CS-431C, CP-433C and CS-433C Vibratory Compactors Vibratory System Caterpillar

Illustration 1	g00468228
Components of the Drum Support (1) Seal. (2) Boot. (3) Bearing cone. (4) Bearing cone. (5) Washer. (6) Lockwasher tang. (7) Locknut. (8) Spindle. (9) Hub. (10) Bearing cup. (11) Bearing cup. (12) Pipe plug. (13) Spacer.

Tightening Procedure for the Spanner Nut

1. Install the seal boot (2) and the bearing cups (10) and (11) onto the hub (9) .

2. Install the bearing cone (3) into the cup (10). Position the seal spring toward the bearing cone. Install lip type seal (1). Ensure that the lip type seal is flush with the end of the hub. The seal spring must be located to the inside of the hub.

   Note: The bearing should be clean and dry of all lubrication oil. The rolling torque reading will be affected if oil is on bearing assembly.

3. Rest the spindle on the flange end. Lower the hub (9) carefully onto the spindle shaft. Ensure that the bearing cone (3) contacts the shoulder of the spindle. Squeeze the small end of the bearing cone. Press the cone onto the shaft.

4. Measure the rolling torque of the assembly. This is the initial value.

5. Press the bearing cone (4) onto the spindle (8) with a slight play of the bearing. The bearing end play should measure .08 to .13 mm (0.003 to .005 inch).

6. Press the inboard cone (4) until the rolling torque increases 1.13 to 1.70 N·m (10 to 15 lb in). This torque should be higher than the torque measured in step (4). Back off the cone, if the increase in the torque is greater than 1.13 to 1.70 N·m (10 to 15 lb in). In order to back off the cone, you need to tap the end of the spindle.

7. Apply 4C-9507 Retaining Compound to the locknut (7). Install the washer (5), the lock washer (6), and the locknut (7) .

8. Tighten locknut (7) to 375 N·m (277 lb ft). Rolling the locknut will seat the bearings. The assembly should have no end play. Check the rolling torque. The torque must increase 1.13 to 4.52 N·m (10 to 40 lb in) more than the rolling torque measurement in step (4). This will result in a bearing preload of .025 to .050 mm (0.001 to .002 inch).

9. Tap the end of the spindle and check the rolling torque again. If the rolling torque reading is different, tighten the locknut (7) again.

10. Bend the lockwasher tang (6) into the slot on the locknut. Check the tab on the washer. The tab must align with the locknut. Tighten the tab with the locknut in order to align.

11. .Install the pipe plug (12) and apply 9S-3263 Thread Lock Compound .

12. Install the spacer (13) and the O-ring.