Inspection-Acceptance and Rejection Criteria
The coolers must be inspected to ensure that the core and oil cooler screens are clean. Check for cleanliness of the cooler
core by shining a flashlight or other visible light through the core.
Proper eye, skin, and clothing protection must be worn while operating the cleaning tool or serious
injury may occur.
Do not exceed 90 pounds per square inch (psi) (621 kilopascals [kPa] ) when cleaning, or damage to the
cooler may occur.
Oil cooler and screens must be removed in order to use the cleaning tool.
The cleaning tool is designed to remove deposits of sand, oil, clay, and other debris from the oil cooler
cooling fins while installed in the vehicle. It consists of two tubes connected to a mixing head which
produces two high-pressure jets of liquid/air mixture. The air supply tube has a push button valve with a
1/4 in. (6.4 mm) female pipe thread to connect to a 5 cubic-foot (142 liter [L] ), 5090 psi (345621 kPa)
air supply. The liquid supply tube is attached to a 3/8 in. (9.5 mm) inside diameter (i.d.) by 6 foot (1.83
meter) rubber hose for siphoning from a suitable clean container. The cleaning agent can be a solution of
detergent and water, or nontoxic, nonflammable solvent and water. Mix one part of detergent or solvent
to approximately five parts of water. A solution of detergent or solvent and water is recommended.
Use a standard military 5-gallon (19 L) water can to hold the soap solution or cleaning solvent.