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Comeng Traction > Cab Equipment > Flashcards

Cab Equipment Flashcards

1
Q

If the Low pressure flag is in the raised position what does it indicate ?

A

Pressure in main res. is below safe level (500kPa)

The EP brake is inoperative

The Brake Valve Isolating Cock and Switch is closed

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2
Q

How do you isolate the LP Flag?

A

Isolating cock - EP MR cock

Located behind panel door near park brake. Bottom cock 6/6

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3
Q

What is located in the left hand console panel?

A

Couple button

Uncouple button

Compressor Contactor

Wiper/washer

Traction Equip Reset

Trip

Brake Pipe test switch

bell button

Whistle

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4
Q

What does Couple button do?

A

Allows the coupler to be physically moved for coupling on curved tracks

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5
Q

What do Uncouple Buttons do?

A

They divide two units. Press at same time to divide mech, elec, and air

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6
Q

What does the Trip Latching Lever do?

A

Lowers and raises trip.

Trip in lead cab must be lowered.

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7
Q

What does the Compressor Contactor switch do?

A

Turns the air compressor on that motor car on or off

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8
Q

What does the Brake Pipe Test switch do?

A

Activates brake pipe reduction to test operation of brake

Used in conjunction with Bell button

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9
Q

What does the Bell Button do?

A

When BP switch is in off position bell operates.

When BP switch is in on position any bell button in the train will instigate a brake pipe reduction.

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10
Q

What does the Traction Equipment Reset button do?

A

Resets tripped overloads in the traction system when traction motors fail to power or Rheo brakes fail to operate.

(Could be called the overload button)

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11
Q

What is on the Centre Console Panel?

A

Brake Cylinder Guage
- air pressure in brake cylinder
of bogie 1 on car it’s fitted to

Duplex Guage
- red- air pressure in main res.
- white air pressure in BP

Speedometer

Ammeter - electrical current flowing to traction motors

Head light switch - auto, low, high

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12
Q

What is on the Drivers Door Console control?

A

VICERS Button

Pantograph Up/Down Buttons

Cab Light Switch

Light Dimmer Switch

Control Governor Bypass Button

Saloon Door Control Buttons

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13
Q

How do Panto Up/Down buttons work?

A

One Motor Alternator needs to be operational, therefore one panto up. These buttons allow all other pantos to be raised.

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14
Q

What does the Control Governor Bypass button do?

A

Used when operating with red emergency circuit in isolated position. Allows train to be operated when primary safety system (trip) is isolated

Press every 30 seconds

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15
Q

What does the Right Hand Control Panel have on it?

A

Fault lights

Status lights

Marker lights

Centre cab and test light

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16
Q

What Fault Lights are there?

A

Safety System isolation

VICERS

Battery Charger

Local

Line Switch

Rheostatic Brake

Motor Alternator

Air Conditioner

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17
Q

What does the Safety System Isolation light indicate?

A

The Door Loop System has been bypassed to allow traction power to be applied when flashing door light closed is operating.

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18
Q

What does the VICERS fault light indicate?

A

Fault within VICERS system and will need to be isolated via VICERS isolation key switch.

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19
Q

What does the Battery Charger fault light indicate?

A

Fault in battery backup for PA System

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20
Q

What does the Local fault light indicate?

A

There has been an overload tripped within traction equip. Or Rheo braking systems

(Use traction reset button to rectify)

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21
Q

What does the Line SW fault light indicate?

A

Fault in power supply to traction motors or line breaker case

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22
Q

What does the Rheostatic brake fault light indicate?

A

Fault in Rheo brake system

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23
Q

What does the Motor Alternator fault light indicate?

A

The MA has stopped outputting power somewhere on the train

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24
Q

What does the Air Conditioner fault light indicate?

A

Off - all AC working

Steady - one AC failed in at least one carriage

Flashing - two AC failed in at least one carriage

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25
Q

What are all of the Status Lights?

A

Supply - always illuminated

Wheel Slip

Park Brake

This Car

Centre Cab

Test Button

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26
Q

What are the four positions on the Marker Lights?

A

Auto - for lead and trail position

Red - when lights req. to be held in red

White - When lights req/ to be held white

Centre Cab - when marker lights need to be extinguished

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27
Q

What happens if marker light switch is in the Auto, Red or White position in the centre cab?

A

The door loop system will not be continuous throughout the train. Train will not operate

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28
Q

How does the emergency marker light system work?

A

Emergency marker illuminates for 2 hours then need to be reset.

Reset by flicking to another position and ten back to desired position.

Needs to be done in lead and trailing cabin

29
Q

how does the stabling indicator light work?

A

Illuminates when stabling

Marker light switch in AUTO
Train-lined Panto Down button pressed
Marker lights turn red at both ends
Stabling indicator flashes for 15 mins

After 15 mins the indicator and marker lights will turn off

30
Q

If the Marker light switch is left in RED or WHITE instead of AUTO and the Train-lined Pantograph Down button is pressed what will happen?

A

Marker lights will remain in their set position for 2 hours

The stabling light will remain illuminated for 1 hour and 45 minutes

Then it will flash for 15 mins

After 15 mins the indicator and market lights will turn off

31
Q

What are the positions of the Reverser?

A

OFF - SPB applied

FORWARD

NEUTRAL - Train-lined SPB after 60 secs

REVERSE

32
Q

What happens when Reverser is placed in FORWARD or REVERSE?

A

The handle of the Master Controller will release the Pilot Valve

This causes emergency brake application.

To prevent , hold down MCH or depress foot operated Pilot Valve prior to moving the Reverser

33
Q

What are the positions of the Master Controller?

A

Notch 0 - COAST - roll, no power

Notch 1 - SHUNT - lowest power

Notch 2 - SERIES - for slow running

Notch 3 - PARALLEL - more power

Notch 4 - WEAK FIELDS - quick acceleration

34
Q

Which notches should you use to avoid slipping in wet conditions?

A

Notch 2 or 3

35
Q

How do you release train-lined SPB?

A

Reverser in FORWARD, NEUTRAL or REVERSE

Press GREEN park brake OFF button for 5 seconds

36
Q

How do you apply train-lined SPB?

A

Reverser to OFF

Press RED park brake ON button for 5 seconds

37
Q

High on the right hand cab wall panel what do you have?

A

A row of circuit breakers

Motor Cut-out Panel - for isolating motors

EP Valves to control Local Pants and MA

Auxiliary start button to start all MA’s on train (Train-lined MA Start Button)

Cab Area Isolation Switches - Panto, Rheo, Aux

38
Q

What is on the Drivers lower right hand wall control panel?

A

Saloon Lights - 2 seconds

MAD Button - 10 second intervals

Cab Air Booster

Cabin Heater

Door Indicator - dimmer

Cab Speaker

Loss of Overhead, Shutdown Module (LSM) isolating switch

39
Q

What does the LSM switch do?

A

Protection system for substations

When it detects a reduction in voltage it turns off the trailing MA’s

If travelling less then 8km/h Pantos will drop

When placed in off position the the LSM system will not operate and:
- Pantos will not raise or remain raised
- MA’s will not start
- Pantos lower for no apparent reason
- EP Circuit breaker continually trips

Must be on unless train defect requires it to be isolated

40
Q

What does the Pantograph Isolating Switch do?

A

Electrically isolates pantograph EP valve on that motor car preventing it from being raised or lowered by the electrical button on any motor car

41
Q

What does the Rheostatic Brake Isolating Switch do?

A

Isolates the rheostatic brake on that motor car only

42
Q

What does the Auxiliary Isolating Switch do?

A

Prevents the Local Motor Alternator from being activated by any auxiliary start button on the train

43
Q

What are the Cab Area Isolating Cocks?

A

Wiper Washer cock - no longer in use

Uncouple Isolate Cock - isolates flow of main res. air to pneumatic couple button

Whistle Isolation Cock - prevents it from operating

44
Q

What is the VICERS Whistle Isolation Cock?

A

For maintenance personnel only. It prevents the whistle from sounding during testing.

Drivers are to check that it is in the vertical position

45
Q

What does the Brake Valve Isolating Cock and Switch (BVICS) do?

A

Controls flow of:

Main Res. air to the auto air brake valves and into the Brake Pipe through the Brake Controller

Electrical current to the EP and Rheo Brake Selector switches in the Brake Controller

Electrical current to the low-pressure flag and lock-out magnet valve

Electrical current to the door monitoring circuits for the blue door closed lights

46
Q

What does the EP Circuit Breaker do?

A

It protects EP brake circuit.

It’s an on/off switch for EP/Rheo braking

Train will operate on air brakes

47
Q
  1. What does the DC Supply Circuit breaker do?
A

Protects DC supply circuit.

It is train-lined

Only one DC Supply Circuit breaker needs to be set for the train to remain in service

48
Q
  1. What does the Control Circuit Breaker do?
A

Protects:

Control Circuit Reverser
Master Controller
Rheo Brake
Panto Raise and Lower
Traction Overload Reset
Control Governor

The train will fail if tripped - constantly flashing blue doors closed light

49
Q
  1. What does the Auxiliary Control Circuit Breaker do?
A

Protects:

Bell
Auxiliary Start
Doors Release/Close
Saloon Lights
Couple/Uncouple
Air con#1 control
Local Rheo brake
Scharfenberg self-centering

The train will fail if it trips with the saloon doors in open position

50
Q
  1. What does the Compressor Governor Circuit Breaker do?
A

Protects?

110vDC compressor governor circuit

When tripped the CG on that MC will no longer monitor main res. pressure.

Train-lined SPB are on this circuit and will not operate

51
Q
  1. Compressor Sync Circuit Breaker?
A

We don’t touch

52
Q

What does the Traction Motor Cut Out Switch do?

A

Isolates traction motors in the car it is located on. Traction motors will not power, Rheo brake will not operate, any traction related fault lights will extinguish

Motors can be isolated completely or in pairs - 1 & 2 or 3 & 4

The Line SW light will illmuminate

53
Q

What are the Van Area Isolating Cocks?

A

Panto EP Valve

MA EP Valve

Trip Gear Raise / Lower switch

BP Sensor

Panto and MA EP Valves

EP MR (Stop Flag)

54
Q

What does the Panto EP Isolating Cock do?

A

Isolates flow of main res. air to the local Panto EP raise valve

Also allows air to pass, causing Panto on that motor carriage to lower - preventing it from being raised remotely

55
Q

What does the MA EP Isolating Cock do?

A

Isolates the flow of main res. air to the local MA start EP valve

Also prevents MA from starting via the axillary start button from any motor

56
Q

What does the Trip Gear Isolating Cock do?

A

Isolates the flow of control res. air to the trip latching lever.

When isolated the trip will lower irrespective of the position of the trip latching lever

57
Q

What does the Brake Pipe (BP) Sensor Isolating Cock do?

A

Isolates the flow of BP air to the Scharfenberg uncoupling governor allowing the coupler to uncouple regardless of BP pressure

58
Q

What does the Panto and MA isolating Cock do?

A

Isolates the flow of main res. air to the local:

Pantograph raise EP Valve
Motor Alternator start EP Valve

For fitters only

this valve is the same as isolating the first two

59
Q

What does the EP Main Reservoir Isolating Cock do?

A

Isolates the flow of main reservoir air to the stop flag.

When isolated the low pressure flag will rise

60
Q

What is in the lower cabinet below the van area isolating cocks?

A

Pantograph storage reservoir guage

Pantograph Reservoir Cock

Pantograph Compressor Push Button and Circuit Breaker

Pantograph two way cock

61
Q

What does the Pantograph Storage reservoir Guage do?

A

Indicates the amount of air pressure available in the pants storage res.

Res. is a backup supply for when the main res. has insufficient air to raise the local panto

62
Q

What does the Pantograph Reservoir Cock do?

A

controls passage of main res. air to and from the pants storage res.

63
Q

What does the Pantograph Compressor Push button and Circuit Breaker do?

A

Turns the battery-operated pantograph compressor on and off

It will operate for 3 mins and turn itself off

64
Q

What does the Pantograph Two Way Cock do?

A

Allows air from the battery-operated compressor to flow to the pants to raise it

65
Q

What do the Local Park Brake Apply and Release buttons do?

A

They individually apply or release park brakes on a motor car.

They are pneumatic

66
Q

What does the Door Loop Bypass Key switch do?

A

It is turned to isolate to allow for Traction power to be available of the train has a Flashing Door Closed Light

The VICERS key is used to isolate the key switch

Once turned it cannot be returned to normal position

67
Q

Where are the Saloon area switches and circuit breakers?

A

Above saloon door number 3 in every car.

68
Q

What do the Saloon area switches control?

A

Lights 1-3
Lights 4-6
Doors ‘A’ Isolate
Doors ‘B’ Isolate
AC 1
AC 2
PA speaker isolate
GPO on/off switch

69
Q

What are the components fitted to the PLC?

A

Door Chimes
Door Secondary Release function
Door Open-Close button
Door delay closing relay
Foot Pilot Valve
Control Governor Bypass Button
Secondary Pilot Valve
Door Loop Bypass controls

The PLC has a circuit breaker attached. If it trips all of the above will not be available

Comeng Traction (16 decks)

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