Systems 2 - Power train/Rotor system Flashcards
What does the 2 assesory modules drive?
- Generator #1 and #2
- Hydraulic pump #1 and #2
In what part of the Transimission is the freewheeling unit located?
Imput module
The 5 parts of the transmission:
- Main module
- Left and Right Input Module
- Left and right Accessory Module
How many Chip detectors are there in the 5 pac (transmission)?
5
Is the main transmission oil system an open og closed system?
Closed system
Why is the oil pressure sensor located in the left hand accessory module when the pumps are located in the bottom of the main transmission?
Because it is the furthest part from the pump, and will be the first place the pressure will get low
The ________ accessory module has a low oil pressure switch and chip detector.
Left
The main transmission is made up of ____ modules.
Five
Each accessory module has a mounting flange for the installation and drive of the:
Main ac generator and Main hydraulic pump.
Without oil the transmission and gearbox can run up to _____ minutes.
30
The chip detector fuzz burn deactivates when the oil level reaches _____ degrees
140
Oil pressure should remain steady in the __ to __ range to ensure that when fluctuations occur, they remain in the acceptable range.
45 to 60 psi
The Oil Filter has ___ stages.
Two
What caution appears if a chip detector fails the PBIT during power up?
CHIP IBIT FAIL
Why does section 2 and 3 of the tail rotor driveshaft consist of multible driveshafts?
To increase flexibility
When inspecting the flexible couplings, check for _______, _____, and _____.
separation, cracks, and security
The intermediate and tail gear boxes may run at cruise flight for ___ minutes with loss of all oil.
30
When gear box oil temperature reaches 140°C, a switch closes and causes the _____ _____ capacitor to discharge.
fuzz burn
How many Chip Detectors are there total in the Transmission system and where are they located?
- 7 total
- 5 in the 5 Pac
- 1 in the intermediate gearbox
- 1 in the tail rotor
One advantage of the wide chord blades is ______
better maneuverability
The elastomeric bearings within the spindle assembly allow the main rotor blade to ________, ______, ______ and ______.
feather, flap, lead, lag
The purpose of the dampers is ______
to limit the lead and lag of the blade
The three control inputs connecting the primary servos to the main rotor swashplate are the ______, _____, and ______ control rods.
Forward, Aft, and Lateral
The rotor brake system is designed to hold the main and tail rotor system during engine starting, with both engines at IDLE and to stop the rotors in approximately ___-___ seconds with 150-180 psi applied at 40% NR during engine shutdown.
12-18
Operating an engine against the gust lock is ___________ on rotor brake equipped helicopters.
prohibited
The rotor brake ground idle quadrant lock, when set, prevents the ______ from being moved past the IDLE position.
power control levers
