MUFFLER & CONVERTER 2534438 - Caterpillar

Bearings that have snap rings should be installed with the snap ring next to the gear teeth.Install sprocket shaft with keyway on top.(1) Torque for the bolts that hold the drum to the flange (hand torque) ... 200 20 lb. ft.(270 25 N m)(2) Torque for the bolts that hold the bearing cage to the steering clutch case (hand torque) ... 200 20 lb. ft.(270 25 N m)(3) Torque for the nuts that hold the sprocket segments to the hub (with high pressure lubricant on the threads of the bolts) ... 250 50 lb. ft.(340 70 N m) Then turn an additional ... 120°(4) The dimension between the face of the flange and the shoulder of the pinion shaft after the flange has been pushed onto the pinion with a force of 35 to 40 tons (310 to 355 kN) ... .12 .03 in.(3.0 0.8 mm) A force of 50 to 55 tons (445 to 490 kN) is necessary to get this dimension on later assemblies.Torque of pinion shaft nut ... 800 to 1000 lb. ft.(1090 to 1350 N m)(5) Torque of nut ... 900 to 1200 lb. ft.(1220 to 1620 N m)(6) Distance from side of roller of bearing to shoulder of shaft ... 1.768 .032 in.(44.91 0.81 mm)(8) Torque for bolts that hold the sprocket shaft to the bevel gear case (hand torque) ... 550 55 lb. ft.(750 75 N m)(9) Distance from face of sprocket to shoulder of spline after pushing sprocket onto hub with a force of 85 to 90 tons (755 to 800 kN) ... .50 .06 in.(12.7 1.5 mm)(10) Torque for the bolts that hold the final drive case to the bevel gear and steering clutch case (hand torque) ... 325 10 lb. ft.(440 14 N m)(11) Maximum permissible amount the sprocket shaft can be bent ... .062 in.(1.57 mm) Measure at four places (every 90°) with shaft installed in machine.(12) Torque for six bolts (hand torque) ... 550 30 lb. ft.(750 40 N m)(13) Torque for three bolts (hand torque) ... 325 15 lb. ft.(440 20 N m)Adjustment of Bearing Preload:
Make certain all parts are clean. Put oil on bearings. Make certain nut (7) will turn freely on threads.1. Turn the sprocket and bearings while doing Steps 2 thru 6.2. Remove end play and put bearings into their seat by tightening nut (7) to a torque of ... 1400 lb. ft.(1890 N m)3. Loosen nut 1/2 turn.4. Tighten nut again to a torque of 100 lb. ft. (135 N m).5. Tighten nut again by turning it 72° (one mark on nut).6. Tighten nut as needed to put lock into position.