PLATE 2810497 - Caterpillar

Figure 163Install pinion shaft brake disc housing. Install brake disc. Make sure that the teeth on the brake disc align with the disc hub.
Figure 164Install the shims behind the housing. Put an inch/lb. (kgf m) torque wrench on the hub nut. Turn the pinion with the torque wrench. Make a note of the number shown by the wrench when the pinion begins to turn. Install two bolts in the brake housing and tighten them to the correct torque. Put the torque wrench on the hub nut again.Turn the pinion. Make a note of the number shown by the wrench when the pinion begins to turn. Compare the two measurements. The second measurement must be 15 to 25 lbs.-in. (0.17-0.28 kgf m, 1.69-2.82 N m.) greater than the first. Add or remove shims to change this measurement. Repeat this procedure until the measurement is correct. Remove two bolts holding the brake disc housing.
Figure 165Install new brake piston ring expander spring and piston ring on brake piston. Expander spring gap to be 180° from piston ring hook joint. Install new "O" ring on end cap. Install piston and end cap on brake disc housing. The dowel pins must protrude. 188-.250 in. (47.7 mm) beyond the lip of the cover.
Figure 166Install bolts and washers. Tighten to specified torque. (See torque chart.)
Figure 167Install the cover and the gasket for the pinion drive gear. Install bolts and washers.
Figure 168Tighten cover bolts to specified torque. (See torque chart.)
Figure 169Install the cable drum drive shaft inner bearing on shaft. Install drive gear on shaft with long hub of gear away from inner bearing. Install outer bearing on shaft and bearing to shaft retainer ring.