Wacker Neuson G 25 Operator's Manual

Also see for G 25: Operator's manual Operator's manual

Contents

Wacker Neuson G 25 Operator's Manual Manual pdf 52 page image

Maintenance G 25wc_tx000197gb.fm 523.8 Troubleshooting Automatic ShutdownThere are six automatic shutdown conditions: low oil pressure, highcoolant temperature, engine overspeed, engine underspeed, engineovercrank and low fuel. When these occur, the operator can performcertain diagnostic tests to help identify the problem. Most of thesediagnostics deal with the engine.The generator, however, can also cause problems. Consult a qualifiedelectrician or your nearest Wacker Neuson dealer for possible causesof generator problems.Anytime the generator is down for service, secure it by closing andlocking all doors, and hang a "DO NOT RUN" sign on the meteringpanel.Low Oil Pressure Shutdown3.8.1 Check engine oil level using dipstick. Add oil if required.3.8.2 Carefully inspect engine for oil leaks.3.8.3 If oil level is good, start engine and verify loss of oil pressure. Shutdown engine immediately if oil pressure value does not read at least15 psi within 5 seconds.Check the oil pressure shutdown sender and connecting wiring on theengine block. Check for continuity between sender and engine controlmodule. See wiring diagrams.3.8.4 If oil level, oil pressure sender and connecting wiring are good, the faultcould be caused by an engine failure.Note: An engine failure caused by something other than one of the sixshutdown conditions discussed will cause a low oil fault condition to bedisplayed.High Coolant Temperature Shutdown3.8.1 Restart engine and read water temperature. Stop engine iftemperature is above 221°F. Normal engine operating temperature isbetween 170°-190°F.3.8.2 Allow engine to cool to a safe temperature and inspect coolant level inradiator. Add coolant as needed.3.8.3 Carefully inspect coolant hoses and engine block for leaks.3.8.4 Check that fan belt for water pump is tight.3.8.5 Check the high temperature shutdown sender and connecting wiringon engine block. Check for continuity between sender on engine blockand engine control module. See wiring diagrams.3.8.6 If sender and wiring are good, consult engine manufacturer’sOperator’s Manual or Service Manual for possible causes of engineoverheating.WARNING