Service manual

8-3WPM Drive Systems Manual
SELF-PROPEL BELT REPLACEMENT
The Zone Start models use a basic self propel system.
See Transmission Remove and Replace, page 3-19,
which also explains the belt replacement process.
Part of the blade clutch must be disassembled to access
the self propel belt. See the BBC section starting on
page 6-1 for more information.
21” Toro and Lawn-Boy Mowers with Blade
Brake Clutch
Part of the BOS or BCS must be removed to replace the
self propel belt. (See page 6-18 for more information.)
The Lawn-Boy Insight has a black access cover just to
the rear of the engine on top of the chassis. Remove it
for easy access to the top of the transmission.
21” Toro Mowers with Blade Override
System and Lawn-Boy Mower with Blade
Clutch System
21” Lawn-Boy Insight Mowers