TM 55-2840-231-23
1-41. Engine Container - Internal Pressure and Humidity Check
INITIAL SETUP
Applicable Configuration
Consumable Materials
All
Desiccant (item 8, Appendix D)
References
Para 1-30,1-43
Table 1-5
Procedure 7, Troubleshooting Chart
LOCATION/ITEM
REMARKS
ACTION
ENGINE CONTAINER/
Check the internal pressure and humidity within
24 hours after the container is pressurized.
Check the pressure and humidity immediately
prior to shipment if the engine is to be shipped.
If the internal pressure is not within 0.5 psig of
the value shown in table 1-5, repeat procedures
in paragraph 1-30, item 3, steps b and c.
The humidity indicator (see figure) is normally
light blue in color. At 40 + or -3 percent
relative humidity; the color will change to light
1. Internal Pressure
Check
2. Humidity Indicator
Check
lavender or lavender pink.
a. The humidity indicator
may be light lavender
or lavender pink when
the container is pres-
surized and should
change to light blue
within one to two
hours. If it does not
change to light blue,
replace the indicator.
1-55
