Husqvarna M 148 SV Operator's Manual page 86

Mulching function
M 148 SV is a lawn mower with mulching function.
R 148 SV can be used with mulching function in the following
way:
• Lift up the back shield and remove the container.
• Insert the mulching plug into the collector channel.
• Close the shield and ensure that it is locked with the
mulching plug.
86 –
English
STARTING AND STOPPING