Systems 2 - Power train/Rotor system

Question 1

What does the 2 assesory modules drive?

Answer 1

• Generator #1 and #2
• Hydraulic pump #1 and #2

Question 2

In what part of the Transimission is the freewheeling unit located?

Answer 2

Imput module

Question 3

The 5 parts of the transmission:

Answer 3

• Main module
• Left and Right Input Module
• Left and right Accessory Module

Question 4

How many Chip detectors are there in the 5 pac (transmission)?

Answer 4

5

Question 5

Is the main transmission oil system an open og closed system?

Answer 5

Closed system

Question 6

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?

Answer 6

Because it is the furthest part from the pump, and will be the first place the pressure will get low

Question 7

The ________ accessory module has a low oil pressure switch and chip detector.

Answer 7

Left

Question 8

The main transmission is made up of ____ modules.

Answer 8

Five

Question 9

Each accessory module has a mounting flange for the installation and drive of the:

Answer 9

Main ac generator and Main hydraulic pump.

Question 10

Without oil the transmission and gearbox can run up to _____ minutes.

Answer 10

30

Question 11

The chip detector fuzz burn deactivates when the oil level reaches _____ degrees

Answer 11

140

Question 12

Oil pressure should remain steady in the __ to __ range to ensure that when fluctuations occur, they remain in the acceptable range.

Answer 12

45 to 60 psi

Question 13

The Oil Filter has ___ stages.

Answer 13

Two

Question 14

What caution appears if a chip detector fails the PBIT during power up?

Answer 14

CHIP IBIT FAIL

Question 15

Why does section 2 and 3 of the tail rotor driveshaft consist of multible driveshafts?

Answer 15

To increase flexibility

Question 16

When inspecting the flexible couplings, check for _______, _____, and _____.

Answer 16

separation, cracks, and security

Question 17

The intermediate and tail gear boxes may run at cruise flight for ___ minutes with loss of all oil.

Answer 17

30

Question 18

When gear box oil temperature reaches 140°C, a switch closes and causes the _____ _____ capacitor to discharge.

Answer 18

fuzz burn

Question 19

How many Chip Detectors are there total in the Transmission system and where are they located?

Answer 19

- 7 total

• 5 in the 5 Pac
• 1 in the intermediate gearbox
• 1 in the tail rotor

Question 20

One advantage of the wide chord blades is ______

Answer 20

better maneuverability

Question 21

The elastomeric bearings within the spindle assembly allow the main rotor blade to ________, ______, ______ and ______.

Answer 21

feather, flap, lead, lag

Question 22

The purpose of the dampers is ______

Answer 22

to limit the lead and lag of the blade

Question 23

The three control inputs connecting the primary servos to the main rotor swashplate are the ______, _____, and ______ control rods.

Answer 23

Forward, Aft, and Lateral

Question 24

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.

Answer 24

12-18

Question 25

Operating an engine against the gust lock is ___________ on rotor brake equipped helicopters.

Answer 25

prohibited

Question 26

The rotor brake ground idle quadrant lock, when set, prevents the ______ from being moved past the IDLE position.

Answer 26

power control levers