underfame a1

Question 1

what is a frequency generator and where are they?

Answer 1

monitors the rotation of the wheel, on wheels 1,3,5,7- feeds back info for wheel slip protection

Question 2

what and where is the speedo generator?

Answer 2

speedometer on axle box of wheel 8, not train lined

Question 3

which has the tread brake?

Answer 3

the westcode, older one
knorr is newer uses disc brakes like a car

Question 4

isolating cocks under the driver

Answer 4

red ec yellow techav main res to brake controller

Question 5

who may use a ripcord to uncouple?

Answer 5

maintenance staff only

Question 6

on the schafenberg couple which side is set up for electrical connections?

Answer 6

A side, B side is for non electrical

Question 7

which cock is on the B side of a schafenberg?

Answer 7

the B side is the main res isolating cock, the brake pipe isolating cock is on the A side

Question 8

where is the transition coupler?

Answer 8

beneath the van on the A side, needs to be inspected that it is help in place with padlock (5p)

Question 9

where is the pantograph storage res?

Answer 9

under the van area, closer to A side/outside than the equalising res, which is closer to the B side and the brakes

Question 10

what is the equalising res?

Answer 10

a component of the brake controller equipment and allows brake pipes to be charged, on the A side of the under frame but closer to the B side than the panto storage res

Question 11

where and what is the no.1 air suspension isolating cock?

Answer 11

controls main red to bogie 1, located between and above wheels 1 and 2, before the SPB isolating cock

Question 12

what is an air compressor

Answer 12

electric motor that supplies compressed air to the main red, operates on 1500vDC via motor alternators

Question 13

What is a control reservoir?

Answer 13

operates EP valves in the main equipment case, holds air for the control governor to brake or make the circuit that gives traction power depending on things like BP pressure

Question 14

wheel slip unit

Answer 14

check it’s on via the green light

Question 15

what and where is the compressor governor isolating cock

Answer 15

a pair of cocks is the left hand side one next to the control resvior out isolating cock- if the compressor governor isolating cock is turned the compressor governor thinks there is 0 compressors and keeps running

Question 16

what is the control res out isolating cock?

Answer 16

stops air to the EP valves in the main equipment case

Question 17

how do you manually release brake cylinder air to atmosphere?

Answer 17

there is a hand release wire under the B side drivers seat

Question 18

what are the three electrical cases

Answer 18

main equipment case
line breaker case
auxiliary equipment case

Question 19

what and where is the main isolating switch?

Answer 19

for the lone breakers and traction motors on the left hand side of the line breaker case, on the right hand side is the panto interlock and auxiliary isolate switch (interlocked switches, the aux can’t be isolated until the panto is down)

Question 20

what would happen if the train were to break at the semi permanent coupler? (motor to trailer)

Answer 20

brake pipe would rupture- emergency brakes

Question 21

what is the isolating cock on the b side of the coupler?

Answer 21

main res

Question 22

what are the cables where the trains are semi-permanently coupled?

Answer 22

fat one is the brake pipe, other one is main res, lower down is 1x 110v DC and 2x 415v AC cables and CCTV cable, the power cables are a 415, 110, 415 sandwich

Question 23

emergency lighting container

Answer 23

a battery, shows status by green light on the front knorr and circuit breaker on the side westcode- is a box on the B side

Question 24

where is the number 2 bogie air suspension isolating cock?

Answer 24

between wheels 5 and 6

Question 25

where is the number 2 bogie spring park brake isolating cock?

Answer 25

near wheel 6

Question 26

motor alternator

Answer 26

operates on 1500v DC and supplies 415v AC current for air con lighting circuits and traction cooling fan

Question 27

what do the 415v AC cables do?

Answer 27

there are 2 in each car and each powers ever second thing, saloon lights, head lights, air cons, and traction cooling fans

Question 28

what is the cock on the left hand B side of the main equipment case?

Answer 28

load compensation isolating cock (is obscure and shitty placed) the thing that controls the rheo braking in relation to passenger weight

Question 29

DOOR ISOLATING COCKS

Answer 29

next to the main equipment case and hidden by the air dryer. closest to outside is B, middle is A and farthest in is ‘door system’

Question 30

where is the air dryer system?

Answer 30

adjacent to the brake unit (b side), is a box that removes moisture and crap from the compressed air system

Question 31

brake unit left to right

Answer 31

seven step relay valve
variable load valve (lower)
restricted application magnet valve
hand release wire (lower)
restricted application limiting valve and ball check valve
release ensuring valve
by pass check valve (upper)
triple valve

Question 32

if your behind the brake unit on your left you have the

Answer 32

brake pipe to triple valve isolating cock (EP) and main res to seven step relay isolating cock

Question 33

what is the cock on the left of the unit facing it from the front behind the seven step relay?

Answer 33

control res IN isolating cock, stops main res air to control res

Question 34

which is the main res

Answer 34

toward 1 end of B side next to Aux res, revives stores and cools large volumes of air, is deeper in than aux res

Question 35

what is the aux res?

Answer 35

infront of the main res for air braking