VALVE GP-CONTROL 4Z6189 - Caterpillar

Illustration 1 g00756110
When the shaft is viewed from the drive end of the piston pump, the shaft of the piston pump rotates in a clockwise direction.For the test, use SAE 10W oil at 65 °C (149 °F).Test at Full Speed: Output ... 37 L/min (9.8 US gpm) Pressure ... 690 kPa (100 psi) Rpm of the piston pump ... 2000 Rpm of the engine ... 2000 Output ... 37 L/min (9.8 US gpm) Pressure ... 6900 kPa (1000 psi) Rpm of the piston pump ... 2000 Rpm of the engine ... 2000For the test, use SAE 10W oil at 65 °C (149 °F).Test at Half Speed: Output ... 18 L/min (4.8 US gpm) Pressure ... 690 kPa (100 psi) Rpm of the piston pump ... 1000 Rpm of the engine ... 1000 Output ... 18 L/min (4.8 US gpm) Pressure ... 6900 kPa (1000 psi) Rpm of the piston pump ... 1000 Rpm of the engine ... 1000Capacity of the piston pump under the following conditions ... 40 L/min (10.6 US gpm) Pressure ... 6900 kPa (1000 psi) Rpm of the piston pump ... 2200Note: Use SAE 10W oil that is 43°C to 49°C (109°F to 120°F) for the test for pump capacity. (1) Torque for the four screws ... 23 2 N m (17 2 lb ft) (2) Install the washer with the square corner and the flat side toward the snap ring. (3) 4T-1916 Spring Test length ... 42.1 mm (1.66 inch) Test force ... 65.0 6.5 N (14.61 1.46 lb) Free length after the test ... 54.1 mm (2.13 inch) Outside diameter ... 18.4 mm (.73 inch) (4) Pressure setting for the Pressure compensator valve ... 16000 345 kPa (2320 50 psi) (5) 9T-4541 Spring Test length ... 24.2 mm (.95 inch) Test force ... 315 31 N (70.8 7.0 lb) Free length after the test ... 41.2 mm (1.62 inch) Outside diameter ... 27.8 mm (1.09 inch) (6) Torque for the four bolts ... 38 4 N m (28 3 lb ft)