Apply 10 psi (69 kPa) air pressure to radiator and submerge radiator in a water tank. Check for air leaks. Straighten
bent fins as required.
Components of this locomotive are heavy and may be awkward to handle. Use
correct lifting procedures, indicated lifting devices, and/or assistance from other
personnel to avoid injury.
Use a suitable lifting device and lift radiator assembly (11) into place. Install four flat washers (10), capscrews (9),
lockwashers (8), and nuts (7).
Install radiator overflow hose (6) and connect union (5).
10. Install four hoses (4) and tighten hose clamps (3).
11. Close main drain valve (2) and fill radiator with a mixture of ethylene glycol antifreeze and water. Refer to TM 55-
225-12 for cooling system filling procedures. Install radiator filler cap (1).