TM 1-1520-240-MTF
2-54
STARTING ENGINES (CONT.)
60.
712 Minimum Beep Check:
a. NO. 1 & NO. 2 ENGINE BEEP TRIM switch
— Full DECREASE.
b. NO. 2 ENGINE CONDITION lever —
GROUND. Check NO. 1 ENGINE for
91-94% rotor rpm. Record data.
NOTE
Minimum rotor rpm is set during single engine
operation only. Dual engine operating rpm will be
somewhat higher. This increase in minimum rotor
rpm should not be considered as requirement for
readjustment.
NOTE
NO. 1 & NO. 2 ENGINE BEEP TRIM switch —
INCREASE then DECREASE if adjustment are
made.
c. NO. 2 ENGINE CONDITION lever —
FLIGHT.
d. NO. 1 ENGINE CONDITION lever —
GROUND. Check NO. 2 ENGINE for
91-94% rotor rpm and record data.
e. NO.
1
ENGINE
CONDITION
lever
—FLIGHT
61.
712 Bleed Band Check — (Refer to
Section IV).
62. 712 NO. 1 & NO. 2 ENGINE BEEP TRIM
switch — 100% rotor rpm.
