JD 300 Industrial loader, is blowing the filter housing off!

[wdchyd]

It is never a fluke accident!!
my only idea is...that there was frozen water on the bottom of the reservoir, that melted when system temperature increased above 32F....water starts moving around and when machine is left over night again, water chrystals freezes, and totally jam up in the filter....next morning ...pooof...

X 2.......:thumbsup:

 

[MAYTAG MAN]

I too blew out the filter seal on the underside filter housing and when I took off the housing, no filter. WTF :confused2: I also noticed some water dripping out along with the transmission fluid. OH OH, is there supposed to be a filter? If so, what is the number and is there something at the bottom of the filter like a spring?

 

[MHarryE]

Not sure of your system design. Assume from what you said it is a pressure filter. Cold oil = very viscous. Relief valves are set with oil at at least 40 degrees C (factory setting). Higher viscosity oil results in a higher relief value and yes, it can be enough to blow the seal out of a filter. At our plant we run machines at low idle for 15 minutes in below zero weather, at least 5 minutes from 0 to freezing, to keep from damaging filters. I was more precise in the operator's manual giving a temperature vs idle time table. Plant is Minneapolis so probably not far off your temps. In cold weather the shipping crew takes the next morning's shipments inside with a big fork lift so they are warm enough that they don't need the long warm up when the truckers arrive, but every once in awhile shipping would call us with a trucker having run the engine up in very cold weather and having a leak on the truck bed. I would then have the nearest dealer go out and replace the filter.

 

[wdchyd]

I too blew out the filter seal on the underside filter housing and when I took off the housing, no filter. WTF :confused2: I also noticed some water dripping out along with the transmission fluid. OH OH, is there supposed to be a filter? If so, what is the number and is there something at the bottom of the filter like a spring?

Could it be the filter element crushed with the pressure and imploded and is pushed into the hyd system in chunks..??

Water in system that freezes will plug up a filter and do this like Akkaman said