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Comeng Faults > Generic faults > Flashcards

Generic faults Flashcards

1
Q

What are the 3 locational areas faults can be defined by?

A

Maintenance examination

From a siding

While in service

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2
Q

How can faults be broadly classified?

A

Intermittent

Persistent

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3
Q

When do you contact the PDS Helpdesk?

A

Assistance with fault finding

Signal reverts to stop causing PAE

Train fault impacts train running

Error made by driver impacting train running

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4
Q

What documentation is used to report faults?

A

TMM book

FWN book

FWN stickers

Temporary door locking device

Door not in use stickers

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5
Q

What are the fault categories?

A

Maintenance faults

Serious faults
- serious
- serious priority
- serious return
- serious end run

Critical fault

Rectified in running fault

Re-marshalled fault

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6
Q

What are maintenance faults?

A

Minor faults that do not impact on safe operation of train

Does not prevent train from entering or remaining in service

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7
Q

What is a Serious fault?

A

Train May enter or remain in service but will be removed as soon as reasonably practicable- by last service of the day

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8
Q

What is a serious priority fault?

A

Higher priority than a serious fault

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9
Q

What is a serious return fault?

A

When leading cab arrives at current destination, train will not be driven from that cab in revenue service until fault is rectified

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10
Q

What is a serious end run fault?

A

May be driven in revenue service from non- defective cab as far as Metro network allows. Defective cab must not be driven in revenue after that

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11
Q

What is a critical fault?

A

Failure of safety systems/equipment. Passengers must be detrained and train shunted to maintenance location

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12
Q

What is a rectified in running fault?

A

A fault that either rectified by intervention of the driver or a train system

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13
Q

What is a re-marshalled fault?

A

A fault in a leading or trailing motor and the cab is re-marshalled into a centre motor to allow the train to continue.

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14
Q

When is the FWN book utilised?

A

Faults related to:

Bogies isolated

Air bag deflated

Lateral sway fault

Red EC/Yellow TECHAV isolated on a Lead / trail motor

Doors isolated

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15
Q

What do you do with two yellow copies on FWN?

A

One in each end cab

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16
Q

When are FWN stickers used?

A

If fault means speed restrictions apply the stickers go in each end cab

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17
Q

What happens to the green copy of FWN?

A

Stays with driver

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18
Q

What happens if a train with a FWN is divided?

A

FWN has to be moved to end cab in affected unit

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19
Q

When do you use Door not in use stickers?

A

On a door that has been isolated

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20
Q

Exam starts after this

Which defects mean the train is driven in a degraded mode that can compromise safety systems?

A

Whistle faults

Bogies isolated

Skidding/locked wheels

Headlight faults

Window and door defects (saloon)

Emergency conditions and assisting disabled trains

Pantograph defects

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21
Q

What do you do if whistle sounds continuously?

A

Operate lever rapidly

Close whistle isolating cock

Notify TC - TMM

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22
Q

What do you do if whistle fails to sound?

A

Operate lever rapidly

Inspect IC and relevant CBS

Notify TC - TMM

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23
Q

What are you allowed to do if you have Whistle Failure in service?

A

Re-release doors if passengers want to get on

24
Q

With defective whistle what speed must you travel at?

A

Cautiously at reduced speed

25
Q

With defective whistle what speed must you do through yards, stations, near people on or near line?

A

15kmh

26
Q

With defective whistle what do you do when approaching LVLX?

A

Flash high beams/put hazards on

27
Q

What do you do if tone of whistle is too low?

A

Train continues as normal

Submit TMM

28
Q

What happens if both headlights are defective at during daylight?

Where do speed limits apply?

A

Train continues in service at normal speed (with marker lights)

50kmh through MURL and West Richmond tunnels

29
Q

If headlights defective in hours of darkness what is procedure?

A

Advise TC

Don’t exceed 50kmh - between stations, crossing loops

Don’t exceed 15kmh over LVLX, stations, yards

Ensure white markers operative

Frequent use of whistle

30
Q

What speed do you do if you have skidding wheels?

A

5kmh

31
Q

After train has been moved with locked wheels what are speed restrictions - with and without infrastructure personnel?

A

Personnel there - reduced speed

No personnel - 15kmh

32
Q

What are speed restrictions when bogies are isolated?

A

Any track speed over 60kmh reduce by 10kmh

33
Q

What speed do you do if you only have 50% to 80% of braking available?

A

Extreme Caution

34
Q

What do you do if you have less than 50% of braking available?

A

Train disabled

35
Q

What is the FDCL between stations procedure?

A

Slow down

PA

Stop at next station

Contact TC

Open and close doors

36
Q

What is the procedure for FDCL at a station?

A

Contact TC using TEC

PA

Release doors

Cab unattended - radio, stickers, TMM

Release and close doors, quickly walk along train. Same at centre cab

If fault found, close and isolate

If fault not found, door loop bypass and detrain pass.

37
Q

If a door fault is rectified a train can continue in service as long as?

A

Only one door isolated on each side of any carriage

38
Q

If integrity of safety film is compromised internally what happens?

A

Train taken out of service (critical fault) if CE not available

39
Q

Under emergency conditions what speed can you do when train is powered and braked from leading cab?

A

Reduced speed

40
Q

Under emergency conditions what speed can you do when train is braked from leading cab, powered from intermediate location?

A

40kmh

41
Q

Under emergency conditions what speed can you do when train is braked from an intermediate cab?

A

Maximum 15kmh

42
Q

How can drivers communicate in emergency situations?

A

Cab to cab
DTRS
Flags, whistles, bell codes

43
Q

What signals might you get to apply power?

A

Green hand signal

All right hand signal

Bells, whistles

44
Q

What signals might you get to shut off power?

A

Red hand signal

Succession of short whistles

Brake application shown by rise of BC pressure or reduction of BP pressure

Bells, whistles

45
Q

At a terminal stop board what must you do if you might not stop before overhead runs out?

A

Try to stop prior

Lower pantos

46
Q

What do you do if you see a disarranged overhead?

A

REC call

Don’t use ETCJC

47
Q

What do you have to do prior to coasting under an obstruction in overhead?

A

Pantograph test to ensure they drop within 10 seconds

48
Q

What kind of brakes will you have if pantographs have to be dropped?

A

Friction

49
Q

How are Comeng pantographs raised?

A

Main Res air or Panto storage res, or compressor

50
Q

How are Siemens and XTrap pantographs raised?

A

Electric motor and battery power

51
Q

How are HCMT pantographs raised?

A

Main res air or auxiliary compressor if not enough air pressure

52
Q

What do you do if a pantograph is damaged at train prep/change of ends?

A

Isolate and book TMM

53
Q

Summatives: pg 47
Train loads

A

The answer is 300.

54
Q

What is speed restriction when driving with isolated bogies?

A

Anything over 60 reduce by 10

55
Q

What is the speed restriction for running with deflated airbags?

A

Half track speed to a max of 30

Siemens is 80

Comeng Faults (11 decks)

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