Brake pipe operating pressure
550 kPa
Brake pipe minimum reduction
50
Brake pipe full service reduction
380-410
EP brake cylinder step 1 - 7
Difference in each step?
Step 1?
Step 7?
75-250
35 kPa difference per each step
Auto air emergency brake cylinder pressure
275
What pressure must be brake pipe be above to lower the trip
500
When resetting the trip at what pressure should the brake pipe be at?
0
At what pressure does the control governor open?
310 - 340
At what pressure range does the control governor close?
400 - 430
Auto air brake test brake pressure between
390 - 410
What is the minimum main res pressure in order to raise a Panto?
500
What’s the holding pressure on a Knorr?
0 (there is none)
What’s the holding pressure on a West code?
35
In which position must the lead brake handle be during a continuity test
Step 7
What does the red EC cock do?
Isolates primary safety equipment if defective
T - trip
E - Emergency application Valve
C - Control Governor
H - and pilot valve
A - anti neutralisation device
V - Vicers Activation Valve
What must be done when driving with the Red Ec cock turned?
- FP must be used
- CG bypass button is activated
- VICERS must be isolated
What does the PLC provide power to?
- door indicator lights
- Door closing relay
- Door chimes
- Door loop bypass
- foot pilot valve
- control governor bypass button
- secondary release feature
Where is the programable logic control located? (PLC)
Above door 3
What indicates that we have a tripped PLC
- no door indication at all?
- components of the door system will fall to operate, leaving passengers without any safety features
- traction power will not be available until circuit breaker is reset or door loop bypass is activated
- Flashing door close light constantly flashing if tripped in any trailing car (2 -6) - NB - this point isn’t listed
What can cause the PLC to trip?
- if the train is uncoupled and the coupler is sensing it is coupled
- Second BVICS open
- AUX CB has tripped
- train cable issue
What is the Vicers timing?
Needs to be pressed within five seconds of buzzer sounding
Cannot be pushed for more than five seconds
Inactive when train is stopped
- 1-60km/h : 45 sec
- 61-95km/h : 35 sec
- 96 - 110 km/h : 30 sec
- > 110 km/ h : 25 sec
How do we rectify sticking brakes in running
- ensure correct air pressures *
- ensure no air flow can be heatd from charging valve*
Trip EP CB
Make a full service brake application and release
(If it doesn’t work try when stationary procedure)
(Me personally I just put it into EMY then release)
How do we rectify sticking brakes when stationary?
- check correct air pressures correct *
Perform rapid succession of EP break from release to step 7 and back to release
Attempt to move the train using minimum power
If retardation of the train is still present, stop the train at a location that will enable further finding
TEC call to TC
PA
RTA if required
Full cab unattended proc.
Inspect brakes and wheels for signs of excessive heat/ smoke
Determine if it is a park brake wheel or the entire bogey
If Bogie isolate bogeys by turning the relevant bogey IC
Confirm all brakes have released on the affected bogie (knorr calipers can be moved if brakes are released)
If the bogey IC continues to vent and all the brake cylinders have not released isolate the SPB IC on the affected bogey or bogies and manually release all SPBs on the affected bogie bogies
Book fault
FWN both ends
Run as per bogey’s isolated procedure
How do we run a train with bogies isolated on a comeng ?
Speed restrictions of:
10 km/h below permitted speed when its over 60 km an hour
50-80% braking available - extreme caution
Less than 50% braking available - disabled
FWN & stickers both ends above speedo
