CAP-DUST 3884327 - Caterpillar

(1) Diameter of drive shaft and idler shaft (new) ... 22.217 0.005 mm (.8747 .0002 in) Bore in bearings for drive shaft and idler shaft (new) ... 22.258 0.008 mm (.8763 .0003 in)(2) Length of gears (new) ... 79.375 0.025 mm (3.1250 .0010 in) Depth of bores for gears (new) ... 79.502 0.020 mm (3.1300 .0008 in)(3) 2S2760 Spring (oil pressure relief valve): Length under test force ... 117.9 mm (4.64 in)Test force ... 490.0 27.0 N (110.11 6.07 lb)Free length after test ... 152.9 mm (6.02 in)Outside diameter ... 27.00 mm (1.063 in)(4) Distance from the end of the idler shaft to gear face ... 36.50 0.25 mm (1.437 .010 in) Maximum temperature of gear at installation ... 316°C (600°F)(5) Distance from the end of the drive shaft to gear face ... 53.00 0.25 mm (2.087 .010 in) Maximum temperature of gear at installation ... 316°C (600°F)
Pump Body(6) Pump body bearing joints.(7) Position of pump body bearing junction from the vertical centerline through bearing bores ... 30 15 degrees(8) Install bearings in bottom of gear bores to a depth of ... 0.30 mm (.002 in)
Before operation, the pump must be lubricated with clean engine oil and the pump must turn freely by hand or damage to parts can be the result.