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Rubbing hoses & cables

May 05, 2013, 11:47:06 am

Our coaches have hundreds of cables & hoses running together and it is very important to check them from time to time to be sure they are not rubbing on each other or on brackets and nearby metal.  Liberal use of redundant cable ties and protections like split loom or other material will go a long way to prevent hoses from fraying or cables from shorting out.

Recent discussions on breaking hydraulic hoses are examples of what could happen if protections are not made. 

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Re: Rubbing hoses & cables

Reply #1 – May 05, 2013, 03:26:37 pm

I also learned this the hard way.  I had a hydraulic hose rub through and lost power steering and cooling fan.  All hoses and and cables that are near the frame or another component are wrapped with old heavy heater hose to prevent chafing.  David

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Re: Rubbing hoses & cables

Reply #2 – May 05, 2013, 06:04:34 pm

I had the same experience while driving in the Yukon, while on way to Alaska.
Hydraulic line rubbed through where it apparently rested on a bracket.
Lost all hydraulic fluid (oil). First noticed soft mushy steering and then saw temperature way up. Pulled into a pullout. Oil all over back, car and on road.
After a day or so found a shop in a lumber town about 40 mile south who made me a new line. (slightly shorter). Also had it wrapped with some protective covering. Installed and replaced the oil and was on my way.
I now carry some metal splicing things, which I hope could work for temporary repair.
I also got a large wrench that is needed for the Hydraulic line and some clamps.
Eric

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Re: Rubbing hoses & cables

Reply #3 – May 05, 2013, 06:36:00 pm

Pay particular attention to the fuel lines. I have one that nearly rubbed through but I spotted it in time before it sprayed fuel and caught fire. I put a large heater hose around it and I feel back there to be sure it isn't rubbing every time I do my preflight inspection before starting the engine.

Scott

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