LINK AS-TRACK 3V4991 - Caterpillar

material on clutches that are used in Caterpillar power shift transmissions. Existing guidelines will be revised in the future for other non-metallic discs that are used in power shift transmissions.References
Table 2
References
Media Number Publication Type & Title
SEBF8031 Reuse And Salvage Guidelines , "Transmission Clutch Plates And Disc Assemblies With F37 and F37X Clutch Friction Material"
SEBF8098 Reuse And Salvage Guidelines , "Transmission Clutch Plates and Disc Assemblies With RAYFLEX Clutch Friction Material"
SEBF8115 Reuse And Salvage Guidelines , "Transmission Clutch Plates and Disc Assemblies with Cellulose Friction Material" Identification of Genuine Caterpillar Friction Discs
Because of the quality and status of Caterpillar friction discs, competitors have been trying to duplicate the discs in appearance. A counterfeit friction disc is shown in Illustration 4. The counterfeit disc appears to have nearly identical dimensions to the genuine Caterpillar friction disc that is shown in Illustration 3. In addition, the Caterpillar name and the Caterpillar part number are stamped on the friction material of the counterfeit disc. Refer to Illustration 5. For a more positive identification, genuine Caterpillar friction discs now use a laser to engrave the disc. The friction disc is shown in Illustrations 5 and 6. The trademark, part number, and the engineering numeric designation are engraved on the friction disc teeth. Not stamped on the friction material.Benefits of Genuine Caterpillar Friction Discs
Friction discs in the process of failing will cause hesitation and slippage during the change of gears. If friction discs are allowed to wear further, transmission failure could result. To help ensure a long transmission life, genuine Caterpillar friction discs should be used in Caterpillar transmissions. The Caterpillar friction disc is specially designed and developed for the Caterpillar machine and the applications. Having a greater surface area gives the Caterpillar friction discs a higher gripping strength during the activation of the clutch. The material composition of Caterpillar friction discs provides an optimal coefficient of friction.
Illustration 3 g01474694
The illustration shows a genuine Caterpillar friction disc.
Illustration 4 g01474695
The counterfeit friction disc is similar in appearance and dimensions to the Caterpillar friction disc.
Illustration 5 g01474696
The counterfeit disc has the part number and the Caterpillar name on the friction material. Compare the illustration with the genuine friction disc that has the engraved trademark and the part number on the teeth of the disc.
Illustration 6 g01474697
The illustration contains a genuine Caterpillar friction disc that has the engraved trademark. The genuine Caterpillar friction disc also has the part number, and the engineering numeric designation.
Identification of Non-Metallic Clutch Discs for Power Shift Transmissions
F37
Illustration 7 g01474853
The friction disc has an X pattern of grooves on both sides.
Illustration 8 g01474855
The friction disc has a spiral pattern.
RAYFLEX
Illustration 9 g01474892
The friction disc has a spiral pattern with an X pattern of grooves.
Cellulose Paper
Illustration 10 g01474894
The friction disc has a multi parallel pattern.
Illustration 11 g01474895
The friction disc has a multi parallel pattern.
Note: The points of identification only apply to discs that are used in current Caterpillar power shift transmissions.