Comeng Traction Flashcards
Spring Park Brakes Operate how?
- Spring to apply
- Main Res air to release
On every odd numbered wheel there is a…
Frequency Generator
Sends message to wheel slip unit to correct if wheel slip happens
What is the equalising reservoir used for?
It forms part of the Brake Controller equipment, and allows the brake pipe to be charged.
Air compressor supplies air to which reservoir?
Runs on 1500vDC
Main Res
A motor Altinator must be operating to allow air compressor to run
Control Reservoir supplies compressed air to?
- Electro-pneumatic valves in the main equipment case.
- Trip Latching Lever
How long does emergency lighting last for in a power outage?
2hrs
Motor Altinator runs on?
1500vDC
Motor Alternator outputs 110vDC and 415vAC
The 415vAC supplies what?
Also 240- 24v
- Saloon lights
- Headlights
- Air Conditioners
- Traction Cooling Fan
When operating the uncouple buttons what is achieved..
- Mechanical unlocking of the 2 scharfenberg couplers
- Electrical separation of train cable and closing of hinges covers
- BP an MR connections closed
The trip latching lever in the drivers cab uses compressed air supplied from?
Control res
Saloon door control buttons must be pressed for a minimum of how long?
2 secs
Air Conditioner fault Light
1.OFF
2.STEADY
3.FLASHING
- All A/C working
- One A/C failed in at least one carriage
- Two A/C failed in the one carriage
When Stabling a train, what position must the marker light switch be in?
AUTO position
Other positions, Centre cab OFF, Red, White
When reverser is in Neutral (once the train is staionary) how long until the train lined Spring Park Brakes will autoimatically apply?
60 sec
Spring PArk Brake Release Button
To release all park brakes, the reverser is placed into Forward, Off/Neutral or Reverse, and the green park brakes OFF butten is pressed for how long?
- Release 5 secs
- Apply 5 secs
- PLacing reverser to OFF automatically applies train lined park brakes
Saloon light on and off switch (Driver lower RH wall control panel) must be pressed for minimum of?
2 secs
Memory Aid Device
When active beeps at intervals of how long?
10secs
BVICS controls the flow of:
Allows the driver to control the braking functions of the train.
- MR air to the automatic air brake valves and brake pipe through the brake controller
- Electrical current to the EP and Rheo brake selector switches in the brake controller
- Electrical current to the low-pressure flag and lock-out magnet valve
- Electrical current to the door monitoring circuitd for the blue door closed lights
Programmable Logic Control
Components fitted to the PLC are:
- Door Chimes
- Secondary door Release Function
- door indicator lights
- Door delay closing relay
- Foot pilot valve
- Flashing door closed light relay
- Control governor bypass flashing light and button
- Door loop bypass
Brake Pipe operating Pressure?
550Kpa
Brake Pipe FULL SERVICE Reduction
380-410kpa
The BVICS controls the flow of
- MR air to the automatic air brake valves in the brake controller
- Electrical current to the EP and rheostatic brake selector switches in the brake controller
- Electrical current to the low-pressure flag and lockout magnet valve
- Electrical current to the door monitoring circuits for the blue saloon door closed lights
Flashing Door Closed Light
FDLC can be caused by…
- Door obstruction
- Door system faults
- Control Circuit breaker tripped in rear cab
- Rear motor Taillights turned off
- PLC Circuit breaker tripping in any trailing car
- If the train has been uncoupled and the coupler is still sensing it is coupled
- An Auxiliary circuit breaker tripped in another cab
- An open circuit in the train cable
- A second BVICS open
Items Connected to the PLC
- Driver Door Indicator Lights
- Door CLosing Delay Relay
- Door Chimes
- Secondary Release Feature
- Foot Pilot Valve
- Door Loop Bypass
triple D, FSD
TECHAV equipment and relevent faults that would cause them to fail?
Trip- missing or failing to reset
Emergency application valve- Unable to reset
Control Govenor- Not closing
Hand and foot pilot valve unable to reset
Anti-neutralisation device- activating above 8km
Vicers- Activation Valve failing to reset after key isolation
Name the secondary safety equipment?
Foot operated pilot valve
Emergency pilot valve
Control governor by-pass button
Emergency control govenor
What tasks need to be completed during a P/M prep?
- Visual inspections- All Motor Cars
- External inspections- All Cars
- Full Cab Inspections- All Motor Cars
- Continuity test
- Pantograph test
60mins
What M/L prep tasks need to be completed?
- Visual inspections- All Motor Cars
- External Inspections- All cars
- Full Cab Inspections- Leading Motor and trailing Motor
- Continuity Test
- Pantograph Test
37mins 6 car, 20 3 car
Full CAb inspection-
BP operating Pressure
550kpa
BP minimum reduction
50kpa
BP full service reduction
380-410kpa
EP Brake step 1 + 2
75
EP Brake step 7
250kpa
Emergency BC pressure
275kpa
Trip lowering BP pressure
Above 500kpa
Trip reset BP pressure
0kpa
MR operating pressure
585-725kpa
Control res minimum pressure
490
Control Governor Test BP pressure fall below
290kkpa
Control Governor opens
310-340kpa
Control governor closes
400-430kpa