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Problem Cause
Pumphas following problems:failure
to producepressure, erratic pressure,
chattering,loss of pressure, low water
voJume.
Detergentfails to mix with spray.
Enginewill not start; or startsand runs
1. Low pressure nozzle installed.
2. Water inlet is blocked.
3. inadequatewater supply,
4. inlet hose is kinked or leaking,
5. Clogged inlet hose strainer.
6. Water supply is over 100%.
7. High pressure hose is blocked or
leaks.
8. Gunleaks,
9. Nozzleis obstructed.
10. Pump is faulty.
1. Detergentsiphoning tube is not
submerged.
2. Detergentsiphoning tube/filter is
clogged or cracked.
3. High pressure nozzle installed.
1. Fuelvalve is in "Off" position.
2. Enginestop switch in "Off" position.
3. Low oil level.
4. Dirty air cleaner.
5. Out of fuel.
6. Stale fuel.
Correction
1. Replacenozzlewith high pressure
nozzle.
2. Clear inlet.
3. Provide adequatewater flow.
4. Straighten inlet hose, patch leak.
5. Checkand clean inlet hose strainer.
6. Provide cooler water supply.
7. Clear blocks in outlet hose.
8. Replacegun.
9. Cleannozzle.
10. ContactSears service facility.
1. insert detergent siphoning tube into
detergent.
2. Cleanor replacefilter/detergent
siphoning tube.
3. Replacenozzlewith low pressure
nozzle.
1. Turn fuel valveto "On" position.
2. Placeengine stop switch in "On"
position.
.
rough.
3. Fill crankcaseto proper level.
4. Cleanor replaceair cleaner.
5. Fill fuel tank.
6. Drain fuel tank; fill with fresh fuel.
Engine shutsdown during operation.
Engine lacks power.
Engine "hunts" or falters.
.
9.
O.
1.
2.
3.
Out
Spark plug wire not connected to 7.
spark plug.
Badspark plug. 8.
Water in fuel. 9.
Overchoking. 10.
Excessivelyrich fuel mixture. 11.
intake valve stuck open or closed.
Enginehas lost compression.
of fuel.
Dirty air filter.
Chokeis openedtoo soon.
Connectwire to spark plug.
Replacespark plug.
Drain fuel tank; fill with fresh fuel.
Openchoke fully and crank engine.
ContactSears service facility.
12. ContactSears service facility.
13. ContactSears service facility.
Fill fuel tank.
Replaceair filter.
Move choke to halfway position until
engine runs smoothly.
24
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