A power rake attachment is a noncorrosive vertical metal piece with rounded but sharp blades. The blades rotate when the mower is pushed. The attachment means a regular power can perform the same function as power raking machine. It can be removed when no blade is necessary. Attachment methods vary by model. Some models allow the user to adjust the distance of the blades to the ground.
Power raking can help thin out thatch from a lawn. Thatch is a layer of plant matter that gathers in between the dirt and grass. A heavy layer of thatch damages the lawn because air, water and nutrients can not reach the grass roots in the right amounts. Thatch is also a source of fungus. Light power raking brings the thatch up above the grass where it can be easily removed. Power rake attachments can also smooth out lawns with rough patches and debris, such as stones, and clean up muddy patches. Power raking can also help prepare the ground in a small area for grass seed.
Power raking attachments do have some disadvantages. The blades can dig deep into a lawn, ripping out healthy plants and grass and leaving bald spots. Blades on a power rake attachment might not be as durable as the blades on a power rake machine. Some models use plastic blades, and those blades can bend and break.
A power rake attachment does not work the same as a power rake machine. A power rake machine is set high so the blades do not dig deep into the grass. The attachment on the mower might sit low so the blades dig deep into the ground. Universal power rakes are also available in a range of sizes.