Xtrap Revision Flashcards
When in position 1 of EMS what must drivers be aware of?
Holding brake is OFF
Train could roll if in coast
What would be the effect on the train if the Trip wasn’t set?
Safety Loop would be Open, EMY brakes applied
What light does not illuminate when you do a lamps test?
MAD button
What would a driver do if low voltage was found?
Check battery iso switch (do not touch)
What is the purpose of the Traction control Unit ?
It controls powering & ED braking
What energises the permanent low voltage line?
Batteries
What is the difference between prepared low voltage cab- operative and prepared low voltage?
Cab operative = keys in, everything functions
Prepared low voltage = in service retention mode
What settings are kept in service retention mode when the key is removed ?
Train remains prepared
Panto remains raised
Settings of cab in service are retained
MARKER LIGHTS
DOORS &
SALOON LIGHTS will retain same settings as prior to key removal
Can a driver reinstate isolated batteries ?
No
Call fleet
What happens if safety loop is de energised?
EMERGENCY brake will apply
What indications would a driver get of the Safety Loop was de-energised?
EMY brakes applied status light
Emergency brake cylinder pressure (210)
List 9 things that can open the safety loop?
MR below 580
BP below 300 (rescuing)
Trip
Hand/ foot
Auto vigilance
Vicers
Loss of 110vDC
MC to EMERGENCY
ESB
2 keys in at the same time
23Q1
23Q2
What is the safety loop rescue switch for?
To allow a trickle charge to the batteries from a rescuing xtrap
What indications would you get in the driver’s cab the DER had been pulled?
-FDCL
- DOOR EMERGENCY HANDLE ACTIVATED
(status light on)
- Flashing red ANS button
- DDU tone
- CCTV will display image of area
*Doors can freely open or close manually
* traction whilst in running
If there was an issue with the speed threshold, how do you override it?
Tacho bypass to bypass it
How do air compressors work together?
Both work when MR is below 650 until reading 750 kPa
Main Res charges the aux res for what purpose?
EP (friction brakes)
What are the driver’s responsibilities in regards to Aux panel for a mainline prep?
Check the leading and trailing panels
What Braking SYSTEMS do Xtrapolis trains have?
Service
Holding
Emergency
Spring Park Brakes
What types of braking are used for the service brake?
ED & EP
When does a holding brake apply & release?
Applies under 0.5 and releases as soon as you pull for power
When is the EMY brake activated?
EMY pos of MC handle
Safety Loop opening
How long do you wait after pressing the stable button for pantos to lower?
Check voltage presence status indicator
What can cause a FDCL?
- saloon door failing to prove closed & locked
- any fault within the door system & associated train cable connections
- coupler fault after uncoupling
- a DER being activated