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Traction > Xtrap Revision > Flashcards

Xtrap Revision Flashcards

1
Q

When in position 1 of EMS what must drivers be aware of?

A

Holding brake is OFF
Train could roll if in coast

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2
Q

What would be the effect on the train if the Trip wasn’t set?

A

Safety Loop would be Open, EMY brakes applied

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3
Q

What light does not illuminate when you do a lamps test?

A

MAD button

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4
Q

What would a driver do if low voltage was found?

A

Check battery iso switch (do not touch)

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5
Q

What is the purpose of the Traction control Unit ?

A

It controls powering & ED braking

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6
Q

What energises the permanent low voltage line?

A

Batteries

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7
Q

What is the difference between prepared low voltage cab- operative and prepared low voltage?

A

Cab operative = keys in, everything functions

Prepared low voltage = in service retention mode

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8
Q

What settings are kept in service retention mode when the key is removed ?

A

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

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9
Q

Can a driver reinstate isolated batteries ?

A

No
Call fleet

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10
Q

What happens if safety loop is de energised?

A

EMERGENCY brake will apply

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11
Q

What indications would a driver get of the Safety Loop was de-energised?

A

EMY brakes applied status light
Emergency brake cylinder pressure (210)

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12
Q

List 9 things that can open the safety loop?

A

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

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13
Q

What is the safety loop rescue switch for?

A

To allow a trickle charge to the batteries from a rescuing xtrap

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14
Q

What indications would you get in the driver’s cab the DER had been pulled?

A

-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

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15
Q

If there was an issue with the speed threshold, how do you override it?

A

Tacho bypass to bypass it

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16
Q

How do air compressors work together?

A

Both work when MR is below 650 until reading 750 kPa

17
Q

Main Res charges the aux res for what purpose?

A

EP (friction brakes)

18
Q

What are the driver’s responsibilities in regards to Aux panel for a mainline prep?

A

Check the leading and trailing panels

19
Q

What Braking SYSTEMS do Xtrapolis trains have?

A

Service
Holding
Emergency
Spring Park Brakes

20
Q

What types of braking are used for the service brake?

A

ED & EP

21
Q

When does a holding brake apply & release?

A

Applies under 0.5 and releases as soon as you pull for power

22
Q

When is the EMY brake activated?

A

EMY pos of MC handle
Safety Loop opening

23
Q

How long do you wait after pressing the stable button for pantos to lower?

A

Check voltage presence status indicator

24
Q

What can cause a FDCL?

A
  • 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
25
Q

Can a train get traction once it has come to a stand with a FDCL?

A

No

it must be rectified or the door loop bypass key switch must be isolated

26
Q

If a DER has been activated due to a door fault what must a driver do?

A

Isolate the door once closed, and report according to the FMP

If it was due to passenger pulling it, we reset the DER by turning the lug horizontally using the tri key

27
Q

When pantos lower buttons have been pushed in how long do we wait for them to lower?

A

10 seconds

28
Q

When we press the stable button, how long must we wait before removing the controller key?

A

5 seconds

29
Q

Which cab are functionality tests started from?

A

Trailing motor

30
Q

From which cab do we start panto test?

A

Trailing motor

31
Q

What is a Modified full cab Inspection and when is it required?

A

Only required on a Pre-movement/ Revenue prep.

Only required to check the FAULT & Status panel & do a lamps & a whistle test instead of full cab inspection.

32
Q

What will occur when a DER is activated?

A

-The Doors Close (Blue) will flash
- the door can be manually opened or closed
- traction power will still be available while in running until train is stopped
- CCTV will display an image of that area
The ANSW RED button on drivers console will flash
- the DOOR EMY HANDLE ACTIVATED status light will illuminate

33
Q

When is a Modified Cab Inspection required?

A

Only for Pre-movement/ Revenue preps

34
Q

What are the Modified full cab inspections tests that are required on a pre - movement/ revenue prep?

A

Brake
Hand / foot Pilot valves
ESB
Safety Loop
Emergency Auto-Vigilance
Trip Test - only if entering the Mainline

(BEES Have Teeth)
(No VICERS or Traction test)

35
Q

What must we remembered to do before entering the trailing cab before stabling it?

A

We are IN CLEAR of any adjoining roads or sidings

Red marker lights

No obvious damage to rear

36
Q

How do we lower pantos during stabling?

A

Insert key
Check EMY pressure & EMY Brake app indicator light is on
Press STABLE
check High Voltage indicator light extinguish
Once 1 or more Pant light 💡 on WAIT 5 sec & THEN remove key
Check pantos down
Exit B side
Contact fleet (siding location, siding no. Motor no.s)
Submit any TMMs

37
Q

How long do tail lights and EMY lights remain on after stabling?

A

15 mins on all cars

Traction (32 decks)

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