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Country Coach Hydraulic Hose to Fan Problem

Yahoo Message Number: 11342
On my recent trip to the Tetons and Yellowstone I got a call on my CB from a friend traveling behind me that smoke was "Pouring" out of the back of my 98 CC Allure.

I pulled to the shoulder of Interstate 15 and stopped. Smoke was "billowing" out of the engine compartment and liquid was running out of the right rear. The back of the coach was coated with a thick film of some type of oily fluid and there was a trail behind on the road. I had blown a hydraulic hose that runs the hydraulic fan motor. When I was able to get a service guy from Pocotello ID out to the disabled coach he found that there was a hole in the hose. He removed the hose and took it back to his shop where he made a new hose like the original. When it was installed we discovered that it was rubbing on the frame rail just opposite of the hydraulic pump on the engine. This was in exactly the same place the original hose failed. We suspect from being abraded against the frame. The engine is on engine mounts and thus moves slightly in relation to the frame. Constant movement where the hose touched the frame caused the failure. Unfortunately there is little option on routing the hose and there is little room to put in an anti abrasion sleeve on the hose. I am going to a custom hose fabricator to see if they have a fitting for the end of the hose that would keep the hose and its fittings away from the frame. I'm not too optimistic.

Has anyone else had this problem and devised a solution?

Roger Mullins

mullinsr@...

Re: Country Coach Hydraulic Hose to Fan Problem

Reply #1 –
Yahoo Message Number: 11349
I blew the same hose about 2 days after I had purchased this coach (used). My hose split right at the fitting at the fan hydraulic motor. It is a high pressure hose. Emptied 12 qts of hydraulic fluid on the highway in Northern Michigan (St. Ignace)....nice. The mechanic that repaired it said that the hoses that were on it were of a poor quality. Maybe someday, I'll change them all....maybe not.

Mike

95 Intrigue 10061

Quote from: Roger Mullins
> On my recent trip to the Tetons and Yellowstone I got a call on my

CB

Quote
from a friend traveling behind me that smoke was "Pouring" out of

the

Quote
back of my 98 CC Allure.

I pulled to the shoulder of Interstate 15 and stopped. Smoke > was "billowing" out of the engine compartment and liquid was

running

Quote
out of the right rear. The back of the coach was coated with a

thick

Quote
film of some type of oily fluid and there was a trail behind on

the

Quote
road. I had blown a hydraulic hose that runs the hydraulic fan > motor. When I was able to get a service guy from Pocotello ID out

to

Quote
the disabled coach he found that there was a hole in the hose. He > removed the hose and took it back to his shop where he made a new > hose like the original. When it was installed we discovered that

it

Quote
was rubbing on the frame rail just opposite of the hydraulic pump

on

Quote
the engine. This was in exactly the same place the original hose > failed. We suspect from being abraded against the frame. The

engine

Quote
is on engine mounts and thus moves slightly in relation to the > frame. Constant movement where the hose touched the frame caused

the

Quote
failure. Unfortunately there is little option on routing the hose > and there is little room to put in an anti abrasion sleeve on the > hose. I am going to a custom hose fabricator to see if they have

a

Re: Country Coach Hydraulic Hose to Fan Problem

Reply #2 –
Yahoo Message Number: 11359
Mike,

Are these "just" rubber hoses ?? Would a hose with metal braiding around it solve the problem ??

Michael

Re: Country Coach Hydraulic Hose to Fan Problem

Reply #3 –
Yahoo Message Number: 11372
I don't really know. Mine was a rubber hose with some sort of heavy thread spiral wrapped on the outside. Stainless braided line could probably be used....very expensive though. I don't know what pressures that system operate under. I do know that pump can empty 12 qts of fluid onto the highway within about a minute. I get the impression that there are many different types of hydraulic hoses.
Cost, application, and life-cycle are probably a few of the determining factors that go into choosing the type of hose used.

For what it's worth.
Mike

95 Intrigue 10061

Quote from: matsprt1984

Mike,

Are these "just" rubber hoses ?? Would a hose with metal braiding > around it solve the problem ??

Michael

>

Re: Country Coach Hydraulic Hose to Fan Problem

Reply #4 –
Yahoo Message Number: 11387
In my case the failure was at the right angle fitting on the hose.
The crimp on the fitting is larger diameter than the rubber hose and it rubbed until it failed. Braiding would probably not have helped.

Roger Mullins
98 Allure

Quote from: matsprt1984

Mike,

Are these "just" rubber hoses ?? Would a hose with metal braiding
around it solve the problem ??

Michael

>

Re: Country Coach Hydraulic Hose to Fan Problem

Reply #5 –
Yahoo Message Number: 11395
Mike,

Kind of what I thought. I know stainless is expensive but compared to the cost and time of losing 12 qts of fluid....might be worth it.
Just an idea...

Michael

Quote from: faa_engineer
> I don't really know. Mine was a rubber hose with some sort of

heavy

Quote
thread spiral wrapped on the outside. Stainless braided line

could

Quote
probably be used....very expensive though. I don't know what > pressures that system operate under. I do know that pump can

empty

Quote
12 qts of fluid onto the highway within about a minute. I get the > impression that there are many different types of hydraulic

hoses.

Quote
Cost, application, and life-cycle are probably a few of the > determining factors that go into choosing the type of hose used.

For what it's worth.

Mike

95 Intrigue 10061

[quote author=matsprt1984"

> Mike,
>

> Are these "just" rubber hoses ?? Would a hose with metal

braiding

Quote
around it solve the problem ?? > >

> Michael
>
>
>
>

>

Re: Country Coach Hydraulic Hose to Fan Problem

Reply #6 –
Yahoo Message Number: 11396
I think that there are better alteratives. I did a Yahoo search on "hydraulic hose" and the available options are numerous and surprisingly affordable. Maybe one of these days when I feel like getting really greasy and grimey.

Later
Mike

95 Intrigue 10061

Quote from: matsprt1984

Mike,

Kind of what I thought. I know stainless is expensive but compared > to the cost and time of losing 12 qts of fluid....might be worth

it.

Quote
Just an idea...

Michael

[quote author=faa_engineer"

> I don't really know. Mine was a rubber hose with some sort of > heavy

> thread spiral wrapped on the outside. Stainless braided line > could

> probably be used....very expensive though. I don't know what > > pressures that system operate under. I do know that pump can > empty

> 12 qts of fluid onto the highway within about a minute. I get

the

Quote
impression that there are many different types of hydraulic > hoses.

> Cost, application, and life-cycle are probably a few of the > > determining factors that go into choosing the type of hose used.
>

> For what it's worth.
>

> Mike

> 95 Intrigue 10061
>
>

[quote author=matsprt1984"
>]
> > Mike,
> >

> > Are these "just" rubber hoses ?? Would a hose with metal > braiding

> > around it solve the problem ?? > > >

> > Michael
> >
> >
> >
> >

> >

Re: Country Coach Hydraulic Hose to Fan Problem

Reply #7 –
Yahoo Message Number: 11397
When my hose failed it was at the crimp where the hose attaches to the right angle fitting. The metal crimp is larger diameter than the hose. The fitting was attached to the hydraulic pump on the engine, made a right angle then was crimped onto the hose. There was insufficient room between the pump and the chassis rail and the crimp itself was rubbing on the chassis rail whenever the engine moved relative to the chassis. That movement is inevitable since the engine is isolated from the chassis by motormounts. The rubbing caused the crimp to fail. In my case the hose material would not have made a difference. What was needed was a right angle fitting that had a steel portion with a short length on the end that attached to the pump and a long length (6 inches or so) on the end that was crimped. There is plenty of room for the steel tube itself but the crimp is probably twice the diameter as the steel tube. Once away from the frame rail there is plenty of room for the crimp.

Quote from: faa_engineer
> I think that there are better alteratives. I did a Yahoo search > on "hydraulic hose" and the available options are numerous and > surprisingly affordable. Maybe one of these days when I feel like > getting really greasy and grimey.

Later

Mike

95 Intrigue 10061

[quote author=matsprt1984"

> Mike,
>

> Kind of what I thought. I know stainless is expensive but

compared

Quote
to the cost and time of losing 12 qts of fluid....might be worth > it.

> Just an idea...
>

> Michael
>
>
>

[quote author=faa_engineer"
>]
> > I don't really know. Mine was a rubber hose with some sort of > > heavy

> > thread spiral wrapped on the outside. Stainless braided line > > could

> > probably be used....very expensive though. I don't know what > > > pressures that system operate under. I do know that pump can > > empty

> > 12 qts of fluid onto the highway within about a minute. I get > the

> > impression that there are many different types of hydraulic > > hoses.

> > Cost, application, and life-cycle are probably a few of the > > > determining factors that go into choosing the type of hose used.
> >

> > For what it's worth.
> >

> > Mike

> > 95 Intrigue 10061
> >
> >

[quote author=matsprt1984"
> >]
> > > Mike,
> > >

> > > Are these "just" rubber hoses ?? Would a hose with metal > > braiding

> > > around it solve the problem ?? > > > >

> > > Michael
> > >
> > >
> > >
> > >

> > >

Re: Country Coach Hydraulic Hose to Fan Problem

Reply #8 –
Yahoo Message Number: 11398
I have been watching this thread for the last couple of days and I would like to offer some assistance in finding an actual hose house in your area.
If you would like, go to www.parker.com   and look up distributors at the top of the page and type in your area code and you should find a Parker Store close by that will make just about any hose that you need.

You can also search www.aeroquip.com

I work for a Parker Distributor in Texas and felt that this may help.

Craig McGray