TM 1-1520-240-MTF
2-46
STARTING ENGINES (CONT.)
(4) With slow smooth flight control inputs,
check each axis for smoothness of
operation and full range of travel.
d. FLT CONTR HYDRAULIC switch — BOTH.
NO. 1 HYD FLT CONTR caution light
— Out.
NOTE
The flight engineer shall observe No. 2 system
returns to normal operating pressure as No. 1
pressure drops below 2000 psi. The same is true
for No. 1 System when No. 2 drops below 2000
psi.
e. Control interlock — Simulate failure of the
NO. 1 and then NO. 2 hydraulic boost
systems by the following.
(1) FLT CONTR HYDRAULIC switch —
NO. 1 ON.
F (2) POWER XFR NO. 1 — OFF. Check
NO. 1 HYD FLT CONTR caution light
out, then on. NO. 2 HYD FLT CONTR
caution light on then out. Flight engineer
announce the pressure of the NO. 1
system when the NO. 2 system returns
to normal pressure.
(3) POWER XFR NO. 1 — ON. Check NO.
1 HYD FLT CONTR caution light out.
NO. 2 HYD FLT CONTR caution light
on.
(4) FLT CONTR HYDRAULIC switch —
NO. 2 on.
