Bbc Cover And Screen - Toro 20330 - Low Wheel Walk Power Mower Service Manual

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
fl anged nut.
Note: The serrations in the fl anged 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 fl anged
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.
6-14

BBC Cover and Screen:

The BBC cover and screen are two important com-
ponents 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 airfl ow 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 fl ywheel
B. Brake drum
Fig 168 MVC-000
C. Bearing block
D. Screen
WPM Drive Systems Manual