BRACKET AS 2482949 - Caterpillar

(1) Torque for bolts holding gear to impeller drive shaft ... 75 10 lb. ft.(100 14 N m)(2) Torque for bolts holding fan drive to cylinder block ... 32 5 lb. ft.(43 7 N m)(3) Torque for bolts holding shield to turbine ... 108 36 lb. in.(12.2 4.1 N m)(4) Torque for bolts holding cover to housing ... 32 5 lb. ft.(43 7 N m)(5) Torque for bolt holding adapter to shaft ... 150 20 lb. ft.(205 25 N m) Hit bolt with hammer and again tighten bolt to ... 150 20 lb. ft.(205 25 N m)(6) Bore in the bearing for the impeller drive shaft ... 2.6250 .0019 in.(66.675 0.048 mm) Diameter of the bearing surface of the impeller drive shaft ... 2.6215 .0005 in.(66.586 0.013 mm)Clearance between the bearing and the bearing surface ... .0035 .0024 in.(0.089 0.061 mm)(7) Bore in the bearing of the impeller drive shaft ... 1.5020 .0019 in.(38.151 0.048 mm) Diameter of the bearing surface of fan drive shaft ... 1.4985 .0005 in.(38.062 0.013 mm)Clearance between the bearing and the bearing surface ... .0035 .0024 in.(0.089 0.061 mm)(8) Minimum permissible clearance between end of impeller drive shaft and shoulder of fan drive shaft ... .034 in.(0.86 mm)(9) Clearance between impeller and turbine ... .124 to .178 in.(3.15 to 4.52 mm)(10) Bore in cover for turbine shaft ... 1.7515 .0019 in.(44.488 0.048 mm) Diameter of bearing surface of turbine shaft ... 1.7480 .0005 in.(44.399 0.013 mm)Clearance between the bearing and the bearing surface ... .0035 .0024 in.(0.089 0.061 mm)(11) Diameter of small oil hole in turbine shaft ... .125 .010 in.(3.18 0.25 mm)(12) Diameter of hole in shield ... .101 .001 in.(2.57 0.03 mm)(13) Minimum thickness of thrust washer which must be engaged with (overlap) shoulder of cover ... .019 in.(0.48 mm)(14) End play for fan drive shaft ... .033 .024 in.(0.84 0.61 mm) Operating Specifications: Temperature of engine coolant must be above 185° F (85° C) or the charging valve must be fully open or removed.With engine at 2000 rpm (full load speed): Temperature of engine oil ... 190 10° F(88 6° C)Minimum pressure of engine oil to fan drive with SAE 30 oil ... 45 psi(310 kPa)Approximate flow of oil through fan drive ... 2 U.S. gpm(7.5 litre/min)Fan drive must have 8S4180 blower fan.Speed of fan (after 5 minutes at full load speed) ... 1520 15 rpm