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04-21-2018, 01:58 PM
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#1
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Senior Member
Join Date: Feb 2018
Location: Lancaster, Ca
Posts: 189
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Hydraulic leak possible sorces
I purchased Tom's 2000 Alpine 36 FDS Special Edition. On my way back from Az. I got a "Jacks down" alarm on dash. I pulled over and found the 2 rear jacks down about 1/2 an inch and a bit of hydraulic fluid on the ground and fluid on several hoses and parts by the engine fan. Putting the jacks in manual mode I raised the rear jacks until the alarm went away. Made it home fine but worried the neck out of me.
I heard that the engine cooling fan may be hydraulically powered. Is this true? The leveling system has a completely different fluid source from the fan I would assume? I take it that some jack lines may be back by the fan as I still get leakage on the ground while its just sitting there?
Mark
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04-21-2018, 03:23 PM
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#2
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Senior Member
Join Date: Oct 2014
Posts: 7,867
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Mark,
Yes, the jack and fan hydraulics are completely separate.
A good idea to crawl under and determine the SOURCE of the leak.
Or a picture of where you see the leak.
__________________
Brett Wolfe
Ex: 2003 Alpine 38FDDS. Ex: 1997 Safari Sahara. Ex: 1993 Foretravel U240
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04-22-2018, 08:11 AM
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#3
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Senior Member
Join Date: Nov 2005
Posts: 7,382
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.....as Brett pointed out, there are a number of sources for "hydraulic fluid" leaks in this area. Having the jacks descend while traveling [usually the rear/drivers side next to radiator] is pretty common due to heat expansion. Leaks at solenoid[s] at HWH pump manifold or hoses could cause jacks to deploy too. I get burnt on this but if your rig has a bed or wardrobe slide over the radiator area [some Alpine models don't], this can be a source of leaks too. Bottom-line: jack deployment may not be related to the fluid leaks you are seeing. Try a search of this forum--lots of posts on these issues....
__________________
Old Scout
2015 IH45 Foretravel
2003 Alpine 40' MDTS [Sold]
New Braunfels, Texas
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04-22-2018, 09:39 AM
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#4
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Senior Member
Join Date: Oct 2014
Posts: 7,867
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As Old Scout said, IF you have a wardrobe slide and the leak shows up on the forward part of the CAC (visible from the left side of the coach) this is a known issue and can be upgraded.
Let us know what you find.
__________________
Brett Wolfe
Ex: 2003 Alpine 38FDDS. Ex: 1997 Safari Sahara. Ex: 1993 Foretravel U240
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04-23-2018, 04:59 AM
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#5
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Senior Member
Join Date: Feb 2018
Location: Lancaster, Ca
Posts: 189
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Hydraulic leak
I think I found the problem. A plastic bag was wrapped around the fan shaft next to the fan pump. My neighbor who works as a maintenance manager for an airport equipment repair facility on stuff like buses says it is possible for the bag to damage the seal on the fan pump. It was very black and wound pretty tight.
Thanks, Mark
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04-23-2018, 07:39 AM
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#6
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Member
Join Date: Feb 2003
Location: STEVENSON RANCH, CA
Posts: 92
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__________________
FRED 2001 40 FT ALPINE ISC 350
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04-23-2018, 02:54 PM
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#7
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Senior Member
Join Date: Feb 2018
Location: Lancaster, Ca
Posts: 189
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Oh hey In live in Lancaster and my brother lives in Stevenson Ranch.
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04-27-2018, 06:52 PM
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#8
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Senior Member
Join Date: Feb 2018
Location: Lancaster, Ca
Posts: 189
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Hydraulic leak
Plastic bag wrapped around my fan motor shaft and caused a hydraulic leak; what a pain! Been trying to find another hydraulic motor which was made by Sunderstrand, is very difficult. Only found one company who offered the motor / valve combo for $1,517. My reluctance is that I know a Stupid plastic bag wrapped around my motor shaft and made what I would assume is a motor seal, Ieak. In my world we don't pay a crazy amount of money, not saying the motor /valve combo isn't with it, but I and or we fix leaks!
By the way this motor on the company web site, with info from the motor casting info is a TAM22-90/26.5 or Model #26.5. I've been seeing seal kits for e.g. 22 series motors but I don't know if that would work in my case. A nice lady from a Hydraulic company I was referred to said she's going to contact Sunderstrand and see if they have any motors in stock or a seal kit.
I am Very lucky to have a young guy at work whose a mechanic who trained in diesel trucks,buses and locomotives. Hes coming by tomorrow to take the motor out and we will go from there.
I did look under Lots of Hydraulic motor parts but wondering if anybody else has more info like for a seal kit.
Thank you and sorry if this is long winded.
Mark
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04-27-2018, 07:56 PM
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#9
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Registered User
Join Date: Oct 2016
Posts: 3,026
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nwrvsupply.com has the Sauer Danfoss Tam22-90/26.5 for $272. Their product code is AKTE5K.
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04-27-2018, 08:17 PM
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#10
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Senior Member
Alpine Owners Club
Join Date: Jun 2004
Posts: 2,553
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Regarding the jacks down alarm. If the HWH system isn’t allowed to cycle itself off on its own, heat from the engine can cause a jack to travel downward setting off the alarm. On ours it is the same jack every time but can’t remember if it is left or right.
__________________
Tom, Patty, Hannah "The Big Dog" and Abby Kat, Indianapolis, Indiana 2000 Alpine 36' FDS 72232, 2005 Blue Bird M450 LXI Our Photos
"We live out in our old van. Travel all across this land. Drive until the city lights dissolve into a country sky, just me and you - hand in hand." Zac Brown Band
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04-27-2018, 10:35 PM
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#11
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Senior Member
Join Date: Feb 2018
Location: Lancaster, Ca
Posts: 189
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Hydraulic leak
RV Pioneer I am very grateful for your help, I'm going to try and order right away. Tom and Patty thanks as I'm a newbie and like being in control, now I will be with your info.
Mark
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05-04-2018, 03:14 PM
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#12
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Senior Member
Join Date: May 2004
Location: Auburn, CA, Havasu, AZ & Mulege, BCS
Posts: 5,385
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before ordering a new fan motor, IIWMI'd tear down the old & head to a bearing & seal seller for matching replacement parts for seals. For $300, a new motor would be great, however I've seen multiple orders of fan motors & pumps that went into the twilight zone w/wrong parts delivered and huge delays. The seal parts should be source-able w/relative ease; most shops won't mess w/that so you have to find good help willing to, well, er, uh, help.
__________________
Baja-tested '08 2-slide 36'
Alpine: The Ultimate DIY'er Project
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05-11-2018, 06:40 AM
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#13
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Senior Member
Join Date: Feb 2018
Location: Lancaster, Ca
Posts: 189
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Hydraulic leak
I bought the motor from Norhwest RV, TAM22-90/26.5 C107 ATKE5K. Motor looks exactly the same as mine but it isn't with regards to the Valve which bolts to one side that 3-4 hoses connect to. The difference is the last letters/number after the C107. Mine is RUL. E/9L, the new one is ATKE5K. The new motor has large threaded ports that I believe hose connection nipples screw in to. Mine has the cast iron valve simply held in place with 2 Allen bolts. My valve looked as though the hose nipple went through the valve screwing into the motor, it does not, it only screws into the valve body.
Regarding a new seal, I did buy 3, Just in case and had to order from a bearing house a Monday which was 2 mm narrower but will work.
Thanks all,
Mark
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05-16-2018, 01:00 PM
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#14
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Senior Member
Join Date: Feb 2018
Location: Lancaster, Ca
Posts: 189
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Hydraulic leak
The Alpine has been repaired! The motor shaft seal was about $10 with shipping, about 5 hrs labor to take out motor and frame assembly with my assistance and say 8 hrs putting back together with my co-worker, mechanic, new friend doing most of the work. At $20 hr it was just over $350.
I found out at a party when he was checking out my Alpine that he trained in diesel engines for trucks, buses and locomotives. Luckily I found he does do side jobs at $15 hr. When working together I let him know that $15 was too cheap and Im paying him $20.
He's the second friend I have who does mechanical work and charges that little. My mechanic at a business is $110 hr and when I have to use them its worth it. When you get a friend like that let them know how much you appreciate them and Never do them wrong!
I have another friend who's coming by to finish repairing my broken kitchen drain pipe at the grey water Thank in my slide out, again my vehicle retailer who's also a professional plumber and is very inexpensive.
Going on our 1ST camping trip to the beach in Ventura, CA. for a week.
Thanks to All of You for Your priceless help that's going to make it possible to celebrate turning 55 at the beach. Thanks Tom and Laurel for letting us enjoy life in our new home.
Peace, Mark
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