Troubleshooting - WACKER Group PDT 2 Repair Manual

Maintenance

4.14 Troubleshooting

Problem / Symptom
Engine does not start.
Engine starts but pump does
not take in water.
Pump output low.
wc_tx000593gb.fm
Reason / Remedy
• Engine problem. See engine manufacturer's service
manual for troubleshooting and repair.
• Engine oil level too low. Add oil to engine.
• Pump housing filled with dirt and debris. Disassem-
ble and clean inside of pump.
• Pump gear case damaged. Inspect and repair.
• Pump is located too high above or too far away from
water. Locate pump closer to water.
• Air leak on suction side of pump. Check that hose
fittings and cap on surge chamber are tight and seal-
ing properly.
• Suction hose damaged or collapsed. Repair or
replace hose.
• Strainer plugged. Clean or replace strainer.
• Dirt collecting inside pump and hoses, blocking flow.
Clean inside of pump and flush hoses.
• Engine running slow. Check engine speed and
adjust. See chapter Technical Data for engine
speed.
• Pump valves damaged or not seating properly.
Check for stones and gravel imbedded in valves.
Replace valves.
• Diaphragm loose or damaged. Inspect diaphragm
for damage. Replace and tighten.
• Pump located too high above or too far away from
water. Locate pump closer to water.
• Suction strainer or intake line partially plugged.
Clean hose line and strainer.
• Discharge hose is kinked or end is blocked. Check
that hose lies straight and flows freely.
• Discharge hose too narrow. Use hose of equal
diameter or larger than suction hose.
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