Troy-Bilt C3X/D3X User Manual

For mulching grass, remove the grass catcher and allow the rear 

discharge door  to close the rear opening of mower. For effective 

mulching, do not cut wet grass. If the grass has been allowed to 

grow in excess of four inches, mulching is not recommended. Use 

the grass catcher to bag clippings instead.

You can use the grass catcher to collect clippings while you are 

operating the mower.
1. 

Attach grass catcher following instructions in the “Assembly & 

Set-Up” section. Grass clippings will automatically collect in 

bag as you run mower. Operate mower till grass bag is full.

2. 

Stop engine completely by releasing the blade control. Make 

sure that the unit has come to a complete stop.

3. 

Lift discharge door and pull grass bag up and away from the 

mower to remove the bag. Dispose of the grass clippings 

and reinstall the bag when complete.
NOTE: Make sure to clean any excess grass from around 

the rear opening of the mower, especially between the 

transmission cover and sidewall on the left hand side and 

along the bottom, to ensure tight fit of bag onto mower.

If you strike a foreign object, stop the 

engine. Remove wire from the spark plug, 

thoroughly inspect mower for any damage, and 

repair damage before restarting and operating. 

Extensive vibration of mower during operation is an 

indication of damage. The unit should be promptly 

inspected and repaired.