SEAL-LIP TYPE 8H9520 - Caterpillar

Installation Procedure
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g00561146
Inspect shaft (7) for damage. The diameter of the bearing surface on shaft (7) should be 105.84 0.02 mm (4.167 0.001 inch). Install the dowel to a height of 7.0 0.5 mm (0.28 0.02 inch) above the surface of shaft (7).
Attach a suitable lifting device to shaft (7). The weight of shaft (7) is approximately 25 kg (55 lb). Position shaft (7) on the cylinder block. Install bolts (9). Tighten the bolts to a torque of 270 25 N m (200 18 lb ft).
Install thrust washer (8).
Illustration 2 g00561145
Assemble the idler gear assembly:
If necessary, install bearing (4). Bearing (4) must be 2.50 0.5 mm (0.098 0.02 inch) below the surface of gear (6).
Position gear (3) on gear (6). Install bolts (5).
Illustration 3 g00561144
Attach a suitable lifting device to idler gear assembly (2). The weight of idler gear assembly (2) is approximately 54 kg (119 lb). Install idler gear assembly (2) on the shaft. Install retainer (1). End By:
Install the camshaft drive gear. Refer to Disassembly and Assembly, "Camshaft Drive Gear - Install".