for the 750 KW diesel gennys most mantiance useally followed by the engine manufacters recomendations :
engine oil and oil filter[s] useally anywhere from 250 to 500 hours or annually ,
Fuel Filter[s] 250- 500 hours or annually but can be more sooner depending on fuel qualnty if bad fuel or dirty fuel will result change more often
Air filter[s] depending on set up useally anually or by air filter restriction gauge show how far it will be before replaceing
coolant filter[s] if have it genrally annually item
Fan belt or water pump belt[s] check at every oil change for any major cracks or other forgen items along the way
starting batteries every oil change or more often look at the connection to make sure not corroed at the battery[s] termails and starting motor[s] and check the stand by battery charger to make sure it on proper voltage.
but there is few other things you may have to do the mantiance work depending on the engine manufacter required
of course load test the genny run at least min of 15 min but i rather run at least 45 min to run it good at 50 - 80 % load on it do not run on no load mode on diesel engines [ they will run yeah but will get wet stacking and will not get very warm running from this ]
the generator side main thing is keep the area clean check the breaker to make sure it can open and close properly the same with transfer switch [ there is few way to do this so check with the manufacter for the insturction to do this ]
and if this generator is loacted in cold area or outdoor area you may have to check the coolant heater to make sure it working properly as well
if more question please do ask us
merci , Marc
