Kazan Helicopters Mi-17-1V Flight Manual page 66

M.. -17-1B. Flight manual
I
POWER RATINGS
Cruising
RH twist grip
setting
Automatic
Idle
Fig.3.5 Schedule of Simultaneous Ground Test of Two Engines
1. - Cruising
2. - RH twist grip setting
3. - Automatic
4. -Idle
5. - Starting and warming up of engines
6. - Serviceability test of anti-icing system
7. - Engine operational test at cruising power ratings at which lift-off is excluded
8. - Operational test of FT Regulator - EEC circuit.
9. - Partial acceleration test and conjoint operation of engines in hovering
(15) During ground testing of the engines pay particular attention to the heli-
copter behavior and apply the controls to keep it stationary.
Caution: During· run up of the engines on the ground under icing condie
tions manually switch on the engine anti-icing system after gain-
ing the idling speed.
After warming up to an engine outlet oil temperature of at least
+30°C and a main gearbox inlet oil temperature of at least -15°C
run the engine at gas generator rotor speed not less than 80%.
(16) In the course of power plant ground testing the Flight Engineer should
monitor the engine instruments and report malfunctions, if any, to the
Captain; Upon the Captain's order the FlightEngineershould test theAC
generators at the main rotor speed occurring with the throttle control twist
grip turned fully to the right, and the anti-icing system.
Test AC generator NO.1 and the transformer in the following way:
(a) Check generator No. 1 output voltage by alternately setting the
voltmeter wafer selector switch to GENERATOR N1 I - II (nEPBbltll
rEHEPAT I -II), GENERATOR N1 II - III (nEPBbltll rEHEPAT II -
III). GENERATOR N1 III - I (nEPBbltll rEHEPAT III -I), and the
voltmeter should read 200 to 205V.
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