Xtrapolis Faults - Rectification Flashcards
When overhead power is lost, is air conditioning and ventilation capability available?
No
With loss of overhead power, what should be turned off to conserve power?
Reverser to neutral
Master controller key to off
Headlights off
If during the day cab lights to off abs emergency lighting to off
Ensure step lights are off by closing cab doors
When practical, what should be stated on the PA during loss of overhead?
Duration of delay
Transfers to assisting trains
Detraining at stations
Any other arrangements
What would Major and minor 2nd level fault indicate?
MCB has tripped in the motor or trailer cars
What would a minor fault indicate?
An MCB that the driver cannot access
Where are the trailer car MCBs located?
Compartment to the left of door 2
Name the circuit breakers in the trailer car?
Tachy Unit
BCU
Panto 1&2
Aux inverter 1&2
Where is the EBOX mcbs located and can they be accessed by a driver?
Located A side of both M and T cars and they cannot be accessed by a driver
How many times can faults be reset until the defect cannot be rectified unless trying to clear the main line after being totally disabled?
3 times
If drivers cannot get in touch with TC for a train stable, who is the next contact?
Principal drivers
How long will marker lights and saloon lights remain illuminated during a train stable?
15 minutes
When stabling what lights need to extinguish and illuminate before the key is removed
High voltage extinguish
1 or more panto illuminates
What safety equipment fails to work with a bypassed safety loop?
Emergency application with MC ESB Hand and foot pilot valve Auto vigilance bypass Trip Brake pipe pressure switch Main res pressure switch
How do you rectify another cab active fault?
Cab to cab
Check for cleaners keys and drivers keys in other cabs
Put key in each cab and try to identify faulty cab and turning the key on and off to reset the other cab operative alarm
Train stable
If the other cab active is found, where is the driver to drive from?
The faulty active cab with a CE in the front utilising the ESB
What indication would a driver get if a panto fails to make contact with overhead?
High voltage presence light fails to illuminate after 30 seconds
If there is no voltage what is the drivers duties?
Check the battery box to see if it’s isolated
If it is book it with TC
If not isolated declare train disabled
If under 90 volts on the voltage meter for train start up, what is the procedure?
Declare train disabled
If pantos fail to raise and driver has over 90 volts what are the steps?
Check the panto latching buttons in the drivers cab
Check pantograph command in circuit breaker panel
Attempt to raise from another car
If pantos fail to raise from another car, what must a driver inspect?
Trailer car and check the 3 way switch is in the auto position
Inspect panto 1 and 2 cb are set
Raise pantos manually only under the instruction of TC
What three positions does the 3 way pantograph switch have?
Manually raise
Automatic
Manually lower and isolate
Where is the pantograph 3 way switch located?
To the right of door 4 in the trailer car
After manually raising the pantograph what must a driver do to ensure it stays up and responds to commands from the lead cab?
Turn the switch back to automatic
When raising Pantographs, what direction raises and lowers the pantograph?
Clockwise to raise
Anti clockwise to lower
When isolating a pantograph, what is the preferred way to do this?
Train stable
Confirm panto is down
Turn the 3 way switch to manually lowered and isolated
Activate cab to ensure the panto is down
When operating with a panto down, what could be the consequences?
Panto isn’t feeding power to the SIVS and battery charger meaning that unit is running off battery power
When coasting under a tramway square, after the pantograph test, what is the extra step for the procedure and why?
Emergency train set switch to brake 1, online holding brake inhibit
This is to ensure the holding brake does not affect the train coasting under the hazard
If driver has failed to clear obstruction, what type of trains can attach from the rear to push the driver through the obstruction?
Xtrapolis only
What direction must another type of train come to the assistance of the Xtrapolis stuck under an obstruction or tramway square?
From the advance (very long winded, weird question)
How would a driver bypass a defective hand or foot pilot valve?
Vigilance bypass switch, utilising the auto vigilance button every 40 seconds (30 seconds with a 10 second flashing warning)
When bypassing vigilance devices, what must also be isolated?
VICERS
What circumstances must the VICERS be isolated?
Safety loop bypass
Fault indicator stays illuminated
Auto vigilance is bypassed
Abnormal operation of vicers
How long does the shutdown sequence take for the VICERS during loss of overhead?
2 minutes
If an emergency brake is not releasing, what must a driver look for in local cab?
Check 110v (cab fluro) Trip lowered and set MC not in emergency Hand and foot pilot set Has vicers activated Check emergency train set mode is in normal position (2) Main res below 580kpa Another cab active CB 23q1 23q2
If an emergency brake is not releasing, what must a driver look for in trailing cabs?
ESBs
Ensure trip is raised
If emergency brakes won’t release after everything has been checked, what may a driver have to do?
Train stable and if that fails
Bypass the safety loop
What would a driver use as an emergency brake when bypassing safety loop?
Releasing the turret switch for it to spring back and open safety loop
What 4 positions are on the door isolating switch?
Motor release
Motor isolate
Normal
Motor lock and close
For a jammed door, what position would the door motor isolate be placed?
Motor release, freeing the door to be moved
How would a driver secure a defective door?
Placing door motor isolating switch to motor lock close, put stickers on the door
Submit tmm
What indications in the lead cab would a driver get when a DER is pulled?
FBDC light
DER handle activated light
Flashing red answ button
DDU emits sounds
What is the drivers responsibilities to reset a DER and how?
Reduce your speed
Make a PA instructing people to stand clear of doors
TEC call
Identify door
FCU
Use tri key anti clockwise to secure door
Book the seal broken
If no voltage is showing on the voltmeter, what could be wrong?
Defective step light
Batteries flat
Isolated batteries
Fuse blown or missing in the battery box
True or false, battery charges are confined to 3 car units and cannot be charged by an attaching car unit?
True
What does one or more traction eq fault light indicate?
A traction motor has isolated itself somewhere along the train
How would a driver verify the motors of the faulty traction equipment?
Traction Fault Light
How would a driver locate and isolate a 1 or more traction eq fault light?
Activate each cab and locate both traction system and 1 or more traction eq fault lights
Place the traction isolate switch to isolate
How would a driver confirm only 1 speed probe has failed on a train?
Along with a speedometer fault light, both the Speedometer and door release operates
If speedometer fails and doors won’t open, what needs to be done?
Tachometer bypass switch
If the tachometer fails on both units, what equipment will be affected?
Doors won’t release Uncouple won’t operate Trip can’t be reset when activated No Speedo Brake pipe won recharge after emergency application during rescue
At what speed will the train shudder too with a defective speed probe?
3km/h
If a SIV fails due to a circuit breaker, what fault lights will illuminate?
Aux
Major or major 2nd level fault light
If a SIV fails, does the working SIV take over for the battery charger?
Yep
What can be the effect of one siv taking over the battery charger and for how long?
the battery charger fault light may illuminates for 2 minutes
If both SIVS fail, what do we lose?
Battery charger
Air compressors
Traction cooling fans
HVACS
What is the maximum time batteries will power a train when 2 SIVS fail?
1 hour
How would a driver identify an isolated bogie or defective bogie sensor?
LED indicators on each car with green meaning brakes are not applied
Check the cocks
If a bogie is found to be Isolated during a prep what is the drivers duty?
Ascertain the reason why via train control
If no reason recorded reinstate
If bogie has been identified as isolated via fault light but is deemed to not be isolated, what is the fault?
Bogie sensor
How does a driver rectify sticking brakes?
Isolate affected bogie
What indications would be given for sticking brakes while in motion?
Smoke
Retardation
1 or more brakes applied fault light
Wheel slide fault light
How can a driver clear a service brake fault light?
MC to full service
Operate the emergency train set mode to number 1 inhibit holding brake
Place MC to coast and immediately back to full service
Return emergency train set mode back ton2
When stabling to rectify an inoperative PA, how long must the train be stabled and how long is the additional wait?
2 minutes for the stable
4 minutes after start up
What 3 trip cock faults are possible?
Trip fails to reset
Trip fails to lower
Trip fails to raise
If the trip fails to lower, what isolating cock needs to be checked?
Trip cock device, if it is closed open it
If the trip fails to lower and the relevant isolating cock is not closed, what is the procedure?
Raise the trip and utilise the emergency vigilance bypass button
If the trip fails to raise in the lead car what is the procedure?
Try to raise again
If that fails continue normal operation
Report as per fmp
If the trip fails to raise in the trailing cab, what is the procedure?
Isolate trip cock device in aux panel
Secure the trip in the raised position (tie it)
Book it
If a trip fails to reset, what could be the issue?
Speed probe fault light indicating a failed tachometer train lined
How would a trip be reset if unable from the cab?
Press the plunger on top of the trip
If the trip fails to reset and the cock is open, what is the procedure?
Operate the secondary circuit via auto vigilance button
Book it
If the trip fails to reset and the cock is closed, what is the procedure?
Open it and try reset it
If the whistle fails to sound, what isolating cocks need to be checked?
VICERS isolating cock high and low tone
Whistle isolating cock in aux panel
Where are the whistle isolating cocks located?
A side equipment cabinet
Pneumatic panel
If main res leak is detected under centre cabs and it is unable to be plugged, what is the procedure?
Isolate end cocks
Drain auxiliary res
Isolate spring park brakes
Operate as per 2 isolated bogies
If main res leak is detected under any other car and it is unable to be plugged, what is the procedure?
Declare train disabled
If a lead motor or trailer has a main res leak, what direction would of rescue come from?
The advance
If a trailingnmotor or trailer has a main res leak, what direction would of rescue come from?
From the rear
What pressure will both compressors operate?
650kpa
How long does the auxiliary light stay on after start up?
20 seconds
At what pressure does the low main res fault light come on?
650kpa
