I'm seriously considering changing my L3130-HST drain plugs to FEMCO valves. Does anyboby have the sizes/thread pitch for the engine and hydarulic drain plugs?
Would seriously reconsider as you would need 4 for the transmission on the L3130 and two for the engine. You may get by with one on transmission to drain bulk of oil but you still need to drain the other 3 points With changing engine oil at every 100 I might think about a drain valve but changing the transmission at 50 and 400 hours I do not think it is worth it. The engine and transmission plugs are on the lowest part of the tractor and if you use your tractor like a lot of people do in brush and other situations I would not risk loosing all the oil due to a little brass valve hanging down and getting wacked by a stick. Just got done putting one through the radiator hose just missing fan and radiator and I am careful, things do happen. If you are worried about all the hydraulic oil, for less then $20 I got a 15 gallon metal tub and drain the fluid into that and then refill the old buckets to mix in with the chainsaw bar oil or run it in the old Massey as it does not need the cleanest oil.