Generic faults Flashcards by Sophie Masterton

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

Maintenance examination

From a siding

While in service

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How can faults be broadly classified?

Intermittent

Persistent

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When do you contact the PDS Helpdesk?

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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What documentation is used to report faults?

TMM book

FWN book

FWN stickers

Temporary door locking device

Door not in use stickers

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What are the fault categories?

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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What are maintenance faults?

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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What is a Serious fault?

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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What is a serious priority fault?

Higher priority than a serious fault

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What is a serious return fault?

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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What is a serious end run fault?

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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What is a critical fault?

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

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What is a rectified in running fault?

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

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What is a re-marshalled fault?

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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When is the FWN book utilised?

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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What do you do with two yellow copies on FWN?

One in each end cab

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When are FWN stickers used?

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

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What happens to the green copy of FWN?

Stays with driver

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What happens if a train with a FWN is divided?

FWN has to be moved to end cab in affected unit

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When do you use Door not in use stickers?

On a door that has been isolated

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Exam starts after this

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

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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What do you do if whistle sounds continuously?

Operate lever rapidly

Close whistle isolating cock

Notify TC - TMM

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What do you do if whistle fails to sound?

Operate lever rapidly

Inspect IC and relevant CBS

Notify TC - TMM

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

Re-release doors if passengers want to get on

With defective whistle what speed must you travel at?

Cautiously at reduced speed

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

15kmh

With defective whistle what do you do when approaching LVLX?

Flash high beams/put hazards on

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

Train continues as normal Submit TMM

What happens if both headlights are defective at during daylight? Where do speed limits apply?

Train continues in service at normal speed (with marker lights) 50kmh through MURL and West Richmond tunnels

If headlights defective in hours of darkness what is procedure?

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

What speed do you do if you have skidding wheels?

5kmh

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

Personnel there - reduced speed No personnel - 15kmh

What are speed restrictions when bogies are isolated?

Any track speed over 60kmh reduce by 10kmh

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

Extreme Caution

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

Train disabled

What is the FDCL between stations procedure?

Slow down PA Stop at next station Contact TC Open and close doors

What is the procedure for FDCL at a station?

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.

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

Only one door isolated on each side of any carriage

If integrity of safety film is compromised internally what happens?

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

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

Reduced speed

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

40kmh

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

Maximum 15kmh

How can drivers communicate in emergency situations?

Cab to cab DTRS Flags, whistles, bell codes

What signals might you get to apply power?

Green hand signal All right hand signal Bells, whistles

What signals might you get to shut off power?

Red hand signal Succession of short whistles Brake application shown by rise of BC pressure or reduction of BP pressure Bells, whistles

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

Try to stop prior Lower pantos

What do you do if you see a disarranged overhead?

REC call Don’t use ETCJC

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

Pantograph test to ensure they drop within 10 seconds

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

Friction

How are Comeng pantographs raised?

Main Res air or Panto storage res, or compressor

How are Siemens and XTrap pantographs raised?

Electric motor and battery power

How are HCMT pantographs raised?

Main res air or auxiliary compressor if not enough air pressure

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

Isolate and book TMM

Summatives: pg 47 Train loads

The answer is 300.

What is speed restriction when driving with isolated bogies?

Anything over 60 reduce by 10

What is the speed restriction for running with deflated airbags?

Half track speed to a max of 30 Siemens is 80