Troubleshooting - Craftsman 580.7471 Owner's Manual

TROUBLESHOOTING
CAUSE CORRECTION
PROBLEM
Pump has the following problems: 1_
failure to produce pressure, erratic 2o
pressure, chattering, loss of pressure, 3.
low water volume. 4.
5.
6.
7.
8.
9.
10.
11.
Detergent fails to mix with spray,
Engine runs good at no-load but "bogs
Engine will not start; or starts t,
and runs rough 2
Engine shuts down during operation
Engine lacks power,.
Engine "hunts" or falters_
Low regolator pressure
Water inlet is blocked.
Inadequate water supply
inlet hose is kinked or leaking
Clogged inlet hose strainer.
Detergent line is not submerged°
Water supply is over 140°E,
Outlet hose is blocked or leaks,
Gun leaks,
Nozzle is obstructed
Pump is faulty
1,, Detergent line is not submerged.,
2. Chemical filter is clogged,
3,, Nozzle is in high pressure setting.
Engine speed is too slow.
Dirty air cleaner
Out of gasoline.
3 Stale gasoline.
4 Spark plug wire not connected
to spark plug.
5. Bad spark plug,
6o Water in gasoline,
7, Overchoking.
8 Excessively rich fuel mixture.
9, Intake vatve stuck open or closed,,
10. Engine has lost compression_
1. Out of gasoline,
2, Low oil bevel,
Dirty air filter.
I, Choke is opened too soon.
2 Carburetor is running too rich
or too lean.
1. Adjust regulater to desired setting_
2. Clear inlet
3. Provide adequate water flowo
4. Straighten inlet hose, patch leak.
5. Check and clean Inlet hose strainer
6. Submerge detergent line,
7, Provide cooler water supply.
8. Clear blocks in outlet hose_
9, Replace gun,
l& Clear nozzle.
11. Contact Sears Service Department
t, Insert chemical line into detergent,.
2, Clean or replace filter/detergent line,
3. Set nozzle to low pressure.
Contact Sears Service Department,,
1. Clean or replace air' cleaner°
2. Fill fuel tank,.
3. Drain gas tank; fill with fresh fuel
4,, Connect wire to spark ptug
5, Replace spark plugo
6, Drain gas tank; fill with fresh fuel
7, Open choke fully and crank engine.
8, Contact Sears Service Department.
9 Contact Sears Service Department_
10, Contact Sears Service Department,
1_ Fill fuel tank
2, Fill crankcase to proper level.
Replace air filter.
t. Move choke to halfway position until
engine runs smoothly,
2. Adjust carburetor,,
]4