OILTAP R

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Questions and Answers

Where should the measurements for wear on the lower guide plate be taken?

At the center of the lower guide plate

At the edges of the lower guide plate

Only in the area of maximum wear (correct)

Anywhere on the lower guide plate

What is the formula to calculate the wear on the lower guide plate?

Wear = Measured value 1 - Measured value 2 (correct)

Wear = Measured value 2 - Measured value 1

Wear = Measured value 1 / Measured value 2

Wear = Measured value 1 + Measured value 2

What should be done if the wear on the lower guide plate is more than 1.2 mm?

Contact the relevant OPS (correct)

Replace the lower guide plate during next maintenance

Perform an additional measurement to confirm the result

Ignore the wear and continue operation

What is the purpose of checking the cylindrical pins of the main contact carriers during maintenance?

To ensure correct seating and secure them from loosening Signup and view all the answers

What is the replacement criterion for the lower guide plate based on wear?

If wear is in the range from 0.8 mm to 1.2 mm Signup and view all the answers

What tool should be used to measure the wear on the lower guide plate?

A caliper Signup and view all the answers

Why is a visual check of the lower guide plate sufficient to find the area of maximum wear?

Because wear always occurs in a visible area Signup and view all the answers

What is the purpose of measuring the wear on the lower guide plate?

To determine when to replace the lower guide plate Signup and view all the answers

What is the movable contact wear criterion for type C250?

5-6 mm Signup and view all the answers

According to the table, what is the minimum residual value for type V200 with 14 pitches?

20 Ø Signup and view all the answers

What is the fixed contact wear criterion for type V350/500/700 except with 14 pitches?

17 Ø Signup and view all the answers

Where can additional information about maintenance procedures for type M be found?

TS284043.1 Signup and view all the answers

What is the new condition movable contact dimension for type A in mm?

25 Ø Signup and view all the answers

What is the wear calculation criterion for type C350?

individual wear Signup and view all the answers

What is the minimum residual value for type V350/700 with 14 pitches?

20 Ø Signup and view all the answers

What is the fixed contact wear criterion for type B?

5-6 mm Signup and view all the answers

Where can information about guide plate inspection for type V200 be found?

Not specified Signup and view all the answers

What is the movable contact wear criterion for type A?

diameter Signup and view all the answers

What is the recommended procedure when the wear MC is less than or equal to 0.8 mm?

No measures are necessary Signup and view all the answers

When should the lower guide plate be replaced?

When the wear measurement is greater than 1.3 mm Signup and view all the answers

What is the specific distance to measure wear on the lower guide plate?

6 cm Signup and view all the answers

What is the function of the diverter switch in the context of wear MC type R/T?

To latch onto one side for rigid operation Signup and view all the answers

What is the recommended procedure when the wear MC is greater than 1.3 mm?

Release for rigid operation, if MC wear is less than 1.3 mm in all 3 sectors on one side Signup and view all the answers

What is the purpose of the visual check of the lower guide plate?

To find the area of maximum wear Signup and view all the answers

What is the significance of the date '3 March, 2023' in the context of the change log?

It is the date of the adjustment of limit values Signup and view all the answers

What is the recommended procedure when the wear MC is between 0.8 mm and 1.3 mm?

Replace the contact system at the next maintenance Signup and view all the answers

Study Notes

Wear MC Type R/T

Wear MC type R/T has three decision criteria:
≤ 0.8 mm: no measures necessary
0.8 < x ≤ 1.3 mm: replacement of contact system at next maintenance
> 1.3 mm: release for rigid operation, if MC wear is < 1.3 mm in all 3 sectors on one side and the diverter switch is latched onto this side for rigid operation

Change Log

3 March, 2023: TSC Steindl adjusted limit values
21 July, 2006: TSC Steindl published the first version

Guide Plate - Checking Wear

Visual check of the lower guide plate is sufficient to find the area of maximum wear
Measurements should be taken in this area using a caliper
Wear results from the difference between two measured values
Replacement criterion:
0.8 mm to 1.2 mm: replace the lower guide plate during next maintenance
More than 1.2 mm: contact the relevant OPS

Oil Compartment Contacts - Checking Cylindrical Pins

Correct seating of all cylindrical pins of the main contact carriers must be checked during every inspection or maintenance
Secure them from loosening where necessary

Admissible or OLTC-Dependent Reference Dimension

Different values for movable and fixed contacts, depending on the type of contact carrier
Minimum residual values, individual wear criteria, and additional wear criteria are specified for each type

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Description

This quiz covers the maintenance procedures for railway contact systems based on the wear measurement values.

OILTAP R_CDS