TM 1-1520-240-MTF
2-41
STARTING ENGINES (CONT.)
B* 23. Parking Brakes/Swivel Locks.
a. Wheel parking brakes — Reset. Check
PARK BRAKE ON, 712 caution light and
Master Caution, 714A Advisory light —
On.
F b. SWIVEL switch — Check UNLOCK and
LOCK, (check status of swivels down and
locked or down but not locked).
WARNING
Anytime the ramp isolation switch is moved
from one position to another ensure NCM’s
hand is clear of the ramp control handle.
24. Ramp Isolation — Check as follows: (Not
required if completed during power on checks.
Check emergency control as required, see
section IV).
a. Place ramp control lever in the DOWN
position until ramp rests on the ground, then
STOP.
b. RAMP isolation switch — OFF.
c. RAMP control lever — UP. Check that ramp
does not move, then STOP.
d. RAMP isolation switch — ON.
e. Adjust ramp as necessary.
B 25. Cruise Guide Indicator — Test FWD and AFT.
Check pointer in white test band within 8
seconds.
B* 26. Altimeters — Set local barometric pressure
(tower setting) and compare with field elevation.
If more than a 50 foot error is noted, corrective
action should be initiated. Unreliable for flight if
more than a 70 foot error exists.
