Routinely Inspect Couplers For:
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Routinely Inspect Couplers For:. Cracks Excessive Corrosion Broken Parts Bent or Distorted Parts Which Hinder Operation Proper Coupling and Uncoupling Operation less than 2 mph. Gages can be obtained from * Matrix Metals (281) 342-5511 www.railroadgage.com

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Routinely Inspect Couplers For:

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Routinely inspect couplers for

Routinely Inspect Couplers For:

  • Cracks

  • Excessive Corrosion

  • Broken Parts

  • Bent or Distorted Parts Which Hinder Operation

  • Proper Coupling and Uncoupling Operation less than 2 mph


Routinely inspect couplers for

  • Gages can be obtained from *

  • Matrix Metals (281) 342-5511

  • www.railroadgage.com

  • Winchester Industries (860) 379-5336

  • * These are provided for your information only, MSHA does not endorse their products.


Routinely inspect couplers for

The following five (5) examples show when the couplers

need to be removed from service, repaired according to

manufacturer specifications, or replaced.

To check the lock operation, depress the spring-activated lock

until the lock retracts fully into the coupler body and lines up with

the coupler contour surface. If the lock does not fully retract in

the coupler body or return to its normal position the lock and

spring may need replaced.

Check lock levers for binding. Any binding that occurs can

prevent the lever from returning to the nominal position and

the coupler needs to be removed from service.


Routinely inspect couplers for

Pulling Lug Wear Test

Must not seat

Must not seat on any surface of pulling lug. If gage seats, casting is to or beyond

1/4” wear limit.


Routinely inspect couplers for

Lock Thickness Wear Test

Must not seat

Must not seat. If gage seats, casting is to or beyond 1/8” wear limit.


Routinely inspect couplers for

Guard Arm Wear Test

Must not

seat

1/8” maximum allowable wear limit.


Routinely inspect couplers for

Guard Arm Distortion and Lock Wear Test

Must not pass through. If gage does pass, apply new lock and check again.

If gage still passes through, body is rejected.


Routinely inspect couplers for

Guard Arm Distortion Test

Must not pass through contour. If gage does pass through body is rejected.


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