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Sanden - 510 vs 7402

260ac on Mon June 16, 2008 1:04 AM User is offline

Year: 1986
Make: Chevy
Model: P30
Engine Size: 454
Refrigerant Type: r12

Does anyone have a good source or book on Sanden units? My chassis guide book says the 510, U9125 was used, the compressor itself (never been changed) says it is a 7402. What's the difference between these? I plan on sticking with r12 for right now.

Yes I'm doing a complete overhaul. It 22 years old. worked last year when we got it for about 120 miles then made a terrible sound.. I'm not pissing with it. getting a new compressor and drier. should I flush things out? Have no idea how to do this. It seems no one wants to touch an RV anymore so I'm going to have to. Wish we could all be that choosy about our work.

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