Craftsman 580.768050 Operator's Manual page 17

7.8 horsepower 3000 psi 2.5 gpm high pressure washer cleaning system
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1.
PROBLEM
Pump has followingproblems:
failure to producepressure, or
erratic pressure, chattering,loss of
pressure, low water volume.
Detergent fails to mix.
CAUSE
Nozzlein lowpressure mode.
2. Water inlet is blocked.
3. Inadequate water supply
4.
5.
6.
7.
8.
9.
10. Nozzle is obstructed.
11. Pump is faulty.
1. Detergent line is collapsed or
kinked
2. Chemical tank filter is clogged.
3. Nozzle is in high pressure mode.
t.
2.
3.
4.
inlet hose is kinked or leaking
Clogged water inlet screen.
5.
Water supply is over 140°F.
6.
Outlet hose is blocked.
7.
Outlet hose leaks.
8.
Gun leaks.
9.
10.
11.
1.
Engine runs good when not spraying
but dies when you beginto spray.
Engine _'ill net start; or starts
1.
and runs rough
2.
3.
4.
5.
6.
7.
CORRECTION
Twist chemical valve handle
to place in low pressure mode.
Clear inlet
Provideadequate water flow at
least 3 gem.
Straighten inlethose, patch leak.
Replace / clean water inlet
screen.
Provide cooler water supply.
Clear blocksin outlet hose.
Replace outlet hose if leaking.
Replace O-ring or gun if
necsssaq/.
Clear nozzle.
Contact Sears Service
Department.
4. Dial-a-Cleaner knob is in off position.
Engine speed is too slow.
Contact Sears Service Department.
Dirtyair cleaner
Out of gasoline.
Stele gasoline.
Spark plug wire not connected
to spark plug.
Bad spark plug.
Water in gasoline.
Ovemhoking or flooded
8. Excessivelyrich fuel mixture.
9. Intake valve stuck open or closed.
10. Engine has lostcompression.
Engine shuts down during
1.
Out of gasoline.
operation
2.
Air filter dirty
Engine lacks power.
Dirtyair filter.
Replace air filter.
Repair or replace detergent
line.
2.
Replace tank
3. Twist chemical valve handle
to place in low pressure mode.
4.
Rotate knob for desired chemical.
1. Clean or replace air cleaner.
2. Fill fuel tank.
3. Drain gas tank; fillwith fresh fuel.
4, Connect wire to spark plug.
5. Replace spark plug.
6. Drain gas tank; fill with fresh fuel.
7. Set engine throttlecontrol lever to
fast position,choke in mn
position.
8. Contact Sears Service
Department.
9. Contact Sears Service
Department.
10. Contact Sears Service
Department.
1.
Fill fuel tank.
2.
Replace Air filter.
17

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