TM 1–1520–238–T–1
Change 5
3–19
3–3
APU – OPERATING INSTRUCTIONS (cont)
3–3
a. On ELEC PWR panel, set GEN 1 switch to TEST and
hold.
b. Verify GEN 1 indicator on pilot/CPG caution/warning
panel (fig. 2–20/fig. 2–40) is not lit.
c. Release GEN 1 switch to OFF/RESET.
d. Set GEN 2 switch to TEST and hold.
e. Verify GEN 2 indicator on pilot/CPG caution/warning
panel is not lit.
f. Release GEN 2 switch to OFF/RESET.
g. Set GEN 1 switch to GEN 1.
h. Set GEN 2 switch to GEN 2.
13. Verify CPG crew station switch/control settings as follows:
CPG Station
PANEL
SWITCH/CONTROL
POSITION
(set to)
FIRE
MUX
PRI
CONTROL
FCC/MUX
ON
(fig. 2–33)
SYSTEM FC SYM
GEN
FC SYM GEN
SYSTEM TADS
OFF
DEK (ADC)
(fig. 2–49)
DATA ENTRY
STBY
CAUTION
If XMSN 1 and XMSN 2 temperatures
exceed 130C (266F), shutdown APU.
Allow the transmission fluid to cool for 30
minutes prior to resuming APU ground
operations; or transmission fluid may be
cooled by authorized personnel operating
engine with rotor turning.
Do not operate the APU for more than 5
minutes at a main transmission oil
temperature of 120C (248F). Shutdown
APU to prevent damaging accessory gear
box components.
