HCMT - Traction Flashcards
Where is compressed air distributed too?
Main Res
Pantographs
Suspension
EP brakes
trip
Sanders
Coupler
Horn
Driver and OJT seats
What is in the air supply unit?
Air compressor
Air dryers
Filters
What’s different about the compressors on the HCMT?
They change what compressor is on each day to reduce wear and tear
What is the main purpose of the auxillary res?
To raise pantographs when no main res pressure is present
At what pressure does the safety valve go off on a HCMT?
1050kpa
How do the pantographs raise on a HCMT?
With either over 700kpa in main res
Auxillary res powered by a battery during train start up
Where are the pantograph isolating cocks on a HCMT?
Underframe and saloon
How do you isolate a trip on the HCMT?
Trip isolating cock on B side on TC car
Wrap the trip around and click it in place
Trip bypass switch
Where is the horn isolating cock?
Under the coupler cover - b side
What isolating cocks are in the brake module?
Brake supply
Brake cylinder 2 end
Brake cylinder 1 end
Tread scrubber
Park brake
Sanders
What is full service pressure?
250kpa - 380kpa
What is holding brake pressure?
140kpa - 240kpa
Where are park brakes located?
Every car except TC cars
What does ASDC stand for?
Announce
Surveillance
Door
Cover
What is emergency pressure?
280kpa - 460kpa
