c.Replace any parts found to be unusually worn or damaged. If the yoke has rusted or corroded, repaint afterthoroughly cleaning; if badly rusted or corroded, replace the yoke. If chain links do not move freely, use apenetrating lube oil on the frozen links.4-13.3.3 Reassembly.a.Install the yoke bushings (17) in the yoke (18). Install the safety chain (15) and hose clamp (16). Install the lineguide (14). Install the yoke guides (10 and 11), yoke adjusting shims (12) and yoke guide shims (13) onto bothsides of the pulldown yoke, fastening with the two bolts (9), nuts (2), and lockwashers (3).b.Install the chain links (6) and chain connectors (7) to the chain (8). To attach the chain to the yoke, install thelong bolts (5), nuts (2), and lockwashers (3) on each side of the yoke. Install the chain guide (4) and fasten withthe two hex head bolts (1), nuts (2), and lockwashers (3).c.Perform any lubrication specified in the lubrication chart.4-14. MAINTENANCE OF CHAIN FEED DRIVE4-14.1 HydraulicMotor.4-14.1.1 Service Tools.a.Special tools required for maintenance are a shaft seal driver and an adapter extractor.b.The seal driver can be made from round stock machined as shown in Figure 4-35.c.The adapter extractor (p/n 322457 [32705]) may be purchased, or fabricated as shown in figure 4-35.Figure 4-35. Service Tools4-151
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