TM 10-3930-669-20 3-7.  ENGINE OIL COOLER REPLACEMENT. This task covers a. Removal b. Cleaning/Inspection INITIAL SETUP Tools and Special Tools Tool Kit, General Mechanic's: Automotive (Item 1, Appendix B) Equipment Condition Wheels chocked (TM 10-3930-669-10) Cab removed (Para 15-2) Fuel pipes removed (Para 4-5) a. Removal (1) Loosen two fittings (1) on oil cooler (2). (2) Remove three screws (3) and washers (4) from oil cooler (2). (3) Remove oil cooler (2) and three washers (5) from engine (6). 3-28