TM 1-1520-238-T-5
Change 4
7–135
7–45.
PRESSURIZED AIR SYSTEM – MAINTENANCE OPERATIONAL CHECK (cont)
7–45
M68-041
TRANS SWITCH
Figure 7–60.
Pilot FUEL Panel
Task
Result
k. On pilot FUEL panel (fig. 7–60), set TRANS
switch to OFF.
l. Secure access doors L325, T250L, T250R,
T290L and T290R (TM 1-1520-238-23).
m. On pilot power quadrant (fig. 7–61), set
NO 1 START/OFF/IGN OVRD switch to IGN
OVRD.
n. On pilot instrument panel, check that NG
RPM% indicator digital readout 1 (fig. 7–62)
stabilizes at 22% minimum.
If NG RPM% indicator digital readout 1 does not
stabilize at 22% minimum, go to paragraph 7–52.
o. Repeat steps m and n for engine 2.
If NG RPM% indicator digital readout 2 does not
stabilize at 22% minimum, go to paragraph 7–53.
