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Mechanical Diagnosis
133
Engine runs hot
Coolant level is low
Add coolant
Loose or worn water pump belt
Replace belt
Generator overloaded
Check load
Dirty radiator
Wash radiator
Defective thermostat
Check or replace thermostat
Cooling system heavily scaled
Clean cooling system
Cylinder head gasket leaks
Replace cylinder head gasket. Use
correct gasket
Oil pressure too low or
drops suddenly. Minimum
oil pressure for a hot
engine is 117 kPa, 1.17
bar, 17 psi (low oil
pressure switch setting)
Insufficient oil in pan
Add oil
Defective oil pressure sensor
Check oil line to oil pressure sensor to
see if it is blocked. Check oil pressure
sensor. Replace if necessary
Oil relief valve sticking
Disassemble and clean oil pressure
regulator valve
Worn oil pump, camshaft, main or
connecting rod bearings, loose oil gallery
plug
Repair engine
High oil consumption
Oil leakage
Check and eliminate possible causes at
cylinder head cover, oil lines, oil filter,
front timing cover or crankshaft seals
Clogged air cleaner system
Clean air intake system; clean and refill
oil reservoir on oil bath air cleaner; or
replace dry air cleaner filter
Clogged crankcase breather
Clean breather system
Damaged valve seals
Replace seals on valve stem
Worn valve stem
Replace valves
Poor compression
Check and eliminate possible causes.
Repair as necessary
Broken piston rings or cylinder bore worn
or scored
Have engine repaired and re-bored.
Replace broken piston rings
Battery is not recharging
system charging system
Loose connections in electrical system
Check all electrical connections and
charging system
Battery defective
Replace battery
Air heater does not shut off
Check preheat relay and preheat circuit
Controller defective
Replace controller
Diagnosing Unit Conditions
Condition
Possible Cause
Remedy
Содержание SGCO 3000
Страница 4: ......
Страница 12: ...SGCO 3000 Genset Addendum 12...
Страница 14: ...Genset Model Features 14...
Страница 22: ...Service Guide 22...
Страница 32: ...Unit Description Features Options 32...
Страница 78: ...Operating Instructions 78...
Страница 86: ...Electrical Maintenance 86...
Страница 114: ...Engine Maintenance 114...
Страница 124: ...Alternator Operation and Diagnosis 124...
Страница 130: ...Structural Accessory Maintenance 130...
Страница 138: ...Index 138...
Страница 140: ...Electrical and SG Menu Flow Diagrams 140...
Страница 141: ...141 SGCO 3000 Wiring Diagram Page 1 of 1...
Страница 142: ...142 SGCO 3000 Schematic Diagram Page 1 of 1...