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Old 04-12-2015, 07:46 PM   #1
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2002 National Tradewinds

I have a 2002 National Tradewinds with 7500 onan Diesel generator. I need to change out Fan belt. The generator is not on slides. How is generator pulled?

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Old 04-14-2015, 01:09 PM   #2
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I watched the Generac repair shop take mine out, same setup as yours. They used a wheeled lift jack and wood blocks like the one you would use on your car. They then used a fork lift and straps to lift it out through the front. I needed the radiator repaired. I was going to do it myself, but after looking at how I would have to do it I figured it was a whole lot cheaper and safer in the end to have them do it. Especially if I dropped it.

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2001 Tradewinds 7390 2011 CRV EX-L Navi w/ RoadMaster FuseMaster
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Old 04-14-2015, 10:10 PM   #3
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Old 04-15-2015, 07:09 AM   #4
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Some generators, like mine, have to be cut out...yes, a torch is required to cut the support brackets that are factory welded.

Call me crazy, but, I would think a mid-level diesel pusher manufacturer could fab up a generator cradle with grade 8 nuts/bolts that could easily be removed to service the unit....sheeesh...
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Old 04-15-2015, 07:12 AM   #5
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We have an 8kw onan generator mounted in the front of our 2007 Winnebago Journey 36G. We returned it to Cummins here in Richmond, Va. under warrenty because it was leaking antifreeze and had 150 hours on it (Cummins owns Onan). They had to raise the MH on all four corners about three feet to pull the generator out the bottom. Scarey, but they had the equipment to do the job. The jacks fit under the tires kind of like a fork lift. Mine turned out to be the overflow tank had a crack in it. Warranty paid $950.00 for that encounter. They advise changing all belts, hoses and thermostat at 1000 hours at a cost of approx. $1200. Very professional people and I plan on doing that when the time comes. Our has 600 hours on it now. Hope this helps.
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Old 04-15-2015, 08:15 AM   #6
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How much room do you have in the rear of the generator. If you have room and can reach up behind it you may be able to remove the rear panel to give you access. To change the belt you have to remove the upper pulley off the water pump.
Jim J
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Old 04-15-2015, 12:13 PM   #7
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Forgot to add that mine was removed after it was unbolted, did not require a torch. The other thing you might be able to do is unbolt it from the cross members and use a jack with wood blocks to lift it enough to remove the side and rear panels. This is what I thought about doing, but then thought, what if it falls off the block. I figured it would be safer and cheaper in the long run to let the pro's do it. If you go with a shop, make sure they are certified on your generator, they know these babies.
Joe & Angie
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2001 Tradewinds 7390 2011 CRV EX-L Navi w/ RoadMaster FuseMaster
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Old 04-16-2015, 09:18 AM   #8
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Three years ago I had a 2003 Bounder Diesel with that had to have the generator removed for repairs. There is a place in town here that does this almost daily. Jack up the HM and drop the gen out the bottom. They replaced the belt, thermostat, temperature sending unit, and coolant. They were done in less than 4 hours and charged $460.

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