SEAL GP 9Y1522 - Caterpillar

Type of pump: GearFor test, use SAE 10W oil at 65°C (150°F). Test at Full Speed:Output ... 76 liter/min (20 U.S. gpm) At a pressure of ... 690 kPa (100 psi)With pump at ... 2000 rpmWith engine at ... 2000 rpmOutput ... 72 liter/min (19 U.S. gpm) At a pressure of ... 6900 kPa (1000 psi)With pump at ... 2000 rpmWith engine at ... 2000 rpm Test at Half Speed:Output ... 38 liter/min (10 U.S. gpm) At a pressure of ... 690 kPa (100 psi)With pump at ... 1000 rpmWith engine at ... 1000 rpmOutput ... 34 liter/min (9 U.S. gpm) At a pressure of ... 6900 kPa (1000 psi)With pump at ... 1000 rpmWith engine at ... 1000 rpmTorque for pump mounting studs (not shown) ... 54 7 N m (40 5 lb ft)Torque for pump mounting nuts (not shown) ... 100 14 N m (75 10 lb ft)Flow Switch
(1) Torque needed to locate upper body ... 5 2 N m (42 18 lb in)(2) Torque for lower body ... 22 2.3 N m (190 20 lb in) Using wrench flats, rotate upper portion of switch until arrows line up with actual direction of flow.Diverter Valve
(1) 1L4418 Spring for check valves: Length under test force ... 37.1 mm (1.46 in)Test force ... 21.81 to 24.48 N (4.9 to 5.5 lb)Free length after test ... 96.0 mm (3.78 in)Outside diameter ... 20.6 mm (.81 in)(2) 7S8491 Spring for reversing spool: Length under test force ... 25.4 mm (1.00 in)Test force ... 19 2 N (4.3 .4 lb)Free length after test ... 41.2 mm (1.62 in)Outside diameter ... 30.18 mm (1.188 in)(3) 6D1601 Spring for diverter spool: Length under test force ... 40.4 mm (1.59 in)Test force ... 28 2 N (6.3 .5 lb)Free length after test ... 53.8 mm (2.12 in)Outside diameter ... 15.88 mm (.625 in)Shims:5J1036 thickness ... 0.79 mm (.031 in)6J3993 thickness ... 0.25 mm (.010 in)Pump Drive
(1) Torque for stud ... 54 7 N m (40 5 lb ft)(2) Torque for bolts ... 135 15 N m (100 10 lb ft)(3) End play for pinion ... 0.10 0.10 mm (.004 .004 in) The end play for pinion (3) is adjusted by using shims (4). Lubricate seal (11) lip lightly with lubricant being sealed. Before installing seal, coat bore surface in housing with sealant.(10) Torque for bolts ... 135 15 N m (100 10 lb ft)Pinion Preload Adjustment Procedure:
1. Install bearing cups in housing (9). Bearing cups must be seated against the shoulders in housing (9).2. Install the bearing cone next to the pinion teeth on pinion (8). Bearing cone must be seated against the shoulder on pinion (8).3. Lubricate bearing and install pinion (8) in housing (9). Lubricate and install bearing cone, key (6), gear (7) and nut (5).4. Position the assembly in a soft-jawed vise. Tighten the vise against the teeth on pinion (8).