More Components

Question 1

Rotor positioning control panel LOCATION

Answer 1

Mounted on cockpit right overhead console

Question 2

Rotor positioning control panel FUNCTION

Answer 2

Used to position the MRH to engine start only
Momentary contacts for : Positioning valve and safety valve

Question 3

Safety Valve LOCATION

Answer 3

Aft hydraulics compartment, fwd of the rotor break manifold

Question 4

Safety valve FUNCTION

Answer 4

Isolates positioning system from the utility system for flight
Opens on an electrical signal from: master power switch, rotor positioner switch(on rotor positioning ctrl panel)

Question 5

Positioning valve LOCATION

Answer 5

Lower aft, left side of MGB mounted on a bracket(top valve)

Question 6

Positioning valve FUNCTION

Answer 6

Directs pressure to: Reverse valve and positioning actuator

Question 7

Where does the positioning valve receive electrical signals from

Answer 7

Rotor positioner switch
Blade fold position switch
Pylon fold switch

Question 8

Reversing Valve LOCATION

Answer 8

Lower aft, left side of MGB mounted on a bracket under the positioning valve

Question 9

Reversing Valve FUNCTION

Answer 9

Provides directional control of the hydraulic positioning motor
When energized: main rotor rotation is counter clockwise(normal)

Question 10

Where does the electrical signal come from for the reversing valve

Answer 10

180 degree segment of the #13 slip ring to energize or de-energize the reversing valve

Question 11

PBR

Answer 11

Positioning Valve
Bracket
Reversing Valve

Question 12

Positioning Assembly LOCATION

Answer 12

Lower aft left side of the MGB

Question 13

Positioning assembly FUNCTION

Answer 13

Engages Rotor Brake disc teeth
Turns the rotor head

Question 14

Slip Ring Assembly LOCATION

Answer 14

Mounted to the base of the MGB shaft in the cabin overhead

Question 15

Slip Ring assembly FUNCTION

Answer 15

Transitions (converts) stationary wiring to rotating wiring