TIP- 4755478 - Caterpillar

9J1072 Relief valve, pressure setting ... 2525 + 25 or - 0 psi(177.5 + 1.8 or - 0 kg/cm2) (17 425 + 172 or - 0 kPa)At a flow of ... 15 U.S. gpm56.8 litre/min)Pressure to open poppet valve ... 1900 100 psi(133.6 7.0 kg/cm2) (13 110 690 kPa)(1) 7J5979 Spring for ejector spool: Length under test force ... 1.19 in.(30.2 mm)Test force ... 30.5 3.5 lb.(135.7 15.6 N)Free length after test ... 1.78 in.(45.2 mm)Outside diameter ... 1.01 in.(25.6 mm)(2) 7J6449 Spring for bowl spool: Length under test force ... 1.12 in.(28.4 mm)Test force ... 20 1 lb.(89.0 4.5 N)Free length after test ... 1.83 in.(46.5 mm)Outside diameter ... 1.13 in.(28.7 mm)(3) 3G1597 Spring. (4) 7J6578 Spring for poppet valve: Length under test force ... .70 in.(17.8 mm)Test force ... 7.45 .37 lb.(33.1 1.7 N)Free length after test ... .84 in.(21.3 mm)Outside diameter ... .19 in.(4.8 mm)(5) Torque for four bolts ... 10 to 13 lb.ft.(14 to 18 N m)(6) Torque for retainer ... 5 to 8 lb.ft.(7 to 11 N m)(7) 7J6577 Spring for plunger: Length under test force ... 1.31 in.(33.3 mm)Test force ... 17 lb.(75.6 N)Free length after test ... 1.50 in.(38.1 mm)Outside diameter ... .31 in.(7.9 mm)