TM 9-2815-225-34&P 3-42.  OIL COOLER REPAIR (Contd) LOCATION/ITEM ACTION REMARKS a.  Disassembly (Contd) 2. Screw (25), lockwasher (26), Remove from housing (12). Discard lockwasher (26), gasket washer (27), head (28), (29), and preformed packing gasket (29), and preformed (30). packing (30) 3. Seat (24), disc (23),.  and Remove from housing (12). spring (22) NOTE The pressure regulator valve is located on the oil cooler support.  It controls oil pressure before oil passes through the filter element. 4. Plug (21), spacer (20), Remove from cover (15). spring (19), and plunger (18) 5. Six screws (14), lockwashers Remove from housing (12). Discard lockwashers (8) and (8), cover (15), and gasket gasket (13). (13) 6. Two screws (1), bracket (2), Remove from housing (12). Discard lockwashers (8) and four screws (9), lockwashers gasket (11). (8), cover (3), and gasket (11) NOTE To prevent hardening and drying of foreign substances, clean element as soon as possible after removal. 7. Two retaining rings (4), To remove from housing (12): preformed packings (5), and filter element (6) a.  Insert two long rods in outside row of element tubes opposite each other. b.  Place a flat bar on top of housing (12) and bundle face between rods, and rotate element in housing. c.  Remove retaining rings (4) and Do not use a sharp object to preformed packings (5). remove preformed packings (5), or damage to housing (12) or retaining rings (4) may result. Discard preformed packings (5). d.  Remove filter element (6) from Do not use a sharp object to housing (12). remove.  Filter element (6) may become damaged. 3-220