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