Traction Flashcards

(69 cards)

1
Q

What type of coupler do 15X trains have?

A

BSI coupler.

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2
Q

What does BSI stand for?

A

Bergische Stahl-Industrie.

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3
Q

How many electrical connection pins are there in the electrical connection block on a BSI coupler?

A

103 (50 fixed and 53 sprung loaded).

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4
Q

What type of brake do 15X trains have?

A

Tread.

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5
Q

How many tread brakes are there per wheel?

A

2.

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6
Q

How does the parking brake work?

A

Spring applied, air released.

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7
Q

What are the engine driven auxillaries?

A

• Compressor.
• Alternator.
• Lube oil pump.
• Water/coolant pump.
• Fuel pump.
• Hydrostatic pump.

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8
Q

What does the alternator do?

A

Generates electricity.

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9
Q

What does the compressor do?

A

Generates air pressure.

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10
Q

What does the lube oil pump do?

A

Lubricates the engine.

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11
Q

What does the fuel pump do?

A

Feeds the engine with fuel.

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12
Q

What does the hydrostatic pump do?

A

Enhances cooling capability.

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13
Q

What sections comprise the BSI coupler?

A

• Main air connection.
• Mechanical connection.
• Electrical connection.

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14
Q

What does the gathering horn do in a BSI?

A

The gathering horn guides the couplings into each other as they close for coupling.

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15
Q

What does the uncouple piston do in a BSI?

A

The uncouple piston is operated by the driver when the uncouple button is pressed. It pushes the uncouple arm out, which in turn retracts the coupling pin, mechanically splitting the units.

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16
Q

What does the tommy bar do in a BSI?

A

The tommy bar is used for retracting the electric connection block.

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17
Q

What are the ends of a 15X train called?

A

The 52 end and the 57 end.

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18
Q

What are the specs of a 150/0?

A

Vehicles: 3
Max speed: 75mph
Brake type: Tread
Max in multiple: 12 vehicles
Suspension type: Primary & secondary
Coupler: BSI

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19
Q

What are the specs of a 150/1?

A

Vehicles: 2
Max speed: 75mph
Brake type: Tread
Max in multiple: 12 vehicles
Suspension type: Primary & secondary
Coupler: BSI

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20
Q

What are the specs of a 150/2?

A

Vehicles: 2
Max speed: 75mph
Brake type: Tread
Max in multiple: 12 vehicles
Suspension type: Primary & secondary
Coupler: BSI

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21
Q

What are the specs of a 155?

A

Vehicles: 2
Max speed: 75mph
Brake type: Tread
Max in multiple: 12 vehicles
Suspension type: Primary & secondary
Coupler: BSI

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22
Q

What are the specs of a 156?

A

Vehicles: 2
Max speed: 75mph
Brake type: Tread
Max in multiple: 12 vehicles
Suspension type: Primary & secondary
Coupler: BSI

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23
Q

What are the specs of a 158?

A

Vehicles: 2 or 3
Max speed: 90mph
Brake type: Disc
Max in multiple: 12 vehicles
Suspension type: Primary & secondary
Coupler: BSI

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24
Q

What are the specs of a 170?

A

Vehicles: 3
Max speed: 100mph
Brake type: Disc
Max in multiple: 12 vehicles
Suspension type: Primary & secondary
Coupler: BSI

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25
What are the specs of a 195?
Vehicles: 2 or 3 Max speed: 100mph Brake type: Dynamic/disc Max in multiple: 3 units Suspension type: Primary & secondary Coupler: Delner type 12
26
What are the components of the drive line?
• Alternator • Compressor • Engine • Gear box • Primary drive • Secondary drive
27
What is the cardan shaft?
The cardan shaft are metal cylinders that rotate and link the components of the drive line together.
28
What does the Marton Air Box do?
The Marton Air Box gives electrical instructions to the gear box and controls the direction selection of the vehicle (fwd, neu, rev, stand still, fill, primary influence).
29
What is the difference between the alternators on a 150/1 vs a 150/2?
The 150/1 has one alternator per vehicle, whilst the 150/2 has two alternators per vehicle.
30
What is the difference between the emergency egress switches on a 150/1 vs a 150/2?
The emergency egress switches are located on alternate saloon doors on the 150/1, but located on every saloon door on the 150/2.
31
What is the difference between the gangway doors on a 150/1 vs a 150/2?
The 150/1 doesn’t have a connecting gangway door but the 150/2 does have a connecting gangway door.
32
What is the difference between the local door on a 150/1 vs 150/2?
The local door on a 150/1 is a slam door that needs to be manually locked, whilst the local door on a 150/2 is power operated and won’t release if the driver’s desk is energised.
33
Explain the reasons why the brakes of a train would not be able to release.
1. AWS/TPWS circuit breaker tripped in the energised cab. 2. AWS/TPWS defective in the energised cab. 3. Brake Control Circuit Breaker tripped in any vehicle. 4. BSI coupler not in the correct position (couple button pressed). 5. Compressor speed up switch at 'on' in any cab. 6. Passenger communication apparatus operated. 7. Driver Safety Device not depressed with the direction selector in for/rev position. 8. Direction selector at 'off' in the leading cab or away from 'off' in any other cab. 9. Door open or a door release given. 10. Emergency bypass switch operated in a cab that is not the leading cab. 11. Emergency position of the brake controller in any cab. 12. Low main air pressure (4.5 bar). 13. Train Control Circuit Breaker in the energised cab only.
34
Describe what happens if the EBS has been operated in another cab? How would you know and what would you do?
If the EBS has been operated in another cab, you will be unable to release your brakes. Depending on the train, a red and white flag may be raised or a blue light may be displayed. If this has happened, you need to operate the EBS in your own cab.
35
What is EBS and what does it do?
The Emergency Bypass Switch bypasses train wire 4, allowing the brakes to be released when a fault occurs, as long as the fault is not in the energised cab. It is normally used when a brake fault in the leading cab can’t be rectified.
36
What should you do if you can’t release your brakes due to the BSI couple relay?
Turn the direction selector to neutral and hold the uncouple button for 5 seconds.
37
What should you do if you can’t release your brakes due to an open door/door release and how would you know this has happened?
Not only may you see an open door, but the body side indicator lights would all illuminate if the conductor has released the doors. The connection to train wire 4 breaks if any of the doors are open or unlocked, therefore you must close the door to regain brake release.
38
What is the first thing you MUST do if there is an unsolicited brake demand?
Check the brake demand light. If the light is flashing, the unsolicited brake is due to driver error. If the light is not illuminated, start fault-finding to figure out what caused the brakes to apply.
39
What position must your brake controller be in when the train isn’t in operation? What will happen if the train’s brakes are left in the emergency position?
The brake controller should be left in step 3/full service. If the brake controller is left in the emergency position in any cab, you will not be able to release the brakes, and you must return it to step 3.
40
What would happen if the brake control circuit breaker trips?
The body side indicator light will illuminate on the affected vehicle and the brakes will apply.
41
What should you do if the brake control circuit breaker trips?
If tripped in the leading cab, you should attempt to reset it (max 3 attempts). If unable to do this, operate the EBS in the rear cab and perform a WDM or get assistance from the leading end. If tripped in the rear cab, operate the EBS and continue.
42
What should you do if the AWS/TPWS circuit breaker trips?
Attempt to reset it (max 3 attempts). If still not working, carry out full AWS/TPWS isolation.
43
What position must the direction selector be in for the brakes to be released?
Either forward or reverse. In neutral, the electrical connection to train wire 4 will be broken.
44
Where does the power loop run through?
The train control circuit breaker and the doors.
45
What is the TIS and where is it?
TIS stands for Traction Interlock Switch and it is a sealed switch found next to the circuit breakers behind the driver in the cab.
46
When should you operate the TIS and why?
When a power operated door fails to close, opens in traffic or a door interlock becomes defective. The TIS is provided to overcome this problem in order to allow the train to be moved to a point where it can be taken out of service.
47
What would cause the BIL/hazards lights to illuminate?
Track circuit actuator Local door open Brake circuit breaker tripped Fire system activated Door release given (all lights) Pass comms operated
48
How would you know if the pass comms had been operated and what would you do?
The brakes would apply and the BIL would illuminate on the affected vehicle. To regain brake release, you must reset the pass comms apparatus.
49
What will happen if the low main air pressure falls below 4.5 bars?
The brakes will apply. In order to release the brakes, you will need to rectify the leak and restore air pressure.
50
What must you do once you have operated the TIS?
Before setting off, along with the conductor you must check all doors are closed and locked. The conductor should then check all doors released after each stop. You must agree a safe method of dispatch as use of the buzzer may be lost. After the journey, you must return the TIS to the normal position and put an entry in the repair book.
51
What would cause the engine to shut down?
• Fire system activated • Fire system MCB tripped • Fire system test button • Fire integrity lost • Loss of electrical supply • Low water/coolant level • Low lubricating oil pressure • Local control circuit breaker tripped • Engine stop button • Driver’s master key timer
52
What would happen if the train control circuit breaker tripped in a 150/1?
The train would lose all power but the brakes would not apply.
53
What will happen if the compressor speed up switch is left turned on in any of the cabs and what should you do?
You won’t be able to get brake release, therefore you must switch off all compressor speed up switches.
54
What will happen if the train control circuit breaker trips?
• Dead desk: - The brakes will apply. - Loss of speedometer, DSD, DRA, GSMR, TCA and couple/uncouple buttons.
55
What should you do if the train control circuit breaker trips?
If tripped in the energised cab, attempt to reset it (max 3 attempts). If still not working, change ends and operate TIS in a class 150/1, and both TIS and EBS in 150/2. May also seek assistance from leading cab. If tripped in the rear cab, there will be a complete loss of power. Attempt to reset TCCB and if still not working, EBS and TIS from leading cab.
56
Which batteries do non-essential systems take power from?
Auxillary.
57
Which batteries do essential systems take power from?
Starter.
58
What should you do if the earth circuit breaker trips?
Turn the direction selector to off and attempt to reset it. Unlike other circuit breakers, you can only do this once.
59
What are the non-essential circuit breakers?
• GSMR • Heat control • Door supply • Heat fans • Main lights • Emergency lights • RH screen • LH screen • End lights 2 • End lights 1
60
What are the essential circuit breakers?
• Fire system • Track circuit actuator (TCA) • Earthing • Door control • Brake • AWS/TPWS • PA • Remote supply
61
What will happen if the GSMR circuit breaker trips?
GSMR will be inoperative in that cab. The conductor must monitor the GSMR in the rear cab in case of emergency.
62
What will happen if the door supply circuit breaker trips?
The passenger doors will lose power in that vehicle.
63
What is the difference between the AWS full isolation on the 150/1 vs the 150/2?
On the 150/1, the AWS full isolation is located between the driver and 2nd man’s side. It is a sealed handle. On the 150/2, the AWS full isolation is located on the 2nd man’s side windscreen and is a flap.
64
What is the difference between the local control circuit breaker tripping on a 150/1 vs a 150/2?
In the 150/1, the front engine would shut down and the rear engine would start to idle. You would not be able to get brake release. In the 150/2, the front engine would shut down but power could still be taken from the rear engine. There would be no effect on the brakes.
65
What are you looking for when checking the BSI couplers before coupling?
• Both electrical connection block covers are fully closed, show no signs of damage and are level with one another. • Tommy bar is horizontal and held in place by grommets. • The uncoupling levers should be in the normal position. • Both couplers are central and aligned with each other vertically and horizontally.
66
Explain the coupling procedure.
1. Check for a ‘non-multi’ sticker and a ‘not to be moved’ board. 2. Approach the train, stopping at least 2 metres away. 3. Perform a visual inspection of the BSI couplers and their alignment. 4. Bring the trains within 2ft of each other, checking the coupler alignment. 5. Gently make contact with the other train. 6. Perform the pull test to check mechanical connection. 7. Turn the direction selector to neutral and hold the couple button for 5 seconds to form an electrical connection. 8. Turn the direction selector to forward, apply a step 2 brake and check brake cylinder pressure. 9. Turn direction selector to neutral and check the brake cylinder pressure in the other unit’s cab. 10. Return to original cab, perform checks and static brake test. Turn off headlights, markers and cab lights.
67
Explain what a pull away test is and how to perform it?
The pull away test checks the mechanical connection between couplers. To perform the test, turn the direction selector to 'reverse', release the brake and take power. The units will separate if not properly mechanically connected.
68
Explain the uncoupling procedure.
1. Ensure the area is clear of people, buffer stops and signals. 2. Turn the direction selector to neutral and hold the uncouple button for 5 seconds. 3. Turn the direction selector to reverse and reverse a maximum of 2ft. 4. Apply the brakes and turn the direction selector to neutral. 5. Check the electrical connection block covers are fully closed and the uncouple lever has returned to the normal position. 6. Set the headlights as appropriate and hold the uncouple button in the 2nd unit for 5 seconds.
69
How should stacked shunting signals be read?
From top-to-bottom or left-to-right. The uppermost disc represents the route furthest to the left and the lowermost disc represents the route furthest to the right.