brake unit

Question 1

first half

Answer 1

seven step relay valve
variable load valve
restricted application magnet valve
hand release wire

Question 2

second half

Answer 2

restricted application limiting valve and ball check valve
dump valve
release ensuring valve
by pass check valve
triple valve

Question 3

how many amps for rheo braking step 7?

Answer 3

200

Question 4

brake blending and rheo switches to EP around how many kms/h

Answer 4

10

Question 5

which valve gives the extra 10% of brake after EP step 7?

Answer 5

the restricted application limiting valve and ball check valve

Question 6

EP steps

Answer 6

1&2 75
3 110
4 145
5 180
6 215
7 250
emergency / full service 275

Question 7

first three valves of the brake

Answer 7

release prevention valve
regulating valve
relay valve

Question 8

second three valves of the brake

Answer 8

charging valve
lock out magnet valve and ball check valve
emergency exhaust valve
(equalising reservoir)

Question 9

FEEC

Answer 9

foot pilot valve
emergency pilot valve
emergency control valve
control governor by pass push button

Question 10

flashing door close light

Answer 10

door system faults
control circuit breaker tripped in rear cab
marker lights
PLC circuit breaker in trailing car tripped
train sensing that it is uncoupled
auxiliary circuit breaker tripped in another cab
an open circuit in the train cable
second BIVICS is open

Question 11

PLC

Answer 11

drivers door indicator lights
door closing relay delay
door chimes
secondary release feature
foot pilot
door loop bypass

Question 12

where is the PLC located

Answer 12

above door 3 on all motors and trailers

Question 13

is the DTRS connected to the PEI?

Answer 13

no

Question 14

how can you answer a PEI call?

Answer 14

press the PTT button on the DDU microphone

Question 15

what do you see when you get a PEI

Answer 15

words passenger emergency

Question 16

how long can you have a loss of over head before the DDU times out

Answer 16

3 minutes and PEI calls are 90 seconds

Question 17

at what speed does the CCTV function?

Answer 17

8km/h

Question 18

fault errors on a DDU will have different numbers on the error message

Answer 18

you only have to book it once

Question 19

revenue what do you need that you don’t in empties?

Answer 19

DDU

Question 20

what power does the DDU need?

Answer 20

110 one panto one MA

Question 21

what are the steps for the master controller?

Answer 21

off
shunt
series
series parallel
weak fields

Question 22

what is special about position 2 series?

Answer 22

time notching- is set at about 20 seconds before it automatically pulls for more power and step up every 5 seconds (by removing resistors) you can speed this up by going to series and then back to shunt or stop it by going back to coast and then shunt to restart the 20 seconds

Question 23

line switch light will extinguish when the train is powering

Answer 23

will be on if the train is asking for power but not getting any

Question 24

what circuit breaker is the master controller connected too?

Answer 24

control circuit breaker (like the brake handle)

Question 25

what should you check in the yard before stabling the train in the end rear cab

Answer 25

that you are in clear

Question 26

what should you tell fleet once stabled

Answer 26

what road/yard
motor numbers

Question 27

what do you check in a stable?