VALVE GP-RELIEF 3964900 - Caterpillar

Illustration 1 g01380662
Displacement per revolution ... 74 cc (4.5 in3)Pressure cutoff ... 21000 350 kPa (3050 50 psi)Margin pressure ... 2100 100 kPa (305 15 psi)The pump rotates in a counterclockwise direction when the pump is viewed from the shaft end.Maximum case drain pressure ... 200 kPa (29 psi)Test at Full Speed: Output ... 129.1 L/min (34 US gpm) Pressure ... 5000 kPa (725 psi) Pump speed ... 1760 rpm Engine speed ... 1785 rpm Case drain flow ... 1.2 L/min (0.3 US gpm) Output ... 126.1 L/min (33 US gpm) Pressure ... 20000 kPa (2900 psi) Pump speed ... 1760 rpm Engine speed ... 1785 rpm Case drain flow ... 4.2 L/min (1.1 US gpm)Test at Half Speed: Output ... 64.2 L/min (17.0 US gpm) Pressure ... 5000 kPa (725 psi) Pump speed ... 880 rpm Engine speed ... 890 rpm Case drain flow ... 0.9 L/min (0.2 US gpm) Output ... 62.5 L/min (16.5 US gpm) Pressure ... 20000 kPa (2900 psi) Pump speed ... 880 rpm Engine speed ... 890 rpm Case drain flow ... 2.7 L/min (0.7 US gpm) (1) Torque for four bolts ... 12 N m (106 lb in) (2) Torque for the plug ... 15 N m (133 lb in)
Illustration 2 g01380676
View A-A (3) 6E-4000 Spacer (C) 0.025 0.025 mm (0.001 0.001 inch)Grind spacer (3) in order to achieve dimension (C). The faces of the spacer should be parallel within 0.05 mm (0.002 inch).
Illustration 3 g01380686
View B-B (4) Torque for the cylinder ... 130 N m (95 lb ft) (5) Torque for two plugs ... 30 N m (22 lb ft) (6) Torque for the piston guide ... 130 N m (95 lb ft) 135-6616 Pump Control Valve
Illustration 4 g01380702
(7) Apply 4C-4030 Thread Lock Compound to the threads of two plugs prior to installation. (8) 6E-3275 Spring Length under test force ... 15.1 mm (0.59 inch) Test force ... 40.2 2.8 N (9.0 0.6 lb) Free length after test ... 20.5 mm (0.81 inch) Outside diameter ... 10.7 mm (0.42 inch) (9) 6E-3274 Spring Length under test force ... 14.4 mm (0.57 inch) Test force ... 81.7 14.5 N (18 3 lb) Free length after test ... 15.9 mm (0.63 inch) Outside diameter ... 7.7 mm (0.30 inch) (10) Torque for two nuts ... 21 N m (15 lb ft) (11) Torque for two nuts ... 21 N m (15 lb ft) (12) 6E-3276 Spring Length under test force ... 32.6 mm (1.28 inch) Test force ... 462 71 N (105 16 lb) Free length after test ... 35.6 mm (1.40 inch) Outside diameter ... 19.2 mm (0.76 inch) (13) 193-1036 Spring Free length ... 31.1 mm (1.22 inch) Outside diameter ... 8.3 mm (0.33 inch)