Craftsman 580.752540 Operator's Manual page 22

Problem Cause
Pump has following problems:
failure to producepressure,
erratic pressure, chattering, loss
of pressure, low water volume.
Detergent fails to mix with spray.
Engine runsgood at no-load but
"bogs" when load is added.
Enginewill not start; or startsand
runs rough.
1. Water inlet is blocked.
2. inadequatewater supply.
3. inlet hose is kinked or leaking.
4. Clogged inlet hose strainer.
5. Water supply is over IO0°F.
6. High pressure hose is blocked or
leaks.
7. Gun leaks.
8. Spray tip is obstructed.
9. Pump is faulty.
1. Detergentsiphoning tube is not
submerged.
2. Detergentsiphoning tube/filter is
clogged or cracked.
3. High pressure spray tip installed.
Engine speed is too slow.
1. Throttle lever in "Stop" position.
2. Fuel valve in "Off" position.
3. Dirty air cleaner.
4. Out of fuel.
5. Stale fuel.
6. Spark plug wire not connected to
spark plug.
7. Bad spark plug.
8. Water in fuel.
9. Overchoking.
10. Excessively rich fuel mixture.
Correction
1. Cieariniet.
2. Provide adequatewater flow.
i
i
i3. Straighten inlet hose, patch leak.
4. Checkand clean inlet hose strainer.
5. Provide cooler water supply.
6. Clear blocks in high pressure hose or
replace hose.
7. Replace gun.
8. Cleanspray tip.
9. Contact Sears service facility.
1. insert detergent siphoning tube into
detergent.
2. Cleanor replacefilter/detergent
siphoning tube.
3. Replace high pressure spray tip with
black spray tip.
Move throttle control to FAST position, if
engine still "bogs down", contact Sears
service facility.
1. Move throttle lever to "Fast" position.
2. Move fuel valve to "On" position.
3. Cleanor replaceair cleaner.
4. Fill fuel tank.
5. Drain fuel tank; fill with fresh fuel.
6. Connect wire to spark plug.
7. Replace spark plug.
i
i8. Drain fuel tank; fill with fresh fuel.
9. Open choke fully and crank engine.
10. Contact Sears service facility.
Engine shutsdown during Out of fuel. Fill fuel tank.
operation.
Engine Jackspower. Dirty air filter.
Choke is opened too soon.
Engine "hunts" or falters.
Replace air filter.
Move choke to halfway position until engine
runs smoothly.
22