6. Once the test is complete, release the air pressure by depressing the pressure release valve on the hand pump hose,
then disconnect the quick coupler and adapter assembly.
7. Maintenance – After testing process in Radiator Test:
t Keep the adapter connected to the pump as you had set up while performing the actual test. Operate the pump
several times to dissipate moisture and/or coolant that may have remained in the adapter and pump.
t Oil the hand pump in order to lubricate the piston and prevent corrosion and internal damage.
8. Store the radiator pressure tester kit in its carrying case and keep the kit in a clean, dry, safe location out of reach of
children and other unauthorized persons.
TO TEST FOR LEAKS IN ORIGINAL RADIATOR CAP:
1. Choose the correct radiator cap connector (43302-5A or 43302-5B) and
correct steel radiator cap (43300-2, 43300-3, or 43300-4) for the correct
vehicle being tested from the test kit. Fasten the original radiator cap to the
radiator cap connector (43302-5A or 43302-5B) and then fasten the steel
radiator cap (43300-2, 43300-3, or 43300-4) from the test kit to the other end
of the radiator cap connector (43302-5A or 43302-5B).
2. Remove the hand pump assembly (43300-1) from the test kit and fasten the
quick coupler at the end of the hose to the radiator cap (43300-2, 43300-3,
or 43300-4) securely. Operate the hand pump until reaching the pressure
recommended by the vehicle manufacturer. - DO NOT OVER PRESSURIZE.
3.
Check the pressure reading on the gauge immediately after reaching the
vehicle manufacturer’s recommended pressure. If the pressure drops, there
is a leak in the radiator cap. After pressure testing is completed, press the
release button on the quick coupler until the reading on the gauge reads 0.
Remove quick coupler from radiator cap and then remove the original radiator
cap from the original radiator cap connector.
Fig. 3
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