Troy-Bilt CS 4265 Service Manual - Page 4

Chipper / Shredder Servicing 2.3. Pivot the shredder screen upward as instructed under the heading - Cleaning the Reduction Chamber. 2.4. Remove the chipper chute support brace from the frame by removing the two hex bolts and saddle washers which secure it. See Figure 2. 2.6. Rotate the impeller by hand until one of the two chipper blades is visible through the impeller housing opening. See Figure 4. Impeller Chipper Blade Support Brace Hex Bolts Figure 2 2.5. Remove the chipper chute by removing three hex nuts and washers, which secure it to the impeller housing. See Figure 3. Chipper Chute Hex Nuts Figure 3 Figure 4 2.7. Remove the blade by removing the internal hex screws, lock washers and hex nuts, which secure it to the impeller. NOTE: Use a 3/16" hex key (Allen) wrench on the outside of the blade and a 1/2" box (or socket) wrench on the inside of the impeller. Hold the Allen wrench stationary and rotate the box (or socket) wrench to loosen the nut. 2.8. Install a replacement blade (Part No. 742-0544) with the hardware removed earlier. IMPORTANT: Make certain blades are reassembled with the sharp edge outward (toward the chipper chute). Torque hardware to between 20 ft-ibs and 25 ft-ibs. 2.9. To replace the other blade, rotate the impeller to expose the second blade and repeat steps 2.7 through 2.8. 3. REPLACING THE SHREDDER BLADE WARNING: The impeller's shredder blade is sharp. Wear leather work gloves to protect your hands. 3.1. Stop the engine and make certain that all moving parts have come to a complete stop. 2