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9-47 9 5. Remove the cap screw and lock nut securing the rear arm to the idler arm. Account for the alumi- num axle and bushing assemblies. MS029A MS030 CLEANING AND INSPECTING NOTE: Whenever a part is worn excessively, 1. Closely inspect the rear arm/idler arm tubing and brackets for cracks or unusual bends. 2. Clean the bearings with a clean cloth. 3. Inspect each idler wheel for cracks or damage. 4. Inspect the bushings (located in the arm pivot area) for wear or damage. 5. Inspect all welds and the tubing of the upper arm for cracks or unusual bends. 6. Inspect the two adjusting cams for damage. 7. If a bearing must be replaced, use this proce- dure. 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. MS006A D. Install the snap ring making sure the “sharp side” is directed away from the bearing. MS007A E. Install the insert (if applicable). MS008 ASSEMBLING 1. Install the rear arm onto the idler arm with an aluminum axle, bushing assemblies, two cap screws (coated with blue Loctite #243), and a lock nut. Tighten only until snug. ! CAUTION Do not remove the bearing unless it is absolutely |