Cab Equipment and Circuit Breakers Flashcards
Positions of a master selector switch
- reverse
- neutral
- forward
- Set speed
Neutral is used for? (3)
- stopped at a signal
- cab unattended
- any time a cab is to be deactivated
When will the over speed system apply emergency brakes?
Speed over 125km
What does set speed do? And when does the overspeed activate?
Limits the train to 6km and over speed activates at 8km
What are the 7 circuit breakers and can they be bypassed? CATSFED or FACES TD
- Cab manned - cannot bypass
- Train stable - cannot bypass
- Safety loop - cannot bypass
- Emy brake valves - cannot bypass
- Door control train line (doors open) - cannot bypass
- Friction brake monitoring - yes bypass
- Auto coupler in centre cab - yes bypass
What type of brake does emergency use?
Friction brake only
When does the holding brake automatically apply?
Speed below 0.2km or in coast
Holding brake cylinder pressure?
110kpa
Full service/B6 pressure?
189
Emy brake cylinder pressure?
280kpa
What happens when a DDA request button is pushed? (2)
- button flashes 5 times
- cctv will turn on when you press it
What speed does the over speed indicator lamp illuminate?
Over 119km
The auto door close inhibit overrides which doors?
Key in or out when you press it?
1 and 4
Key in
When does the uncouple button flash? And is it in all cabs?
Low main res pressure (below 850) in all cabs
Key switch on or off to stable the train?
Off
How often does the MAD button sound
30 sec
When would a critical fault light illuminate? (3)
- major failure of friction brakes
- both SIV failed
- wheel slip fault affecting the sanders
What does the traction system fault light tell you (2)
- The traction system on the local motor has a serious defect
- the train stable, HSCB or light control MCB has tripped
When you bypass the safety loop and trip cock, what button do you need to continue to press?
MAD button
Where are the MCBs and fault panel in a trailer car?
RH side door 2 at no 2 end
Does the cab speaker turn on automatically when a PEI is activated?
Yes
What does the compressor fault light tell you?
Air pressure has dropped below pressure switch setting and has not recovered to normal MR settings
Is Panto control MCB local or train lined?
Train lined
Is Panto motor MCB local or train lined?
Local
What circuit breakers are behind the fire extinguisher?
- GPO
- Trip
What does the trip cock device do?
Prevents the trip from lowering when cab is deactivated
The safety systems isolation fault light will illuminate when what has been operated? (3)
- door loop bypass
- safety loop bypass
- trip cock bypass
Safety equipment (6)
FAK
ATWS
ETCJC
Red and green flags
Fire extinguisher
Switch stick
When does the holding brake release?
- When enough traction power has been detected to accelerate the train
- in B1 - B6
The vigilance control system comprises of…? (5)
- task linking
- acknowledgement button
- audible buzzer
- fault indicator
- activation valve or relay
What does the general fault indicator flashing red mean?
There is a fault on the train
In centre cabs, what does it mean when the uncouple button is illuminated red?
The trains are coupled
When does the trip lower?
When the cab is activated
What does the electric brake inhibit button do?
Temporarily disables ED braking and enables EP
Which circuit breakers could cause a critical defect fault light to illuminate?
- friction brake monitoring in M and T
- SIV monitoring MCB in T car
What happens when the traction control unit MCB trips? And what fault lights?
- traction power for the local unit is not available
- reduced performance and maintenance fault in any cab
- Traction system fault in affected motor
Fault lights on T car fault panel? (10)
- Breaks bogie 1 & 2
- HVAC 1 & 2
- SIV 1&2
- brakes cut out bogie 1&2
- park brake bogie 1&2
Train lined fault lights? (6)
- safety loop
- critical defect
- maintence fault
- reduced performance
- door system
- compressor fault
