ARMY TM 9-2815-257-24 AIR FORCE TO 38G1-128-2 MARINE CORPS TM 10155A/2815-24/3 4-14 4-10.  OIL PUMP MAINTENANCE This task covers removal, cleaning, inspection, and installation. INITIAL SETUP Tools: Equipment Condition: Tool Kit, Master Mechanic (Item 3, App. B, Sect. III)     Engine oil drained (Para. 3-5) Parts/Materials: Oil, Lubricating (Item 1-5, App. E) Solvent, Dry Cleaning (Item 7, App. E) Rag, Cleaning (Item 8, App. E) Grease, Automotive (Item 9, App. E) A.    REMOVAL. CAUTION When removing crankcase cover, be careful not to damage oil seal. 1. Release crankcase cover (1, Figure 4-9) from cylinder block by removing fifteen screws (2).  Carefully separate crankcase cover from engine crankcase. 2. Remove cover gasket (3).  Discard if damaged or deformed. 3. Remove oil pump cover (4) from crankcase cover (1) by removing three screws (5).  Remove and discard O-ring (6). 4. Remove  parallel  pin  (7)  and  slide  oil  pump  (9)  out  of  crankcase  cover  (1).    Remove  outer  rotor  (8).   Remove and discard governor assembly (11) and pin (10).   B.    CLEANING.   Cleaning solvents are flammable and toxic to eye, skin, and respiratory tract.  Skin and eye protections are required when working in contact with cleaning solvents.  Avoid repeated or prolonged contact.  Work in well ventilated area only.  Keep away from heat, sparks, and open flame.  Do not smoke while using cleaning solvent.  Failure to observe this warning can result in injury or death to personnel. 1. Clean components with cleaning solvent and a clean rag.  Allow to air dry. 2. Remove any old gasket material or grease from crankcase cover and engine crankcase mating surfaces. WARNING