TM 10-3930-664-24 B.  CLEANING WARNING Observe cleaning solvent and compressed air warnings during cleaning   of   cooler   core.      Refer   to paragraph 1-24. 1.     Plug   cooler   core   and   soak   in   cleaning   solvent   to remove coolant deposits. 2.     Remove  plugs  and  back  flush  oil  passages  using cleaning   solvent.    Dry   using compressed air. 3.     Scrape gasket remnants from cooler sealing surface to ensure proper seal. 4.     Clean   remaining   components   in   accordance   with paragraph 1-24. C.  INSPECTION     1.     Inspect   oil   cooler   components   in   accordance   with paragraph 1-24. 2.     Inspect  cooler  core  joints  for  corrosion,  cracks,  or other damage. D.  TESTING     1.     Fill    water    pan    with    enough    water    to    allow    for submersion of oil cooler. 2.     Connect 70 psi (483 kPa) compressed air source to oil cooler. 3.     Apply compressed air and check for air leaks.  If air leaks are discovered, replace defective components. 2-77