Troubleshooting - Craftsman 580.752420 Operator's Manual

Problem Cause
Pump has following problems:
failure to produce pressure,
erratic pressure, chattering, loss
of pressure, low water volume.
Detergent fails to mix with spray.
1. Low pressure nozzle installed.
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 or
cracked,
3. Dirty in-line filter,
4. High pressure nozzle installed,
Correction
1. Replace nozzle with high
pressure nozzle.
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. Replace nozzle with low
pressure nozzle,
Engine runs good at no-load but Engine speed is too slow. Move throttle control to FAST
position, If engine still "bogs down",
"bogs" when load is added, contact Sears service facility,
Engine will not start; or starts
and runs rough.
1. Low oil level,
2. Dirty air cleaner,
3. Out of fuel,
4. Stale fuel,
5. Spark plug wire not connected
to spark plug.
6. Bad spark plug.
7. Water in fuel,
8. Overchoking.
9. Excessively rich fuel mixture, 9.
Engine shuts down during Out of fuel, Fill
operation.
Engine lacks power. Dirty air filter,
Choke is opened too soon,
Engine "hunts" or falters.
1. Fill crankcase to proper level.
2. Clean or replace air cleaner,
3. Fill fuel tank,
4. Drain fuel tank; fill with fresh
fuel,
5. Connect wire to spark plug,
6. Replace spark plug.
7. Drain fuel tank; fill with fresh
fuel,
8. Open choke fully and crank
engine,
Contact Sears service facility,
fuel tank,
Replace air filter,
Move choke to halfway position until
engine runs smoothly,
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