RADIATOR GP 1W8854 - Caterpillar

Illustration 1 g01334840
108-6428 Relief Valve (1) Torque for the nut ... 50 7 N m (37 5 lb ft) (2) Torque for the valve body ... 65 5 N m (48 4 lb ft) (3) 4T-4942 Spring Length under test force ... 54.3 mm (2.14 inch) Test force ... 1246 100 N (280 22 lb) Free length after test ... 63.2 mm (2.5 inch) Outside diameter ... 15.75 mm (0.620 inch) (4) Lubricate the bore with the lubricant that is being sealed.For testing purposes, use oil at 49 3°C (120 5°F)Flow rate ... 160 5 L/min (42 1 US gpm)4T-4162 Relief Valve and 4T-2742 Relief Valve (1) Torque for the nut ... 50 7 N m (37 5 lb ft) (2) Torque for the valve body ... 65 5 N m (48 4 lb ft) (3) 4T-2741 Spring Length under test force ... 58.7 mm (2.31 inch) Test force ... 240 20 N (55 4 lb) Free length after test ... 61 mm (2.4 inch) Outside diameter ... 15.75 mm (0.620 inch) (4) Lubricate the bore with the lubricant that is being sealed.For testing purposes, use oil at 49 3°C (120 5°F)Flow rate ... 38 4 L/min (10 1 US gpm)
Illustration 2 g00897401
Table 1
Line Relief Valves (1)    
Relief Valve     Location    
Tilt cylinder (rod end)     A    
Tilt cylinder (head end)     B    
Auxiliary cylinder (rod end)     C    
Auxiliary cylinder (head end)     D    
( 1 ) For the part number and pressure setting of the line relief valves, refer to the specifications that follow.Note: The 108-6428 Relief Valve, 4T-2742 Relief Valve and the 4T-4162 Relief Valve preset pressures have changed for this application. Ensure the 108-6428 Relief Valve, 4T-2742 Relief Valve and the 4T-4162 Relief Valve are set to the following pressures. (A) 4T-4162 Relief Valve Pressure setting ... 13790 345 kPa (2000 50 psi) (B) 108-6428 Relief Valve Pressure setting ... 23785 345 kPa (3450 50 psi) (C) 4T-2742 Relief Valve Pressure setting ... 23785 345 kPa (3450 50 psi) (D) 4T-4162 Relief Valve Pressure setting ... 23785 345 kPa (3450 50 psi)