COUPLING AND UNCOUPLING

Question 1

NAME COUPLER COMPONENTS OF A B92

Answer 1

1. Electrical coupler
2. Mechanical coupler
3. Air Transfer Valve
4. Locating Block
5. Racking Bar
6. Coupler Isolation Cock

Question 2

What additional components does the B2007 have?

Answer 2

1. Friends and Foe Sensor
2. Coupler Head Isolation Clock

Question 3

What is the purpose of the Electrical Coupler?

Answer 3

Transfer electrical circuits and information between vehicles

Question 4

What is the purpose of the mechanical coupler?

Answer 4

Physically holds vehicles together

Question 5

What is the purpose of the Air Transfer Valve?

Answer 5

Transfer Air pressure between vehicles

Question 6

What are the purpose of Locating block and Racking Bar?

Answer 6

Used to rack the coupler head back for mechanical purposes

Question 7

What is the purpose of the Coupler Isolation Cock?

Answer 7

Cuts off air supply during coupling by preventing air passing through ATV

Question 8

What is the purpose of the Self Centering Device?

Answer 8

It allows the manual alignment of couplers on bends and prevents coupler from striking objects

Question 9

What is the purpose of Friends and Foe Sensor?

Answer 9

It detects mechanical coupling to B92/B2007 and prohibits electrical coupling to B92

Question 10

Where is the CHIC located? What position must it be default?

Answer 10

1. Below the valve’s assembly
2. Must be horizontal

Question 11

WHAT ARE THE 3-METER COUPLER CHECKS THAT YOU MUST CARRY OUT?

Answer 11

1. Electrical couplers positioned correctly
2. ATV free from obstructions, in good condition, with the rubber gronmet present
3. Coupler Assembly must align for the coupling process
   4A. CIC Must be in correct position for the type of coupling
   4B. on B2007, CHIC must be in the correction position for type of coupling

Question 12

WHAT ARE THE 3-METER TRAIN CHECKS?

Answer 12

1. No targets attached
2. No obstructions/scotches under wheels
3. No external equipment covers missing

Question 13

WHAT ARE RED TRAIN CHECKS?

Answer 13

1. Red skirts are secured
2. Red Brake indicators are not showing green
3. Red Tail lights are on

Question 14

Explain the Electrical Coupling Procedure?

Answer 14

1. Collect details from Control. Log and Repeat
2. In E/S, stop at 3m and carry out coupler/vehicle checks. Advise controller of any issues
3. Stop at 1m and check coupler alignment (open end doors)
4. Couple vehicles correctly at no more than 3kph
5. Check Tail, Head and E/S lamps at couple end have extinguished
6. Check AIR PRESSURE LAMP has illuminated
7. Clear INHIBIT and observe it is cleared in other carriage
8. Clear electrical coupling by reversing slightly
9. Update notebook and advise control

Question 15

EXPLAIN MECHANICAL COUPLING PROCEDURE

Answer 15

1. Collect details from Control. Log and Repeat
2. In E/S, stop at 3m and carry out coupler/vehicle checks. Advise controller of any issues
3. Stop at 1m and check coupler alignment (open end doors)
4. Couple vehicles correctly at no more than 3kph
5. CLEAR INHIBIT - inhibit may not clear in the other coupled vehicle
6. Confirm mechanical coupling by reversing (vehicle won’t move, but resistance felt)
7. Update notebook and advise control after successful procedure

Question 16

Explain the UNCOUPLING PROCEDURE?

Answer 16

1. The controller will advise about the location and the vehicles. Log and repeat
2. Ensure enough space around vehicle to carry out uncouple move, no personnel around the vehicle
3. Board the vehicle and select E/S at the coupled end
4. In E/S depress uncouple and listen for ‘clunk’ and observe Tail, Head and E/S lamps at coupled end have illuminated
5. Reverse checking vehicles comes apart
6. Board other vehicle, select E/S, press UNCOUPLE and ensure INHIBIT releases
7. Update notebook and advise control