Troubleshooting - Craftsman 580.752960 Operator's Manual

Problem
Pump has following problems:
failure to produce pressure,
erratic pressure, chattering, loss
of pressure, low water volume.
Detergent fails to mix with spray.
Engine runs good at no-load but
"bogs" when load is added.
Engine will not start; starts and
runs rough or shuts down during
operation.
Engine lacks power.

TROUBLESHOOTING

Cause
1. Water inlet is blocked.
2. Inadequate water supply.
3. Inlet hose is kinked or leaking.
4. Clogged inlet hose strainer.
5. Water supply is over 100°F.
6. High pressure hose is blocked or
leaks.
7. Gun leaks.
8. Spray tip is obstructed.
9. Pump is faulty.
1. Detergent siphoning tube is not
submerged.
2. Detergent siphoning tube is
clogged or cracked.
3. High pressure spray tip installed.
4. Detergent siphoning check ball
stuck.
Engine speed is too slow.
1. Throttle lever in STOP position.
2. Dirty air cleaner.
3. Out of fuel.
4. Stale fuel.
5. Spark plug wire not connected to
spark plug.
6. Bad spark plug.
7. Water in fuel.
8. Overchoking.
9. Excessively rich fuel mixture.
Dirty air filter.
22
Correction
1. Clear inlet.
2. Provide adequate water flow.
3. Straighten inlet hose, patch leak.
4. Check and clean inlet hose strainer.
5. Provide cooler water supply.
6. Clear blocks in high pressure hose or
replace hose.
7. Replace gun.
8. Clean spray tip.
9. Contact Sears service facility.
1. Insert detergent siphoning tube into
detergent.
2. Clean or replace detergent siphoning
tube.
3. Replace high pressure spray tip with
black spray tip.
4. Free detergent siphoning check ball.
Move throttle lever to FAST position. If engine
still "bogs down", contact Sears service
facility.
1. Move throttle lever to FAST position.
2. Clean or replace air cleaner.
3. Fill fuel tank.
4. Drain fuel tank; fill with fresh fuel.
5. Connect wire to spark plug.
6. Replace spark plug.
7. Drain fuel tank; fill with fresh fuel.
8. Open choke fully and crank engine.
9. Contact Sears service facility.
Replace air filter.