CYLINDER A. 4K2391 - Caterpillar

Illustration 1 g00732304
Illustration 2 g00732405
(1) 1U-2816 Spring Length under test force ... 14.7 mm (0.579 inch) Test force ... 192 14 N (43.1 3.1 lb) Free length after test ... 29.7 mm (1.17 inch) Outside diameter ... 29.65 0.52 mm (1.167 0.021 inch) (2) Torque for the four bolts ... 359 4 N m (265 3 lb ft) (3) Torque for the three bolts ... 55 7 N m (40 5 lb ft)The rotation of the shaft is counterclockwise when the pump is viewed from the drive end.For testing purposes, use SAE 10 oil at 65°C (150°F).Cover End Section (Pilot and Braking)
Test at Full Speed: Output ... 23 L/min (6.08 US gpm) Pressure ... 690 kPa (100 psi) Pump speed ... 1953 rpm Engine speed ... 2100 rpm Output ... 23 L/min (6.08 US gpm) Pressure ... 6900 kPa (1000 psi) Pump speed ... 1953 rpm Engine speed ... 2100 rpmTest at Half Speed: Output ... 12 L/min (3.17 US gpm) Pressure ... 690 kPa (100 psi) Pump speed ... 977 rpm Engine speed ... 1050 rpm Output ... 12 L/min (3.17 US gpm) Pressure ... 6900 kPa (1000 psi) Pump speed ... 977 rpm Engine speed ... 1050 rpmCenter Section (Steering)
Test at Full Speed: Output ... 175 L/min (46.2 US gpm) Pressure ... 690 kPa (100 psi) Pump speed ... 1953 rpm Engine speed ... 2100 rpm Output ... 173 L/min (45.7 US gpm) Pressure ... 6900 kPa (1000 psi) Pump speed ... 1953 rpm Engine speed ... 2100 rpmTest at Half Speed: Output ... 87 L/min (23.2 US gpm) Pressure ... 690 kPa (100 psi) Pump speed ... 977 rpm Engine speed ... 1050 rpm Output ... 86 L/min (22.7 US gpm) Pressure ... 6900 kPa (1000 psi) Pump speed ... 977 rpm Engine speed ... 1050 rpmDrive End Section (Implement)
Test at Full Speed: Output ... 340 L/min (90 US gpm) Pressure ... 690 kPa (100 psi) Pump speed ... 1953 rpm Engine speed ... 2100 rpm Output ... 336 L/min (89 US gpm) Pressure ... 6900 kPa (1000 psi) Pump speed ... 1953 rpm Engine speed ... 2100 rpmTest at Half Speed: Output ... 171 L/min (45.2 US gpm) Pressure ... 690 kPa (100 psi) Pump speed ... 977 rpm Engine speed ... 1050 rpm Output ... 169 L/min (44.7 US gpm) Pressure ... 6900 kPa (1000 psi) Pump speed ... 977 rpm Engine speed ... 1050 rpm