5373 Air Activated Tube Tester
5
OPERATING INSTRUCTIONS
NOTE: See pages 6-9 for part numbers and illustrations of the 5373 as indicated in instructions below.
Prior to testing:
1. The tubes to be tested should be cleaned and any loose deposits or scale should be removed. If
the tubes have not been cleaned, any foreign materials present may be ejected during the testing
operation and may damage the test guns or injure the operators.
2. The operators should always wear safety glasses or a face shield when testing with the 5373 or any
type of pressure test guns.
3. If the tubes have been acid cleaned please check with Elliott Customer Service regarding the
compatibility of the test gun seals with the cleaning agent. Different types of elastomer seals are
available as replacements.
4. Make sure the test guns have the correct size Replacement Seal and Washer Set (2) for the tubes
being tested. The seals and washers are considered to be correctly sized if the OD of the seal is
between 0.02” to 0.06” (0.5mm to 1.5mm) smaller than the actual tube ID. Using seals that are too
small may cause any of the following: premature seal wear, jamming of the test gun in the tube, or
expulsion of the test gun from the tube end. Replacement seals for the 5373 testing guns can be
manufactured for any tube ID from 0.28” to 1.23” (7.1mm to 31.3mm). For tube ID’s larger than 1.23”,
refer to Tech Manual TM-11 for information on the 5373A Test Gun Package. The procedure for
replacing the seal and washer sets is outlined on page 5.
