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Enstrom TH-28/480 Series Maintenance Manual Supplement 8
G1000H Integrated Flight Deck System
May
14/14
Page
1-45
(17) Verify an audible ping is heard in the crew headset.
(18) Acknowledge by pressing the
MASTER CAUTION
annunciator/ switch.
(19) Verify the MASTER CAUTION annunciator is extinguished and
ENG OIL
PRESS
and
DC GENERATOR
CAS alerts are steady on.
(20) Pull the ENG WARNING (CB173) circuit breaker.
(21) Verify the ROTOR RPM and ENGINE OUT audio horns are extinguished.
(22)
Verify
the
ROTOR RPM
and
ENGINE OUT
annunciators are extinguished.
(23) Pull the HR MTR (CB 121) circuit breaker.
(24) Connect a pressure source to the engine oil press transducer and apply
pressure.
(25) Verify that the
ENG OIL PRESS
CAS alert extinguishes at 51 psi.
(26) Verify that the
ENG OIL PRESS
CAS alert is flashing at 131 psi.
(27) Reduce the pressure to zero and disconnect the pressure source.
(28) Push the collective down.
(29) Push in ENG WARNING (CB173) circuit breaker.
(30) Verify that the
DC GENERATOR
and
ENG OIL PRESS
CAS alerts are
extinguished and the
ROTOR RPM
and
ENGINE OUT
annunciators are
steady on.
(31) Push in the HR MTR (CB 121) circuit breaker.
B. Engine Oil Temperature CAS Alert
(1)
Remove the engine oil temperature probe and heat probe to 225°F/107°C.
(2) Verify that the
ENG OIL TEMP
CAS alert and the
MASTER CAUTION
annunciator is flashing.
(3)
Verify an audible ping is heard in the crew headset.
(4)
Acknowledge by pressing the
MASTER CAUTION
annunciator/ switch.
(5)
Verify
the
MASTER CAUTION
annunciator is extinguished and
ENG OIL
TEMP
CAS alert is steady on.
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