Table 3-6. Unit Troubleshooting Table. -- Continued
Test or Inspection
AIR DRIER CONSTANTLY CYCLING OR PURGING.
Ensure air pressure is drained to 0 psi (0 kPa) before taking off any air components. If pressure is not
released, components could blow off and harm personnel. The IHMEE air system is pressurized to
119 psi (820 kPa). Do not drain air from a tank with any part of body in air spray path. Skin
embolisms and/or debris in eyes can occur from released pressure. Failure to comply may result in
injury or death to personnel.
Check air system for leaks in lines (1) and fittings (2).
If a leak is present, tighten loose connection, or replace defective fittings (2) or lines (1) (Para 15-5 or
Check governor (3) for leaks and ensure governor has correct cut-in/cut-out pressures of
120-125 psi (827-862 kPa).
If governor (3) cut-in and cut-out pressures are incorrect, adjust to correct specification of
If governor (3) is defective or will not adjust, replace governor (Para 15-9).