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MT Trainee > Faults - Xtrap > Flashcards

Faults - Xtrap Flashcards

1
Q

How long is battery power?

A

60 minutes

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2
Q

Ways to conserve battery power in event of loss of overhead? (6)

A
  • reverser to neutral
  • MC to off
  • headlights off
  • (daylight) saloon lighting to emergency
  • (daylight) cab lighting off
  • Step light off by closing doors
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3
Q

Low pressure in BP fault light comes on when BP has reduced to what KPA (during rescue)

A

Below 430k

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4
Q

What does BP need to reduce to that results in train fail when in rescue?

A

300k

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5
Q

Low pressure in MRP fault light indicates MR has fallen to what KPA?

A

Below 650

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6
Q

MR pressure drops to what KPA to result in train fail?

A

580

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7
Q

3 locations for CB’s?

A

Drivers cab
Traier saloon (left of door 2)
E box on each car

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8
Q

6 CB’s left of door 2 in trailer saloon?

A

Tachy Unit
BCU
Panto 2
Panto 1
Auxiliary 2
Auxiliary 1

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9
Q

Can drivers reset CBs on e box?

A

No

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10
Q

How many times can a fault be reset?

A

3x

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11
Q

Faults that can be rectified by train stable?

A
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12
Q

If possible, when in running where should a train stable be performed?

A

Station platform, under the protection of home signals, or where level crossing protection devices will not remain active

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13
Q

How long does a train stable take?

A

2 minutes

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14
Q

How many seconds do we wait before removing controller key after 1 or panto down status light illuminates?

A

5 seconds

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15
Q

When stabled, how long will marker lights and emergency saloon lights stay illuminated?

A

15 minutes

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16
Q

4 reasons why step light may not be illuminated

A

Defective
Storage batteries flat
Batteries have been iso
Battery box fuse blown

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17
Q

On start up if panto has no risen what do we check first?

A

Voltmeter

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18
Q

After checking voltmeter and there is NO VOLTAGE, where do we go?

A

Check position of battery box iso switch.
If isolated report TMM
If not isolated declare disabled

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19
Q

Checking voltmeter and there is power but under 90v what is the train?

A

Disabled

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20
Q

How many seconds do we wait for high voltage presence light to illuminate after raising pantos?

A

30 seconds

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21
Q

If pantos won’t raise and voltmeter os above 90v, what do we check?

A

Local and trailing panto buttons not latched it.
Attempt to raise panto from other cab

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22
Q

If pantos fail to raise from another cab and buttons not latched in, what can we check?

A

Trailer car Right of door 4 - 3 way switch. Check is in automatic position

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23
Q

If panto 3 way switch is in ma ual lowering or isolated position can we still raise pantos?

A

No, report to TCA

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24
Q

What else can we check in trailer car if pantos won’t raise (and we’ve checked 3 way switch)

A

Panto 1 and 2 CB in cabinet left of door 2

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25
Q

How to isolate panto?

A

Stable
If lowered - place 3 way switch to manual lowering and isolate position
Activate cab to raise other panto

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26
Q

If panto fails to lower when isolating what do you do?

A

Manually lower and isolate with 3 way switch and crank handle

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27
Q

When coasting under a tramway square, what emergency trainswt mode should you switch to?

A

1

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28
Q

If you see “other cab operative” light, what steps must you take?

A

-Cab 2 cab
-Inspect each cab for a key/cleaners key
-if no key found ascertain which the active cab is
-if not able to be deactived then train stable

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29
Q

If unable to rectify other cab operative fault, which cab can be driven from?

A

Can only be driven from the active cab

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30
Q

Things to check if emergency brake not releasing

A
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31
Q

If unable to rectify cause for emergency brakes not releasing, how must train be run?

A

Safety loop bypass

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32
Q

When running on safety loop bypass, how will emergency brakes apply?

A

If bypass switch is let go it returns to normal position causing the emergency brakes to come on

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33
Q

What equipment is not available when safety loop is bypassed

A
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34
Q

Should the hand or foot pilot valve become to defective, what can you do?

A

Auto vigilance bypass

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35
Q

How often will auto vigilance bypass button flash?

A

30 seconds

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36
Q

During overhead loss how long will VICERS continue to run off internal battery prior to shutting down?

A

2 minutes

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37
Q

Are batteries confined to a 3 car?

A

Yes

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38
Q

How to rectify a defective battery charger fault?

A

Perform train stable

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39
Q

During SIV failure, how long can the battery charger fault light stay illuminate while the other SIV takes over charger circuits?

A

2 minutes

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40
Q

Effect on train with 1 siv failure?

A

1 HVAC operate on 3 car
1 air compressor operate on 3 car

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41
Q

Failure of both sivs effect on train?

A

All HVACs
Battery charger
Both compressors
Both traction cooling fans

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42
Q

SIV failure rectification

A

Check aux CB in trailer car
Stable

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43
Q

Where is door no.1 electric motor located in a motor car?

A

Driver cab

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44
Q

4 positions of the door motors switch

A

Release
Isolate
Normal
Lock close

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45
Q

What 3 things happen when door motor switch is put up in the release position?

A

FDCL
Door release push button will extinguish
Saloon door can be manually moved

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46
Q

What 3 things happen when motor switch is down In the lock close position?

A

Steady door close light
Door release push button extinguishes
Saloon door is locked and closed

47
Q

What 4 things will indicate a DER has been operated?

A

FDCL
DER fault light
Flashing red ANSW button
DDU emits a tone

48
Q

How to reset DER

A

Turn tri key anti clockwise against spring tension

49
Q

How to isolate defective saloon door?

A

Motor iso switch to RELEASED
Close door manually
Motor iso switch to LOCK & CLOSE
door not in use stickers

50
Q

Hiw do you isolate traction motors?

A

The TCU isolates them

51
Q

4 indications a driver may get when traction motors have been isolated

A

Traction fault light
1 or more traction equipment fault light
No green LEDs on power indicator
Possible shuddering

52
Q

Is the traction fault light train lined?

A

No, it pertains to this car

53
Q

How can a driver rectify traction issues quickly?

A

Stable

54
Q

How can a driver locate a traction equipment issue?

A

Activate each cab
Locate the traction fault light and 1 or more
Place isolate traction switch to isolate to remove train lined fault light
Book FMP

55
Q

What does thus fault mean?

A

Tacho speed sensor has failed

56
Q

Where is the tacho CB?

A

Left of door 2

57
Q

What equipment is effected when a tacho cable has failed?

A

Door release
Uncouple button
Trip reset
No speedo
BP won’t charge after my application
Vicers reset

58
Q

How do you rectify tacho cable issue

A

Stable
Tacho bypass

59
Q

Is speed input and wheel slide related?

A

No

60
Q

110v/24v DC inverter failure - what equipment should we look for?

A

Headlights (low)
Drivers seat adjustment
Marker lights
Speedo
Wiper washer
Voltmeter
MAD
Cab spotlight
CCTV
External brake indicator lights

61
Q

If using portable radio, do I need to be stationary?

A

Yes

62
Q

How to clear a DTRS fault?

A

Press X on keypad

63
Q

How to rectify DTRS faults

A

Deactivate cab
Trip and reset DTRS Cb in cab
Activate cab

64
Q

If PA is Inoperative what do we use?

A

DTRS PA

65
Q

If both PA microphones are inop what do we do?

A

Stable
Wait an additional 4 minutes and retest PA

66
Q

Major, major 2nd level and minor fault lights indicate what?

A

CB has tripped

67
Q
A

Safety loop CB has tripped

68
Q
A

Check e box

69
Q
A

-Need to reset VICERS acknowledgement button
Speed = 0
MC in coastal
EMY brake applied

70
Q
A

SIV 1 and 2 have failed

71
Q
A

Place MC to full service
Place emergency trainset mode to 1
Release brakes and immediately reapply

72
Q

What res must be drained prior to manually release SPB

A

Auxiliary res

73
Q

Can both compressors operate simultaneously if MRP drops below 650?

A

Yes

74
Q

If 1 compressor fails on a 3 car will the second compressors take over?

A

Yes

75
Q

What to do if MRP is between 580 and 750

A

Book and continue to monitor

76
Q

What to do if MR pressure below 580

A

Safety loop will open
Confirm high voltage light on
If not on-
MR leak likely, go and check

77
Q

What to do if compressors not running

A

Stable

78
Q

MR leak under centre motors

A

Try to plug, if unable to-
Isolate MR cocks
Manually release SPB
Book and drive as per bogie isolated instructions

79
Q

MR leak under any other car (not centre motors)

A

Attempt to plug, if unable to-
Train disabled

80
Q

If MR leak and disabled and leak is on leading motor of lead trailer, which direction to be rescued?

A

From advance

81
Q

3 types of trip failures

A

Lower
Raise
Reset

82
Q

If trip cock fails to lower and after attempting to raise and lower again

A

TEC call
RTA
check trip cock active cock in auxiliary pneumatic panel
If cock open then place trip cock device switch to raised and run on secondary circuit pressing auto vig button

83
Q

How many seconds will auto vig button time out?

A

40

84
Q

Whistle defect sounding continuously

A

Isolate low
Isolate high
Isolate whistle cock

85
Q
A

Locked Axel

86
Q

What are the 3 rescue features of an xtrap?

A

EMS
Brake pipe
Brake pipe sensor

87
Q

5 positions of the EMS

A

1 holding brake
2 normal
3 rescued
4 rescuing
5 rescuing in propulsion

88
Q

What EMS modes are used when non electrically rescuing?

A

3 4 5

89
Q

Brake pipe sensor opens and closes safety loop at what pressures?

A

Opens 300
Closes 430

90
Q

In a loss of 110 what switch must be turned to allow trickle charge from assisting unit?

A

Safety loop rescue switch

91
Q

What BP kpa is traction cut when in positions 4 or 5 on EMS?

A

480

92
Q

When coupled non electrically what brake is available?

A

Emergency

93
Q

How to charge brake pipe?

A

Both trains MC in full service positon

94
Q

Safety loop rescue dwitch must be placed to rescue in what cabs

A

Disabled train - all cabs
Assisting train - lead cab

95
Q

Max combined train length when xtrap pulling xtrap that has battery power Insufficient to release s loop

A

12 cars

96
Q

Max combined train length when xtrap pushing xtrap that has battery power Insufficient to release s loop

A

9 cars

97
Q

When xtrap is pushing a disabled train, what must the EMS be turned to in the disabled train?

A

Number 1 online holding brake inhibit

98
Q

When xtrap is pushing a disabled train, what must the EMS be turned to in the assisting train?

A

Number 4 rescuing

99
Q

When xtrap is pulling a disabled train, what must the EMS be turned to in the disabled train?

A

3 rescued

100
Q

When xtrap is pushing a disabled train, what must the EMS be turned to in the assisting train?

A

4 rescuing

101
Q

What is operated by 400V (BATH)

A

Battery charger
Air compressors
Traction cooling fans
HVAC

102
Q

When stabling what do we tell passengers?

A

2 minutes where saloon lights will be reduced and doors will lock

103
Q

How to rectify service brake fault

A

DURING TRAIN PREP
MC to full service
EMS to no.1
Release brake and immediately apply

104
Q

Service brake fault light, how to tell if axle is locked on a traction motor?

A

Traction fault light as well

105
Q

If compressors are failing to operate what can we do?

A

Stable

106
Q

If we have 1 or more brake applied while in motion, how to we rectify?

A

Likely sticking brakes
Isolate bogie

107
Q

If we need to drive from another cab due to another cab active fault light, what do we need?

A

Competent employee

108
Q

Reasons to isolate vicers

A

Fault indicator illuminates
Safety loop bypassed
Auto vigilance bypassed
Abnormal operation

109
Q

Where is the panto motor switch located?

A

Right of door 2

110
Q

When a train is stables how long will marker kughts and emergency saloon be illuminated?

A

15 minutes

111
Q

Where are door electric motor switches located?

A

Left of every saloon door

112
Q

Can safety loop bypass be operated if MR pressure below 580?

A

No, must be sandwiched due to no emy brakes

113
Q

When does the ALL BRAKE APPLIED fault light turn on?

A

When EMS is in position no.1

MT Trainee (50 decks)

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