BEARING-SLV-YM 4509166 - Caterpillar

The idler shaft group and freespool components, which include the first reduction gear, second reduction pinion and freespool linkage, are located on the LH side of the winch, when viewed from the rear.Removal
Drain the oil from the winch as described in the :Preventative Maintenance" section of this manual.Remove two capscrews (7) and the lock plate (13) from the idler shaft bearing carrier (12) and adjuster assembly.Remove the four capscrews securing the idler shaft bearing carrier and adjuster assembly to the winch. Use two (2) of these capscrews as jackscrews, and remove the carrier and adjuster assembly, (Use 1/2-13 tap to clean paint from jackscrew holes.)Note the location of the two long capscrews.Inspect the bearing cup and cone. Replace as required.Turn the adjuster (6) counter-clockwise (CCW) and remove it from the bearing carrier. Remove and discard the O-ring (14) from the carrier.Remove the capscrews from the large diameter second reduction shaft bearing carrier cover, and carefully remove the cover. There are two jackscrew holes in the cover. With a suitable lifting fixture or sling, remove the second reduction drum drive gear and shaft assembly from the winch case. The gear and shaft assembly weight is approximately 155 lb (70 kg).Remove the freespool hose from the cylinder.Remove the cylinder rod capscrew (20), spring (18) and retainer washer (19) from the winch case.Rotate the cylinder assembly (15) around the clutch collar (11) toward the case wall opening and remove it from the winch case.You may remove the cylinder stud (17) from the winch case, as required. Together, remove the second reduction pinion (9) and first reduction gear (10) from the winch case. Press the pinion from the gear and bearings.Inspect the bushing (8) in the first reduction gear for scoring or excessive wear. The bushing should fit freely over the pinion. Inspect the bearing cup in the inner case wall and replace as required.Freespool Cylinder Assembly Service
Remove the capscrew (20), retainer washer (27), springs (23) and spring guides (26).Remove the cylinder rod (20) from the cylinder (21).Inspect the sealing surfaces for scoring or other abnormal wear and replace components as required. Use new O-rings (24, 24) when reassembling.Apply Loctite 242, or equivalent, to clean, dry threads of the capscrews during reassembly.Assembly
Place the second reduction pinion on a flat surface with the small diameter end facing upward.Lubricate the bushing and mating surfaces of the second reduction pinion with new winch oil, and install the bushing over the pinion.Install the freespool clutch collar over the first reduction gear with the beveled side of the collar facing down toward the large end of the pinion.Lubricate the outside diameter of the bushing and the first reduction gear bore with new winch oil. Install the first reduction gear and clutch collar assembly over the bushing, aligning the second reduction pinion teeth with the splined collar teeth. The clutch collar MUST be installed with the chamfered edge toward the pinion.Install the thrust washer (5) over the second reduction pinion and into the recess of the