Download Craftsman 580.750840 Operating instructions

Problem
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; startsand
runs roughor shutsdownduring
operation.
Engine lacks power.
Engine"hunts" or falters.
Cause
Correction
1.
Low pressure spray tip installed.
1.
Replace spray tip with high pressure
spray tip.
2.
Water inlet is blocked.
2.
Clear inlet.
3.
Inadequatewater supply.
3.
Provide adequate water flow.
4.
Inlet hose is kinked or leaking.
4.
Straighten inlet hose, patch leak.
5.
Clogged inlet hose strainer.
5.
Checkand clean inlet hose strainer.
6.
Water supply is over IO0°F.
6.
Provide cooler water supply.
7.
High pressure hose is blocked or
leaks.
7.
Clear blocks in outlet hose.
8.
Gun leaks.
8.
Replace gun.
9.
Spray tip is obstructed.
9.
Cleanspray tip.
10. Pump is faulty.
10. Contact Sears service facility.
1.
Detergentsiphoning tube is not
submerged.
1.
2.
Detergentsiphoning tube is clogged 2.
or cracked.
Cleanor replacedetergent siphoning
tube.
3.
High pressure spray tip installed.
3.
Replace spray tip with low pressure
spray tip.
4.
Detergentsiphoning check ball
stuck.
4.
Freedetergent siphoning check ball.
insert detergent siphoning tube into
detergent.
Engine speed is too slow.
Move throttle control to FAST position. If
engine still "bogs down", contact Sears
service facility.
1.
Throttle lever in "Stop" position.
1.
Move throttle lever to "Fast" position.
2.
Fuel valve in "Off" position.
2.
Move fuel valve to "On" position.
3.
Dirty air cleaner.
3.
Cleanor replaceair cleaner.
4.
Out of fuel.
4.
Fill fuel tank.
5.
Stale fuel.
5.
Drain fuel tank; fill with fresh fuel.
6.
Spark plug wire not connected to
spark plug.
6.
Connectwire to spark plug.
7.
Bad spark plug.
7.
Replace sparkplug.
8.
Water in fuel.
8.
Drain fuel tank; fill with fresh fuel.
9.
Overchoking.
9.
Open choke fully and crank engine.
10. Excessively rich fuel mixture.
10. Contact Sears service facility.
Dirty air filter.
Replace air filter.
Choke is opened too soon.
Move choke to halfway position until engine
runs smoothly.
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