BUCKET AS. 2802274 - Caterpillar

Figure 153Assemble the ring gear and hub. Install ring gear bolts. Tighten bolts 40 to 60 ft. lbs. of torque (5.53-8.29 kgf m, 54.23-81.35 N m.).
Figure 154Position the inner taper bearing on ring gear shaft. Install shaft and bearing in ring gear. Install outer bearing.
Figure 155Measure the distance from the inner race of the bearing to the end of the shaft. Make a note of this distance.
Figure 156Measure the distance from the face of the cover to the bottom of the bore. Make a note of this distance. Subtract the distance from the inner race to the end of the shaft from this distance. Subtract .005 inch (.1270 mm) from this difference.EXAMPLE: If the first distance in .740 in. (18.79 mm) and the second distance is .801 in. (20.32 mm) the difference is .061 in. (1.53 mm). Subtract .005 inch (.1270 mm) and the answer is .056 inch (1.42 mm). You need a shim with a thickness of .056 inch (1.42 mm).
Figure 157Install selected shims in cover.
Figure 158Assemble the ring gear cover to the shaft with bolts and washers. Tighten to specified torque. (See torque chart.)
Figure 159Use a cord and a scale to find the preload tension on the bearing. Wind a cord around the splines on the gear as shown. Fasten the end of the cord to a scale. Slowly pull the scale away from the gear. Make a note of the number shown by the scale when the assembly begins to rotate. The scale must show between 19.5 lbs. and 23 lbs. (8.8 and 10.4 kg). This equals 50-60 lbs.-in. (0.57-0.69 kgf m) preload tension on the bearing. If the scale shows less than 19.5 lbs. (8.8 kg) remove shims. If the scale shows more than 23 lbs. (10.4 kg) add shims.
Figure 160To check ring and pinion gear for proper tooth contact, paint ring gear teeth with a mixture of red lead and linseed oil. When ring and pinion gears are rotated, the red lead is squeezed away by the contact of the teeth, leaving bare areas the exact size, shape and location of the contacts. As a rule, painting about 10 or 12 teeth is sufficient for checking purposes.With new "O" ring installed on ring gear cover, position the ring gear cover on housing to cover studs leaving enough space to install ring gear cover to housing shims. Use the same shims or equivalent thickness shims that were removed at disassembly. Position shims under ring gear cover. Install cover with inspection hole plug in location shown (about 11 o'clock). Install bolts, washers and stud nuts. Tighten bolts and nuts to specified torque. (See torque chart.)
Figure 161Remove the check plug from the ring gear cover. Rotate the ring gear assembly in a clockwise direction until a bolt, rivet or counter sunk hole appears in the plug hole.
Figure 162Hold the pinion so it cannot move. Move the ring gear assembly in a clockwise direction until it stops against the teeth of the pinion. Fasten an indicator in