Most of the time if a mower hits a rock or snag and gets bent, folks toss it in the trash, but
the shaft can often be straightened
. To prep the mower, you remove the spark plug, disable the flywheel brake, tip it over (carburetor side up!), and remove the blade and adapter.
How do I know if my lawn mower shaft is bent?
Look at the Center Bolt
On a mower that doesn't have a bent crankshaft, you will hardly notice that center bolt move at all. However,
if you spin the blade and that center bolt is wobbling all over the place
, it's a sure sign that your lawn mower crankshaft is bent.
Can a bent shaft be repaired?
In an ideal bent shaft straightening process, the repair relaxes the stresses in the material fibers that initially caused the shaft to bend
. If the process restores the deformed shaft material fibers to their original state, prior to bending, the chances for a long-term successful outcome are good.
What do you do if your lawnmower is bent?
How do you fix a bent shaft?
How do you fix a bent lawn mower spindle?
How do you straighten an electric motor shaft?
How can I make my shaft straight?
With the heat method, heat from a torch is applied (sometimes in combination with peening) to straighten it
. The mechanical method uses a press that is applied to straighten the shaft to a more reasonable value, and then peening and/or heating may still be applied to fine tune it to within the allowable values.
Can a bent mower blade be fixed?
Luckily,
a bent blade by itself is easy enough to fix
. Just replace it! Don't attempt to straighten it yourself.
What happens when you go over a rock with a lawn mower?
Mower Damage
Hitting a rock with a lawn mower usually results in
dents and bent parts
. Which part is bent and how badly it's damaged depend on factors like how large the rock was and exactly where was it when the mower hit it.
What happens when a crankshaft is bent?
What Can a Bent Crankshaft do to My Engine? One of the biggest issues a bent crankshaft can cause is
excessive wear on your main bearings
. The bend decreases oil clearance and allows for the wear to occur.
Why do my mower blades keep bending?
Know your yard and any place in it where there are rocks or low lying stumps.
Hitting a stump can cause the blade to bend easily
. Combing through the yard before mowing to look for rocks and large sticks is a great way to avoid a bent blade. Baseballs can destroy a blade pretty easily.
When should I replace my mower blades?
You'll know that you need to sharpen your lawn mower blades when the tips of your grass are brown and ragged. When this happens, your grass becomes less capable of storing water and more susceptible to disease. Some lawn mower manuals suggest sharpening or replacing blades
after every 25 hours of use
.
How do you straighten a bent prop shaft?
How do you straighten a bent shaft with heat?
How do I know if my spindle is bent?
How do you fix a bent deck on a lawn mower?
How do you straighten a bent lawn mower blade?
- Step 1: Tools. …
- Flip the mower up on one side it's better to flip the mower so that the air filter is up so that gas or oil does not drain in to the air filter. …
- Step 3: Bend It. …
- Step 4: Hammer It. …
- Step 5: Sharpen It. …
- Step 6: Reattach the Blade. …
- 17 Comments.
How do you change a brushless motor shaft?
How do you tell if a shaft is straight?
What is a shaft straightener?
The shaft straightener was
used to gently bend prepared and heated wooden sticks to create an arrow shaft that would fly true
. It is a flattened round stone with a groove pecked in the flat surface. To create that groove, flintknappers use a percussive technique called pecking.
