Craftsman

Experienced gardeners share their insights in answering this question :
I think all you can do is adjust the deck. That would be with the 4 wheels around the outside of deck. And posibly the linkage from mower to deck. One side is adjustable. But I think I know what you are talking about. One of the blades is cutting deeper? Or the outside edge is lower than the other side?

First of all tire pressure is number one on even cuts.
Next If it is one blade then it could be bent or the bearing could be going out on it. Check them out by shaking em to see if it wobbles. Or could be the deck bent. If none of these are right. Then you can take the bearing assymbly off and adjust them individualy using washers in betweent the jack shafts and deck.

How to Identify and Fix Common Gardening Problems ?

We provide a variety of viewpoints on how to identify and fix common gardening problems. Our sources include academic articles, blog posts, and personal essays from experienced gardeners :

Dual-lever, 6 position height adjustment makes it easy to change cutting heights from 1.25″ to 3.75″ high.
The top setting for most mowers gives a cutting height between 3.25 and 4 inches. This is best for your lawn, but at a setting of 4 inches you may sometimes see some “laying-over” of turf blades that some people find undesirable. For this reason, some people prefer to mow at 3 or 3.5 inches.
Lowering Lawn Mower Blades

Riding mowers usually have their height adjustment levers or knobs on the left side by the seat. Simply pull the lever toward the back or turn the knob counterclockwise. Whenever you are adjusting lawn mower blade height levers, be sure that they lock into position before proceeding.

Sharpening or replacing the mower blades is also the answer if grass tips look ragged or tattered instead of cleanly cut. Blade vibration also causes an uneven cut. To eliminate vibration, replace unbalanced blades and worn mandrels. Replace a worn blade belt because a worn belt won`t spin the blades correctly.
For the first mow of the season, it is better to lower your deck height to about 1.5”. This will help clean up the dead grass as well as allow more light to shine through and really get your lawn to come out of dormancy. After the first cutting of the season, you can raise your deck height to 2-2.5”.
Blade Bolt Torque: 27-35 Ft. Lbs.
Some say the blade should be no more than an 1/8 inch above the cutting surface while others say the blade should rise to the bottom of the gullet (the space between the teeth). Some say one height prevents more kickbacks and minimizes tearout.
Tip the mower up and rest it on a block of wood so you can access the underside of the deck. Measure the distance from the blade to the bottom of the deck. Add the gap from the ground to the bottom of the deck to the distance from the blade to the bottom of the deck you have the height of cut.
For most effective results, a lawn mower deck should have a pitch, or height difference of 1/8-inch to 1/2-inch between the front of the deck to the back of the deck.
Mower blades should be aggressively sharp, but not as sharp as a razor`s edge. You should be able to touch the blade with your hand without getting cut. Contrary to popular belief, a lawn mower blade with a razor sharp edge will not cut grass better.
Unless your blade is really old, the side with the cutting edge will be visibly sharper and shinier than the other side, which will have a dull and blunt edge. The side of the blade with the blunt edge should always face upwards towards the lawn mower`s deck.
Lowering Lawn Mower Blades

Riding mowers usually have their height adjustment levers or knobs on the left side by the seat. Simply pull the lever toward the back or turn the knob counterclockwise. Whenever you are adjusting lawn mower blade height levers, be sure that they lock into position before proceeding.

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

I would like to replace the mulching blades on my Sears Craftsman riding mower with regular cutting blades. I can find plenty of sources for new mulching blades, but not cutting blades. My mower is a model 917.259541 tractor and the blades currently on it are part #134149. I want to make sure I get the right size to replace them. Also, is there a source for a bagging system for this mower, that won’t cost as much as one from Sears?
ANSWER : The straight blade for the 42 inch mower is 138971.They cut better and are easier to sharpen and you will need them if you use a gass catcher. If you do not want to use sears for parts you may be able to find good deals on ebay.

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BLADES KEEP TURNING AFTER DISENGAGING
ANSWER : The cable needs lubricated with wd40 so it will slide properly.

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Craftsman riding mower lt-1000 leaks gas – Craftsman 17.5 hp 42 in. Deck Lawn Tractor – CA Model
ANSWER : Need to fix that. it may be a fire hazard.

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Mower cranks and runs smooth until i try to engage blades or put mower in gear. it then stalls out
ANSWER : The seat switch is not making. You can start the mower but if you try to move it or cut, the switch is acting as if there is no operator present. Find it under the seat.

Gary

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I need to get the blade of the lawn mower sharpened.Any tips on how to disconnect the blade fropm the lawn mower?
ANSWER : There is a jig that you can buy that makes this job SO much eaiser. It is a universal jig that clamps onto the deck and keeps the blade from spinning so you can use a ratchet to remove the nut holding the blade on. One name brand is called a “Blade Hog”. You should be able to find one of these at one of the bog box hardware stores.

Hope this helps,
Chad

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Lawn mower motor reduces rpm’s when not on level ground
ANSWER : Balance and sharpen blade , check carb float

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Mower blade on one side spins free and will not cut grass
ANSWER : Check the bearings in that spindle.

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When I hold the bar down that engages the blade it will not cut?
ANSWER : Is the blade sharp?

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