Troubleshooting - Murray 020393-0 Mode D'emploi

Troubleshooting

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; or starts and runs
rough.
Engine shuts down during operation.
Engine lacks power.
Cause
1. Low pressure spray tip installed.
2. Water inlet is blocked.
3. Inadequate water supply.
4. Inlet hose is kinked or leaking.
5. Clogged inlet hose screen.
6. Water supply is over 100°F.
7. High pressure hose is blocked or
leaks.
8. Spray gun leaks.
9. Spray tip is obstructed.
10. Pump is faulty.
1. Detergent siphoning tube is not
submerged.
2. Detergent siphoning tube/filter is
clogged or cracked.
3. High pressure spray tip installed.
Engine speed is too slow.
1. Low oil level.
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. Excessively rich fuel mixture.
Out of fuel.
Dirty air filter.
Correction
1. Replace with high pressure spray
tip.
2. Clear inlet.
3. Provide adequate water flow.
4. Straighten inlet hose, patch leak.
5. Check and clean inlet hose screen.
6. Provide cooler water supply.
7. Clear blocks in outlet hose.
8. Replace spray gun.
9. Clean spray tip.
10. Contact local service facility.
1. Insert detergent siphoning tube into
detergent.
2. Clean or replace filter/detergent
siphoning tube.
3. Replace with low pressure spray
tip.
Move throttle control to FAST position. If
engine still "bogs down", contact local
service facility.
1. Fill crankcase to proper level.
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. Contact local service facility.
Fill fuel tank.
Replace air filter.
21