Traction Passout Flashcards
Describe the basic principles of the air production system
Air is drawn by the compresser which then passes it to the engine stop cylinder and throttle air actuator. Then on to the main reservoir tank, pressure is controlled by a compressor governor which dumps excess air to atmosphere via the purge valve. Upon leaving the main res tank air is passed to the distribution system via MRPIC
Describe the basic operation of the hydrostatic system
A reservoir tank supplies oil to 2 hydrostatic pumps one which drives the radiator and the other tank drives the alternator
Describe what parts of a turbo require air
Doors, suspension, Engine, Gearbox, Horns, Windscreen washers/Wipers, Uncoupler, Parking Brake, Toilet and Sander
Describe max speed of 165/166
Potential problem with overspending
165/0 - 75mph
165/1 - 90mph
166. - 90mph
Unit will suffer damage to transmission
Describe what happens when the Train Control MCB trips in the leading cab, the effects on the train and the risk if unable to reset.
An emergency brake application Flashing passcom, no sound Door interlock red on FIP Parking Brake and TCA light out on FIP GSMR and PA out If unable to reset the cab is out of use operate PBIC and BCIC on unit affected. Assistance required from front, passengers moved to assisting unit, driver should ride in the rear cab to operate EPBAC. In leading cab of assisting unit isolate passcom, traction interlock and EBS Max speed 5mph
Describe Purpose of EBS and the risks operating this equipment and when is it necessary.
The EBS gives an emergency brake supply when necessary to isolate the normal braking systems. This is for emergency use only and set must be taken out of use immediately line is cleared.
Describe the effect of Train Control MCB tripping in the rear cab.
An emergency brake application
Flashing passcom, no sound
Door interlock red on FIP
Flashing general fault light
If unable to reset the cab is out of use operate PBIC and BCIC on rear cab. Passengers moved to another coach, lock coach out of use.
Competent person should ride in the rear cab to operate EPBAC. In leading cab of unit isolate passcom, traction interlock and EBS
Max speed 5mph
Describe why an engine might revert to idling other than as a result of normal shutting off power and what action to take.
High coolant temperature
High transmission temperature
Unit declared a failure unless berthed and given sufficient time to cool
Describe what happens when the Local Control MCB trips in the leading cab
Engine will stop with no stop indication, no other effect except a loss of power.
Unit taken out of service if unable to reset.
Describe the purpose of the Door Traction Interlock and what actions and risk to take on isolation.
Traction Interlock ensures all doors are closed and secure prior to power being available. Isolated Traction Interlock may have a potential for door not to be closed and power being taken.
Describe what to do if a General Fault light is flashing on the desk.
Track Circuit Actuator
Parking Brake or Transmission ( generator MCB on some 166)
Describe what happens when the Main Air Reservoir Gauge is falling, causing the brakes to apply. How would you deal with the leak.
Close MRPIC and stop engine. Leak should die down and stop. Leave MRPIC isolated restart engine and continue journey.
Describe what action to take if the Earth Circuit Breaker trips.
Reset once, then enter into the fault book.
Describe what action to take if the OTDR fault indicator goes to red. What is wrong?
Inform signaller OTDR not recording.
Describe what action to take if an Air Suspension bag deflates what should you do? And what is the maximum permitted speed following isolation?
Isolated ASRIC, drain all 3 surge tanks
45mph with passengers, linespeed if ECS
Describe what action to take if the Passcom is pulled, what indications would you receive in the cab and how do you reset.
Buzzer sounding and flashing passcom light, press the yellow button by the DSD
You get an emergency break application, flashing passcom, door interlock light red, general fault light flashing red. What’s happened
Train control tripped in rear cab
Describe the maximum number of cars that can be formed together and why?
12 due to the fact that the electrical feed from the front cab won’t reach more than 12 coaches.
Describe what action to take if you were unable to get Traction Interlock and you have seen that a pair of doors had not shut correctly what would you do?
Check the chrome handle hadn’t been operated (butterfly handle) check door for obstructions, push doors closed.
State how you would isolate the DSD and what you are required to do after you have isolated it. What are the risks with running without a DSD
Use master key, isolate Vigilance then DSD. Inform signaller.
The DSD will not operate in the event of the driver becoming incapacitated.
60mph
State what indications would you have if the TCA had failed on a vehicle and how it would affect the train?
Flashing General Fault light in leading cab. Cantrail light and TCA fault light lit on affected car. Reset MCB 3x.
Break glass bar to isolate TCA
Inform signaller if affected car is front or rear
Name the isolation cocks and their purpose that are located up the flap on the DA side of the cab.
Cab Door IC Windscreen/Washer IC Horn IC Uncoupler IC Parking Break Application IC Parking Break Bypass valve Cock
Describe what action to take if the engine stop light is illuminated
Attempt to restart engine at first opportunity (neutral). If engine will not restart further investigation required.
Check coolant, engine oil
Describe what action to take if the fire alarm sounds
Can trail light illuminated on affected car. Check fire is out. If not use manual fire handle, and/or fire extinguisher. Once fire is out isolate engine and isolate fire system on AFFECTED car. Move passengers to other cars, lock and isolate doors and if no one is available to ride in vehicle, stop frequently to check affected car.
Describe what action to take if the DOO (GMSR) fails and what are the risks?
Inform signaller at first opportunity, if detained at signal use SPT only if safe to do so.
Unable to be contacted in an emergency or make emergency calls
Describe what would prevent an engine from starting.
Local Control
Fire system activated/isolated or low fire bottle pressure
Shore supply sockets/Micro switches
Stop button stuck in (local or Cab)
Engine isolated
Low Coolant
Fuel starvation ( engine turns but will not fire)
EFSIC
Cab not switched in
Flat batteries
Low oil pressure ( engine turns, fires but stops after approx 7 seconds
Describe what will apply the brakes when the train is moving (no MCB tripped)
Loss of door interlock (egress) Passcom pulled and yellow button not held down DSD dropped Failure to reset DVD Failure to cancel AWS Low Main Air Low brake Res Air Red button/brake handle operated in either cab Coupler becoming loose uncoupled
Describe what happens when the brake control circuit breaker trips on the leading vehicle and the associated risks
Emergency brake application
Flashing Passcom
Flashing general fault
Parking brake light red
Cantrail lit on effected car
If unable to be reset - unable to drive from that car
Operate PBBC and BCIC and move passengers to another car and lock car out of use.
Assistance require in front, assisting train to operate EBS and Passom
Describe what happens if the Brake Control MCB trips in the rear vehicle and the associated risks
Emergency Brake application Flashing Passcom Flashing General Fault light Parking Brake Light red in Rear cab If unable to reset operate PBBC and BCIC and move passengers out and lock car out of use Competent person to ride in rear cab to operate EPBAC in case of division Max speed 5 mph No brakes on isolated coach
Describe what happens when the train is stood in a platform with the doors released, before the doors are closed you notice that one of the doors close’s and locks. What is the likely cause
Someone has pressed the black button on the end of the coach or door control MCB has tripped
Describe what happens if a passenger come up to your cab and told you they could not get into a vehicle, what is the cause
Door supply MCB has tripped or doors have been isolated
Describe what indications would be received in the driving cab if the generator circuit breaker had tripped.
Battery charge indicator would go red,
Clicking noise behind the panel behind drivers seat
General Fault light red ( may flash on some units)
Generator MCB in tripped position
Unit only viable as long as the battery has power, unit out of use asap
Describe what indications would be received in the driving cab if the generator circuit breaker had tripped in another car
Clicking behind the panel to rear of drivers seat
General fault light red (may flash on some units)
Describe what, if, whilst walking through a turbo unit the internal doors on a vehicle do not open, what is the probable cause?
Generator MCB tripped
Low air pressure
Internal door MCB tripped
Describe what happens if an engine turns but doesn’t fire. What is the cause.
Fuel starvation
Describe what if you have isolated the AWS what must you do and how could this effect the running of the train and the risks this presents.
Inform the signaller and no faster than 40mph maximum unless competent person available = line speed unless fog or falling snow
Enter in repair book
AWS not active so risk of spad
Describe at a platform you press the door close button but are unable to regain door interlock. All doors are closed and the Cantrail lights are out. What would you do to locate the fault. And what action would you take to get the train moving again.
Check the Cantrail lights both sides of the unit. Examine all door control MCB’s if unable to reset isolate doors and move passengers to another vehicle and Isolate Door interlock
Describe what will cause the Cantrail light to illuminate?
Fire system Brake control MCB Door Control MCB Egress Passcom TCA
Describe where you would find the tail lamp bracket
Behind the flap at each end of the vehicle
Describe if the brakes failed to respond in any position of the brake handle including pressing the emergency buttons. What action would you take?
Apply the PBAC under the DA desk and apply the EPBAC in the DA cupboard
Describe which side of the vehicle the Xmas tree is on ?
DA’s side
Describe if after boarding the turbo and setting up the cab ready for departure you discover the brakes will not release and there are no fault lights showing red what could the cause be ?
Cab buttons, emergency brake pushed in Brake handle Low main air Low brake supply air Micro switches on intermediate couplers Micro switches on charger sockets
Describe if you have a main reservoir pipe burst between vehicles how would you deal with it ?
Close the MRPCC either side of the leak
Unit out of service asap
Describe how would you isolate the fire system on the Middle car of a 3 car unit
Inside the saloon open the cupboard to the left of the gangway door at #1 end insert a master key in the fire alarm isolation switch turn key 90* then withdraw it
A red light will illuminate
Describe the method when going to open cupboards in the middle vehicle where the MCB’s are located what must you do to ensure your safety ?
Trip the interior door circuit breaker to prevent door crushing your hand
Name the parts that make up the drive starting from the engine
Engine - fluid flywheel - carded shaft - gearbox - carden shaft - master final drive - carden shaft - slave final drive
Name what drives the compresser
The engine
A blue light is illuminated in the bottom left handed corner of the destination indication box, what does it indicate
That a safety system is isolated
Check repair book for reason and inform control of the units status before continuing
Describe the actions to take when brought to a stand due to an air leak
Upon coming to a stand place the direction controller into neutral and observe the Main Air Gauge. If the pressure rises then the leak is with the Gearbox - select forward and place a bag on the DSD if this is not possible the isolate the DVD/DSD walk around it to find leak,
Describe the 2 main functions of the WSP and describe its basic operation
To reduce wheel slide by rapidly applying and releasing the brakes and to reduce wheel spin by reducing the engine revs until the wheels stop spinning
Describe the function of the auxiliary heater
To top up the coolant temperature if it returns to the engine too cool after passing around the system, and to preheat the engine and saloon in cold weather.
Describe when would a driver have to isolate a pair of saloon heater isolating cocks and why
When a leak is noticed on the floor of a saloon, this prevents further loss of coolant which will stop the engine if too much leaks out.
Describe the meaning of the two toilet retention tank indicator lights and any action necessary
Bottom light lit - 50% full
Top light lit - 80% full lock toilet out of use
Describe the action after operating the warning horn, it will not stop sounding what action would be taken
If there is an air leak, isolate HIC
Inform the signaller and travel at 20mph until unit can be taken out of service
Describe where is the TPWS train stop override button and when it can be used
On the panel above Fault Indicator Lights, used as a tempoary override to pass one signal at danger with authority
Describe how you would make a full isolation of the TPWS system in the event of a fault occurring.
Isolate the AWS/TPWS system by using a spare desk key. Inform signaller immediately that you will running at 40mph
Train not to enter Paddington area
Describe how you would be aware of a TPWS initiated brake application
The brake gauge needle will rise and the brake demand light will flash
Describe when you may receive a brake application via the TPWS system
Driving outside the TPWS limits triggering the OVer Speed Sensor or a SPAD at a stop signal fitted with it
Contact signaller DO NOT RESET AND GO
Describe when authorised to pass a signal at danger equipped with TPWS what action is required ?
The train stop override must be pressed and the signal must be passed within 20 seconds
Demonstrate action in leaf fall / non leaf fall where auto sanders are defective
Driver should evaluate problem in non leaf fall period, if difficulty experienced in stopping. Unit should be taken out. Service
In leaf fall season unit should be taken out of service
Describe the process when he considers the unit to have poor brakes.
Quote the laid down procedure when experiencing poor brakes
This should include the communication protocol as well as the running brake test for the OTMR test
Describe the requirement when a unit has defective brakes on front or rear vehicle.
Demonstrate understanding for connection of another unit to remove failed unit to depot
Describe the requirement when a unit has defective brakes on the Middle vehicle or where brake is not applying correctly
Demonstrate knowledge of running at reduced speed and braking earlier in accordance with available braking capability
Only 1/5 allowed to be isolated when service starts up
Demonstrate action required where the cab buzzer s defective
Unit should come out of service at first available point except when running ECS
State the action taken where a unit divides in service
Driver must state that the unit is not to be moved until authorised by fleet
Fitter to inspect unit before recoupling
Describe the action when the marker lights fail
You must not allow a traction unit to enter service without a
train working headlight or tail lamp on any vehicle that is required to be at the front or rear of a train.
Stop the train immediately
• Arrange for a white light to be displayed at
the front of the train
• Tell the signaller
• Not move the train until instructed to do so
• Carry out the instructions given
• Not allow the speed of the train to exceed
20 mph
• Sound the warning horn frequently so as to
warn anyone on or near the line
Demonstrate the action taken when hustle alarm inoperative
On one door, isolate and lock
All train, make PA announcements
Demonstrate action taken when on train fire equipment, missing or damaged
Lock coach out of use.
Where emergency equipments is missing, train must not be in passenger service
Demonstrate action taken when PA is out of use
On a DO train, passengers must not be allowed to travel in vehicles on which the public address is not working.
Before entering service you must place any of these vehicles out of public use by:
• locking all external doors and labelling them ‘OUT OF USE’
• closing and locking the vestibule doors leading to any of these
vehicles.
When in service
If you become aware that the public address system is not working
on a vehicle, you must:
• tell the train operators’ control at the first convenient opportunity
• carry out the instructions given
• if possible move the passengers to an unaffected vehicle and lock and label any defective vehicle out of use.
Demonstrate action taken when unit is reported as riding rough
Contact signaller and control
Demonstrate action when GSMR out of use
If the fixed radio equipment becomes defective on a train which is
in service, you must:
• tell the signaller at the first convenient opportunity • not move the train until instructed to do so
• carry out the instructions given.
The train can stay in service as long as one of the following applies.
An operative transportable, or portable radio has been provided in the cab to be used.
If an alternative radio system is not available, the train must not make any further movement unless you have given the signaller the number of an operative mobile telephone that you have in the cab.
Demonstrate action taken when speedo out of action
Reduce speed to ensure all restrictions are adhered too
Demonstrate action when taillight is out of action
Report the circumstances to the signaller immediately
• Arrange for a handlamp with a red aspect to be displayed at the rear of the train
• Report the circumstances to the train operator’s control at the first convenient opportunity
Just one Tail Light out with 2 built in - Report the circumstances to the train operator’s control at the first convenient opportunity
The train may proceed normally
Demonstrate action when unit has been vandalised
Coach out of use or full train, out of service at first available point
Demonstrate action when experiencing wheel flats
Driver to make judgement call and report to signaller
Demonstrate action when windscreen broken or wiper defective
If you have not got a clear view of the line ahead because the windscreen is broken or obscured, you must take appropriate action. This may include reducing speed and using the warning horn more frequently to make sure that the train, or anyone on or near the line, is not placed in any danger.
If the train cannot proceed safely, you must:
• stop the train immediately
• tell the signaller
• if necessary, ask for a competent person to assist you • not move the train until instructed to do so
• carry out the instructions given.
Demonstrate action when passenger windows are broken
Both panes - coach out of use, if cannot be achieved unit out of service
Outer pane only, must be removed before proceeding
Describe restrictions on door isolations
Must not have 2 doors same side of the unit isolated
1 door each side of the unit isolated
Door adjacent to the cab isolated