CHECK OUT YOUR FILTERS KEEP YOUR EYE ON 'EM. You've got 4, and 3 of them can gang up on you any time. That is, intakes on engine air and compressor air can choke up within min- utes of each other, and you'd better be ready with fresh underwear for both when it hap- pens. Then you have to watch what goes on in that oil separator ele- ment-it's strictly not built for overtime work. The 4th one, on the engine oil, you can't ne- glect either. -- Here is the word on the critical ones. ITEM MFR CODE PART NUMBER Engine Air, Davey 250's 18265 P10-564? Engine Air and Compressor Air Intake, Joy 250 s (FSN 2940-225-4832) 00736 200146-07 Compressor Air, Davey 250's. 18265 P10-3055 Oil Sepaialor, Davey 250 s 00736 200508 Oil Separalor. Joy 250 s 00736 200658 What, only one FSN? Correct-but you can order 'em by part number. And there's a little trick that'll provide life insurance for those air intake insides, especially on your Davey, if you don't have a muffler.