Toro 20330 Service Manual - Page 100

BBC / BOS / BCS 5. Hook the end of the control link into the brake plate lever, then slip the BBC control cable onto the bellcrank. Finally, slip the shoulder bolt through the hole in the cable bracket support and secure with the flanged nut. Note: The serrations in the flanged nut must fully seat on the control cable bracket. 6. Check the adjustment of the BBC cable as described under "BBC Cable Removal (Recycler/Rear Bagger)" on page 6-19. 7. Slide the black plastic transmission cover into place making sure that the belt slides into the grooves provided. Some contact between the belt and the cover may be evident. Note: It may be necessary to push the transmission back slightly to get the transmission cover to slide in completely. 8. Place the upper BBC cover into position on the housing and secure with the two self-tapping flanged head capscrews. 9. Check for proper operation of all controls, especially the BBC, and adjust as necessary. Note: The spring length on the bellcrank assembly is the primary indicator of proper BBC adjustment. It should measure 1" (25mm) with the blade engaged when properly adjusted. If spring measures more than 1-1/4" (32mm), correct by adjusting the BBC control cable. BBC Cover and Screen: The BBC cover and screen are two important components that keep dirt and debris out of the BBC mechanism. The screen (Fig. 168) is installed, sharp edge down, to allow air to be drawn in through the screen panel on top of the deck and down underneath the deck. This venting improves the airflow underneath the deck thereby improving quality of cut and bagging performance. Be sure to clean the screen on occasion, especially if quality of cut or bagging performance has degraded. A. BBC flywheel B. Brake drum Fig 168 MVC-000 C. Bearing block D. Screen 6-14 WPM Drive Systems Manual