Engine System - Operation/How the 37 kW auxiliary drive works Both idler gear and output gear are supported by ball bearings. Gears and bearings are splash-lubricated. Splash oil collected on top of bearing bosses (A) is directed down through a hole in each boss to lubricate the bearings. RG5176 -UN-30NOV88 CD,3274,G205,8 -19-15MAY92 Auxiliary gear cover (A) supports the outer bearing race for both the idler and output gear assemblies. Two dowel pins (B) are used to properly align the auxiliary gear cover and timing gear cover. RG5177 -UN-30NOV88 CD,3274,G205,9 -19-15MAY92 205 9 CTM3274 (01JUL99) 205-9 Saran Liter Engines 060799 PN=322