HCMT Flashcards
What Level alert requires immediate action from the driver?
Level One
Which Bypass switches when operated would cause the Safety System Bypass Fault Light to illuminate?
Traction Interlock
Zero Speed
Trip
Drivers Safety Device
… not get home or MR switch
How long do you have to acknowledge the Safety System button?
30 seconds
How long do you turn the switch to stable to ‘Hard Stable’?
7 seconds
What is the purpose of the Traction Interlock Bypass switch?
Allows you to obtain traction power if there is a fault on the door status loop
… door loop bypass …
Which Bypass would the driver operate in the event of a defective hand or foot pilot valve?
Driver Safety Device
The MR Pressure switch is to be operated when a HCMT is coupled to what train type?
Comeng
Trip Bypass switch must be operated if the Trip has been isolated?
True
In the event of a Pulse Width Module failure which bypass switch/button would the driver be required to operate?
Get Home Mode
Which of the following bypass switches would require a driver to detrain passengers?
MR Pressure Switch
Traction Interlock
Zero Speed
Trip
Driver Safety Device
…. not HCS, or get home
What are the main electrical faults that can occur on a HCMT?
CBs tripping
Traction Faults
Auxiliary Faults
… not MR faults
Which system monitors the status and position of CBs on a HCMT?
eTIS
What is the maximum number of times you can reset a CB?
Twice
Which CBs if tripped and can’t be reset will cause the train to be declared disabled?
Single point failure CBs
Brake Control Supply
Emergency Brake Loop Power Supply
Traction Control
Cab Activation
If a driver is presented with a Traction and/or Auxiliary Fault which button would the driver press to attempt to rectify?
TCU/ACU Reset
What is the most likely cause of the Traction and Auxiliary Power systems failing simultaneously
HSCB Tripped
Most electrical systems will self isolate if a fault is detected?
True
When on mainline what conditions must be met prior to performing a train stable for fault rectification?
Permission from TC
At a platform
Protection of home signals
Not near LVLX
What does a red door on pictogram indicate?
Door failed (defective)
What does a yellow door on pictogram indicate?
Isolated
How many times will a door attempt to close?
4
Which of the following door scenarios will prevent driver from being able to obtain traction?
Obstructed door
Trailing cab door open
External saloon DER
… not bulkhead door
If a bulkhead door cannot be closed the driver must operate the Traction Interlock Bypass?
False
How long is a DER in stage 1 for?
20 seconds
How long does the DER Inhibit work for?
120 seconds
What are the drivers duties when resetting a DER?
Check DER handle clear of obstruction
Remove obstruction if required
Return DER handle to upright position and close flap
Yes … all of the above
What are drivers duties when isolating a defective door?
Inset Tri-key into mechanical isolation port
Rotate key 90 degrees clockwise
Observe door indication lamp illuminated
Push saloon door open button to confirm door is manually locked
Apply door not in use stickers
… don’t operate traction interlock bypass
If an external DER has been operated is traction still available?
No
If an external DER has been pulled on the side of the train you can’t access do you request track access or wait until next platform where you can access it?
Wait until next platform when you can get to that side
For how long do you need to press Cab EAD button?
10 seconds
How long does EAD Inhibit work for?
5 minutes
If you get a substandard beacon read any doors that are not identified as being on the platform will remain gray on the train pictogram and will be inhibited from opening?
True
What is the ASDC override procedure
PA - short delay before doors released
SDU - observe cameras to ensure leading and rear cars aligned with platform
Door - open cab door on platform wide to confirm platform available, close cab door
Button - press appropriate side ASDC Override button on correct side and select which cars to release
Press door release for platform side
Report fault to Metrol
Which IC should be used to pneumatically isolate a pantograph
Saloon IC - DMp car, A side, No. 1
What are the drivers duties if presented with a brake disc over temperature warning
Operate at a low speed
Submit TMM
Physical sign of brake faults include
Smoke
Unexpected retardation of train
Smell
Passenger report
When safe to do so what are drivers duties when presented with dragging brake bogie car TMS Alert
Main Status Screen
MCH to COAST
MCH to Max Brake
MCH to COAST
Repeat fanning
Observe BC pressure below 20 to ensure brake has released
… don’t go to emergency, don’t declare train disabled
If a sticking dragging brake does not release it must be isolated?
True
If an individual bogie must be isolated which isolating cock would the driver operate?
Outside ICs - turn brake cylinder bogie IC.
(brake cylinder ... not brake supply)…. ... Inside IC - isolates both bogies
There is no requirement to isolate park brakes when isolating the EP Friction brakes?
False
What indications would a driver get if there was a leak or rupture of one or more air bags?
Air bags fault light
TMS Alert
Where are air suspension isolating cocks located?
B2
Maximum speed with deflated air suspension?
40kmh
If a driver is required to isolate air suspension would you have to isolate bogie 1 and 2?
Yes
If Status screen indicates large variance between MR pressure at lead vs trailing cab what does it indicate?
MR leak towards lower end
If there is a MR failure on a TC car is the car unbraked?
Yes
If there is a MR rupture on a Tc car which of the following equipment will be lost?
Trip
Emergency Brake
Holding Brake
Air Suspension
Horn
Driver and OJT seats
Sanders
… not pantographs or park brakes
Where are MR through cocks located?
B side, 1&2 end of every car
In the event of a MR fault on a Tc which of the following equipment must be isolated?
MR
Trip
Compressor
… no pantograph
In the event of MR fault on a Dmp which of the following equipment must be isolated?
MR
Park Brake
… No trip, compressor
In the event of a MR fault on a Dmp car may the pantograph remain raised?
Yes - due to auxiliary compressor
In the event of MR failure on a Mp car which of the following equipment is lost?
Friction brakes
Park Brakes
Pantograph
Air suspension
Sanders
… no trip, compressors
In the event of a MR failure on a DT car which of the following equipment would be lost?
Friction Brake
Park Brake
Air Suspension
Sanders
… no panto, compressor
There is no electrical connection on the HCMT semi-automatic coupler
True
Where is the transition coupler located?
Tc Car - A side
Where is the Uncouple button located?
OJT Panel
Is HCMT fitted with a continuous Brake Pipe?
No
What are the functions of the Towing Unit?
Generates and interprets BP signal and EP demand during train rescue
Provides the means for the HCMT brake control to interface with other rolling stock via a traditional brake pipe
Irrespective of recovery mode that the HCMT is in a drop in BP pressure below what value will initiate an emergency brake application?
300
When conducting recovery procedures do we need to isolate the HCS equipment?
Yes
What is position 2 on the recovery switch?
Pulling
What is position 3 on the recovery switch?
Pulled
When the recovery switch is operated the HCMT immediately matches the MR pressure of the attached train?
False - not immediately
What brake must be used on a Comeng train during a non-electrical rescue?
Air Brake
If both bogies isolated in Tc car is train disabled
Yes
If external DER has been activated, closing doors will automatically reset.
Yes
