REPLACE RADIATOR AND SEAL (M548A1) -- Continued
Wear safety goggles while using compressed air. Don't take a chance on eye injury or blindness.
Clean radiator fins with special tool:
The cleaning tool is designed to remove deposits of sand, oil, clay, and other debris from cooling fins of radiator
while installed in carrier.
It consists of two tubes connected to a mixing head which produces two high pressure jets of liquid and air mixture.
The air supply tube has a push button valve with 3/8 inch (10 mm) female pipe thread for connection to a 5 cubic
foot (2 m) 100-150 psig (7-11 kg/sq cm) air supply.
The liquid supply tube is attached to a 3/8 inch x 20 feet (10 mm x 6 m) rubber hose for siphoning from a suitable
Mix a solution of detergent and water or nontoxic nonflammable solvent and water. Mix one part of detergent or
solvent to about five parts of water.
Cover all exposed openings of engine.
Connect tool to air supply and insert hose in container of solution.
Saturate front and back of radiator with solution. Soak for about 10 minutes.
Remove heavy deposit from face of radiator using a brush that will not damage fins.
Blast radiator with air and liquid mixture, holding tool approximately 1/2 inch (13 mm) from face of radiator.
Alternate from back to front until a good flow of liquid through radiator is seen over entire area. Use thumbscrew
and steel strip to lock radiator cleaning tool in any configuration needed to reach all areas of radiator.
Wash engine parts and radiator with clear water. Remove hose from container. Use air to remove excess water.
Uncover engine openings. Place grille in place on hull.