Podcast
Questions and Answers
What does the marking 'UT' signify in the context of wheel and axle maintenance?
What does the marking 'UT' signify in the context of wheel and axle maintenance?
Where should permanent markings be made on bearings that have been serviced?
Where should permanent markings be made on bearings that have been serviced?
What aspect must the examining workshops maintain records of for axles tested?
What aspect must the examining workshops maintain records of for axles tested?
Which stage must be completed before stamping the marking on the inner hub fillet?
Which stage must be completed before stamping the marking on the inner hub fillet?
Signup and view all the answers
What does the document imply about bearings serviced due to accidents?
What does the document imply about bearings serviced due to accidents?
Signup and view all the answers
Which of the following details is NOT required to be maintained by the examining workshops?
Which of the following details is NOT required to be maintained by the examining workshops?
Signup and view all the answers
Which elements are included in the particulars to be maintained for ultrasonic testing of axles?
Which elements are included in the particulars to be maintained for ultrasonic testing of axles?
Signup and view all the answers
What is the primary purpose of the branding detailed in this appendix?
What is the primary purpose of the branding detailed in this appendix?
Signup and view all the answers
What is NOT an example of when a bearing needs to be marked permanently?
What is NOT an example of when a bearing needs to be marked permanently?
Signup and view all the answers
Where should markings related to ultrasonic testing be applied?
Where should markings related to ultrasonic testing be applied?
Signup and view all the answers
What is indicated by the 'UT' marking on axles?
What is indicated by the 'UT' marking on axles?
Signup and view all the answers
What is the required action for bearings serviced during POH?
What is the required action for bearings serviced during POH?
Signup and view all the answers
What must be done to the surface before stamping the marking on the inner hub fillet?
What must be done to the surface before stamping the marking on the inner hub fillet?
Signup and view all the answers
Which of the following is NOT a detail that examining workshops must maintain regarding axles?
Which of the following is NOT a detail that examining workshops must maintain regarding axles?
Signup and view all the answers
After which event should bearings be marked permanently?
After which event should bearings be marked permanently?
Signup and view all the answers
What element is essential for markings during ultrasonic testing of axles?
What element is essential for markings during ultrasonic testing of axles?
Signup and view all the answers
Which detail related to axles must be recorded in registers maintained by the workshops?
Which detail related to axles must be recorded in registers maintained by the workshops?
Signup and view all the answers
What should NOT be done with bearings that experienced a hot box incident?
What should NOT be done with bearings that experienced a hot box incident?
Signup and view all the answers
Which statement is correct regarding the maintenance of particulars for tested axles?
Which statement is correct regarding the maintenance of particulars for tested axles?
Signup and view all the answers
What is the purpose of stamping markings cold on the inner hub fillet?
What is the purpose of stamping markings cold on the inner hub fillet?
Signup and view all the answers
What is indicated by the marking stamped cold on the inner hub fillet?
What is indicated by the marking stamped cold on the inner hub fillet?
Signup and view all the answers
Which detail must be permanently marked on bearings serviced due to a hot box incident?
Which detail must be permanently marked on bearings serviced due to a hot box incident?
Signup and view all the answers
What process should be completed before applying the permanent marking on the bearing?
What process should be completed before applying the permanent marking on the bearing?
Signup and view all the answers
Who is responsible for maintaining records of axles tested for ultrasonic testing?
Who is responsible for maintaining records of axles tested for ultrasonic testing?
Signup and view all the answers
What type of markings must be kept by examining workshops for axles tested?
What type of markings must be kept by examining workshops for axles tested?
Signup and view all the answers
Which marking indicates ultrasonic testing has been performed on an axle?
Which marking indicates ultrasonic testing has been performed on an axle?
Signup and view all the answers
Where should the marking for ultrasonic testing be applied?
Where should the marking for ultrasonic testing be applied?
Signup and view all the answers
Which aspect is essential for ensuring proper branding on bearings?
Which aspect is essential for ensuring proper branding on bearings?
Signup and view all the answers
What happens to bearings that undergo servicing due to accidents?
What happens to bearings that undergo servicing due to accidents?
Signup and view all the answers
What is one of the first steps in the axle testing process?
What is one of the first steps in the axle testing process?
Signup and view all the answers
What must be done after the surface is properly ground on the inner hub fillet?
What must be done after the surface is properly ground on the inner hub fillet?
Signup and view all the answers
Which marking indicates that ultrasonic testing has been performed on an axle?
Which marking indicates that ultrasonic testing has been performed on an axle?
Signup and view all the answers
What information must be maintained by the examining workshops regarding axle markings?
What information must be maintained by the examining workshops regarding axle markings?
Signup and view all the answers
When should bearings be permanently marked according to the guidelines?
When should bearings be permanently marked according to the guidelines?
Signup and view all the answers
What detail is NOT necessary for ultrasonic testing markings of axles?
What detail is NOT necessary for ultrasonic testing markings of axles?
Signup and view all the answers
Which action is required for bearings that have been serviced during a POH?
Which action is required for bearings that have been serviced during a POH?
Signup and view all the answers
What is the purpose of recording the particulars of axles tested?
What is the purpose of recording the particulars of axles tested?
Signup and view all the answers
Where should the permanent markings on bearings be placed?
Where should the permanent markings on bearings be placed?
Signup and view all the answers
What is required of the examining workshops in regards to ultrasonically tested axles?
What is required of the examining workshops in regards to ultrasonically tested axles?
Signup and view all the answers
What does the marking 'UT' specifically refer to?
What does the marking 'UT' specifically refer to?
Signup and view all the answers
What is the primary information required to be recorded by the examining workshops for axles tested?
What is the primary information required to be recorded by the examining workshops for axles tested?
Signup and view all the answers
Which of the following describes the process to be followed before stamping the marking on the inner hub fillet?
Which of the following describes the process to be followed before stamping the marking on the inner hub fillet?
Signup and view all the answers
What does the marking stamped cold on the inner hub fillet signify?
What does the marking stamped cold on the inner hub fillet signify?
Signup and view all the answers
When should a bearing be permanently marked according to the guidelines?
When should a bearing be permanently marked according to the guidelines?
Signup and view all the answers
Which marking detail is NOT necessary for ultrasonic testing of axles?
Which marking detail is NOT necessary for ultrasonic testing of axles?
Signup and view all the answers
In which specific part of the bearing should permanent markings be made?
In which specific part of the bearing should permanent markings be made?
Signup and view all the answers
What is a necessary action concerning bearings that have been affected by a hot box incident?
What is a necessary action concerning bearings that have been affected by a hot box incident?
Signup and view all the answers
Which statement is correct regarding the storage of records related to axle markings?
Which statement is correct regarding the storage of records related to axle markings?
Signup and view all the answers
What must be done prior to applying the marking on the inner hub fillet?
What must be done prior to applying the marking on the inner hub fillet?
Signup and view all the answers
Which detail is essential for maintaining records of axles tested by workshops?
Which detail is essential for maintaining records of axles tested by workshops?
Signup and view all the answers
What does the term 'rediscing' refer to in the context of bearing servicing?
What does the term 'rediscing' refer to in the context of bearing servicing?
Signup and view all the answers
Which of the following markings indicates that ultrasonic testing was performed on axles?
Which of the following markings indicates that ultrasonic testing was performed on axles?
Signup and view all the answers
What specific information should be included in the register for ultrasonic tested axles?
What specific information should be included in the register for ultrasonic tested axles?
Signup and view all the answers
Where should the permanent markings be placed on serviced bearings?
Where should the permanent markings be placed on serviced bearings?
Signup and view all the answers
What indicates that a bearing has been serviced due to a hot box incident?
What indicates that a bearing has been serviced due to a hot box incident?
Signup and view all the answers
Which marking must be cold-stamped on the inner hub fillet?
Which marking must be cold-stamped on the inner hub fillet?
Signup and view all the answers
What does the note indicating 'UT' signify in wheel and axle maintenance?
What does the note indicating 'UT' signify in wheel and axle maintenance?
Signup and view all the answers
How should the markings on bearings that have been serviced be applied?
How should the markings on bearings that have been serviced be applied?
Signup and view all the answers
What must be maintained by the examining workshops regarding axles that have undergone ultrasonic testing?
What must be maintained by the examining workshops regarding axles that have undergone ultrasonic testing?
Signup and view all the answers
What must be completed before stamping the marking on the inner hub fillet?
What must be completed before stamping the marking on the inner hub fillet?
Signup and view all the answers
Which detail is NOT required to be stamped on the inner hub fillet?
Which detail is NOT required to be stamped on the inner hub fillet?
Signup and view all the answers
In which part of the bearing should permanent markings for serviced items be placed?
In which part of the bearing should permanent markings for serviced items be placed?
Signup and view all the answers
What information is crucial for maintaining records of axles tested by workshops?
What information is crucial for maintaining records of axles tested by workshops?
Signup and view all the answers
What should NOT be done with bearings that have experienced a hot box incident?
What should NOT be done with bearings that have experienced a hot box incident?
Signup and view all the answers
Study Notes
Branding Details on Wheels and Axles
- Wheel Details: Stamped or marked on the outer face of the wheel rim (rough or finished). For LHB coaches, stamping on the outer hub face. Additional markings (S.No. 1-4) on the outer hub fillet.
- Wheel Centre Details: Cold stamped or electrically etched on outer hub face at specific locations.
- Axle Details: Stamped or electrically etched on both ends (5 mm letters for rough/finished axles; 10 mm if forged).
- Assembly Details: Marked on the outer face of the wheel/wheel centre hub (10 mm letters).
- PCD of Stamping: Different wheel types have different PCD (Pitch Circle Diameter) for stamping on rims. Example: WTAC3-0-2-301, T-0-2-622 for coaching wheels have 788mm PCD.
- Additional Marking (X): Required for LHB coach wheels.
- Mandatory Markings: All specified markings on wheels, wheel centers, and axles are mandatory. Locations are indicated.
Outer Ring Marking
- Reconditioning/Remanufacturing: "R" encircled marking must be on the inner diameter of the outer ring (straight portion).
- Caution: Avoid damaging the raceways when marking.
- Marking Method: Suitable scribing tool. Electric etching or steel stamping prohibited.
Marking of Overhauling Particulars on Backing Ring of CTRB
- Location: Stamping on backing ring of CTRB.
- Size: 20 mm letters and numbers.
- Content: Workshop code, month, and year.
- Legibility: Stamping must be legible.
Marking for Ultrasonic Testing of Axles
- Location: Inner hub fillet.
- Method: Cold stamping.
- Content: Railway workshop code, month, year of test (initial of examiner).
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
This quiz covers the essential branding and marking details for wheels and axles used in LHB coaches. It includes information on stamping, etching, and the specific locations for mandatory markings. Test your knowledge of wheel and axle assembly standards as outlined in technical specifications.
