This quick 3 minute video produced by MTD will teach you how to inspect and replace lawn mower blade on a walk behind mower.
Knowing how to inspect your lawn mower blade could prevent serious injury.
Transcript Provided by YouTube
0:02 this video will show you how to inspect and replace the cutting blade on a walk
0:06 behind mower
0:07 depending on your model number the instructions in this video
0:11 might vary slightly a plate should be replaced if its chips or bent
0:16 or to warn to be sharpened make sure the replacement blade
0:20 meets all 00 a.m. specifications also
0:23 make sure you have the proper tools for this procedure because you’ll need to
0:28 turn the more on its side to change the blade
0:31 there’s the potential for spilled oil and fuel
0:34 to avoid this run the more intelligent out of gas
0:37 or drain the fuel tank using the Arnold siphon pump
0:41 to avoid burns use caution when working around a hot engine
0:45 if time allows let the engine cool down before you change the blade
0:51 first remove the spark plug wire to make sure the mower won’t
0:54 accidentally start tip them over on its side with the engine air filter facing
1:00 up
1:00 this will keep engine oil from getting into the carburetor in air filter
1:04 inspect the blade for wear or damage
1:08 you should check your cutting blade at least twice a season to make sure it
1:12 sharp
1:12 a dull blade will care rather than cut the grass
1:16 and can turn grass tips brown also
1:19 be sure to check the blade for damage anytime you strike an object
1:24 if you hit something and you’re more vibrates excessively afterward
1:28 have a servicing dealer check it for bed crankshaft or other damage
1:33 to begin use the Arnold blade removal tool
1:37 to hold the blade in place using the proper size socket
1:41 loosen the bolts securing the cutting blade to the engine drive shaft
1:46 some units may have two additional bolt securing the blade adapter to the blade
1:51 loosening them before you remove the blade from the unit
1:54 will make your job easier before the blade is removed
1:58 take note of its orientation you wanna make sure the replacement blade is
2:03 oriented the same way
2:04 with the fins pointed up remove the blade from the mower
2:08 and keep the blade adapter parts for the installation
2:11 the new blade if you simply need to sharpen your blade
2:15 instead of replacing it you can use the Arnold blade sharpener and balancer
2:20 assemble the new blade and blade adapter on the engine crankshaft
2:25 tighten the blade bolt to the proper torque setting as indicated
2:29 in your operators manual
2:34 take off the blade removal tool and return them over to the upright position
2:38 reconnect the spark plug wire and you’re good to go
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-Jack