HARNESS AS 4371712 - Caterpillar

(1) Bore in connecting rod for piston pin bearing ... 41.288 0.013 mm (1.6255 .0005 in.) Connecting rod must be heated for installation of piston pin bearing. Do not use a torch.Heat connecting rod to temperature of (maximum) ... 260° C (500° F) Piston pin bearing junction and locating notch must be assembled in the top half of rod eye. Bearing junction can be located at either position "A" above centerline.Make reference to Special Instruction Form SMHS7295 for use of pin bearing removal and installation tools and procedure.(2) Bore in connecting rod for bearing with nuts tightened to 22 2 N m (16 1 lb. ft.) with an additional turn of 60° 5° ... 74.722 0.013 mm (2.9418 .0005 in.)(3) Distance between center of bearings ... 200.66 0.03 mm (7.900 .001 in.)(4) Bore in bearing for piston pin (new) ... 38.125 0.008 mm (1.5010 .0003 in.) Diameter of piston pin (new) ... 38.097 0.005 mm (1.4999 .0002 in.)Maximum permissible clearance between bearing and piston pin (worn) ... 0.08 mm (.003 in.)(5) Bore in bearing for crankshaft bearing surface (journal) ... 69.97 0.03 mm (2.753 .001 in.) Clearance between bearing and crankshaft bearing surface (journal) ... 0.046 to 0.137 mm (.0018 to .0054 in.)Maximum permissible clearance between bearing and crankshaft bearing surface (journal) ... 0.18 mm (.007 in.)(6) Tightening procedure for connecting rod bolts: a. Put 2P2506 Thread Lubricant on bolt threads and contact surfaces of nut and cap.b. Tighten both nuts to ... 40 7 N m (30 5 lb. ft.)c. Put a mark on each nut and end of bolt.d. Tighten each nut from mark ... 60 5°Make reference to Special Instruction Form Nos. GMG02394 & SMHS7366 for information about checking and reconditioning connecting rods.