CONTROL GP-RELAY ELECTRONIC 1069188 - Caterpillar

(1) Location of pressure tap for unloading valve for large section of pump.Pressure to open unloading valve: 7J6785 Valve ... 1400 25 psi(98,4 1,8 kg/cm2)7J100 Valve ... 1550 25 psi(109,0 1,8 kg/cm2)(2) 4F7115 Spring for unloading valve: Length under test force ... 1.34 in.(34,0 mm)Test force ... 54.4 4.3 lb.(24,7 2,0 kg)Free length after test ... 1.69 .06 in.(43,0 1,5 mm)Outside diameter ... .47 in.(11,9 mm)(3) Thickness of 3H2549 Shim ... .010 in.(0,25 mm) One shim will change pressure ... 47 psi(3,3 kg/cm2)(4) Location of pressure tap for relief valve for small section of pump. Pressure to open relief valve for small section of pump: 7J6785 Valve ... 1500 25 psi(105,5 1,8 kg/cm2)7J100 Valve ... 1700 25 psi(119,5 1,8 kg/cm2)(5) 4F7115 Spring for relief valve (631 and 637): Length under test force ... 1.34 in.(34,0 mm)Test force ... 54.4 4.3 lb.(24,7 2,0 kg)Free length after test ... 1.69 .06 in.(43,0 1,5 mm)Outside diameter ... .47 in.(11,9 mm)(5) 2J6089 Spring for relief valve (641, 651 and 657): Length under test force ... 1.43 in.(36,3 mm)Test force ... 67.6 3.4 lb.(30,7 1,5 kg)Free length after test ... 1.74 in.(44,2 mm)Outside diameter ... .49 in.(12,4 mm)(6) Thickness of 3H2549 Shim ... .010 in.(0,25 mm) One shim will change pressure (631 and 637) ... 57 psi(4,0 kg/cm2)One shim will change pressure (641, 651 and 657) ... 78 psi(5,5 kg/cm2)(7), (8) 4F7116 Spring for dump valve: Length under test force ... 1.97 in.(50,0 mm)Test force ... 15.50 1.25 lb.(7,0 0,6 kg)Free length after test ... 2.69 in.(68,3 mm)Outside diameter ... .62 in.(15,7 mm) (9) Pressure in steering cylinders with valve spool in NEUTRAL: 7J6785 Valve ... 195 45 psi(13,7 3,2 kg/cm2)7J100 Valve ... 115 35 psi(8,1 2,4 kg/cm2)(10) Shims to change pressure between steering cylinders. Maximum difference in pressure between steering cylinders ... 40 psi(2,8 kg/cm2)(11) Travel of valve spool ... 1.12 to 1.15 in.(28,6 to 29,4 mm)Torque for retainers for unloading valves and relief valve (four) ... 21 2 lb. ft.(2,9 0,3 mkg)Torque for bolts for relief valve to body of control valve ... 47 2 lb. ft.(6,5 0,3 mkg)