FLYWHEEL 9H3954 - Caterpillar

Illustration 1 g01142480
The rotation of the shaft is counterclockwise when the rotation of the shaft is viewed from the drive end.Type: Pressure Compensated Variable Displacement Piston Pump (1) Torque for the four screws ... 23 2 N m (205 20 lb in) (2) Install the washer with the square corner and the flat side toward the snap ring. (3) 9T-4541 Spring Free length after test ... 41.2 mm (1.62 inch) Outside diameter ... 27.8 mm (1.09 inch) (4) 4T-1916 Spring Length under test force ... 42.1 mm (1.66 inch) Test force ... 65.0 6.5 N (14.61 1.46 lb) Free length after test ... 54.1 mm (2.13 inch) Outside diameter ... 18.4 mm (0.73 inch)
Illustration 2 g02581597
(5) 4T-1909 Pressure Compensator Valve (7) tighten to ... 9 1 N m (80 8.9 lb in) Pressure setting ... 16000 345 kPa (2320 50 psi) (6) Torque for the four bolts ... 38 4 N m (28 3 lb ft)For the test, use SAE 10W oil that is at 46 3°C (115 5°F).Test at full speed: Output ... 32.2 L/min (8.5 US gpm) Pressure ... 690 kPa (100 psi) Pump speed ... 1710 rpm Engine speed ... 1600 rpm Output ... 31.8 L/min (8.4 US gpm) Pressure ... 6900 kPa (1000 psi) Pump speed ... 1710 rpm Engine speed ... 1600 rpmTest at half speed: Output ... 15.1 L/min (4.0 US gpm) Pressure ... 690 kPa (100 psi) Pump speed ... 855 rpm Engine speed ... 800 rpm Output ... 14.9 L/min (3.9 US gpm) Pressure ... 6900 kPa (1000 psi) Pump speed ... 855 rpm Engine speed ... 800 rpm
Illustration 3 g00013108
Cross-sectional view of (5) Pressure Compensator ValvePressure setting for the pressure compensator valve ... 16000 345 kPa
(2320 50 psi) (1) 3G-5423 Spring Test length ... 34.1 mm (1.34 inch) Test force ... 560 60 N (125 13 lb) Free length after test ... 39.9 mm (1.57 inch) Outside diameter ... 16.1 mm (0.63 inch) (2) Torque for nut ... 9 1 N m (80 9 lb in)Note: When you tighten nut (2), hold setscrew (3).