TM 5-4220-209-12&P Section II.  MAINTENANCE ALLOCATION CHART (1) (2) (3) (4) (5) (6) MAINTENANCE GROUP COMPONENT MAINTENANCE LEVEL TOOLS AND NUMBER ASSEMBLY FUNCTION C O F H D EQUIPMENT   REMARKS Replace X Repair X 2101 Valves Int & Exh Inspect X Adjust X Replace X Repair X 2102 Retainers, Springs & Guides Inspect X Test X Replace X 2103 Rocker Ass’y Inspect X Replace X Repair X 2200 Cyl Block & Crankcase Ass’y Inspect X Repair X 2201 Crankcase Ass’y Inspect X Replace X 2202 Piston & Con/rods Inspect X Repair X Replace X 2203 Bearings, Rings & Pins Inspect X Replace X 2204 Push Rods & Cam Followers Inspect X Replace X Change 1  A-8