Needing left hand thread nut for 50-6 duracraft bench grinder Have not been able to find one.

SOURCE: Bench Grinders Safety issues

Goggles or safety glasses need to be worn to protect the operator's eyes from the sparks and metal filings that result. Depending on the workpiece and time of exposure, hearing protection may also be required, the dust produced is also potentially hazardous. The toolrest (or workrest) should be mounted slightly below the center of the grinding wheel with less than 3 mm clearance from the wheel. This prevents the work from jamming between the toolrest and the wheel. Grinding wheels designed for steel should not be used for grinding softer metals, like aluminium. The soft metal gets lodged in the pores of the wheel and expand with the heat of grinding. This can dislodge pieces of the grinding wheel. Wire brushes require particular attention for the safety of the operator and bystanders as the metal wires may become dangerous projectiles as they could bind with the object being brushed and so throw it away with great energy. The machine needs to be securely mounted to a pillar or a bench to be used safely and effectively, often with an emergency stop switch or pedal fitted close by the machine, for use in emergencies.

SOURCE: switch and capacitor crapped out on 1/2 hp Sears bench grinder

Replacement should be simple. Just do a one for one hookup with the new part, after you unplug it first.
For a diagram go to;

http://www.searspartsdirect.com/partsdirect/getSubComp.pd?modelNumber=397.1949&productCategoryId=0721000&brandId=0247&modelName=CRAFTSMAN-1%2F2-H.P.-GRINDER&diagramPageId=00001&documentId=00023041&pop=flush

SOURCE: Iam trying to replace the drive belt on my

The compensating sprocket nut is indeed right hand threads. It is torqued to 150-165 foot pounds of torque and usually has Locktite 271 (red) in it. A lot of mechanics go overboard with the Loctite. I've seen the entire inside of the nut "painted" with this stuff. The book calls for "two lines" of the stuff when putting the nut back on.

The easiest way to get the nut off is with a GOOD air wrench. I bought one of those Ingersol-Rand Titanium air wrenches. I've seen nuts on so tight that I've had to use a 3/4" air wrench to get them off. If you don't want to purchase an air wrench, load the bike on a trailer and take it to a tire store. Ask them to take the nut off for you. Usually they'll do it free but they may charge you a couple of dollars. It is worth a couple of dollars to get the nut off.

When putting the bike back together, the compensator sprocket torques to 150-165 ft lbs. of torque with two lines of 271 Loctite in it. The clutch hub nut torques 60-80 ft. lbs. left handed with one line of 271 Locktite. Make sure your torque wrench will torque in the left handed direction. Not all wrenches will.
Good Luck.

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SOURCE: how to remove a 5.3l chevy fan

The fan loosens counter clockwise.Use a 1 7/16" open end wrench.Put the wrench on the nut and hit it with a hammer to loosen.Leave the belt on until the fan is loose.

SOURCE: Need part numbers to replace eyeshields on Dayton bench grinder

Your grinder is listed on page 3085 of the Grainger catalogue. The part number for the eyeshield is 00281.00 and the number for the lower eyeshield bracket is 00280.00. The right hand upper eyeshield bracket is number 25188.00 and the upper left hand bracket number is 25177.00. All of this can be ordered through Grainger at 1-800-323-0620. Marvin T.

Testimonial: "This was very helpful. I have ordered parts from Grainger. Thank You."