TCH.1C-27J-2-27JG
2-71.5 CHECK OF FLAP TRAVEL AND CLEARANCE
(refer to figure
) , (refer to figure
) , (refer to figure
(refer to figure
) (Cont'd)
NOTE
If a hydraulic pressure of 1100 psi ± 50 psi
is not sufficient to operate flaps check
transmission for friction interference,
crawling or incorrect adjustments.
8.Set flap control lever (4) to UP. The flaps must retract
to up position.
9.Supply No. 1 and No. 2 hydraulic systems at 3000 psi,
(210 kg/cm ² ), flow at least 6.6 gpm (flow 25 l/min).
10.Set flap control lever (4) to FULL. Flaps must reach
the position shown in step 5. The position of the pair
of flaps must not differ by more than 1
°
. Extension
time must be 18.5 to 21 seconds.
11.Set flap control lever (4) to UP. The flaps must retract
to up position. Retraction time must be 18.5 to 21
seconds.
12.Set hydraulic system selection switch (1) (pedestal) to
ALT. FLAPS HYD SYS 2 light must come on.
13.Repeat operations described in steps 8. and 9.
Results must be the same.
14.Bring the flap control lever (4) from UP position to an
intermediate position between 20
°
and 25
°
corresponding to the longest notch on the grooved
sector. The outer flaps must extend to 22° 30' ± 1° as
read on the inclinometers (AGE NO. 00061) and on
the flight compartment indicator. The inner flaps must
extend to 10° ± 1° as read on the inclinometers (AGE
NO. 00061). The positions of the pairs of flaps must
not differ by more than 1 ° . Extension time must be
from 9.25 to 10.5 seconds.
(Cont'd)
27-50-10
2-545