Troy-Bilt CS 4265 Service Manual - Page 6

Chipper / Shredder Servicing IMPORTANT: If sharpening the blade for reuse, follow the original angle of grind as a guide. Make certain each cutting edge receives an equal amount of grinding to prevent an unbalanced blade. Remove metal from the heavy side until it is balanced evenly. See Figure 9. Hex Nut Lock Washer 4.4. Remove the four hex cap screws securing the tube support to the frame assembly. See Figure 10. Machine Screw Flat Washer Lock Washer Hex Cap Screw Shredder Blade Figure 9 IMPORTANT: When reassembling the blade, tighten center bolt to between 45 ft-lbs and 60 ftlbs and the two out bolts to between 20 ft-lbs and 25 ft-lbs. 4. IMPELLER REMOVAL NOTE: You will need a special removal tool, part number 753-0638 to remove the impeller from the engine crankshaft. 4.1. Stop the engine and wait until all moving parts have come to a complete stop. 4.2. Disconnect the spark plug wire and keep it away from the spark plug. WARNING: The muffler and surrounding area will be hot if the engine has been running. Use caution and protect your hands if working near the muffler. 4.3. Follow the directions in section three to remove the impeller housing and shredder blade. Tube Support Hex Cap Screws Figure 10 NOTE: Support the frame after removal of the support tube. 4.5. Remove all of the hex cap screws securing the outer flail housing assembly to the inner housing. Remove the outer housing. See Figure 11. Perimeter Hex Cap Screws Figure 11 4