HARNESS AS 3C8428 - Caterpillar

Illustration 1 g01189123
Before operating the engine, the oil pump must be lubricated with clean engine oil. The oil pump must turn freely by hand. Damage to the drive gear and internal pump damage can occur if the oil pump is not lubricated with clean engine oil.
Engine oil pump Oil type ... SAE 30 Oil temperature ... 50 °C (122 °F) Pump speed ... 3045 rpm Oil pressure ... 359 kPa (52 psi) Minimum oil flow ... 155 L/min (41 US gpm) (1) Diameter of two shafts ... 18.000 0.005 mm (.7087 .0002 inch)Bores in pump body for two shafts ... 18.050 0.010 mm (.7106 .0004 inch) (2) Seal groovePrior to installation, lubricate the bore in the engine front cover. This will allow the seal groove and the seal to slide. (3) Drive gear In order to install the drive gear, heat the drive gear to the following temperature. ... 316 °C (600 °F)Diameter of the drive gear ... 92.28 0.10 mm (3.6331 0.0039 inch) (4) Seal (5) Distance between front face of gear and housing ... 29.40 0.50 mm (1.158 .020 inch)