k.
TAIL SERVO switch -NORMAL. Cau-tion and advisory legends out.
l.
BOOST switch -ON. BOOST SERVO OFF caution legend should be off.
.18. Stabilator -Check.
If any part of stabilator check fails, do not .y helicopter.
Change 2 8-9
a.
STAB POS indicator should be between 34° and 42° DN.
b.
TEST button -Press and hold. Check STAB POS indicator moves up 5° to 12°. MASTER CAUTION light and STABI-LATOR caution legend on; stabilator au-dio heard.
c.
AUTO CONTROL RESET switch -Press ON. Note that the STABILATOR caution legend and audio are off, and STAB POS indicator moves to 34° to 42° down. Press MASTER CAUTION to re-set the light.
d.
Either cyclic mounted stabilator slew-up switch -Press and hold until STAB POS indicator moves approximately 15° trailing edge up, release, stabilator should stop. STABILATOR legend and MASTER CAUTION lights on and beeping audible warning in pilot’s and copilot’s headsets. MASTER CAUTION -Press to reset au-dio tone.
e.
Other cyclic mounted stabilator slew-up switch -Press and hold until STAB POS indicator moves approximately 15° trailing edge up, release, stabilator should stop.
f.
MAN SLEW switch -UP and hold until stabilator stops. STAB POS indicator should be 6° to 10° up.
g.
MAN SLEW switch -DN and hold until STAB POS indicator reads 0°.
h.
AUTO CONTROL RESET switch -Press ON. STAB POS indicator should move 34° to 42° DN. STABILATOR cau-tion legend off.
*19. Avionics -On, check as required.
a.
PLS-BIT, modes as required.
b.
AUX ARC-222 -Check on.
c.
APX-100 -Check, then STBY.
*20. COMPASS switch -SLAVED. Set as re-quired.
21. Barometric altimeters -Set.
*22. Cyclic and pedals centered. Collective raise no more than 1 inch (to prevent droop stop pound-ing).
23. BACKUP HYD PUMP switch -OFF.
O.24. Blade deice system -Test as required.
Do not perform blade deice test when blade erosion kit is installed.
To prevent overheating of droop stops, blade deice test shall not be done more than one time within a 30-minute period when rotor head is not turning.
a.
Ice rate meter PRESS TO TEST button -Press and release.
b.
Ice rate meter indicator -Moves to half scale (1.0) holds about 50 seconds; then falls to 0 or below. ICE DETECTED leg-end and MASTER CAUTION lights on after 15 to 20 seconds into the test, and FAIL .ag should not be visible in .ag win-dow. Ice rate meter should move to zero within 75 seconds after pressing PRESS TO TEST button.
NOTE
PWR MAIN RTR, and PWR TAIL RTR fault monitor legends may .icker during tests in steps e. through q.
c.
BLADE DE-ICE TEST panel select switch -NORM.
d.
BLADE DEICE POWER switch -TEST.
e.
PWR MAIN RTR and TAIL RTR moni-tor legends -Check. MAIN RTR monitor legend may go on for 2 to 4 seconds. If either legend remains on for 10 seconds or more:
(1)
BLADE DEICE POWER switch -OFF. If either legend is still on:
(2)
APU generator switch and/or EXT PWR switch -OFF.
8-10 Change 2
f. TEST IN PROGRESS light -Check. The light should be on for 105 to 135 seconds.
Change 2 8-10.1/(8-10.2 Blank)
No other blade deice system lights should be on. PWR MAIN RTR and TAIL RTR monitor legends may go on momentarily near end of test. The TEST IN PROGRESS light should then go off.
Droop stop hinge pins and cams may be-come very hot during test. Use care when touching those components.
g.
Crewman touch each droop stop cam -Cams should be warm to touch.
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