VALVE GP-RELIEF 1355491 - Caterpillar

Smeared Faces of Reaction
Clutch plates will show light smeared faces of reaction and heavy smeared faces of reaction. Smeared clutch plates have bronze lines on the faces of reaction. The lines are bronze material that is transferred from the friction material to the disc assemblies.Clutch plates that have narrow circumferential lines are known as lightly smeared plates. Clutch plates that are lightly smeared can only be reused in clutches that engage first. Do not use these plates in load clutches. Refer to Guidelines For Reusable Parts And Salvage Operations, SEBF8014, "Identification and Applications of Transmission Clutch Plates and Specifications to machine Reaction Faces for Power Shift Transmissions" for the correct location of load clutches.Note: Do not reuse clutch plates that are heavily smeared. Heavily smeared plates can only be reused after reconditioning.
Illustration 40 g01561468
The clutch plate is lightly smeared. The plate must be put through the reconditioning operation if the plate will be reused in a load clutch.
Illustration 41 g01561470
The clutch plate is lightly smeared. The plate must be put through the reconditioning operation if the plate will be reused in a load clutch.
USE THIS PART AGAIN.Reuse the plate in clutches that engage first only.
Illustration 42 g01561471
The clutch plate is heavily smeared. The plate can be used again after reconditioning.
USE THIS PART AGAIN.Reuse the plate after reconditioning.Polished Faces of Reaction
The normal operation of a transmission will cause the clutch plates and disc assemblies to wear. The top photo shows a new clutch plate. When the plate was machined, marks were put on the face of reaction. Throughout normal operation, the marks will wear away.Do not use clutch plates that have a smooth, polished face of reaction. Some clutch plates will have a face of reaction that is smooth and polished, and the original marks can still be seen. Illustration 43 shows the original marks. Other clutch plates will have a smooth, polished face of reaction, and the original marks will be worn off. Clutch plates that have a polished face of reaction can be used again after reconditioning, if the clutch plates are within the specifications for the reconditioning operation.
Illustration 43 g01561466
The new clutch plate shows original marks on the face of reaction.
Illustration 44 g01561463
The clutch plate shows a polished face of reaction. The plate can be used again after reconditioning.
USE THIS PART AGAIN.Reuse the plate after reconditioning.Procedure for Checking Flatness
Transmission clutch plates and disc assemblies must be flat within the following limits to be reused. The plates and discs must be checked for both warp and dish. The plates may be warped, or the plates may be dished so the plates should be checked for both forms of wear. Any plate or any disc that has more than 0.38 mm (0.015 inch) of warp must not be used again. Any plate or any disc that is dished to more than 0.13 mm (0.005 inch) must not be used again. At the same time, plates and discs may be warped and plates and discs may be dished. These plates or discs can be