Kazan Helicopters Mi-17-1V Flight Manual page 178

M,,-17 -1B. Flight manual
meter readings by 6.
Note: The windshield heaters will become energized only if the
ambient temperature is below the heat control setting (20°).
(f) Illuminator of the R ENG ANTI-ICE (060rPEB .QBVlr. nPAB), R
DUST PROT FWD (nPB.
my
nEPE.QH), R DUST PROT REAR
(nPB.
my
3A.QH) annunciators indicates that the valves controlling
supply of hot air to the right engine air intake and dust protection de-
vice are open.
(g) Switch off the anti-icing system by selling the ammeter selector
switch to OFF (BbIKn). On the anti-icing system control panel set the
MAN-AUTO (ABTOM) and depress the anti-icing system switching
off button. The ANTI-ICE ON (nOC BKmOLJEHA), R ENG ANTI-ICE
(060rPEB .QBVlr. np), R DUST PROT FWD (nPAB.
my
nEPE.QH), R DUST PROT REAR (nPAB.
my
3A,QH) annunciators
should go out.
Functional check of the engine anti-icing system and windscreen
heaters can be performed independently from a functional check of
the main and tail rotors blade anti-icing. To functionally check the
engine anti-icing system set the ENG DUST PROT LEFT (.QBVlrAT
n3Y nEB) selector switch to ON (BKn) and observe the L ENG
ANTI-ICE (060rPEB .QBVlr. nEB), L DUST PROT FWD (nEB.
my
nEPE.QH), L DUST PROT REAR (nEB.
my
3A.QH) annunciators to
come on.
(h) Set the ENG DUST PROT RIGHT (.QBVlr.
my
nPAB) selector
switch to MAN (PYLJHOE) and observe the R ENG AHTI-ICE
(060rPEB .QBVlr. np), R DUST PROT FWD (nPAB.
my
nEPE.QH), R DUST PROT REAR (nPAB.
my
3A,QH) annunciators
to come.on.
(i) Set the ENG DUST PROT LEFT (.QBVlr.
my
nEB), ENG DUST
PROT RIGHT (.QBVlr.
my
nPAB) selector switches to OFF (BblKn)
and AUTO (ABTOMAT) respectively. The L ENG ANTI-ICE
(060rPEB .QBVlr. nEB), L DUST PROT FWD (nEB.
my
nEPE.QH), L DUST PROT REAR (nEB.
my
3A.QH) , R ENG ANTI-
ICE (060rPEB .QBVlr. nPAB), R DUST PROT FWD (nPAB.
my
nEPE.QH), R DUST PROT REAR (nPAB.
my
3A.QH) go out, and
the electric actuators close the valves and get de-energized.
Notes: 1. With the engine anti-icing system turned on, the turbine
inlet temperature rises by 25 to 50°C and the gas gen-
erator rotor speed may rise by 1 to 2%, thus indicating
that hot air is supplied to the anti-icing system.
2. At ambient temperatures above +15°C energize the an-
tiicing system at engine power not exceeding normal.
After completion of the anti-icing system functional check make sure
that the Voltmeter selector switch is set to 115, the anti-icing system
GENERAL MAN-AUTO (06Ll.\EE PYLJH-ABTOM) selector switch is
set to AUTO (ABTOM), the ENG DUST PROT RIGHT (.QBVlr.
my
nPAB). W/S (CTEKOn), ice detector selector switches are set to
AUTO (ABTOM) and the ENG DUST PROT LEFT (.QBVlr.
my
nEB)
selector switch is set to OFF (BbIKn).
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