|
| |
TM 5-4320-306-24
2-20. REPLACE/REPAIR AIR VALVE COVER ASSEMBLY (Continued)
CLEANING/INSPECTION:
WARNING
Dry cleaning solvent P-D-680 (safety or Stoddard's Solvent) is potentially dangerous. Avoid
repeated and prolonged breathing of vapors and skin contact with the liquid. Do not use near
open flame, arcing equipment, or other ignition source. Always wear eye protection and protective
clothing. The flash point of P-D-680 is 100° to 138OF (380 to 590C).
Death or serious injury could occur if compressed air is directed against the skin. Do not use
compressed air for cleaning or drying unless the pressure is/has been reduced to 30 psi (2. 11
kgcm2 ) or less. When working with compressed air always use chip guards, eye protection, and
other personal protective equipment.
1
Clean all parts with dry cleaning solvent Dry with compressed air.
2
Inspect shutoff valve (2), bushings (3 and 5), and 90-degree elbows (1 and 4) for cracks, rust, corrosion, and for
damaged or stripped threads. Replace parts if severely damaged or rusted.
3
Inspect air valve cover (7) for cracks, rust, or corrosion, and for damaged or stripped threads. Inspect mounting
surface Make sure it is smooth and flat with no nicks or burrs.
4
Inspect air release valve for rust or corrosion
Inspect float (1) for holes and cracks Inspect
needle (2) and seat for wear, grooves, or ridges
Check all threads for damage. Check levers (3
and 4) and lever pins (5) for straightness Check
that lever pins (5) and retaining rings (6) are
secure Check that all parts move freely Replace
air release valve if any parts are severely
damaged.
REPAIR:
1
Repair minor nicks or burrs on air valve cover (7) and/or smooth out mounting surface with crocus abrasive cloth
Clean interior or mounting surface. Clean and refinish outside surface Remove only a minimal amount of
surface material, replace if necessary.
2-80
|
