Pneumatic Faults

Question 1

What MR pressure will ‘Low Pressure MR’ fault light illuminate?

Answer 1

When it drops below 650

Question 2

What MR pressure will Safety Loop open?

Answer 2

When it drops below 580

Question 3

What do yo do if MR pressure is between 580-750?

Answer 3

Book and monitor

Question 4

What MR pressure does park brake automatically apply?

Answer 4

300

Question 5

What do you do when MR pressure drops below 580?

Answer 5

Safety Loop opens …

Confirm High Voltage Presence light illuminated

TEC call

Track access if required, cab unattended

Inspect/listen for MR air leaks and operation of compressors

Question 6

What do you do when inspecting MR low pressure and compressors are not running?

Answer 6

Train STABLE

If compressors don’t re-start train DISABLED

Question 7

What do yo do if there is a MR leak under CENTRE MOTORS?

Answer 7

Isolate MR end cocks

Drain Aux. Res.

Manually release SPBs

Book as per FMP

Question 8

What do you do if there is a MR leak under any other car?

Answer 8

Attempt to plug leak???

Declare train DISABLED

Train to be rescued from advance if fault on Leading motor or trailer

Train to be rescued from rear if fault is on Trailing motor or trailer

Question 9

What faults can occur with Trip?

Answer 9

Fails to lower

Fails to raise

Fails to reset

Question 10

What do you do if Trip fails to lower?

Answer 10

TEC

Track access

Modified cab unattended

Check Trip Isolating Cock in Aux. Pneumatic Panel - if closed, open it

• if Open - place Trip Cock switch to raised position and operate on secondary circuit and press Auto-Vigilance Bypass button as required

Question 11

What do you do if Trip fails to Raise?

Answer 11

When changing ends and Trip fails to raise in rear cab

Track access

modified cab unattended

Isolate Trip Cock Active IC in Aux. Pneumatic Panel

Secure Trip in raised position by any means necessary

Question 12

What do you do if Trip fails to Reset?

Answer 12

Ensure no other fault lights illuminated (if they are act accordingly)

Track Access

Modified Cab unattended

Manually Reset Trip - hit button with stick
- if sets continue normal operation

• if not set check Trip Cock IC in Aux. Pneumatic panel
  
  • If closed, open it and attempt to reset
  • If open place Trip switch to raised position, operate one secondary circuit and press Auto vigilance Bypass button as required

Question 13

What do you do if Whistle doesn’t sound?

Answer 13

Operate whistle lever several times

Inspect both Low and High Tone ICs in A side equipment cabinet

If isolated place to normal

If normal
- Track access
- modified cab unattended
- inspect whistle IC in Aux. Pneumatic Panel

If not rectified run as per requirements for failed whistle

Question 14

What do yo do if whistle sounds continuously?

Answer 14

Operate lever several times

If LOW tone continuous isolate LOW IC

If HIGH tone continuous isolate HIGH IC

If whistle continues to sound isolate Whistle IC in Aux. Pneumatic Panel

Question 15

What are operational requirements for running with failed whistle?

Answer 15

Re-release doors for passengers

Travel at Reduced speed Cautiously

Do not exceed 15kmh through yards, stations or near track workers

Flash high beams when approaching LVLX or any employees

Question 16

What do you do if you get a ‘1 Or More Bogie Isolated’ Fault Light?

Answer 16

check LED indicators on each car

Check Bogie ICs in normal position

If Bogie is isolated ascertain whether a defect has been booked with TC - if not reinstate bogie

If Bogie normal submit TMM for defective sensor

Question 17

What are operating restrictions for running with up to two isolated bogies?

Answer 17

Reduce speed by 10kmh for any speed over 60kmh