TM9-2815-202-34 4-39.   OIL   COOLER   ASSEMBLY   REPAIR This  task  covers: a.  Cleaning  prior  to  Disassembly b.Disassembly c. Cleaning/Inspection d.  Assembly INITIAL    SETUP MODELS EXPENDABLE/DURABLE    SUPPLIES n All Cleaning solvent (App C, Item 10) Cleaning solution (App C, Item 9) Engine oil (App C, Item 16) TOOLS  AND  SPECIAL  TOOLS General mechanics tool kit (App B, Item 96) Air nozzle plate kit (App D, Item 7) Universal puller (App B, Item 71) Bar tool (App D, Item 4) Spring tester (App B, Item 93) Torque wrench (App B, Item 101 Plate kit (App D, Item 6) MANDATORY REPLACEMENT PARTS 39  Lockwashers  (App  F,  Item  93) 5 Gaskets (App F, Item 51) 1 Gasket (App F, Item 52) 1 Gasket (App F, Item 57) 4  Seals  (App  F,  Item  149) 1 Gasket (App F, Item 64) 2  Preformed  packings  (App  F,  Item  107) EQUIPMENT  CONDITION Para   Description 3-6 Oil  cooler  removed a.   Cleaning   Prior   to   Disassembly NOTE Do not clean oil cooler if an engine or transmission failure caused metal particles (from worn or broken parts) to enter lubricating oil. Replace tube bundle. (1)  Clean  engine  oil  section  of  oil  cooler  as  follows: (a) (b) (c) (d) (e) Remove two bolts (1) two Iockwashers (2), flange (3) and gasket (4) from oil cooler assembly (5). Remove two bolts (6) and two Iockwashers (2) securing flange (3), oil cooler bypass (7) assembly, and two gaskets (4) to oil cooler assembly (5). Remove metal tube (8), flange (3), and oil cooler bypass (7) assembly. Remove screw (9) securing retainer (1 O), spring (1 1), and valve (12) from oil cooler bypass (7). Install tube (8) with two flanges (3), three gaskets (4), and oil cooler bypass (7) to oil cooler assembly (5). Secure with four bolts (1 and 6) and four Iockwashers (2). 4-214 C h a n g e    1