VALVE GP-BANK 7 1616737 - Caterpillar

Tilt the nozzle slightly down from the vertical position and remove pressure screw (4) and shims (5). If the shims do not come out of the nozzle, invert the nozzle and let the shims, spring and spring seat fall into the hand. If the valve comes out of its own weight, handle it carefully by its stem.4. To increase the opening pressure, add a 4N5730 Shim. The 4N5730 Shim is 0.13 mm (.005") thick and will increase the opening pressure approximately 1725 kPa (250 psi). A maximum of two shims can be added; if two shims do not increase opening pressure to specification given, discard the nozzle. 5. Assemble the nozzle, making sure the thickest shim (C) is against pressure screw (4). Put the nozzle in a vise using 8S2250 Nozzle Holding Tool (1). Tighten the pressure adjusting screw to 8.0-9.1 N m (70-80 lb in) torque.6. Remove the nozzle from the holding tool. Connect the nozzle, with the tip facing downward, to the tester. Point the nozzle tip into the 8S2270 Fuel Collector and the FT1384 Extension. Check the opening pressure and if it is not within specifications, repeat steps 4 and 5.Valve Lift Adjustment-9L7883 Nozzles
A. When the correct opening pressure is set, and while pumping test fluid through the nozzle, hold the lift adjusting screw locknut and slowly turn the lift adjusting screw clockwise (CW) until valve pressure rises 1380-3450 kPa (200-500 psi) above the nozzle opening pressure. Some test fluid may collect on the tip, but it must not flow at a rapid dribble.
Do not bend the valve by bottoming with too much force.
B. Back out the lift screw 3/4 1/8 turn, hold the lift adjusting screw, and tighten the locknut just enough so the screw will not turn; the lift is now set. C. Put the nozzle in a vise using 8S2250 Holding Tool (1). Tighten the locknut to 4.0-4.5 N m (35-40 lb in). Recheck valve opening pressure.Adjustment of 9L6969, 7N0449, 9N3299, 9N3700, 9N3979, 1W5829, 4W1819, 4W8483 and 7W3710 Nozzles
1. Put the nozzle in a vise using the 8S2250 Holding Tool (1). Loosen lift adjusting screw locknut (2). Turn lift adjusting screw (3) two full turns counterclockwise (CCW). 2. Hold lift adjusting screw (3) with a .08 mm (5/64") hex wrench (4) and remove locknut (2). Loosen locknut (5) that holds pressure adjusting screw (6). 3. Adjust VOP as follows:A. Install the nozzle on the 5P4150 Tester.B. Pressurize the nozzle.C. Turn pressure adjusting screw (6) clockwise (CW) to raise the VOP and counterclockwise (CCW) to lower the VOP. Each one-fourth of a turn will change the VOP approximately 1720 kPa (250 psi).4. Hold pressure adjusting screw (6) and tighten locknut (5) just enough to keep pressure adjusting screw (6) from turning. 5. Install locknut (2), but do not tighten at this time.6. Valve Lift Adjustment A. With valve opening pressure set correctly, pump test fluid through the fuel injection nozzle and hold locknut (2).B. Slowly turn lift adjusting screw (3) clockwise