SEAL 8B2702 - Caterpillar

Illustration 1 g01797074
(1) 7Y-2397 Sleeve Bearing Inside diameter ... 100.29 0.02 mm (3.948 0.001 inch) Outside diameter ... 116.230 0.013 mm (4.5760 0.0005 inch) Installation depth of the sleeve bearing ... 10.00 0.30 mm (0.394 0.012 inch) (2) 7Y-5102 Sleeve Bearing Inside diameter ... 90.265 0.020 mm (3.5537 0.0008 inch) Outside diameter ... 106.202 0.013 mm (4.1812 0.0005 inch) Installation depth of the sleeve bearing ... 10.00 0.30 mm (0.394 0.012 inch) (3) Lightly lubricate the sealing lip of four lip type seals with the lubricant that is being sealed.Note: Apply 248-7522 Hydraulic Oil to the threads and the face of the locknut. (4) Torque for the locknut ... 7100 360 N m (5240 270 lb ft) (5) Lubricate the inside diameter and the outside diameter of two rings with clean grease. (6) Lubricate the inside diameter and the outside diameter of the seal assembly with clean grease. (A) Diameter of the rod ... 89.930 0.030 mm (3.5405 0.0012 inch) (B) Bore of the cylinder assembly ... 160.00 0.10 mm (6.299 0.004 inch) (C) Bore of the head over two lands ... 90.630 0.030 mm (3.5681 0.0012 inch) (7) 121-1574 Sleeve Bearing Outside diameter ... 95.133 0.033 mm (3.7454 0.0013 inch) Thickness ... 2.475 0.025 mm (0.0974 0.0010 inch) (8) Lubricate the sealing lip of the buffer seal lightly with the lubricant that is being sealed. (9) Lubricate the sealing lip of the U-cup seal lightly with the lubricant that is being sealed. (10) Lubricate the sealing lip of the lip type seal lightly with the lubricant that is being sealed. (11) Before assembly, apply 4C-4032 Bearing Mount Compound to the groove of the wiper seal.