180 Passout

Question 1

The engines are running and you have brake release. List 3 reasons why you may not be able to gain traction power.

Answer 1

Traction circuit not engaged – press Engine Start button to engage traction circuit,
DRA in,
SDO away from normal,
CPBC opened too quickly,
Gearbox problem

Question 2

List 4 things that would prevent an engine from being started.

Answer 2

Engine Emergency STOP button pressed, 
Shore supply connected, 
Engine isolated via SWR ENI, 
Voith Rack dead, 
CB-TRM tripped, 
Fire system isolated

Question 3

List 8 causes of a failure to obtain Brake Release.

Answer 3

AWS System fault,
DSD fault, DVD fault,
Emergency Brake CPBC or Plunger in either cab, BCU defective,
CB LBS tripped,
Drum switch in wrong position or coupler button pressed,
Brake Control MCB in either cab,
Loss of Door Interlock, PASSCOMM / EGRESS

Question 4

If the Emergency brakes applied, released, the engine shut down, and the overspeed light illuminates what could be the cause?

Answer 4

CB-TRM tripped

Question 5

If the brakes apply in Full Service and will not release, what is the cause?

Answer 5

Defective BCU
AWS MCB Tripped
Brake Plunger operated
Train Wiring fault – will need to operate the Brake Fault Override (CB-LBS IN 3901)

Question 6

List the 5 steps for isolating the Parking Brake

Answer 6

Check status light in 3901 cupboard
Operate the Parking Brake Interlock Isolation Switch
Operate the Parking Brake Isolation Cock on the Brake Frame
Operate the 3 x ‘T’ Parking Brake actuators on underneath the leading bogies
Rotational Test

Question 7

How many compressors are there on a unit, and where are they?

Answer 7

2 – on car 509 and 559, (E&C)

Question 8

You are unable to build up main reservoir pressure. List 3 possible causes.

Answer 8

Faulty Compressor-Check and reset CB-CM in 3901- Check and reset CB-CMMA in 4901
Defective Compressor in C or E and operate SWR-CCI to run compressor continuously
RCD at bottom of 4901 cupboard tripped
Leaks on air system – suspension, horn, inter-car connection, main reservoir, brake system,
If fault is on A, B, or D then check inter-car connections

Question 9

Under what circumstances would you use the “Obstacle Close & Lock” button

Answer 9

When you are unable to close the unit doors, and once the guard has assured you The doors are clear as the doors will close with considerable force.

Question 10

List 2 MCB’s that could affect normal door operation?

Answer 10

1. Door Control MCB
2. Door Close MCB
3. CB-TRM if tripped on leading unit

Question 11

What is the purpose of the TUDI switch, and in which cab would you operate it?

Answer 11

To enable traincrew to lock out the rear unit’s doors of a 10 car formation. Must be operated in the rear cab of the leading unit

Question 12

State the three things on a class 180 which will cause the Doors to close without obstacle detection potentially causing injury to anyone caught in the door.

Answer 12

1. Obstacle Close and Lock button operated
2. Auxiliaries Trip Button operated
3. CB-TRN in 3901 tripped.

Question 13

What must you do after dealing with a dragging brake problem?

Answer 13

Carry out a rotational test before proceeding.

Question 14

List your actions on becoming aware of a Passcom or Egress activation.

Answer 14

If departing a station stop the train.
If on a running line override the call, proceed
until at a safe and suitable place,
use the Communications Panel to speak to the person when it is safe to do so

Question 15

You are travelling along and your Fire bells ring. On looking out of the window you see that the hazard light is illuminated. On coming to a stand you notice that flames are visible and the Fire system does not appear to have activated.

Answer 15

Operate Air-Con Stable,
Proceed below Sole-bar with portable fire bottle and pull Manual Fire Pull to fire second bottle, and use portable fire bottle if needed.

Question 16

Upon mobilising your unit your fire bells ring and you notice your Fire System has deployed on you middle vehicle. You confirm that a Fire has not occurred however your system has discharged. What do you need to isolate?

Answer 16

SWR-ENI and SWR-FEI on the affected vehicle.

Question 17

State what the result of Management Computer 1 MCB tripping. Can you come into service from a maintenance depot?

Answer 17

Loss of customer information. Cannot come into service from a maintenance depot, and the signaller must be informed.

Question 18

State what the result of Management Computer 1 & 2 MCB tripping. Can you come into service from a maintenance depot?

Answer 18

No
All traincrew communication for cab to cab,
PA, PASSCOMM, and so on will be lost

Question 19

State which MCB’s will effect train operation if they trip in the rear cab.

Answer 19

Train Door Interlock,
Brake Control,
Passenger Alarm

Question 20

In 3901 what will the effect of CB-ALTC be?

Answer 20

Loss of 24v feed to Hydrostatic system for the Alternator. Need to cross feedback from other vehicle by locally shutting down engine.

Question 21

In 3901 what will the effect of CB-PXF be?

Answer 21

Will not matter under normal operation, but will prevent a cross feed in the event of a loss of electrical supply on the affected vehicle

Question 22

In 3901 what will the effect of CB-MDC2 be?

Answer 22

Loss of Cooler Group Controller resulting in an engine shut down

Question 23

How would you check the amount of sand available on the class 180?

Answer 23

By opening and checking the sand boxes fitted on the driving vehicles.

Question 24

In what brake position and under what conditions does the Auto Sander operate?

Answer 24

Above 50% of brake on the CPBC, and when WSP is detected.

Question 25

What MCB in 3901 will affect the availability of sanding?

Answer 25

CB-SDG on A & E

Question 26

Identify the different positions of the SDO switch in this diagram and state which doors each position will release in both the 5 and 10 Car formation.

Answer 26

Normal – Door release not possible
0/5 – Door release only possible on the front 5 of a 10 car
1/6 – Door release front 1 of a 5 car or front 6 of a 10 car
2/7 – Door release front 2 of a 5 car or front 7 of a 10 car
3/8 – Door release front 3 of a 5 car or front 8 of a 10 car
4/9 – Door release front 4 of a 5 car or front 9 of a 10 car
5//10 – All Vehicles – All doors of a 5 or 10 car unit.

Question 27

State which position the SDO must be in to enable power to be available.

Answer 27

Normal

Question 28

State how and when you would test the SDO switch.

Answer 28

Use the Door Test facility on the TMS – must be done during a PREP

Question 29

State the risks of incorrect operation of the SDO switch especially if operating at short platforms.

Answer 29

If the SDO is set to the wrong position there is a risk that doors off the platform will be released and customers could fall from the train.

Question 30

What isolation cock can you operate and where if the HVAC system in the cab fails?

Answer 30

The emergency face vent cock in the panel below the centre panel of the driving desk

Question 31

Where on the class 180 would you find the Parking Brake Application cock, and would you need a carriage key to access it?

Answer 31

At the drivers knee. You do not need a carriage key as there is a pull release for this panel

Question 32

External Door Isolation. Explain how you would operate this equipment to isolate an external door.

Answer 32

Use a carriage key to unlock the door isolation panel above the door. Operate the black pull handle mechanism isolate the door.

Question 33

Vestibule Door. Identify the two isolation switches labelled on this picture and explain how you would operate them to isolate the vestibule door.

Answer 33

Pneumatic Isolation switch
Electrical isolation switch

Question 34

The Electrical System. On the diagram below is detailed all of the locations of electrical systems on the class 180 and what sort of devices are contained, (eg: Mcb’s / SWR’s / RCD’s).

Answer 34

Driving cab MCB Panel
Safety System Isolation Panel –Driver Key/Switches
3901 Cupboard – SWR / MCBs / Push Buttons
4901 Cupboard – RCDs / MCBs / Fuses

Question 35

State the consequences of moving a class 180 with an equipment raft door open?

Answer 35

Because the door opens outwards and upwards it can collide with building and other trains that pass the class 180

Question 36

In order from the driving cab state the names of the equipment rafts below the sole-bar.

Answer 36

Fuel / Brakes Batteries / Cooler Unit / Engine / Gear Box

Question 37

Below is the Crew-Door of a class 180. Please identify each of the items of equipment. What would be the consequence of opening a crew-door in service before the doors had been released?

Answer 37

External Egress Slide
Crew Door Isolation Lock
External Crew Door Close / Release Control – If opened before the doors are released the Driver to Guard buzzer will not function

Question 38

Under Rule Book Module SP which speeds apply to the class 180?

Answer 38

MU / HST

Question 39

In addition to TPWS / AWS what additional safety system is fitted to the class 180?

Answer 39

ATP – Automatic Train Protection

Question 40

What type of brake system is fitted to a class 180 (both types), when does the secondary system operate (if commissioned), and what indication would you have on the brake gauge?

Answer 40

Disc Brake Variable Electro-Pneumatic –
Dynamic Braking above 30mph and when WSP is not operating - the brake cylinder will momentarily rise and then fall towards zero.

Question 41

What provides the primary and secondary suspension on a class 180?

Answer 41

Hydraulic Primary

Air Bag secondary

Question 42

Explain the order of fault finding

Answer 42

A logical progression from the driving desk indications / TMS / MCB’s / Gauges then Hazard Lights, and other indications down the train.