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DLR > TRAIN FAULTS > Flashcards

TRAIN FAULTS Flashcards

1
Q

What is a minor fault?

A

A fault that does not interfere with the safety and efficiency of the vehicle operation

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2
Q

Define a MAJOR FAULT

A

A fault that interferes with the safety and efficiency of the vehicle’s operation

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3
Q
  1. Does a minor fault require immediate rectification?
  2. What actions usually take place after a minor fault occurs?
A
  1. No
  2. Contact CRT by text or call using company mobile.

Give CRT:
- PACK NUMBER
- RUN NUMBER
- VEHICLE NUMBER
- NATURE OF FAULT

CRT may give you instructions to fix the fault

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4
Q

What happens when a MAJOR FAULT occurs?

A
  1. It may require the operation of bypass switches and isolations
  2. Requires attendance of FLRT
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5
Q

List 5 examples of Minor Fault

A
  • LAMP AT DCP/EDP NOT WORKING
  • NO RTD CHIME
  • AVIS NOT WORKING
  • CUPBOARD DOOR NOT LOCKING
  • ONE INTERNAL LIGHT NOT LIT
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6
Q

List 5 examples of MAJOR FAULT

A
  • GENERAL FAULT LAMP LIT
  • NO ADC
  • ABNORMAL SMELL OR NOISE
  • NO TRACTION/MOVEMENT
  • INHBIT NOT RELEASING
  • SLOW RUNNING
  • DOORS NOT ENABLING
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7
Q

Where can you find GENERAL FAULT LAMPS?

A
  1. At the EDP
  2. Exterior of vehicle by articulated area (lights are amber)
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8
Q

If GENERAL FAULT LAMPS are illuminated, what should you do??

A
  1. Check fault finding equipment
  2. Contact controller with information
  3. Act on Controller’s instructions
  4. Update notebook
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9
Q
  1. Where would you find the Remote Display Unit?
  2. What’s the function of the RDU?
A

1.On a B92 vehicle, at the B end lead EDP.
2. It communicates with the CRT and provides information of each vehicle, including location and fault

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10
Q

What are the 2 menus on the RDU?

A

Inhibit and Fault menus

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11
Q

Up to how many faults can be stored on the Fault Menu on the RDP?

A

Up to 50

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12
Q

Where can you find the Fault Annunciation Panel?

A

On a B92, B end AUX panel

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13
Q

Where will you find the most recent fault on a HMI?

A

At the bottom

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14
Q

Would you be able to read faults on a FAP, if not in a driving mode?

A

No

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15
Q

How would you know if a fault is present when looking at the FAP?

A

The red lamp next to the text stating the fault will illuminate

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16
Q
  1. Why would the controller ask you to acknowledge a fault on the FAP? And How would you acknowledge it?
  2. Does acknowledging the fault clears the fault?
A
  1. To stop the alarm to continue ring in the Control with regards to that fault. By pressing the button.
  2. No, it doesn’t
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17
Q

If the HMI has a blank screen, how can you check if it’s working?

A

By pressing F1

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18
Q

Where would you find the HMI?

A

Under the Aux Panel in the B end

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19
Q

Where would you find the BLBS?

A

In the AUX panel at the B end of a B92/B2007 vehicle

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20
Q

What is the purpose of the BLBS?

A

It removes a certain level of protection and it allows the train to drive with an inhibit on.

21
Q

In what scenario, would you be asked to operate a BLBS?

A

During a vehicle failure

22
Q

How do you operate the BLBS?

A
  1. Lift clasp and break seal
  2. Turn switch (if more than 90 degrees, report as faulty)
  3. Confirm successful isolation by checking FAP on B92 or HMI on B2007
23
Q

Where would you find the ECU Switch?

A

On the B92 in the A END ARTICULATED AREA

24
Q

What key would you use to open an ECU cupboard?

A

13 Key

25
Q
  1. How do you operate the ECU switch to isolate?
  2. What does this isolation do?
A
  1. Open the ECU cupboard
    Turn the ECU switch to Isolate
  2. It removes traction and braking commands to that vehicle
26
Q
  1. Can you isolate more than 1 ECU?
  2. If Control asks you to isolate another ECU, what should you do to the first one you’ve isolated?
A
  1. No
  2. Reinstate the original isolated ECU, before isolating another ECU in another vehicle
27
Q

How do you carry out an ECU SWITCH RESET?

A

In the ECU Cupboard, locate the key with a string for reset and hold clockwise for 2 seconds.

If there’s a button instead, press button for 2 seconds

28
Q

Why would you need to do a VTCU reset?

A

Due to traction or lighting issue

29
Q

Where is a VTCU usually done and why?

A

At a terminal station, to minimise disruption to the service

30
Q

NARRATE THE VTCU PROCESS

A
  1. Make an announcement and carry out door procedure
  2. Once ADC is gained, apply inhibit at the DCP
  3. Carry out VTCU reset (emergency saloon lights then back to normal)
  4. Once VTCU reset is complete, return to DCP
  5. Clear inhibit and complete door procedure
31
Q

Where can you find the front door or end door bypass switch?

A

At the B and A end of every vehicle

32
Q

In what scenario is the Front or End Door Bypass switch isolated?

A

During a train rescue, so that the end door can be open to enable communication between the two PSAs

33
Q

Where can you find the MCBs in a B92?

A
  1. A end Aux Panel
  2. B end Aux Panel
  3. Next to the RMS in the B end articulated area under the seat
  4. Next to the OTMR in the A end articulated area under the seat
  5. Above the ECU
34
Q

Where you can find the MCBs in a B2007?

A

In the A and B end, articulated sections in the top leaf cupboard

35
Q

How would you visually know if a MCB has been tripped in a:

  1. B92
  2. B2007
A
  1. When tripped it will show green section and it will be lowered
  2. When tripped it will show green section and identified by arrow pointing at mcb
36
Q

How can you identify what MCB has been tripped on

  1. B92
  2. B2007
A
  1. Use map on the removable side of the panel
  2. On the HMI
37
Q

Where would you find the Master VOBC?

A

In the VOBC Cupboard, B end in the articulated area

38
Q
  1. What key would you use to open the VOBC cupboard?
  2. Why would you need reset the VOBC master switch?
A
  1. H KEY
  2. If the ZVD lamp is not illuminated, usually when energising a vehicle
39
Q
  1. On what unit would you find a PERV?
  2. What happens if it’s been activated but the doors are still close?
  3. What key do you use to reset it?
A
  1. B92
  2. You will still have ADC
  3. Carriage key
40
Q
  1. On what unit would you find a PERH?
  2. What happens the PERH is activated?
  3. What key do you use to reset it?
A
  1. B2007
  2. Emergency brakes will apply and ADC will be lost.
  3. Carriage key
41
Q

Scenario

A PERH has been activated and you are waiting for a FLRT to replace the screen. It is compulsory lead system wide. What should you do?

A

You will contact control whether they would prefer you to go back to your Lead EDP or remain at the set of doors until FLRT attends.

Based on the decision that they make, you would log it in your notebook.

42
Q
  1. What control the Audio and Visual Information System (AVIS)?
  2. Where you can find this control?
  3. How do you reset it?
A
  1. Unit control keypad (UCK)
  2. In small cabinet atop PSA cabinet in articulated area
  3. Pressing MMCV on the keypad
43
Q

If the AVIS and RTD CHIME are not working, where should you check first?

A

PA HANDSET to see if it has been properly placed

44
Q

LIST ALL THE DEPOT INHIBITS YOU CAN REMEMBER

(‘Minimum 7)

A
  1. CAD OPEN
  2. CREW ACCESS HANDLE MISALIGNED
  3. EMERGENCY STOP MUSHROOM PRESSED
  4. END DOOR OPEN
  5. EQUIPMENT FAULT
  6. MCB TRIPPED
  7. NO AIR PRESSURE
  8. NO DRIVING MODE SELECTED
  9. VEHICLE NOT COUPLED/UNCOUPLED
  10. ZVD LAMP NOT ILLUMINATED
45
Q

LIST ALL INHIBIT YOU COULD ENCOUNTER ON THE MAINLINE

(Minimum 10)

A
  1. DOCKING ISSUE
  2. NCT TRAIN
  3. PETS/TETS ACTIVATION
  4. AXLE COUNTER BLOCK FAILURE
  5. LOSS OF ADC
  6. END DOOR OPEN
  7. CAZ INFRINGEMENT
  8. TRIPPED MCB
  9. EQUIPMENT FAILURE
  10. COUPLER ISSUES
  11. VOBC SWITCHOVER
  12. TRACTION FAULT
  13. BRAKE FAULT
  14. AIR PRESSURE LOST
  15. OVERSPEED
  16. CONTROLLER ACTIVATED
  17. DCP TRIANGLE MISALIGNED
  18. CAD MICROSWITCH
46
Q

How long should you wait on mainline when trying to clear an inhibit and it has yet to clear?

A

60 seconds

47
Q

How long should you wait on mainline when trying to clear an inhibit and it has yet to clear?

A

60 seconds

48
Q

What will happen if you experience loss of AUX POWER?

A
  1. Train will run on batteries
  2. Traction and heating circuits will not be available
  3. Saloon lighting to be reduced to emergency lighting over doors and articulated area
  4. If train is in motion it will coast until
    It comes a gradual stop
49
Q

Name 5 actions that you could carry out if you had no traction or movement

A
  1. CHANGE OF DRIVING MODE
  2. ECU ISOLATION – B92
  3. VTCU RESET – B2007
  4. BLBS OPERATION
  5. FLRT ATTENDANCE
  6. DETRAINMENT
  7. TRAIN RESCUE
  8. REMOVAL OF TRAIN FROM SERVICE

DLR (26 decks)

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