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Hydraulic fluid heat exchanger fans
#12

Well I was told when I bought my Coach from an Individual, that the heat exchanger was for extra transmission cooling.  I was also shown were the switch was located to turn it on and only needed it when pulling a heavy trailer.  So for the last 10 years, until I read this thread this morning, this is what I thought to be true. I had to pull this unit out a couple days ago to get to an air leak above it.  I lowered the unit, and broke the fitting loose and out came red fluid, that I just assumed was transmission fluid. I assumed since the transmission was lower then this line that it would suck air and not siphon out all the fluid from the transmission.  So I walked away and let it drip.  About 30 minutes later, Pam hollered and told me to look under the coach.  I immediately started crying and was hollering for the kitty litter. Everyone that knows me understands, that I am still trying to realize the world still turns, even when you stain your concrete. After putting down 200 pounds of oil-dry, I got back underneath and tightened both lines back up. Then I thought the best thing to do, since I was completely soaked in fluid was to work as fast as I could and get both lines unhooked and pushed up to the Coach floor (higher then the transmission). I now had fluid running down both arms, chest and face, after about 5 minutes the fluid stopped flowing.  I am so happy that I stumbled upon this thread.  I now know that this is not a transmission cooler and that my hydraulic tank is now completely empty.  The only time I have heard these fans on the unit come on, is when I manually turn them on with a switch mounted in the very top left corner of the wiring bay inside the engine compartment. I now realize that I am going to have to completely understand how this system is supposed to work, and why mine has to be manually switched on.  I am including pictures of the mess, the unit and wiring relays.  What type/weight fluid is used in this unit?  I also have a non-labeled switch mounted on my dash, next to the HWH unit.  I was told this was used to switch the main hydraulic fan in low or high. It also looks like I will have to learn how to attach pictures correctly and in the right order.
                                                                               

Jeff and Pam Reganall
1996 45' Newell Coach #432 Series 60, Allison 6 Speed
Towing 2012 3/4T Ram Truck loaded with the RZR XP Turbo
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Messages In This Thread
Hydraulic fluid heat exchanger fans - by mycbarnes - 07-06-2019, 08:52 AM
RE: Hydraulic fluid heat exchanger fans - by Georgeb - 07-06-2019, 09:32 AM
RE: Hydraulic fluid heat exchanger fans - by Richard - 07-06-2019, 01:14 PM
RE: Hydraulic fluid heat exchanger fans - by RussWhite - 07-06-2019, 01:16 PM
RE: Hydraulic fluid heat exchanger fans - by mycbarnes - 07-06-2019, 06:55 PM
RE: Hydraulic fluid heat exchanger fans - by House Divided - 07-07-2019, 05:54 AM
RE: Hydraulic fluid heat exchanger fans - by mycbarnes - 07-07-2019, 07:30 AM
RE: Hydraulic fluid heat exchanger fans - by House Divided - 07-07-2019, 11:51 AM
RE: Hydraulic fluid heat exchanger fans - by Latitude 28 - 07-07-2019, 02:52 PM
RE: Hydraulic fluid heat exchanger fans - by mycbarnes - 07-08-2019, 06:25 AM
RE: Hydraulic fluid heat exchanger fans - by mycbarnes - 07-11-2019, 08:38 PM
RE: Hydraulic fluid heat exchanger fans - by RegaNewell - 01-05-2022, 12:49 PM
RE: Hydraulic fluid heat exchanger fans - by Richard - 01-05-2022, 03:08 PM
RE: Hydraulic fluid heat exchanger fans - by RegaNewell - 01-05-2022, 04:25 PM
RE: Hydraulic fluid heat exchanger fans - by bestgenman - 01-05-2022, 04:59 PM
RE: Hydraulic fluid heat exchanger fans - by House Divided - 01-05-2022, 05:42 PM
RE: Hydraulic fluid heat exchanger fans - by Richard - 01-05-2022, 06:36 PM
RE: Hydraulic fluid heat exchanger fans - by RegaNewell - 01-06-2022, 11:47 AM
RE: Hydraulic fluid heat exchanger fans - by Richard - 01-06-2022, 06:04 PM
RE: Hydraulic fluid heat exchanger fans - by RegaNewell - 01-10-2022, 05:18 PM
RE: Hydraulic fluid heat exchanger fans - by House Divided - 01-10-2022, 05:42 PM
RE: Hydraulic fluid heat exchanger fans - by Richard - 01-10-2022, 05:59 PM
RE: Hydraulic fluid heat exchanger fans - by RegaNewell - 01-11-2022, 11:58 AM
RE: Hydraulic fluid heat exchanger fans - by RegaNewell - 01-11-2022, 06:14 PM
RE: Hydraulic fluid heat exchanger fans - by RegaNewell - 01-12-2022, 01:04 PM
RE: Hydraulic fluid heat exchanger fans - by Richard - 01-12-2022, 02:53 PM
RE: Hydraulic fluid heat exchanger fans - by RegaNewell - 01-12-2022, 03:07 PM
RE: Hydraulic fluid heat exchanger fans - by RegaNewell - 01-12-2022, 04:58 PM
RE: Hydraulic fluid heat exchanger fans - by Richard - 01-13-2022, 01:24 PM
RE: Hydraulic fluid heat exchanger fans - by Richard - 01-13-2022, 06:28 AM
RE: Hydraulic fluid heat exchanger fans - by Richard - 01-13-2022, 07:23 AM
RE: Hydraulic fluid heat exchanger fans - by RegaNewell - 01-13-2022, 12:59 PM
RE: Hydraulic fluid heat exchanger fans - by Richard - 01-13-2022, 01:07 PM
RE: Hydraulic fluid heat exchanger fans - by RegaNewell - 01-13-2022, 02:13 PM
RE: Hydraulic fluid heat exchanger fans - by Richard - 01-13-2022, 03:56 PM
RE: Hydraulic fluid heat exchanger fans - by RegaNewell - 01-13-2022, 05:10 PM
RE: Hydraulic fluid heat exchanger fans - by Richard - 01-14-2022, 06:02 AM
RE: Hydraulic fluid heat exchanger fans - by RegaNewell - 01-14-2022, 10:44 AM
RE: Hydraulic fluid heat exchanger fans - by Richard - 01-14-2022, 06:11 PM
RE: Hydraulic fluid heat exchanger fans - by RegaNewell - 01-15-2022, 11:28 AM
RE: Hydraulic fluid heat exchanger fans - by RegaNewell - 01-19-2022, 03:43 PM
RE: Hydraulic fluid heat exchanger fans - by Richard - 01-19-2022, 04:55 PM
RE: Hydraulic fluid heat exchanger fans - by Georgeb - 03-09-2022, 07:43 AM
RE: Hydraulic fluid heat exchanger fans - by Richard - 03-09-2022, 08:55 AM
RE: Hydraulic fluid heat exchanger fans - by Fulltiming - 03-09-2022, 09:02 AM
RE: Hydraulic fluid heat exchanger fans - by johnkosir - 03-09-2022, 10:56 AM
RE: Hydraulic fluid heat exchanger fans - by Georgeb - 03-09-2022, 11:18 AM
RE: Hydraulic fluid heat exchanger fans - by Georgeb - 03-09-2022, 11:34 AM
RE: Hydraulic fluid heat exchanger fans - by bestgenman - 03-09-2022, 05:19 PM
RE: Hydraulic fluid heat exchanger fans - by Richard - 03-09-2022, 05:19 PM
RE: Hydraulic fluid heat exchanger fans - by Georgeb - 03-09-2022, 07:03 PM

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