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Generators In this forum we will try to answer any of your questions about the different model generators that can be found on Blue Bird coach's.

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  #11  
Old 09-10-2009
cmillsap
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Default Generator crankcase oil capacity

So, after reading the Powertech manual stating the oil should be changed every 100 hrs I decide to just go change mine as it had 150 hrs on it. I drain the oil, change the filters, refill the crankcase with 7.5 quarts of Rotella, start the genny to fill the new oil filter and check for leaks. stop the genny, pull the dipstick, clean, reinsert and repull. Lo & behold, the oil level is about a half quart above the full mark. I recheck the manuals, BB manual states crankcase capacity is 8.5 quarts, Powertech manual says it's 9.5. so, now I have a dilemma, do I believe the dipstick and remove a half quart. Or do I add anothe quart to adhere to the BB manual or add 2 more quarts as stated by the Powertech manual?

Maybe some more knowledgeable than I am knows the answer. I am leaning toward trusting the dipstick and accepting that the crankcase capacity on my genny is only 7 quarts. I think that a more shallow oil pan was installed so it would clear the sound enclosure during extending & retracting. I repoured the old oil back into the Rotells containers. It was about 7 quarts and the genny oil level was near full before I changed it.

Chuck
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  #12  
Old 09-10-2009
fxdwg fxdwg is offline
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I'd run it like it is. If it's over, it will use it up fairly quickly.

I was also surprised by the 100 hr requirement so I looked at my hard manual. It says the same thing, oil every 100 hrs and filter every 200 hrs. It does seem short. Though that's about what I do on the farm tractors.
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  #13  
Old 09-11-2009
cmillsap
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John,

I was surprised to find that the air filter on my coach's generator is exactly the same as the one that's on my Kubota tractor.

Chuck
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  #14  
Old 09-11-2009
fxdwg fxdwg is offline
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I'll bet Kubota didn't make alot of variations. Too much cost involved. We've got their 22hp motor. I'll bet it is used in many of their vehicles.
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  #15  
Old 09-11-2009
BCRoamer BCRoamer is offline
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That same engine is used in many Bobcats. I have a friend that owns a rental business and has a dozen or so Bobcats with the same engine and he changes oil and filter every 500 hours or whenever his cutomers bring it back with more hours than that.

He tells me that engine is so tough it's nearly impossible to destroy. He tells his customers to check the oil every day and be sure it's between the add and full marks and that's it.
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  #16  
Old 09-13-2009
fxdwg fxdwg is offline
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I found the Kubota site and their "generic" maintenance schedule indicates a 200hr oil change interval.
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  #17  
Old 09-13-2009
cmillsap
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Quote:
Originally Posted by fxdwg View Post
I found the Kubota site and their "generic" maintenance schedule indicates a 200hr oil change interval.
That sounds reasonable to me. When I changed the oil at 150 hrs it didn't look like it needed changing. I believe Powertech recommends the filter change every 200 hrs. so it doesn't make much sense to change just the oil only at 100 hrs.
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  #18  
Old 04-20-2010
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iamflagman iamflagman is offline
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Quote:
Originally Posted by fxdwg View Post
I had somebody ask me about my genny and found the manual has the Kubota part numbers for several things. I have a 15KW genny that's a model PTS MH 15 from Bluebird. This should be ehte same genny is many of the birdds out there. There is an engine model and serial number plate under the injector pump. For my 15 KW unit, the engine model is listed as a V1902BG.

Here's the list that is labeled as Kubota part numbers:


Oil Filter 70000-32091
Fuel Filter 70000-43081
Air Filter 70000-11080
Fan Belt 15469-73010
Thermostat 15321-73010
Fuel Pump 476459
Oil Capacity 2.38 gal (9 qts)

Has anybody cross referenced these part numbers to NAPA filters and GATES belts?
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  #19  
Old 04-20-2010
pgchd
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Hey John,
Oil Filter: Wix #51068
Belt: I have a spare gates in the bird
Fuel:- still looking in my mess of papers

I am going to the bird on the weekend so I'll post if someone else doesn't first but I do remember just taking it off and having them match it up

Sorry: 1 for 3..not too good odds!
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  #20  
Old 04-20-2010
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Rob Robinson Rob Robinson is offline
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Generator 15KW Powertech
-Idler pulley NAPA #7-05218
-Fuel filter BB #3970860, NAPA #3390
-Oil filter BB #3970878, NAPA #1515, Baldwin #B5
-Air filter BB #3838158 or Donaldson ECB05-5001
-Thermostat Kubota #19434-73014
-Water Pump Kubota #15521-73035
-Water Pump Gasket Kubota #15766-73430
-Fan Belt Kubota #15469-97010
-Oil Pressure Switch 2 Pole Shutdown (Powertech #SM-19A-10R/ATV)
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