Pnuematics, Suspension, Braking Flashcards
The compressed air system is comprised of what? (9)
Two air comps
Compressor gov
Comp gov iso cock
Air dryers
MR
MR pipes
Aux res
Aux pneumatic panel
BP during train rescue
What do the air compressors do if compressed air falls below 650?
Both compressors will turn on
What do the air compressors do when MR reaches 750-900?
One will turn off and one will maintain that pressure range
When you turn the compressor gov iso cock what will the compressor do?
It will remain in the state it was in when you turn the iso cock
What does the MR supply air to? (4)
Braking systems
Trip apparatus
Horn
Aux panel
What does the aux res do?
Store MR air to be used by the pneumatic braking system (friction brakes)
What and where is the primary suspension?
Rubber mounted springs between the axle box and bogie
What and where is the secondary suspension?
Between bogie and car body
Rubber mounted coil spring
Vertical and lateral damper
What braking systems are used?
Service
Holding
Emy
SPB
The service brake is a blending of what brakes?
ED and EP friction brakes
What brakes are used on a Mc? (2)
ED
EP (tread and disc)
What brakes are equipped on a Tp?
EP only (tread)
What speed does the ED brake work at?
Above 10km and drops out at 5km
When does the holding brake apply?
Speed below 0.5km
When do you do a low speed running brake test? And what speed?
Docking out of a siding on a previously prepared train 5km
