Onan 5500

[Rabidd]

I bought my Raptor used and did not get any manuals for the generator. It is a Onan Marquis Gold 5500. How do you get the cover off the generator so I can check the oil level and do service can you order a manual for the generator.

[jtyphoid]

Mine pulls straight out at the top. Mine is also rather stubborn and takes a solid yank to pop free.

It looks like you can download owner's manuals from http://cumminsonan.com

[abneynormal]

mine came with the manual. to service pull the top of the front cover it will pop open. http://www.cumminsonan.com/www/html/...s/983-0101.pdf
now I also bought a workshop manual from ebay if you are able to fix and work on engines it is a must . if not have a friend that can service it. btw I put all my filter numbers on the cover for quick reference, that includes wix and napa numbers

[crash]

I always put the filter numbers and hours on the inside cover to remind me when it was done.JM2C

[Rabidd]

Thanks a bunch

[dogger]

Does anyone have the cross referenced filter numbers for the onan 5500 available off hand.

Also thanks for the manual. I was able to skim through it to get an idea on the service required on ours this fall.

Cheers

[jtyphoid]

After quite a bit of googling and reading, it appears to me that there are at least two variants of Onan 5500 generators (maybe more?), with different oil filters. So try to get model information and do some independent cross-checking before stocking up on filters based on what you read on the Internet.

For my model HGJAB, I believe that the following oil filters will all work, although the lengths are not identical:
Onan 122-0836
Wix 57398
NAPA Gold 7398

Also, you're going to want an oil filter wrench. It's not easy to get a grip on the darn thing, and standard filter wrenches aren't likely to work.
Onan part #420-0577 or
NAPA skinny 3 finger 775-9018

[spicercars]

If you take the filter number to napa they can cross it over to a gold filter and they are a lot cheaper then the Onan one's are and they are very good quality filter.