HCMT Underframe Flashcards

1
Q

On what cars is the main reservoir and what side

A

Every car
‘B’ side

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2
Q

What does the surge reservoir do and what end located

A

Supply compressed air to air bag suspension at each bogie

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3
Q

What does the brake supply reservoir do

A

Supply compressed air to the EP valves to charge brake cylinder

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4
Q

Where is the tread scrubber located

A

TC car only

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5
Q

Where is the park brake manual release located

A

DMp, Mp and DT cars

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6
Q

What is primary suspension on the bogie

A

Rubber laminated springs

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7
Q

Where is the air suspension isolating cocks located

A

‘B’ side no 2 end

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8
Q

How is the sand distributed onto the rail head

A

Pneumatic pressure

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9
Q

Where are the sanders located on the Tc and DMp cars

A

Nr 2 end only

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10
Q

Where are the sanders located on the Mp and DT cars

A

Both ends

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11
Q

Does the coupler have an electrical component

A

No

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12
Q

How do you open the coupler cover

A

Unlock the locking mechanism
With assistance, raise cover
Use second locking mechanism to lock in position

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13
Q

Can you lift the coupler cover by yourself

A

No

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14
Q

Name the 5 isolating cocks under the coupler cover

A

Uncouple device isolating cock
Towing unit isolating cock
Brake pipe end cock
Main reservoir end cock
Horn isolating cock

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15
Q

Name the 5 cocks in the brake control module TC car

A

Brake supply
Brake cylinder bogie 2
Brake cylinder bogie 1
Tread scrubber
Sander

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16
Q

Where is the BCU located and what does it do

A

On every car
Controls application and release of the EP friction brakes

17
Q

Where is the main res isolating cock and what cars?

A

Every car at the end of each car

18
Q

What are some of the features of the bogie?

A

• Speed Sensors
• Tread Scrubber (Tc Car only)
• One Park Brake per axle (DMp, Mp and DT cars)
• Park Brake Manual Releases (DMp, Mp and DT cars)
• Primary and Secondary Suspension.

19
Q

Where are the emergency ladder access located?

A

Centre doors on all trailers

20
Q

Where is the auxiliary power supply container located?

A

Tc and DT cars

21
Q

What does the auxiliary power supply container have in it? ( 3 answers)

A

• Auxiliary Inverter
• Medium voltage box
• Battery charger

22
Q

What does the auxiliary power supply system convert 1500v DC to and where does it go?

A

415V 3 phase AC to the train and supply power to the battery charger

23
Q

What voltage does the battery charger supply to the train?

24
Q

How long will batteries provide emergency power for?

A

Min of 2 hours

25
What does the Air supply unit contain? (3 answers)
Main air compressor Air dryers Filters
26
Where is the Trip cock isolating cock located?
B side between doors number 2 and 4 on the TC car
27
What are the 5 cocks in the brake control module of a DMp, DT and Mp car?
• Brake Supply • Brake cylinder bogie 2 • Brake cylinder bogie 1 • Park brake • Sanders
28
What does the high voltage box consist of? (2 answers)
• HSCB • Harmonic wave detection device
29
What does the variable voltage and variable frequency cabinet contain? (2 answers)
• Two traction inverter modules( one per bogie) • Traction control unit
30
Will the Panto isolating cock on the DMp car isolate the Panto?
No, because the auxiliary res maintain Panto in raised position
31
When will the auxiliary res automatically raise the Panto?
• When there is insufficient MR pressure on the car to raise the local pantograph (i.e., train start up) • When the car has been isolated from the MR system.
32
Will the Panto isolating cock on a Mp car isolate the Panto?
Yes because there is no auxiliary compressor
33
Where is the medium voltage box located?
number 1 end B side of Mp car
34
What is the function of the medium voltage box?
Maintain train lined 415vAc that is produced by the auxiliary inverters