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Old 10-06-2012, 07:44 AM   #1
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Servicing my 330 Cat

My 2004 330 Cat has about 49,000 miles and I am now only putting about 4 or 5,000 miles on it a year. Every November I change the oil and oil filter as well as the fuel filter. I also service the 7500w generator (400 hrs) and lube the chassis. Is it necessary to do all this or am I overdoing it with the fuel filters, generator and chassis lube?

Thanks, Hank
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Old 10-06-2012, 08:21 AM   #2
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Servicing my 330 Cat

Hi Hank,

I have the CAT C12 and the interval for oil and fuel filter service is by mileage or months.
I only put 6-8K miles a year on my Affinity so I do the service by time interval, every 12 months.
Does that seem excessive? Maybe, but it is way cheaper than a new engine, transmission, gen set or most any thing else.
Onan uses the hours or months intervals. Again for me it's once a year for service.
One could probably use an oil analysis service and extend the oil interval, but I don't, I just change the 9 gallons of oil in the CAT once a year. Same with the few quarts in the gen. I replace all the filters, lube the chassis and in general just follow the regular maintenance intervals for everything.
So, in answer to your question, I don't think you are over doing it at all. Follow the manufacturers recommended intervals, and all should be well.

Luck,
Bob
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Old 10-06-2012, 08:31 AM   #3
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Hank

I am in the same boat as you, however as my generator usage is very low per year I do it every other year.
One thing I have done is I found a very qualified RV/dieasel mech. that comes to my storage facility and services everything onsite.
I prebuy my oil/filters at wallmart/freightliner/Cat/Onan.
He has a flate rate of $120.00 labor for oil change, complete lube, and fuel/water separator change, plus vehicle inspection.
So for abot $200.00, slightly more when the genny oil is changed, its not so bad and he shows up right in front of my motorhome by appointment.
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Old 10-06-2012, 09:40 PM   #4
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Hello Hank, we have an 04 CAT 330HP. The trick with this vintage CAT is the Heui pump which is lubricated by the oil. I change my oil myself, which is easier than my truck, and I do it at every 5K regardless. I know some may consider it overkill, but clean oil is the key to prolonging the life of the Heui pump which has a 100% failure rate, if you keep it long enough. I recently ran into a CAT certified journeyman mech. that said 5K miles was a good benchmark. We put 10-12K miles per year, i.e., 2 oil changes per year.
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Old 10-07-2012, 06:02 AM   #5
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Quote:
Originally Posted by doorguy View Post
Hello Hank, we have an 04 CAT 330HP. The trick with this vintage CAT is the Heui pump which is lubricated by the oil. I change my oil myself, which is easier than my truck, and I do it at every 5K regardless. I know some may consider it overkill, but clean oil is the key to prolonging the life of the Heui pump which has a 100% failure rate, if you keep it long enough. I recently ran into a CAT certified journeyman mech. that said 5K miles was a good benchmark. We put 10-12K miles per year, i.e., 2 oil changes per year.
Thanks for the advice. I think I will continue with my annual service program. Better to be safe than sorry.

Hank
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