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Topic: Heads up for all? (Inspect your hydraulic hoses for wear damage) (Read 859 times) previous topic - next topic

Heads up for all? (Inspect your hydraulic hoses for wear damage)

 While finishing a few things I was working on under our coach I decided to check all hyd' hoses etc for friction damage as we did find a few places when Don had their coach here. Low and behold the Aeroquip Hyd line from Pump to radiators was comprimised in 2 places by being too tight across frame members. Luckily the metal liner in it was only just starting to get worn so covered hose with a solid rubber strip and fastened it to this frame hopefully to fix it. There was another one on same line so did this of course and a ground cable was half cut thru by friction in another place. In all I fixed 4 problems waiting to happen and took measurements etc of the main Hydr' one so I can make up a spare (just in case). I think this was the same line that Piku had his recent on road disaster with.
I strongly suggest that you all take a look and check these things out as it may come back and bite you if not. Should you be having your coach in for tires or mechanical work maybe ask if you can do a check while it is high enough off ground.
Hopefully I have averted a major problem while on the road.
JohnH
Coachless, now use aircraft. 2003 Ford Travelair TC280 class C. Super shape. Just for 1 yr .
1994 Ford E350 ClassC,total renovation inside and out. Now sold.
2000 U295  36' Cummins 350 c/w Banks Stinger, Resonator upgrade,Solar, LED lites.Residential fridge with slide out pantry. Build 5674. Sold
ex 92 GV 022C ored Cummins. Sold
ex 95 GV240 cat 3116. Sold
2017 Mini cooper s & 2016 land Rover LR2 HSE  LUX.
jhaygarth@aol.com    SKP #130098
treat everyone as you would like to be.

Re: Heads up for all? (Inspect your hydraulic hoses for wear damage)

Reply #1 –
Great idea.

I had a similar experience except that mine was found by Bern Ramspect while my coach was in getting work done.  My hose had 4 spots worn down to metal, so he had a new one made, installed it, and checked all the others.

If  anyone needs mechanical work done in NAC on their engines- give Bern a call.

Thanks for the heads up John- inspections are needed and hard to do since we do not go under our coaches too often.

Cya down the road.
Ted & Karen
2001 U270 36' - sold after 12 years full timing

Re: Heads up for all? (Inspect your hydraulic hoses for wear damage)

Reply #2 –
Good reminder John, after reading the post on the incedint with Piku, I went to lookin and found a couple that needed a fix.
Andy & Eileen
MONTROSE COLORADO
1992 U300  40' 6V92 TA
2016 4 Runner
1998 Jeep Grand cherokee

1998 Jeep Grand Cherokee) Build # 4135 Skp# 122921

Re: Heads up for all? (Inspect your hydraulic hoses for wear damage)

Reply #3 –
It would appear that hose is particularly vulnerable.  In my case the small fuel line between the filter and the pump is what damaged the radiator fan hose.  I will probably go through and replace all of them once we aren't on the move again as it's fairly cheap insurance.

Re: Heads up for all? (Inspect your hydraulic hoses for wear damage)

Reply #4 –
The hose that has caused concern for me is the line that runs from the reservoir across the beam of the chassis, down under and into the radiator.  It hangs down below the frame rail and it gets scrubbed when  an elevated transition is crossed.  Great engineering.. pc

 
S/W Houston 95" U320C SE/40' 
Build #4778  Cummins M11
Repairs & Covered RV Parking (BAO)
PPL is close..

Re: Heads up for all? (Inspect your hydraulic hoses for wear damage)

Reply #5 –
Keep looking for and finding rub problems.  Just put some protection on a generator fuel line and radiator hose in the front left compartment.

I've fixed several back in the engine compartment also.

It is an on-going watch item.

Rich
Rich and Peggy Bowman
2002 U270 3610 WTFS, build #5939--"Freedom"
2022 Jeep Grand Cherokee Summit 4xe
SMI AirForceOne brake system
PakCanoe 15

Re: Heads up for all? (Inspect your hydraulic hoses for wear damage)

Reply #6 –
Quote from: pocketchange –
The hose that has caused concern for me is the line that runs from the reservoir across the beam of the chassis, down under and into the radiator.  It hangs down below the frame rail and it gets scrubbed when  an elevated transition is crossed.  Great engineering.. pc

I wonder if that wasn't FT's doing as in my coach none of the lines run below the frame rails.  I want to be annoyed at how FT ran the hoses but I can't imagine how I would do it better.  With the retarder, air lines, fuel, coolant and everything else in the area, there are just hoses running everywhere. 

Re: Heads up for all? (Inspect your hydraulic hoses for wear damage)

Reply #7 –
Thanks John, it's on my list.
Dick, '03 U320 40' Tag, 2 slides, Coach #6075
Full Timers
2009 Honda CR-V

Re: Heads up for all? (Inspect your hydraulic hoses for wear damage)

Reply #8 –
Quote from: piku –
I wonder if that wasn't FT's doing as in my coach none of the lines run below the frame rails.  I want to be annoyed at how FT ran the hoses but I can't imagine how I would do it better.  With the retarder, air lines, fuel, coolant and everything else in the area, there are just hoses running everywhere.

FT likely noted the engineering (design) issue and moved this fitting to a location other than the bottom of the radiator/cooler (I would hope.)  pc
S/W Houston 95" U320C SE/40' 
Build #4778  Cummins M11
Repairs & Covered RV Parking (BAO)
PPL is close..
 

Re: Heads up for all? (Inspect your hydraulic hoses for wear damage)

Reply #9 –
95' being more or less the first year of the Unicoaches, some teething problems were inevitable. I imagine there were many below the surface changes over the first few years. Heck, there are changes or little differences in coaches of the same model and year with build numbers not that far apart. I still haven't found the location of our AGM module ::)
Don
Quote from: pocketchange –
FT likely noted the engineering (design) issue and moved this fitting to a location other than the bottom of the radiator/cooler (I would hope.)  pc
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Don & Tys
1999 U270 3602 WTFE #5402
Xtreme Stage 1 w/Headlight, Step Conversion, etc.
2009 Honda Fit Sport with Navi
Freedom is NOT "just another word for nothing left to lose"... with apologies to Kris Kristofferson