Toro 78555 Operator's Manual page 26

Bagging Wet Grass
If possible, always try to cut grass when it is dry. Wet
grass can cause plugging.
Reducing Plugging
To avoid plugging the bagging system, reduce ground
speed and mow the grass at a high height-of-cut, then
lower the mower deck to your normal cutting height
and repeat the bagging process.
Signs of Plugging
As you are bagging, a small amount of grass clippings
normally blow out the front of the mower deck. An
excessive amount of clipping blowout indicates that
the bagger is full or the tube is plugged.
Bagging Blades
In most mowing conditions, the standard high lift
blades will provide the best bagging performance.
The Toro Atomic blade is recommended for bagging
leaves in dry conditions. In dry dusty conditions, the
medium lift or low lift blades will reduce dust and dirt
blowout while providing effective bagging air flow.
Contact an Authorized Service Dealer for the proper
blades for different mowing conditions.
Curb Climbing and Loading
Always lift the deck to the highest position when loading
the machine on trailers or ascending/descending a
curb. Leaving the mower deck in a lower position
can cause damage to the mower deck while loading
and going over a curb. If a curb is higher than 152
mm (6 inches), cross it at a sharp angle with the deck
fully raised. Use extreme caution when loading onto
a trailer.
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