BLOCK 1205274 - Caterpillar

(1) Pressure tap (large section pump unloading valve). Unloading valve pressure setting (high idle engine speed) ... 1400 25 PSI(98,4 1,8 kg/cm2)(2) 4F7115 Spring-large section pump unloading valve: Length-test force applied ... 1.34 in.(34,0 mm)Test force ... 50.1-58.8 lb.(22,7-26,7 kg)Free length after test ... 1.70 in.(43,2 mm)Outside diameter ... .47 in.(11,9 mm)(3) 3H2549 Shim-thickness ... .010 in.(0,25 mm) Large section pump unloading pressure change-addition or removal of one shim ... 50 PSI(3,5 kg/cm2)(4) Pressure tap (small section pump relief valve). Relief valve opening pressure (high idle engine speed) ... 1500 25 PSI(105,5 1,8 kg/cm2)(5) 4F7115 Spring-small section pump pilot relief valve: Length-test force applied ... 1.34 in.(34,0 mm)Test force ... 50.1-58.8 lb.(22,7-26,7 kg)Free length after test ... 1.70 in.(43,2 mm)Outside diameter ... .47 in.(11,9 mm)(6) 3H2549 Shim-thickness ... .010 in.(0,25 mm) Pressure change to small section pump relief valve setting-addition or removal of one shim ... 40 PSI(2,8 kg/cm2)(7 & 8) 4F7116 Spring-dump valve: Length-test force applied ... 1.97 in.(50,04 mm)Test force ... 14.25-16.75 lb.(6,46-7,6 kg)Free length after test ... 2.69 in.(68,3 mm)Outside diameter ... .625 in.(15,88 mm)(9) Pressure at steering cylinders with spool in neutral (centered)-high idle engine speed ... 195 45 PSI(13,71 3,16 kg/cm2) Maximum steering cylinder pressure differential (left cyl.-right cyl.) ... 40 PSI(2,81 kg/cm2)(10) 3J9697 Shim-thickness ... .005 in.(0,13 mm) Steering cylinder pressure balance change-addition or removal of one shim ... 20 PSI(1,4 kg/cm2)(11) Spool travel ... 1.12-1.15 in.(28,4-29,2 mm)(12) Torque-bolts (pilot relief valve spring retainer) ... 21 2 lb. ft.(2,9 0,3 mkg)(13) Torque-bolts (pilot relief body-to-valve) ... 47 2 lb. ft.(6,5 0,3 mkg)