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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
What are all of the Status Lights?
Supply - always illuminated Wheel Slip Park Brake This Car Centre Cab Test Button
26
What are the four positions on the Marker Lights?
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
27
What happens if marker light switch is in the Auto, Red or White position in the centre cab?
The door loop system will not be continuous throughout the train. Train will not operate
28
How does the emergency marker light system work?
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
how does the stabling indicator light work?
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
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?
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
What are the positions of the Reverser?
OFF - SPB applied FORWARD NEUTRAL - Train-lined SPB after 60 secs REVERSE
32
What happens when Reverser is placed in FORWARD or REVERSE?
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
What are the positions of the Master Controller?
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
Which notches should you use to avoid slipping in wet conditions?
Notch 2 or 3
35
How do you release train-lined SPB?
Reverser in FORWARD, NEUTRAL or REVERSE Press GREEN park brake OFF button for 5 seconds
36
How do you apply train-lined SPB?
Reverser to OFF Press RED park brake ON button for 5 seconds
37
High on the right hand cab wall panel what do you have?
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
What is on the Drivers lower right hand wall control panel?
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
What does the LSM switch do?
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
What does the Pantograph Isolating Switch do?
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
What does the Rheostatic Brake Isolating Switch do?
Isolates the rheostatic brake on that motor car only
42
What does the Auxiliary Isolating Switch do?
Prevents the Local Motor Alternator from being activated by any auxiliary start button on the train
43
What are the Cab Area Isolating Cocks?
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
What is the VICERS Whistle Isolation Cock?
For maintenance personnel only. It prevents the whistle from sounding during testing. Drivers are to check that it is in the vertical position
45
What does the Brake Valve Isolating Cock and Switch (BVICS) do?
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
What does the EP Circuit Breaker do?
It protects EP brake circuit. It's an on/off switch for EP/Rheo braking Train will operate on air brakes
47
2. What does the DC Supply Circuit breaker do?
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
3. What does the Control Circuit Breaker do?
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
4. What does the Auxiliary Control Circuit Breaker do?
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
5. What does the Compressor Governor Circuit Breaker do?
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
6. Compressor Sync Circuit Breaker?
We don't touch
52
What does the Traction Motor Cut Out Switch do?
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
What are the Van Area Isolating Cocks?
Panto EP Valve MA EP Valve Trip Gear Raise / Lower switch BP Sensor Panto and MA EP Valves EP MR (Stop Flag)
54
What does the Panto EP Isolating Cock do?
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
What does the MA EP Isolating Cock do?
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
What does the Trip Gear Isolating Cock do?
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
What does the Brake Pipe (BP) Sensor Isolating Cock do?
Isolates the flow of BP air to the Scharfenberg uncoupling governor allowing the coupler to uncouple regardless of BP pressure
58
What does the Panto and MA isolating Cock do?
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
What does the EP Main Reservoir Isolating Cock do?
Isolates the flow of main reservoir air to the stop flag. When isolated the low pressure flag will rise
60
What is in the lower cabinet below the van area isolating cocks?
Pantograph storage reservoir guage Pantograph Reservoir Cock Pantograph Compressor Push Button and Circuit Breaker Pantograph two way cock
61
What does the Pantograph Storage reservoir Guage do?
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
What does the Pantograph Reservoir Cock do?
controls passage of main res. air to and from the pants storage res.
63
What does the Pantograph Compressor Push button and Circuit Breaker do?
Turns the battery-operated pantograph compressor on and off It will operate for 3 mins and turn itself off
64
What does the Pantograph Two Way Cock do?
Allows air from the battery-operated compressor to flow to the pants to raise it
65
What do the Local Park Brake Apply and Release buttons do?
They individually apply or release park brakes on a motor car. They are pneumatic
66
What does the Door Loop Bypass Key switch do?
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
Where are the Saloon area switches and circuit breakers?
Above saloon door number 3 in every car.
68
What do the Saloon area switches control?
Lights 1-3 Lights 4-6 Doors 'A' Isolate Doors 'B' Isolate AC 1 AC 2 PA speaker isolate GPO on/off switch
69
What are the components fitted to the PLC?
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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