Troubleshooting - Craftsman 580.752700 Owner's Manual

Problem
Pump has following
problems: failure t o produce
pressure, erratic pressure,
chattering, l oss of pressure,
low water volume.
Detergentfalls to minxwith
spray.
Engine tuns good at noqoad
but "bogs" when load is
added.
Engine witl not start; or
starts and runs rough.
Cause
1. Low pressure spray tip
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. Spray tip is obstructed.
10. Pump is faulty.
1. Chemical shut-off valves are in
the "Off" position.
2. In=line filter is dirty.
3. High pressure spray tip
installed.
Engine speed is too slow.
1. Dirty air cleaner.
2. Out of gasoline.
3. Stale gasoline.
4. Spark plug wire not connected
to spark plug.
5. Bad spark plug.
6. Water in gasoline.
7. Overchoking.
8. Excessively rich fuel mixture.
Correction
1. Replace spray tip with high pressure
spray tip.
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 high pressure hose
or replace hose.
8. Replace gun.
9. Clean spray tip.
10. Contact Sears service facility.
1. Rotate chemical shut=off valve on
desired chemical reservoir to "On"
position.
2. See "Check In-Line Filter".
3. Replace spray tip with low pressure
spray tip.
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. Open choke fully and crank engine.
8. Contact Sears service facility.
Engine shuts down during
operation. Out of gasoline. Fill fuel tank.
Engine lacks power. Dirty air filter.
Choke is opened too soon.
Engine "hunts" or falters.
Replace air filter.
Move choke to halfway position until
engine runs smoothly.
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