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9-36 4. Remove the cap screw and lock nut securing the rear arm to the slide rail. Account for the serrated FS083B NOTE: If applicable, note the mounting hole from which the rear arm was removed for assembly pur- AG560D 5. Remove the cap screw and lock nut securing the rear arm to the idler arm. Account for the alumi- AG477D AG561D CLEANING AND INSPECTING NOTE: Whenever a part is worn excessively, cracked, or damaged in any way, replacement is 1. Clean the bearings with a clean cloth. 2. Inspect each idler wheel for cracks or damage. 3. Inspect the bushings (located in the arm pivot area) for wear or damage. 4. Inspect all welds and the tubing of the upper arm for cracks or unusual bends. 5. Inspect the two adjusting cams for damage. 6. Rotate the idler wheel bearings (by hand) and check for binding or roughness. 7. If a bearing must be replaced, use this procedure. A. Remove the wheel insert (if applicable) and the snap ring. B. Using a hydraulic press, press the bearing out the inside of the wheel. C. Press the new bearing (on its outer race) into the idler wheel. ! CAUTION Do not remove the bearing unless it is absolutely |