- Tongue guards —Tongue guards are metal plates located at the upper part of the wheel opening of the bench grinder. ...
- Work rests —Per OSHA, bench grinders must be equipped with a rest that can support workpieces. ...
- Side guards —Sometimes referred to as spindle guards, these guards are designed to enclose the wheel and spindle of a bench grinder. ...
What are tongue guards on a grinding wheel?
The tongue guards are metal plates located at the upper part of the wheel opening. They are designed to stop pieces of the grinding wheel from flying out in the event the wheel shatters.
What size tongue Guard do I need for a bench grinder?
Tongue Guard Do make sure your bench grinder has an adjustable tongue guard/spark arrestor and set it to ¼ inch or less from the wheel’s grinding face. OSHA 1910.215(b)(9) Exposure adjustment.
Where are the guards on a bench grinder?
There are normally three “guards” found on a bench grinder – the tongue guards, work rests and spark shield. The tongue guards are metal plates located at the upper part of the wheel opening.
What are the parts of bench grinder safety 3?
Bench Grinder Safety 3 Contents: 1. Blotter 2. Blotter & Flanges 3. Machine & Wheel Speeds 4. Ring Test 5. Bench Grinder Side Guard 6. Work Rest Guard 7. Tongue Guard 8. Work Area 9. Restart on Power Loss 10.
Do you need a guard on a grinder?
0:040:58ASK THE EXPERT: Do I really need to use a guard with my angle grinder?YouTubeStart of suggested clipEnd of suggested clipProduct when uh when you're grinding or cutting with it this guard is designed to keep the debrisMoreProduct when uh when you're grinding or cutting with it this guard is designed to keep the debris from that away from you it also directs the sparks.
What is the function of guard in grinder?
Grinding wheels must be guarded by appropriate protective guards on grinding machines. These guards must be capable catching broken wheel fragments effectively. Only that part of the wheel required for grinding may be left unprotected. Certain operations may require even the entire wor¬king area to be guarded.
How far should the guard be on a bench grinder?
1/4-inchGrinder Safety – Work-Rests and Tongue-Guards In addition, the distance between the grinding wheel and the adjustable tongue-guard — also known as a “spark arrestor” — must never exceed 1/4-inch.
What are the parts of a bench grinder?
Parts of a Bench GrinderThe Motor. The motor is the middle portion of a bench grinder. ... Grinding Wheels. ... Eyeshield and Wheel Guard. ... Tool Rest. ... Keep a Pot Full Of Water Nearby. ... Use Pliers When Grinding Small Objects. ... Make a Guideline for Tool Sharpening. ... Use Low-Speed Grinder.More items...•
Where do guards go on grinder?
1:103:00Angle Grinder Safety Chapter 3: Guarding Systems - YouTubeYouTubeStart of suggested clipEnd of suggested clipThe outer lip of the grinding guard should curl toward the wheel to better retain sparks hot metalMoreThe outer lip of the grinding guard should curl toward the wheel to better retain sparks hot metal particles and possible broken wheel fragments. And if you cannot mount the wheel.
Where do you put the guard on an angle grinder?
Position the blade guard at the back towards your body. Use a smooth back and forth motion to guide the flap disc over the material. Let the wheel do the work, but feel free to apply enough pressure to ensure you're being productive.
How close to the grinding wheel should the tongue guard be placed?
1⁄4-inchThe tongue guard must be adjusted to maintain a maximum 1⁄4-inch distance between it and the wheel. An adjustable work rest must also be installed and adjusted to maintain a maximum clearance of 1⁄8-inch between it and the wheel.
Why do bench grinders have 2 wheels?
Bench grinders come with two wheels that can be used for multiple purposes. The first wheel is usually designed for fine sharpening and precision work, while the other wheel is used for rough shaping. These can be easily swapped out for different wheel configurations according to the user's needs.
What causes grinding wheels to explode?
An under-rated, worn, damaged, or clogged grinding wheel can fracture and explode – releasing tremendous amounts of energy in the form of high-hardness shrapnel. This is a severe hazard and often results in operator fatality.
Can you sharpen knives with a bench grinder?
0:000:29How to sharpen a knife with a bench grinder - YouTubeYouTubeStart of suggested clipEnd of suggested clipTurn on the grinding wheel hold the 9th at a 45-degree angle to the grinding wheel. Move the knifeMoreTurn on the grinding wheel hold the 9th at a 45-degree angle to the grinding wheel. Move the knife across the wheel from the base of the knife to the tip repeat.
Can I sharpen a chisel on a bench grinder?
You can sharpen your chisels on a bench grinder. Your bench grinder must have enough power and the correct type of stone. More importantly, you must use techniques that maintain the correct bevel and avoid overheating the steel in your tool, which can soften the cutting edge.
Should you wear gloves when using a bench grinder?
Personal protective equipment, including safety eyewear and a faceshield, should be worn when operating a grinder. Hearing protection also may be required. Gloves should be worn only if using a tool grip of adequate length to keep hands several inches from the face of the stone.
What is a tongue guard?
The tongue guard is an adjustable safety plate that is attached at the top of the wheel guard enclosure and can be moved closer to the wheel as its diameter decreases from wear.
Why are pedestal grinders dangerous?
Almost every maintenance shop has a bench or pedestal grinder. They are most commonly used to shape or sharpen the cutting edges of tools such as chisels or lawn mower blades. These are powerful, useful tools, but they are also potentially dangerous because users take them for granted. Serious injury and even death can result from improper handling, installation or use of abrasive wheels. Cracked or defective grinding wheels can “explode” when in use.
What should be covered in a wheel guard?
The wheel guard enclosure should cover most of the wheel, the spindle, and the wheel mounting hardware. Some of the wheel must be exposed to allow grinding access, but the maximum access space between the horizontal work rest and the top of the wheel guard opening should be no more than 65 degrees of the wheel.
Can a grinder explode?
Cracked or defective grinding wheels can “explode” when in use. Secure both pedestal and bench style grinders securely to the floor or work bench to prevent movement during usage. Store grinding wheels carefully on racks in dry places, and visually inspect them for warping, chips, cracks or other damage before installation.
Can you grind a wheel with a face?
Gradual application gives the wheel an opportunity to warm up and lessens the chance of breakage due to thermal stress. Most grinding wheels are designed for face use only. The side of the wheel should not be used for grinding unless it is designed for that purpose.
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Product description
Fits 6" through 8" Wheel Baldor Grinders (Shown on a 6") Add these often-missing tongue guards to your Baldor Grinder and bring your machine up to OSHA standards! This is one of the most commonly cited OSHA violations.: 1910.215 (b) (9) Guarding of abrasive wheel machinery.
What should a bench grinder guard cover?
Bench grinder guards should have side guards that cover the spindle, end nut, and flanges. It must cover 75% of the wheel’s diameter. 12. Work Rest Guard. Do make sure your bench grinder has an adjustable work rest that is kept adjusted to 1/8 inch or less from the wheel’s grinding face. OSHA 1910.215(a)(4) Work rests.
How is a grinding wheel driven?
The grinding wheel is driven by the machine flanges. The forces that drive the wheel are transmitted through the bearing surface of the flanges. The surface that drives the wheel (bearing surface) must always be in contact with the side of the wheel.
Is a bench grinder safe?
Bench grinders and bench grinding wheels have been in service for over 100 years and, when used correctly, they are a safe and effective tool. The causes of most accidents with these products have been related to misuse and abuse. An important way of avoiding wheel breakage and injury is to follow these Best Practices for Bench Grinding Wheels.
