TM 5-4310-384-13
3-38.
DRAIN COCK. This task covers:
a.
Inspection.
b.
Removal.
c.
Installation.
INITIAL SETUP.
a.
Tools. General Mechanic Automotive Tool Set, T1 5180-00-173-7033.
b.
Materials/Parts. Soap solution (Appendix E, Item 5).
c.
Equipment Condition. None.
d.
General Safety Requirements.
WARNING
Observe all Warnings and Cautions.
Never wear loose clothing or jewelry while inspecting or servicing equipment.
Beware of rotating shafts, pulleys and fans which could entrap personnel and cause serious injury.
INSPECTION.
NOTE
Air tank should be under pressure to check drain cock for leaks.
a.
Run compressor until unit kicks off (tank pressure close to 190 psi).
b.
Apply soap solution to drain cock (1) and check for leaks. If bubbles appear, tighten drain cock (1).
c.
If leaks continue, replace drain cock.
d.
Inspect for corrosion or damage. Replace if defective.
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