BELT GP-SERPENTINE 3488106 - Caterpillar

PUMP COVER
PUMP BODYTest on test stand, with SAE 10W oil at 120°F (49°C) Output ... 72 U.S. gpm(272 litre/min) at a pressure of ... 45 psi(310 kPa)with pump at ... 2550 rpmOutput ... 38 U.S. gpm(144 litre/min) at a pressure of ... 81 psi(560 kPa)with pump at ... 2550 rpmOil pump speed with engine at 2100 rpm ... 3730 rpmRotation of drive gear (as seen from drive end) ... Clockwise Make reference to TIMING GEARS to find oil pump drive gear.(1) Diameter of gear shafts (new) ... .8747 .0002 in.(22.217 0.005 mm) Bore in bearings for gear shafts (new) ... .8763 .0003 in.(22.258 0.008 mm)(2) Length of gears (new) ... 3.1250 .0010 in.(79.375 0.025 mm) Depth of bores for gears (new) ... 3.1300 .0008 in.(79.502 0.020 mm)(3) 2S2760 Spring (oil pressure relief): Length under test force ... 4.64 in.(117.9 mm)Test force ... 110 6 lb.(490 27 N)Free length after test ... 6.02 in.(152.9 mm)Outside diameter ... 1.063 in.(27.00 mm)(4) Distance from the end of the idler shaft to gear face ... 1.437 in.(36.50 mm)(5) Distance from the end of the drive shaft to the gear face ... 2.087 in.(53.00 mm) Maximum temperature of gears at installation ... 600°F(316°C)(6) Bearing junction.(7) Position of bearing junction from the centerline through bearing bores ... 30 15°Install bearings so they are even with outside of pump body and even with FACE A of pump cover.