HOSE 5346942 - Caterpillar

The cable drum is supported in the winch case by bearings on the output ring gear and the brake housing. If either of these components is removed, and the drum is not supported externally as described above, the cable drum may come loose in the case. The cable drum weighs approximately 540 lb. (245 kg). Injury or damage to parts may occur if precautions are not taken.
DISASSEMBLY1. Remove the cable drum as described on pages 17 through 20 of this manual.2. Place the cable drum on a suitable work surface. The seals must be removed to gain access to the drum bearings. Next, remove the spiral retaining ring and the spacer ring from the drum. Inspect the drum bearings while installed in the drum. If scored, heat discolored or damaged in any other way, they should be removed and replaced. The bearings should only be removed if replacement is necessary as unintentional damage may occur during the removal process. 3. To remove the drum bearings, drive the bearing cones from the drum bore using a long, soft metal punch. Remove the inner bearing cups using a multi-jaw puller or by welding pulling lugs directly to the cups. Either method will destroy the bearing cups and require replacement. ASSEMBLY1. Chill the inner bearing cup in dry ice to shrink the diameter to aid installation. Install the bearing cup into the cable drum bearing bore. Use a .002 in. (.05 mm) feeler gauge to make certain the cup is fully seated against the drum barrel shoulder.2. Lubricate the bearing cones with winch oil and install into the bearing cup. The bearing cones will be back-to-back with the large end of the cones in contact with each other.3. Chill the outer bearing cup, as previously described, and install into the drum against the bearing cones. Take care during assembly to avoid damaging the bearing cage on the cone.4. Install the spacer ring, then the spiral retaining ring into the cable drum.5. Apply non-hardening sealing compound to the outside surface of the seal housing at installation. With the drum seal properly positioned in the drum bore, place a large steel plate over the seal for protection and press or drive it into place.6. Support the cable drum into place within the winch case. The wire rope anchor pocket is always located on the right hand (motor) side of the winch. Lubricate the bearing and seal contact surfaces of the output ring gear and brake housing.7. To maintain alignment, alternately install the ring gear and then the brake housing assembly into the cable drum bearings. The bearings have a snug slip-fit which requires extreme care during installation.8. Make sure all bolt holes are properly aligned before the ring gear and brake housing assembly enter the winch case pilot bore. Locate the lifting eye boss on the ring gear housing at the top-most position. Locate the brake release port on the brake housing in the upper LH quadrant, and the two-bolt motor mounting pattern