BUSHING 1V9148 - Caterpillar

Serial Numbers: 90U1831-Up 91U449-Up
SECTION A-APressure of fuel to open the bypass valve ... 30 psi(205 kPa)(1) 2P4252 Bypass Spring: Color Code ... one white stripeLength under test force ... 1.75 in(44.5 mm)Test force ... 2.03 .12 lb.(9.04 0.54 N)Free length after test ... 1.97 in.(50.0 mm)Outside diameter ... .406 in.(10.31 mm)(2) Torque for bolt ... 27 3 lb. ft.(38 4 N m)(3) Bore in bearing (new) ... .4953 .0005 in.(12.581 0.013 mm) Diameter of shaft (new) ... .4937 .0001 in.(12.540 0.003 mm)(4) Install inner seal as shown to a depth of ... .406 .010 in.(10.31 0.25 mm)Install outer seal as shown even with top surface. Put 8H5137 Sealer on outside diameter of seals before installation. Remove any extra sealer after installation.
Use 5P2394 Seal Pilot Tool when installing shaft in seals to prevent damage of seal lips.
(5) Plug must be pressed flush with outside surface.(6) Install check valve as shown to a depth of ... .57 .02 in.(14.5 0.5 mm)(7) Depth of bore for gears (new) ... .3750 .0003 in.(9.525 0.008 mm) Width of gears (new) ... .3730 .0003 in.(9.474 0.008 mm)(8) Height of dowel ... .371 .003 in.(9.42 0.08 mm)(9) Bearing must not extend beyond this surface.(10) Bore in gear (new) ... .4926 .0003 in.(12.512 0.008 mm) Diameter of shaft (new) ... .4914 .0003 in.(12.481 0.008 mm)Serial Numbers: 90U1 thru 90U1830 91U1 thru 91U448
Pressure of fuel to open the bypass valve ... 30 psi(205 kPa)(1) Bore in bearing (new) ... 4953 .0003 in.(12.581 0.008 mm) Diameter of shaft (new) ... 4937 .0001 in.(12.540 0.003 mm)(2) Depth of bore for gears (new) ... .3750 .0003 in.(9.525 0.008 mm) Width of gears (new) ... .3730 .0003 in.(9.474 0.008 mm)(3) Bore in gear (new) ... .4926 .0003 in.(12.512 0.008 mm) Diameter of shaft (new) ... .4914 .0003 in.(12.481 0.008 mm)