MD Helicopters MD900 with PW206E, Flight Manual

Page: 354 / 450

CSP–900RFM206E–1
ROTORCRAFT FLIGHT MANUAL
MD900 With PW 206E
Handling Servicing
and Maintenance
Original
8–44
ENGINE OUT/LOW ROTOR WARNING CHECK
F
Engine control switches
FLY
F
Collective
INCREASE TO A CLP OF >5% FOR MORE
THAN 5 SECONDS
F
Collective LOWER TO A CLP OF 0%
F
Engine control switches SWITCH TO IDLE AND NOTE THE
FOLLOWING
F
ENG OUT warning light flashes and low rotor RPM tone is activated for one cycle. As
rotor RPM decreases through 88%, the low rotor RPM tone will reactivate until the
AOG logic disables the warning.
ENGINE WASH
Engine Water Wash − Desalination
Open main transmission access door (Ref. Figure 8−6 and Figure 8−7).
NOTE
: If cleaning agent is to be used, prepare solution and compressor wash system
in accordance with related manufacturers’ publications (Ref. RMM, Section
01–00–00)
Use of correct mixture as specified in the PWC Maintenance manual
is very important, not only when the temperature is below freezing
at the time of washing, but also if the temperature is expected to
be below 2
°
C (36
°
F) between time of washing and the next start.
Connect cleaning solution or water source to engine wash panel using AN
type fittings.
NOTE
: To prevent precipitation of deposits through the use of hard water, engine must
be allowed to cool to below 65
°
C (150
°
F). Minimum cooling period of 40 minutes
must be allowed since the engine was last operated.
Ensure inlet particle separator and heat / defog shutoff valves are
turned off.
Do not motor engine for more than 30 seconds.
NOTE
: Ensure cleaning solution or water source pressure of 60–82 PSI .
Perform dry engine motoring run; when N
G
reaches 5%, inject water solution
into air inlet case.
Close tank valve as soon as N
G
falls to 5%.
CAUTION
CAUTION