ENGINE RUNUP (CONT)
m. Cabin pressure dump switch -
Set to PRESS position.
*11. Generators and regulators - Check
by observing volt-loadmeters for
the following conditions:
a. Positive charging rate.
b. 27.5 to 29.0 volts.
c. A load indication not exceed-
d. Turn generators on one at a
time to insure that each genera-
tor comes on line.
e. Voltmeters must read within 1
volt of each other.
f. Load paralleling must be with-
in 10% of loadmeter reading.
*12. Inverter volt-frequency meters -
Check voltage between 110 and
120 volts and frequency between
390 and 410 Hz.
*13. *Rudder boost - Check as follows:
a. Rudder boost /yaw control test
TEST. Check that RUDDER
(flight director annunciator
panel) is illuminated.
pedestal extension) - Depress to
yaw damper . Yaw
damper should not engage.