HWH, at one time, had a "recall" on some hydraulic hoses in Winne motorhomes around the vintage of yours. the problem was the hose end connections. If you can get some info imprinted on the hose and call HWH I'm sure you will get complete info. maybe they'l even cover a replacement hose if that's what it is.
'02 Ultimate Advantage 40J Spartan MM - Cummins ISC
2013 Jeep Rubicon JK Unlimited