TM 9-2815-225-34&P 3-26. OIL PAN REMOVAL THIS TASK COVERS: Removal INITIAL SETUP: APPLICABLE MODELS REFERENCES (TM) All LO 9-2320-273-12 LO 9-2320-283-12 SPECIAL TOOLS None TROUBLESHOOTING REFERENCES Para. 2-8 TEST EQUIPMENT None EQUIPMENT CONDITION Engine oil drained (LO 9-2320-273-12 or MATERIALS/PARTS LO 9-2320-283-12). Gasket (15434) 3032861 Four lockwashers (96906) MS35338-45 SPECIAL ENVIRONMENTAL CONDITIONS Work area clean and away from blowing dirt and PERSONNEL REQUIRED dust. Automotive repairman MOS 63H GENERAL SAFETY INSTRUCTIONS None LOCATION/ITEM ACTION REMARKS Removal NOTE Removal of oil pan is basically the same for M915/Big Cam I and  M915A1/Big Cam III. Big Cam I engines are equipped with a cast aluminum oil pan.  Big Cam III engines are equipped with a stamped steel oil pan. Perform step 1 for M915AlfBig Cam III only. Perform step 2 for M915/Big Cam I only. 1. Four screw-assembled Remove from cylinder block (2) washers (10) and engine and oil pan (4). shipping support (9) 2. Four screws (11) Remove from cylinder block (2) and oil pan (1). NOTE Two of the four screws may have been eliminated on newer M915A1/Big Cam III oil pans. 3. Four screws (7), Remove from oil pan (4) Screws (7) may have already been lockwashers (6), and (M915A1/Big Cam III) or oil pan removed if rear cover was removed. washers (5) (1) (M915/Big Cam I). Discard lockwashers (6). 4. Twenty-eight screws (8), oil Remove from cylinder block (2). Assistant will hold oil pan (4) pan (4) (M915A1/Big or (1) during removal of last Cam III) or oil pan (1) screw (8).  Discard gasket (3). (M915/Big Cam I), and gasket (3) FOLLOW-ON TASKS: For repair of oil pan (para. 3-43). For installation of oil pan (para. 3-81). 3-62