Group 220 Fuel System - Operation and Tests CTM3274 (01JUL99) 220-1 Saran Liter Engines 060799 PN=340 FUEL FILTER OPERATION Fuel enters the filter at (3) and flows through a first stage filter medium (5) and a second stage filter medium (6) before flowing through outlet (1) to the fuel injection pump. The filter media are housed in a metal sediment bowl and are glued to the bowl as one assembly. -UN-23MAY95 Since water and other contaminants may settle at the bottom of the sediment bowl, a drain plug (4) is provided to permit their removal. An air vent (2) enables air in the system to be expelled L57057A to the outside through the filters when the bleed plug is removed.
Rectangular filter NOTE: On recent engines the round fuel filter may have an one-stage element. 1—Fuel outlet 2—Air vent plug 3—Fuel inlet 4—Drain plug 5—First stage filter 6—Second stage filter -UN-08MAR95 CD30335 Round filter CD,3274,G220,4 -19-04JAN99 220 1