Underframe Equipment Flashcards
(43 cards)
Generally …
What equipment do DMp and Mp cars have?
Pantographs
High Voltage equipment
Traction equipment
Generally…
What equipment do Tc and DT cars have?
Auxiliary Power Supply
Batteries
Air supply equipment
Where is Main Reservoir located?
B side of every car
Main Res pipe is continuous throughout train
What do the Surge Reservoirs do?
Supply compressed air to air bag suspension on every bogie (x2 per bogie)
What does the Brake Supply reservoir do?
Supplies compressed air to EP valves to charge the BCs on every car
No.1 end
What is the difference between Motor bogies and Trailer bogies?
Motor bogies have traction motors on each axle
What equipment do bogies have on them? (5)
Speed sensors
Primary and secondary suspension
Tread Scrubber (Tc Only)
1 Park Brake per axle (DMp, Mp and DT)
Park Brake Manual releases (DMp, Mp and DT)
Where is the Primary suspension?
Between bogie frame and axle
What does the primary suspension consist of?
rubber laminated springs
Where is the secondary suspension?
Between bogie frame and car body
What does the secondary suspension consist of?
Two air bags on each bogie
What do the air suspension ICs do?
Isolate the surge reservoirs for one bogie
Both bogies must be isolated
Where are the Sanders?
A and B side
Tc and DMp - No. 2 end only
Mp and DT - both ends
When do the sanders operate?
Automatically when BCU senses wheel slip
During EP braking
How is the sanding system tested?
Automatically by TMS
What kind of coupler does a HCMT have?
Semi-automatic Scharfenberg Coupler
On cab ends of train
What kind of coupling can a HCMT train do?
They can tow mechanically and pneumatically
How do you open the coupler cover?
unlock the locking mechanism
raise the cover
lock it in the open position
What ICs are under the Coupler Cover?
Uncouple Device IC
Towing Unit IC
BP End Cock
MR End Cock
Horn IC
Where are the BCM located?
A side of every car
What is inside the BCM of EVERY car and what does it do?
5 ICs and BCU
BCU Controls the application and release of EP friction braking.
Controls air into the brake cylinders
What are the 5 ICs in BCM?
- Brake Supply IC
- BC Bogie 2 IC
- BC Bogie 1 IC
- Tread Scrubber IC (Tc only)
- Park Brake IC (not Tc)
- Sanding Equipment IC
Tc - Trailer Cab
What does the Towing Unit do?
Exam
Allows HCMT brake control to interface with other rolling stock via traditional BP connections during rescuing procedures
Brake Pipe!!!
Tc - Trailer Cab
What does the transition coupler do?
Allows for connection to a locomotive for rescue purposes
