TM 55-1510-219-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
ENGINE RUNUP (CONT)
i. Cabin climb indicator - Check for descent
indication within 10 to 15 seconds, then
release test switch.
j. Repeat the above procedure for the right
bleed air control valve.
k. Left and right bleed air valve switches -
OPEN.
l. Cabin altitude indicator - Set to planned
cruise altitude plus 500 feet (if this
setting does not result in a CABIN ALT
indication of at least 500 feet over
takeoff field pressure altitude, adjust as
required).
m. Rate control - Set.
n. Cabin pressure dump switch -Set to
PRESS position.
*11. Generators and regulators - Check
C1-C6
by
observing
volt-loadmeters
for
the
following conditions:
a. Positive charging rate.
b. 27.5 to 29.0 volts.
c. A load indication not exceeding 0.85.
d. Turn generators on one at a time to
insure that each generator comes on
line.
e. Voltmeters must read within 1 volt of
each other.
2-30
