MAINTENANCE & ADJUSTMENTS
Figure 25. Removing Old Nose Sprocket
3.Remove the new nose sprocket package's clips and fold back the top portion of the insertion card being careful not to remove or disturb the components. See Figure 26.
Figure 26. Preparing New Nose Sprocket
5.Insert 6 nose rivets into the holes and then hold them with your thumb. Remove the screwdriver and slide out the insertion card.
Note: On used bars the nose rails might tend to spread apart. Use a small clamp if necessary to hold the rails together.
6.With the bar and rivets solidly supported on a strong fl at steel surface, carefully peen the rivet heads down with the fl at end of a hammer. Be careful to only hit the rivet head. Do not hit the bar body; this will pinch the nose sprocket.
Rivet heads must completely fi ll the countersinks in the bar body and be snug and secure while still allowing the sprocket to freely turn. See Figure 28.
Figure 28. Replacing Rivets
4.With a fl at blade screw driver in the bar nose rails, slide the nose sprocket assembly into position aligning the 6 holes in the bar nose with the 6 holes in the nose sprocket assembly without removing the components from the card. See Figure 27.
7.Using a fl at fi le, shave the rivet heads to a uniform height that is as close to the bar body as possible. See Figure 29.
Figure 29. Filing Rivets
Figure 27. Installing a New Nose Sprocket
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