Podcast
Questions and Answers
Which component is identified as having a specific item number 10 associated with it?
Which component is identified as having a specific item number 10 associated with it?
- Guide bush
- Plunger
- Piston packing (correct)
- Cylinder Body
How many Tee bolts M12x35 are required according to the inventory?
How many Tee bolts M12x35 are required according to the inventory?
- 2
- 5
- 3
- 4 (correct)
Which item is associated with the SK-81206 code?
Which item is associated with the SK-81206 code?
- Dust excluder
- Plunger Spring (correct)
- Piston packing
- Dome cover
What is the purpose of the Jubilee clip size-5 as per the list?
What is the purpose of the Jubilee clip size-5 as per the list?
Which item appears to be used for tension control in the assembly?
Which item appears to be used for tension control in the assembly?
What action must be taken to reset the adjuster?
What action must be taken to reset the adjuster?
What is the maximum hole tolerance mentioned?
What is the maximum hole tolerance mentioned?
Why might it be necessary to reset the adjuster?
Why might it be necessary to reset the adjuster?
What does the notation '%%p0.5' most likely refer to in this context?
What does the notation '%%p0.5' most likely refer to in this context?
What is indicated by the term 'stroke' in the provided content?
What is indicated by the term 'stroke' in the provided content?
Which of the following is NOT part of the reset process described?
Which of the following is NOT part of the reset process described?
How is the maximum stroke length described in the content?
How is the maximum stroke length described in the content?
What does the 'ADJUSTER IS TO BE RESET BY' indicate?
What does the 'ADJUSTER IS TO BE RESET BY' indicate?
The phrase '95 MAX' in the context most likely refers to:
The phrase '95 MAX' in the context most likely refers to:
What type of brake system is mentioned in the maintenance manual?
What type of brake system is mentioned in the maintenance manual?
Which chapter contains details about the Bogie Mounted Air Brake System?
Which chapter contains details about the Bogie Mounted Air Brake System?
What is represented by the numbers '58, 37, 38' in the content?
What is represented by the numbers '58, 37, 38' in the content?
In which section of the manual do you find the maintenance information?
In which section of the manual do you find the maintenance information?
What is the purpose of the slack adjuster in the brake system?
What is the purpose of the slack adjuster in the brake system?
What does 'R.D.S.O.GROUP' likely refer to in this context?
What does 'R.D.S.O.GROUP' likely refer to in this context?
What type of item is described in the 'ALT.ITEM' line?
What type of item is described in the 'ALT.ITEM' line?
The notation 'CD/24/98' most likely indicates what?
The notation 'CD/24/98' most likely indicates what?
What could 'SKETCH-81200' refer to in the manual?
What could 'SKETCH-81200' refer to in the manual?
What is the significance of the date entry (e.g., '08/98') in the document?
What is the significance of the date entry (e.g., '08/98') in the document?
What is a key feature of the bogie mounted air brake system that distinguishes it from standard systems?
What is a key feature of the bogie mounted air brake system that distinguishes it from standard systems?
What advantage do low friction composite brake blocks provide?
What advantage do low friction composite brake blocks provide?
Which of the following is a benefit of using the bogie mounted air brake system?
Which of the following is a benefit of using the bogie mounted air brake system?
How many 8" size cylinders are provided for each coach in the new brake system?
How many 8" size cylinders are provided for each coach in the new brake system?
Which material is used in the new brake blocks to provide high friction?
Which material is used in the new brake blocks to provide high friction?
What is one of the main reasons for the redesign of the brake system?
What is one of the main reasons for the redesign of the brake system?
What is a characteristic of the pneumatic pipeline layout in the bogie mounted air brake system?
What is a characteristic of the pneumatic pipeline layout in the bogie mounted air brake system?
What does the brake cylinder pressure depend on?
What does the brake cylinder pressure depend on?
What is the weight reduction of the bogie mounted brake system compared to the conventional air brake system?
What is the weight reduction of the bogie mounted brake system compared to the conventional air brake system?
What is a primary feature of the bogie mounted brake system?
What is a primary feature of the bogie mounted brake system?
What aspect should be ensured when fitting the curved profile/pull rods?
What aspect should be ensured when fitting the curved profile/pull rods?
What can be said about the bogie mounted brake system in relation to traditional systems?
What can be said about the bogie mounted brake system in relation to traditional systems?
Which of the following components is NOT mentioned as part of the bogie mounted brake system?
Which of the following components is NOT mentioned as part of the bogie mounted brake system?
How does the bogie mounted brake system affect the number of components?
How does the bogie mounted brake system affect the number of components?
What is a disadvantage of the conventional air brake system when compared to the bogie mounted system?
What is a disadvantage of the conventional air brake system when compared to the bogie mounted system?
In the context of the text, what does the term 'viable alternative' refer to?
In the context of the text, what does the term 'viable alternative' refer to?
What type of bogies is the WTAC4-3-2-402 designed for?
What type of bogies is the WTAC4-3-2-402 designed for?
What is the weight reduction achieved by the bogie mounted brake system compared to the conventional air brake system?
What is the weight reduction achieved by the bogie mounted brake system compared to the conventional air brake system?
Which component's arrangement must not be reversed during the fitting process of the bogie mounted brake system?
Which component's arrangement must not be reversed during the fitting process of the bogie mounted brake system?
Which feature characterizes the bogie mounted air brake system in comparison to conventional systems?
Which feature characterizes the bogie mounted air brake system in comparison to conventional systems?
What is indicated as a key aspect of the maintenance for the bogie mounted brake system?
What is indicated as a key aspect of the maintenance for the bogie mounted brake system?
In the context provided, which parameter determines the extent of brake cylinder pressure development in the system?
In the context provided, which parameter determines the extent of brake cylinder pressure development in the system?
What is the primary reason for removing the external slack adjuster in the bogie mounted air brake system?
What is the primary reason for removing the external slack adjuster in the bogie mounted air brake system?
How many cylinders of 8" size are provided for each coach in the bogie mounted air brake system?
How many cylinders of 8" size are provided for each coach in the bogie mounted air brake system?
Which of the following is NOT indicated as a benefit of low friction composite brake blocks?
Which of the following is NOT indicated as a benefit of low friction composite brake blocks?
What aspect of the new brake system contributes to reduced wear and tear?
What aspect of the new brake system contributes to reduced wear and tear?
What is a key distinguishing feature of the design of the bogie mounted air brake system?
What is a key distinguishing feature of the design of the bogie mounted air brake system?
Which characteristic of the composite brake blocks aids in achieving a uniform coefficient of friction?
Which characteristic of the composite brake blocks aids in achieving a uniform coefficient of friction?
What type of braking performance improvement is associated with the bogie mounted air brake system?
What type of braking performance improvement is associated with the bogie mounted air brake system?
What is the specified working stroke length for the main line coaches?
What is the specified working stroke length for the main line coaches?
Which measurement is indicated for the self line in the specifications?
Which measurement is indicated for the self line in the specifications?
What measurement is stated for the BG EMU coaches?
What measurement is stated for the BG EMU coaches?
Which of the following values is NOT associated with the working stroke for any of the mentioned coaches?
Which of the following values is NOT associated with the working stroke for any of the mentioned coaches?
Which type of coaches has a working stroke greater than that of the main line coaches?
Which type of coaches has a working stroke greater than that of the main line coaches?
Which of the following dimensions corresponds to the main line coaches?
Which of the following dimensions corresponds to the main line coaches?
What is the primary discrepancy between the working stroke of the main line coaches and the BG EMU coaches?
What is the primary discrepancy between the working stroke of the main line coaches and the BG EMU coaches?
What does the notation '32mm for self line' imply in the specifications?
What does the notation '32mm for self line' imply in the specifications?
What could the number '281' signify in the context of the content provided?
What could the number '281' signify in the context of the content provided?
What is the maximum temperature that should occur on the opposing friction surface of the brake blocks during braking?
What is the maximum temperature that should occur on the opposing friction surface of the brake blocks during braking?
What is the maximum allowable variation in the average coefficient of friction when braking conditions remain the same?
What is the maximum allowable variation in the average coefficient of friction when braking conditions remain the same?
Which of the following must be marked on each brake block for identification?
Which of the following must be marked on each brake block for identification?
What is the minimum thickness to which the brake blocks can wear down, including the back plate?
What is the minimum thickness to which the brake blocks can wear down, including the back plate?
What is a required physical characteristic of the elements making up the brake blocks?
What is a required physical characteristic of the elements making up the brake blocks?
Which marking is specifically required for the identification of non-asbestos type brake blocks?
Which marking is specifically required for the identification of non-asbestos type brake blocks?
What must be ensured regarding the contact between the brake block and the running surface of the wheel?
What must be ensured regarding the contact between the brake block and the running surface of the wheel?
What indicates the condition of brake blocks related to pitting or flaws?
What indicates the condition of brake blocks related to pitting or flaws?
What factors are crucial for determining the service life of brake blocks?
What factors are crucial for determining the service life of brake blocks?
Which working condition could cause health hazards due to brake block usage?
Which working condition could cause health hazards due to brake block usage?
What happens when the piston stroke exceeds a predetermined value?
What happens when the piston stroke exceeds a predetermined value?
What initiates the forward motion of lever (3) after brake block (4) contacts wheel (5)?
What initiates the forward motion of lever (3) after brake block (4) contacts wheel (5)?
What indicates that the piston unit has extended over its full range?
What indicates that the piston unit has extended over its full range?
How does the automatic slack take-up feature operate during the return stroke?
How does the automatic slack take-up feature operate during the return stroke?
What role does lever (8) play in the braking mechanism?
What role does lever (8) play in the braking mechanism?
Which component has moving parts that require a reset after a predetermined stroke?
Which component has moving parts that require a reset after a predetermined stroke?
What is the primary impact of a reduced brake pipe pressure in this system?
What is the primary impact of a reduced brake pipe pressure in this system?
What mechanical action occurs when lever (3) moves about its fulcrum?
What mechanical action occurs when lever (3) moves about its fulcrum?
Which component is responsible for sensing the brake pipe pressure reduction?
Which component is responsible for sensing the brake pipe pressure reduction?
How many pin joints are per bogie in the brake gear arrangement?
How many pin joints are per bogie in the brake gear arrangement?
Flashcards
Resetting the Adjuster
Resetting the Adjuster
The process of restoring the adjuster to its original position.
Adjusting Tube
Adjusting Tube
A tube used for adjusting or fine-tuning a mechanism.
Max Holes
Max Holes
The maximum number of holes that can be created.
Stroke
Stroke
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Rewinding
Rewinding
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4-Fixing
4-Fixing
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Bogie Mounted Air Brake System
Bogie Mounted Air Brake System
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8-inch Brake Cylinders
8-inch Brake Cylinders
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Internal Slack Adjuster
Internal Slack Adjuster
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Composite Brake Blocks
Composite Brake Blocks
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High-Friction Composite Brake Blocks
High-Friction Composite Brake Blocks
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Interconnected Brake Cylinders
Interconnected Brake Cylinders
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Flexible Hoses
Flexible Hoses
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Brake Cylinder Pressure
Brake Cylinder Pressure
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Brake Pipe Pressure Reduction
Brake Pipe Pressure Reduction
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Bogie Mounted Brake System
Bogie Mounted Brake System
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Simplified Design
Simplified Design
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Weight Reduction
Weight Reduction
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System Comparison
System Comparison
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Pull Rod Installation
Pull Rod Installation
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Installation Instructions
Installation Instructions
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Bogie Weight Capacity
Bogie Weight Capacity
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Viable Alternative
Viable Alternative
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Piston
Piston
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Piston Packing
Piston Packing
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Plunger
Plunger
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Spring
Spring
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Air Brake System
Air Brake System
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Slack Adjuster
Slack Adjuster
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Bogie
Bogie
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Brake Cylinder
Brake Cylinder
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Brake Shoe
Brake Shoe
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Coach
Coach
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ICF Design
ICF Design
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Maintenance Manual
Maintenance Manual
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Sketch
Sketch
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Stroke (of a brake cylinder)
Stroke (of a brake cylinder)
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Brake Block Material
Brake Block Material
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Asbestos based 'K' type brake blocks
Asbestos based 'K' type brake blocks
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Non-asbestos based Brake Blocks
Non-asbestos based Brake Blocks
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Brake Block Wear Thickness
Brake Block Wear Thickness
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Uniform Distribution of Brake Block Material
Uniform Distribution of Brake Block Material
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Coefficient of Friction
Coefficient of Friction
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Brake Block Service Type
Brake Block Service Type
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Back Plate
Back Plate
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Brake Block Marking
Brake Block Marking
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Brake Block Temperature Range
Brake Block Temperature Range
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Brake Cylinder Operation
Brake Cylinder Operation
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Automatic Slack Adjuster
Automatic Slack Adjuster
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Lever Mechanism
Lever Mechanism
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Pull Rod
Pull Rod
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Brake Block Contact
Brake Block Contact
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Independent Operation
Independent Operation
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Study Notes
Bogie Mounted Air Brake System
- This system addresses issues with previous designs, such as slack adjuster failure and cast iron brake blocks.
- It uses 8" diameter cylinders instead of 14" cylinders for each bogie, with built-in single-acting slack adjusters that compensate for wheel/brake block wear.
- High friction composite 'K' type brake blocks are used, and the material composition is chosen for optimal balance between braking characteristics and wear resistance.
- Bogie brake rigging is modified to provide a mechanical advantage of 7.644 for non-AC coaches and 8.40 for AC coaches, using curved profile pull rods interconnecting levers.
- These rods have additional holes for adjustment after specified wear.
- Brake cylinders are mounted on the bogie frame, with pneumatic pipelines connecting cylinders on one bogie laid over the frame. Flexible hoses connect output lines to bogie pneumatic lines for flexibility during bogie movements.
Composition Brake Blocks
- Low friction composite brake blocks offer benefits like reduced braking distance, lower weight, and increased wear life compared to cast iron blocks; these blocks also reduce wear and tear of the brake rigging and produce less noise during braking.
- Composition material balance is crucial for braking characteristics and wear resistance, with a balance needed between these factors and the wear on the running surface of wheels and effect on adhesion between rail and wheel.
- The average friction coefficient is 0.25. This coefficient should remain consistent regardless of initial speed, bedding-in, pressure, or temperature.
- Asbestos-based 'K' type blocks conform to RDSO drawing No. 98146. Asbestos usage is prohibited. Lead and zinc, in any form, are also not recommended in the brake blocks.
Maintenance and Operation
- Bogie mounted brake system maintenance closely parallels that of the standard air brake system, with some critical differences in brake cylinders.
- Correct part usage, avoiding intermixing of components like pull rods and ensuring precise component assembly are critical for prevention of issues and correct assembly and maintenance.
- Testing procedures ensure functionality and identify leakage points, with tests conducted at various pressures and observing piston movement.
- Precise component identification details and usage are extremely important for correct assembly and maintenance, especially with regard to pull rods and the adjusting tube assembly. Precise maintenance and adjustment using the red paint mark is critical to avoid exceeding the maximum piston stroke.
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Description
Test your knowledge on the advanced features of the Bogie Mounted Air Brake System. This quiz covers the design improvements, braking mechanisms, and the composition of composite brake blocks compared to traditional systems. Explore the mechanical advantages and specifications of this innovative braking technology.
