SCREW 2H9154 - Caterpillar

Torque to install relief valve for head end of lift cylinders ... 135 15 N m (100 11 lb ft)(1) 6J3672 Spring for check valve Length under test force ... 13.49 mm (.531 in)Test force ... 28 2 N (6.2 .5 lb)Free length after test ... 21.51 mm (.847 in)Outside diameter ... 11.68 mm (.460 in)(2) Relief valve for small section of main hydraulic pump. Pressure setting ... 17 500 340 kPa (2540 50 psi)Torque to install relief valve ... 80 4 N m (60 3 lb ft)(3) 3G3971 Spring for unloading stem: Length under test force ... 68.1 mm (2.68 in)Test force ... 156 12 N (35.0 2.8 lb)Free length after test ... 74.0 mm (2.91 in)Outside diameter ... 14.35 mm (.565 in)(4) 2J6089 Spring for relief poppet: Color Code ... Yellow stripeLength under test force ... 36.24 mm (1.427 in)Test force ... 301 15 N (67.6 3.4 lb)Free length after test ... 44.12 mm (1.737 in)Outside diameter ... 12.50 mm (.492 in)(5) Cut-in piston for unloading stem. Pressure setting [controlled by relief poppet (6)] ... 11 700 kPa (1700 psi)(6) Relief poppet for unloading stem. Pressure setting ... 14 500 kPa (2100 psi)