Troy-Bilt Horse Tiller Operation Manual - Page 39
Reverse Disc, Tines - bumper
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9. Push the belt forward then down until it is looped over the 3. lower pulley. See Fig. 7-2. Do not yet seat it in either of the lower pulley's grooves. NOTE: A blunt object, like a ruler, can help you push the belt downward if needed. 10. Move the top half of the belt up and over the rubber reverse disc, but do not seat it in either of the grooves in the top pulley. 11. Place the Wheels/Tines/PTO Drive Lever in NEUTRAL. 12. Move the top half of the belt into the HIGH Range groove, the groove closest to the engine, on the top pulley. See Fig. 7-5. Use a 9⁄16" wrench to loosen the mounting bolt shown in Fig. 7-6. Remember to immobilize the pulley with the wood wedge while loosening the bolt. If necessary, pry the disc from the pulley with the tip of a screwdriver. Back the bolt out as far as possible. Then angle the disc a little to remove it. Bring the bolt and lockwasher along with the disc. Installing a new Reverse Disc. OIL Mounting Bolt Drive Belt Reverse Disc Wood Wedge Figure 7-5 13. Move the bottom half of the belt into the HIGH Range groove of the lower pulley. If extra slack is needed, hold up Wheels/Tines/PTO Drive Lever while moving the belt. Verify the belt is seated properly on the pulleys. 14. To move the belt to the Low Range position. See Changing Belt Speed in the Operation Section. 15. After installing the belt, check and adjust for correct belt tension as explained previously. Reverse Disc Follow these steps to replace the reverse disc. If your tiller has a Bumper Attachment mounted, it must be removed first. 1. Move Wheels/Tines/PTO Drive Lever in NEUTRAL position. 2. Wedge a 5⁄16"-thick board between the top of the engine pulley and the cast iron housing next to it. This immobilizes the pulley. Avoid contacting the reverse disc. Figure 7-6 4. Do steps 1-through-3,in the opposite order to install the new reverse disc. 5. Tighten the mounting bolt securely, and check for correct operation - see the Maintenance & Adjustments section. Tines Inspect the tines for wear or damage after every 30 operating hours. The rate of wear depends upon the hours of use and soil conditions. With use, the tines get shorter, narrower and more pointed. See Fig. 7-7. Worn New Figure 7-7 Section 7 - Service 39