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general Flashcards

1
Q

persistent faults

A

have symptoms that are always present, eg ruptured break pipe

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2
Q

intermittent fault

A

could be something like air con dripping out on a hot day

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3
Q

what things can the PD help desk advise

A

assistance in fault finding
signal reverting causing PAE
fault that will impact running
or error by a driver that will impact running

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4
Q

what info do you need from TC to finish an TMM

A

fault category
fault reference number
pink in the cab, green for the driver

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5
Q

how long does a maintenance fault get?

A

90 days
maintenance does not impact safe operating of the train will not prevent it from service.
eg minor blow of air
ED inoperative
externally cracked window

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6
Q

when may a serious fault re-enter service

A

as soon as reasonably practicable.
serious priority
serious return
serious end run

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7
Q

critical fault is a failure of safety systems/equipment

A

passengers must be detained and train shunted

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8
Q

rectified in running

A

fixed by intervention if a driver or train system

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9
Q

remarshalled fault

A

when a centre cab becomes a trailing cab

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10
Q

where do you put the fault warning notices

A

two yellow one for each end cab and keep the green one. they must be moved if the train is remarshalled

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11
Q

how do you try to fix a whistle?

A

hit the whistle a few times

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12
Q

if the whistle won’t sound how do you drive differently

A

re-open doors if people are late
15km max through yards, stations or near employees or people walking near the line
flash head lights when crossing lvl crossings
if you think people near the line aren’t aware of you slow down or stop
drive to conditions, curves, visibility,

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13
Q

are there restrictions if only one headlight is defective?

A

no

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14
Q

if both head lights are defective in day light what are the restrictions?

A

50km max through MURL and west richmond tunnels

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15
Q

if both headlights are out in darkness

A

50km hour max between stations and crossing loops
15km max over level crossings or through stations, yards
display white marker lights
frequent whistle
this is a critical fault

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16
Q

if there are skidding wheels over a section and the infrastructure personnel are not available what will TC do

A

get flaggies out to instruct drivers to go 15kmh until the track is fixed

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17
Q

if the front axle is jammed can you drive the train

A

not from the lead you have to set back or be rescued

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18
Q

80-99% (2 isolated) bogies operable

A

reduce speed by 10km/h until 60km/h

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19
Q

50-80% (6-9) bogies isolated

A

travel at extreme caution no passengers

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20
Q

if there are less than 50% so 5 or less bogies isolated

A

you are disabled you can’t drive

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21
Q

what must you do in addition to a TMM for an isolated bogie

A

FWN a yellow copy for each end and keep the green copy and put stickers above to speedo to indicate speed restrictions

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22
Q

how many bogies can you isolate on HCMTs to remain in service

A

3

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23
Q

the bogie isolating cock is self venting. that means that when isolated the breaks will release on that bogies

A

it may be necessary to isolate the SPB it may be necessary to isolate the SPB and release it as well if the break block does not clear the wheel

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24
Q

FDCL between stations

A

make a PA to clear doorways
ask passengers to make a PEI if they see an obstruction
view mirrors
reduce speed
TEC to TC
stop at next station regardless of timetable

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25
Q

if you come to a stop while the the door light is flashing when will you get traction

A

once it’s stead or bypassed

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26
Q

once the door loop is bypassed can you turn it back?

A

no?

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27
Q

how many doors can you isolate to remain in service

A

one per side per car

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28
Q

can a train go into service if a can door cannot be secured

A

no

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29
Q

if the safety film is in tact inside and the window is cracked can you dock up?

A

yep

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30
Q

if the safety film is compromised can you be in service?

A

only if protected by a competent employee

31
Q

how can you check if the window has a film

A

use your fingernail to check 5mm from the edge of the window

32
Q

what must you take when protecting a train and how far do you go?

A

radio
keys
DRA
red flag/ torch

33
Q

drivers are not to fit transition couplers

A

true

34
Q

powering and braking from behind

A

15km/h

35
Q

powering and braking from the front

A

reduced speed cautiously

36
Q

powering from the back and braking in the front

A

40

37
Q

if comms fail
how can you get a proceed

A

green flag
all right hand signal
bells
whistle code

38
Q

the trip of the leading can must be lowered unless defective

A

unless you are driving from the rear then you can drive on the secondary with it raised because the stop arm will be raised by the time you get to it

39
Q

1500v dc panto faults

A

damaged carbon strips
damaged panto heads
damaged panto arms
main res air leaks
electrical defects
end of overhead
dissaranged wires

40
Q

how do you isolate pantos electrically

A

with the toggle switch

41
Q

if there are burn marks or metal on metal on the panto

A

it must be lowered isolated and booked

42
Q

can you use a crank handle to lower a panto?

A

yes but not raise it

43
Q

ROBBDS TEST procedure INITIAL CHECKS

A

trip- set and lowered
switches- normal position
CBs normal, door close button steady blue
gauges- main res, brake pipe, control res
cocks- BIVICS red EC

44
Q

ROBBDS TEST procedure after initial checks 110v dc supply

A

check supply light
doors open close
LP flag is lowered ep works
bell operates

45
Q

ROBBDS TEST

A

Reverser
traction overload
brake pipe reduction
control governor bypass
door loop bypass
second master controller

46
Q

what lights will you get for rheo faults

A

rheo brake light
local

47
Q

what lights will you get for traction faults

A

local
line switch

48
Q

what does the control res do and where does it operate

A

490
keeps the trip in position
operates equipment in the main equipment and line breaker case

49
Q

what does it mean if the line switch light is on?

A

air can’t get to the line breaker case and close the circuits so there is no traction for that car only

50
Q

you can try and fix traction and rheo faults by using the

A

traction overload button, if it doesn’t work switch the motors out and book it, that car won’t have motors

51
Q

what else will fleet maintainers do if they tune the main switch

A

put an equipment sticker on the bulkhead
(auxiliary isolate is for MA and air compressors)

52
Q

loss of over head with comms

A

the substation will try and reset twice; TC will stop all trains and ask to lower pantos, substation will try and reset, if successful TC will contact each 1 by 1 to raise one panto and one MA at a time and determine which train and which panto has the problem. once isolated each train will be set off one minute apart to avoid drawing too much power at once. drive in series until advised by TC.

53
Q

loss of overhead no comms

A

don’t assume it’s loss of overhead, take initiative. check trips switches gauges and cocks. check DC supply. check AC supply, headlights saloon lights) try to reset MA on the underframe, repeat in leading centre. if still no compressors assume it’s loss of overhead TOTS

54
Q

if you lose overhead and there’s no comms and then it comes back

A

you can drive off if your an up train after 30 seconds
and if your a down 60 seconds
drive in series

55
Q

how long do you have on the battery in a comeng

A

2 hours

56
Q

when will the LSM activate?

A

after 2 continuous seconds with less than 95vdc from overhead

57
Q

what are the components of the LSM

A

the time delay relay which activates 4 mins after the BIVICS closes
the speed threshold of 8kms

58
Q

what happens above the speed threshold when loss of overhead

A

the pantos will stay up
EP trips- LP flag up, air brake (lead)
MAC stays on in the lead, off in the trailing motors
MA’s shuts off

59
Q

what happens when loss of overhead under the threshold

A

lead panto stays up
trailing pantos will lower
MAC stays on in the lead, off in trailing
MA’s turn off
EP will trip, LP flag, air brake

60
Q

the VICERS application valve will activate after 5 minute of loss of overhead

A

leave brake handle in emergency so it doesn’t waste main res air on trying to charge the VICERS

61
Q

what will be the effect of a weak substation output

A

reduced reactive effor
reduced rheo performance
loss of one or more MAs
loss of one or more air cons

62
Q

what jolene once a weak substation has been identified

A

TC will ask one train at a time in that area to raise all the pantos and start only lead MA. drive in series until next substation area

63
Q

when does the wheel slip light illuminate

A

when there is more than 15km/h difference between axles

64
Q

where are the frequency generators and wheel slide cables?

A

1357

65
Q

what is protected by the control circuit breaker

A

control circuit reverser
master controller
control governor
rheo brake
panto raise and lower
traction overload reset

66
Q

auxiliary control circuit breaker protects

A

Bell
auxiliary start
doors release and close
saloon lights on and off
couple and uncouple
air con #1 control
local rheo brake
schafenberg coupler self centre

67
Q

CONTROL CB
train line panto raise

A

manually raise panto individually by EP button, local panto raise button

68
Q

CONTROL CB
train line panto lower

A

isolate panto electrically, (toggle switch) individually. once the fault is found lower and isolate that panto locally

69
Q

CONTROL CB
traction overload reset button

A

locate this car light, isolate motors all out

70
Q

CONTROL CB
master controller closed, reverser off brake in release no panto buttons or traction overload reset pressed

A

there’s a short circuit in the wire between the control cb and master controller. can’t drive from there

71
Q

CONTROL CB
master controller is closed, reverser is off brake is APPLIED

A

1 defective rheo- isolate local rheo via toggle
2 short circuit in rheo demand(train lined cable) - isolate trainline cable by tripping EP CB
3 short circuit between CB and master controller- drive from another cab

72
Q

CONTROL CB
master controller is open

A

try lower notches
if trips in 4, try 123
if in 3. 12
if in 2. 1

73
Q

CONTROL CB
master controller is open notch 1 shunt trips

A

defective traction control equipment (traction motor) or control circuit cable is defective
1 isolate lead car motors
2 isolate leading centr car motors
3 divide the 6 cars and recouple non-electrically
4 if lead CB stays on issue is another unit drive from lead unit trip EP CB door loop bypass de train
5 if lead CB trips can’t drive from there, trip EP and door loop and de train

FAULTS (8 decks)

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