tafe 35 di

Anyone know the best way to flush out and clean the Fuel tank and diesel fuel system on a 1995 TAFE 35 Di farm tractor? Unfortunately they don't make the TAFE any longer and our local dealer has gone out of business, so even the mechanics with the knowledge aren't available... Between a rock...

1995 TAFE 35 DI tractor Fuel System filter fit... Does the inline fuel filter in the glass bowl fit with the spring on the end of the filter against the fuel pump or the end of the glass bowl? I was cleaning out the fuel system and priming it but didn't remember which end of the filter fits in...