Door Defects & Lighting Defects

Question 1

What does the Door Loop Isolation do?

Answer 1

Allows train to get traction power while it has FDCL

Question 2

If a door is defective what will it do?

Answer 2

Tone will sound for 60 seconds

Question 3

What can cause FDCL? (8)

Answer 3

Control CB tripped

Aux. CB tripped

BVICS open in last car

Marker lights in last car in wrong position

Saloon doors failing to close

PLC CB in any trailing car isolated

Open circuit in train cable

Coupler sensor defective

Question 4

If only one door defective what is likely cause?

Answer 4

Mechanical

Close, temp locking device, sticker, TMM

Question 5

When doors on one side of a car are defective what is the likely cause?

Answer 5

Electrical or pneumatic

Check electrics in cabinet above door 3
Check ICs under train

Question 6

When all doors on a car are defective what is the likely cause?

Answer 6

Electrical or pneumatic

Same as previous

Question 7

When all doors on the train are defective what is the likely cause?

Answer 7

Electrical

Check Aux. CB

Question 8

What else does Aux. CB control?

Answer 8

Bells
Aux. start
Doors open & close

Saloon lights
Couple and Uncouple Button
AC no. 1 end
Self- centering device on coupler

Question 9

How do you apply temporary door locking device to a Comeng?

Answer 9

Open pelmet above defective door

Serated side on inside

Cable around door mechanism

Pull tight

Attempt to force door

Close pelmet

Door stickers

TMM

Question 10

What is procedure for FDCL while moving?

Answer 10

Slow down

PA

TC

Stop at next station regardless

Attempt to close doors

Question 11

What is procedure for FDCL while at platform?

Answer 11

TC, PA, full cab unattended

TMM, radio, stickers

Close doors and walk first unit listening … repeat for second unit.

Isolate defective door

Question 12

How is saloon lighting powered?

Answer 12

By MAs

Question 13

If you detect defective saloon lights what is the first thing you should check?

Answer 13

MA fault light

Question 14

If the whole train has saloon lights out what do you do?

Answer 14

Observe at least one Panto up

Check 110VDC supply

Trip and reset Aux. CB

Press saloon light ON button x 3 then press for 5 seconds

If that doesn’t work go to another cab and press x 3 and hold for 5 seconds

Question 15

If half saloon lights are inoperative in one car what is likely cause?

What do you do?

Answer 15

Contactors not set and not activating circuits

Press Saloon light ON button x 3 then press and hold for 5 seconds

If that doesn’t work check saloon lighting MCB above door 3

Question 16

If lighting is extinguished in a regular sequence what does that mean?

Answer 16

Lighting CB has tripped - above door 3

Or isolation switch is in off position - above door 3

Question 17

When individual lights are extinguished in no discernible pattern what does it mean?

Answer 17

Inoperative tubes

Book TMM

Question 18

What happens if all lights are defective in one or more cars and emergency lights are inoperative?

Answer 18

Train cannot operate:
In hours of darkness
In the MURL
In West Richmond Tunnel

Question 19

How long will emergency lighting operate?

How do you reset it?

Answer 19

2 hours

Move marker lights to any position and back to Auto

Question 20

If there is half saloon lighting in one UNIT what would be the cause?

Answer 20

One MA inoperative