CRANKSHAFT GP 2Y5206 - Caterpillar

Table 2
SR4B Generators    
Type     Model     Generator serial number prefix     Is the drive hub keyed?     Drive hub location    
SR4B-GD     690     G5L, G5M, G5K, G5B, G5N, G4X, G5C, G5R, G4S, G5D, G5S     no    
49.784 mm (1.96 inch) from end of shaft to hub bolt circle.    
SR4B     690     3EN, 3FN, 3HN, ABH, 2GM, 2DN, 4WN, ABM, 3BM, 2DM, 6SN, ABY, 4DM, 2FN, 7DN, ACA     no    
46.228 mm (1.82 inch) from end of shaft to hub bolt circle.    
SR4B     820     2HN, AAY, AAD, A4A, AAR, AAJ, 1HN, 2SN, 7TN, AEB, 4GN, 9CN, AEZ, 2GZ, 8XS     no    
46.228 mm (1.82 inch) from end of shaft to hub bolt circle    
SR4B-GD     820     G6X, G6S, G6W, G6T, G5J, G5Z, G4Z, G5J, G5A, G6C, G6R, G6F     no    
46.228 mm (1.82 inch) from end of shaft to hub bolt circle.    
SR4B     860     8LZ, 6ZZ, 9GZ, 8PZ, 8TZ, 9DZ, 9WZ, 9XZ, 9MZ, 9RZ     no    
46.228 mm (1.82 inch) from end of shaft to hub bolt circle.    
Table 3
SR4BHV Generators    
Type     Model     Generator serial number prefix     Is the drive hub keyed?     Drive hub location    
SR4BHV     2400     AEY, AAL, AES, ABA, ABG, AEL, AEG, ACG, AEA, ACN, ACZ     yes    
24.64 0.76 mm (0.97 0.03 inch) from hub bolt face to close coupled adapter mounting bolt face.    
SR4BHV     2600     A5A, A4Z, A4Y, A4X, PCP     yes    
25.4 mm (1 inch) from hub bolt face to close coupled adapter mounting bolt face.    
SR4BHV     2700     G3N, G3R, G3S, G3T, G3W, G3X, G3Y, KHD, G4A, G4B     yes    
25.4 mm (1 inch) from hub bolt face to close coupled adapter mounting bolt face.    
SR4BHV     2800     ABE, ADJ, ABT, ACB, ADB     yes    
24.64 0.76 mm (0.97 0.03 inch) from hub bolt face to close coupled adapter mounting bolt face.    Drive Hub Removal
Separate the generator from the engine if needed. Refer to Systems Operation Testing and Adjusting Disassembly and Assembly, SENR5359, "Generator - Remove" for a generic description to remove the terminal box and generator.
Install the adaptor, puller assembly, and safety chains. Refer to Illustration 4.
Illustration 4 g02163830
Typical example of modified tooling used for hub removal
Ensure that all of the mounting bolts for the adaptor are installed equally. The adaptor MUST be installed parallel to the drive hub. Proper installation will ensure that the load is distributed evenly between the mounting bolts. Proper installation will ensure that the puller assembly pulls evenly on the drive hub.
Ensure that the hydraulic cylinder is fully retracted.
Keep the puller assembly aligned with the drive hub and rotor shaft.
Ensure that the puller assembly is supported by an appropriate lifting device.
Apply pre-load pressure to the puller assembly to allow the assembly to remain in place prior to heating the drive hub. 20.7 kPa (3,500