How to Change the Blade on a Troy-Bilt Walk Behind Mower

This video will show you how to replace the blade on this Troy-Bilt walk behind mower.  Depending on your model, the instructions in this video may vary slightly.  Always be sure to check your operator's manual for detailed instructions.


Step 1
Turn the mower off and make sure the engine is cool. Remove the ignition key. Disconnect the spark plug ignition wire.  Engage the parking break. Be sure the PTO lever is disengaged.

Step 2
Put the deck height lever in its highest position.

Step 3
Place a block of wood under the deck's edge for support then lower the deck to the wooden block.

Step 4
Remove the belt keeper from around the engine pulley by removing the self-tapping screw.

Step 5
Remove the belt from the engine pulley.

Step 6
Remove the bow tie clip from the left rear side of the mower deck and carefully remove the hanger rod.

Step 7
Repeat steps on right side of mower deck.

Step 8
Remove the bow tie clip on the deck stabilizer rod and slide the deck lift rod from the mounting bracket.

Step 9
Remove the wooden block.

Step 10
Remove the bow tie clip to release the PTO cable from the bracket, and release the tension spring from the idler arm.

Step 11
Slide the deck out from under the mower.

Step 12
Turn the deck over to expose the blades.

Step 13
Wearing gloves for protection, use the Arnold Blade Removal Tool to secure the blade.

Step 14
Remove the bolt that secures the blade to the spindle and remove the blade.

Step 15
Assemble the new blades on the engine spindle, and tighten the bolts to the proper torque as indicated in your operator's manual.

Step 16
Remove the Arnold Blade Removal Tool.

Step 17
Reassemble by following the previous directions in reverse order.

Step 18
Slide the deck back under the mower.

Step 19
Attach the tension spring to the idler arm, then insert PTO cable in the bracket. Insert bow tie clip.

Step 20
Slide the deck lift rod into the mounting bracket and insert the bow tie clip into the stabilizer rod.

Step 21
Attach the hanger rod and insert bow tie clips on the left and right side of the mower.

Step 22
Route the belt onto the engine pulley.

Step 23
Attach the belt keeper around the engine pulley by inserting the self tapping screws.

Step 24
Reconnect the spark plug ignition wire.