost compression.
Out of fuel.
Dirty air filter.
20
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. 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.
Move throttle control to FAST
position. If engine still "bogs down",
contact Sears service facility.
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.
Fill fuel tank.
Replace air filter.