Blade Replacement Instructions for a Snapper Lawn Mower


To continue to cut your lawn properly with your Snapper lawn mower, it is important that you inspect your mower blades for signs of wear and damage. Damaged and worn blades can cause ripping or tearing of the grass blades, leaving your grass susceptible to some diseases. You should sharpen your blades during the mowing season once a month and replace the blades on your Snapper lawnmower at the first sign of wear.

Step 1

Drain the fuel from the fuel tank using a siphon hose and run the engine on the mower until it dies. Do not tip the lawnmower on its side to drain the tank as this could cause damage to the air filter and air intake system. Pull the spark plug wire off the spark plug located at the front of the engine.

Step 2

Tilt the mower up on its rear wheels and prop a piece of wood or a cinderblock beneath the mower to hold it in this position. Do not tilt the mower onto its side, with its spark plug or carburetor facing down as oil could drain into the air filter, causing the engine not to start.

Step 3

Remove the center bolt and the washer from the blade using an adjustable wrench. Turn the bolt clockwise to loosen and remove it. Lift the old blade off the blade hub that sits against the mower body and the mower drive belt beneath the mower.

Step 4

Install the replacement blade with the bent edges of the blade placed over the blade hub and facing the mower body. Replace the washer and center bolt, tightening counterclockwise with an adjustable wrench.

Step 5

Push the spark plug wire back on the spark plug and refill the fuel tank with fuel.

Things You'll Need

  • Siphon hose
  • Wood or cinderblock
  • Adjustable wrench


  • Snapper: Safety Instructions and Operator's Manual for Snapper
  • Briggs and Stratton: Maintenance and Repair Manuals
  • Lawn-Boy: Tips to Get Your Lawn Mower Ready for Winter Storage
  • All about Lawns: Lawnmowers Need Love, Too: Getting Ready for the Mowing Season
Keywords: mower blade replacement, snapper mower blade, blade replacement instructions

About this Author

Cecilia Harsch has been writing professionally since 2009. She writes mainly home improvement, health and travel articles for various online publications, including LIVESTRONG.COM and GardenGuides. She has several years of experience in the home improvement industry, focusing on gardening, and a background in group exercise instruction. Harsch received her Certified Nurses Assistant license in 2004. She attended Tarrant County College and studied English composition.