Underframe Revision Questions Flashcards
What is the Purpose of the Red EC isolating cock?
To isolate the primary safety equipment in the lead cab
• Trip
• Emergency Application Valve
• Control Governor
• Hand Pilot Valve
• Anti-Neutralisation device
• VICERS Activation Valve
What is the purpose of the yellow TECHAV cock?
Isolate the Saftey apparatus on the trailing motor
What is the purpose of the MR to brake controller isolate cock?
When OPEN, allows main res air to flow to the brake controller for operation of the automatic air brake
What is the purpose of the frequency generator?
Located on every odd numbered wheel
Sends message to the spin slide equipment to monitor and correct wheel slip
Where is the speedometer generator located?
Number 8 wheel of a motor car
Which type of comeng uses Tread/ Disc brake?
Westcode tread
Knorr Disc
The Scharfenberg coupler enables what kind of connection?
Mechanical
Electrical
Pneumatic
How do you uncouple 2 units ?
Via two push buttons located in the drivers cab
What parts of the coupler must you check before coupling?
- The painted indicator
- Selection lever for non electric coupling
- Main res and brake pipe isolating cocks
What is the transition coupler for?
To connect our trains to locomotives
We don’t fit these
What are the two small reservoirs under the drivers cab?
Closest to the drivers side is the Equalising reservoir
On the A side is the Panto storage reservoir
On a westcode, what would be the first isolating cock on A side of the motor?
Number 1 air suspension isolating cock
On Knorr what is the first cock on A side?
Number 1 spring park brake isolating cock
What does the air compressor do?
Supplies compressed air to the main reservoir, this operates on 1500v DC
Motor alternator must be running
What does the control res do?
Supplies compressed air to operate the EP vavles in the main equipment case
It’s also supplies compressed air to the Trip latching lever