Toro Walk Behind Mowers 21199HD 2018 Engine Guard Replacement

Grab the plastic housing at the end of the spark plug wire and pull firmly to disconnect it.

Chock the rear wheels to prevent the mower from rolling during service.

Lift up the plastic deflector.

While holding the deflector up and out of the way, lift the grass bag handle away from the mower to detach it.

Remove the grass bag.

Use a 3/8-inch socket to remove the four bolts securing the belt guard:

Three 1 inch-long recessed bolts

One 1 1/2 inch-long bolt

Pull the belt guard straight off the front of the mower to remove it.

Loosen, but don't remove, the belt tensioner to give the belt some slack.

Use a flathead screwdriver to pry off the plastic plug cap.

Remove the plug cap.

Use a 3/8 inch socket to remove the four bolts securing the upper belt guide to the pulley.

Remove the upper belt guide from the pulley.

Use a 1/2 inch socket to remove the left pulley bolt

Remove the pulley bolt and washer.

Remove the left pulley.

Remove the bushing from the pulley.

Lift the belt up and over the left sprocket.

Move the belt to the front of the mower, out of the way of the belt tensioner.

Spin the left sprocket, with the blade attached underneath, until it is in a safe position, then place the belt on the sprocket.

Spin both blades to ensure they don't touch during a 360˚ rotation.

Use a 3/8 inch socket to remove the two screws securing the belt guide.

Remove the belt guide.

Loosen the knob on top of the air cleaner cover, on the top side of the motor.

Lift the cover up and off of the air cleaner to remove it.

Remove the three metric bolts securing the engine guard:

Two 10 mm bolts

One 8 mm bolt

Remove the engine guard.