Grinders - Page 4 - Recent Questions, Troubleshooting & Support

If this happens just after bought a new tool, Then there is a problem with a start capacitor, or the auxiliary winding from the motor , or just only a loose slide contact if there was a induction motor used, If such a thing happens go back to the dealer for warranty if you in doubt about control if its an easy to fix problem by yourself if nothing was broken.

A suppression capacitor has 2 wires and can be have red and black wire pair, and a motor have 2 wires from the electric field to the carbonbrushes and 2 other wires from the magnetfield goes to the switch and on the same wires can be connected a parallell suppresion capacitor connected bud in most cases its not needed in practice. The other 2 wires have to come from the powercable on the switch the most grinders to find in shops are class 2 angle grinders with double insulation, But If this is an bench grinder there must be a class 1 cable used with 3 wires to earthing a metal point on the housing. look always for the 2 square symbol its class 2 and cable has 2 wires otherwise 3 .

THE ELECTRONIC assembly must constantly get power . 2 THINGS CAN HAPPENS 1 The powercable has an broken wire is the most likely problem or if there is an electronic modul with an rpm-magnet disk( need for speedcontrol ) on the end of the armature after the bearing has a problem.it can melting by jam bad bearing and the motor house can be damaged magnetdisk melting with the house The electronic modul on itself has a problem in last option. Control all the collectors in the commutator if they all balanced together in resist even the 2 stator magnetfieldcoils must be are balanced in resist measure

• there is also an
• centrifugal circuit inside one- side of the motor electricfield (not in the spare parts to see or order) that could have a problem but first measure the capacitor
• There are no brushes used its an induction motor. with start capacitor and an centrifugal switch. that was when you give a swing to the grinder the capacitor you needed has an 8 or 10 microfarrad 250 volt AC to start i think but be shure the start centrifugal is in good order and the capacitor together.
• Delta 23 660 Type 1 Grinder Parts

Not neccesary to use , but 0.1 uf 300- 400 v to use but some model grinders have a third leadwire to the metal part on the electric field of the motor, special type suppression-capacitor. In most cases its not neccesary to use one anymore because of repeated complaint like some Bosch models have.

The brand is the most important thing in this question if its an old tool then sometimes only the ball ball bearing can be damaged by the big grinders but in moast cases the little Chinese tools are builded with lightweight metal soft gears that are lubricated with amblygon or renolit grease and sometimes its easy to get spare parts, but depends on the brand and its models budget line or professional. Sometimes there are cone wheel crown wheel sets to get for not much money , and sometimes if there is no separate cone on the armature made for replace then its made for only buying an other tool it useless to repair it.

If there are only 4 wires used first is to find the wires of the powercable wallconnector make a measure between them the 2 other leads goes to the motor turn the motor wires and the power cable together temporarily for research that does everything if there is a thirth lead to find make a measurement from the metal point of the housing to the earth lead on the wall connector Beware to Not always trust the used colors and or cables if more people over time have worked on it . if not sure if its a CLass 2 double insulated or Class 1 with a third Green/yellow earthlead. look allways for the two square symboles on the name plate with technical information on the machine to be shure if its a double insulated kl2 machine or a kl1 ( if kl2 remove then always the kl1 cable with earth lead).

it is slipping to one side because the pulley on the end is not aligned correctly on the adjuster arm that holds the front pulley there is a lever or knob that you use to adjust alignment ( instructions in user manual) find that adjustment and slowly move it while the belt is running you will see the belt running position change to you get it properly aligned each belt regardless of ryobi or generic will need adjustment after fitting

Both and could also be the switch on the grinder

If you put a wrench on the nut on the other end of the shaft, you have a 50/50 chance that the nut you want loose will come loose. If the wrong one comes loose, you can remove that nut completely (and the wheel) then take the nut with you to the store to buy another one. Then put two nuts back on and tighten them together as a jamb nut. Then try again. If the wrong nut still turns, you have to tighten the pair of nuts together tighter. good luck

that comes up as a craftsman brand by sears ( mass produced ) variable speed grinder I cant find an exploded view or user manual if you cant get the value information think you will be up for an oscilloscope

A murphy, A bench grinder must be used with a lot of caution and respect while using this equipment, Check the attached links,instruction and guides, Good luck work safe. "I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info." OSH Answers Fact Sheets Pedestal Bench Grinder Safety Bench Grinder Basics

Manual at the link, http://www.northerntool.com/images/downloads/manuals/152100.pdf

http://www.hammerwall.com/Manuals/Craftsman/Description/152.211700/Craftsman%20Utility%20Sharpener/L0804165/

try this one : http://www.dhgate.com/product/150-50-25mm-slotted-rubber-polishing-wheel/211977164.html?utm_source=pla&utm_medium=GMC&utm_campaign=lpaladin&utm_term=211977164&f=bm%7c211977164%7c019024-Tools%7cGMC%7c246818428%7cpla%7clpaladin%7cUS%7c019024005-ToolParts%7cc%7c%7c0LRF%7c&gclid=CMDska-PycsCFRY8gQodBdQL1A

No specific test points are provided. The unit will need dismantling to expose the internal wiring for testing purposes.

A single phase motor needs an additional winding for starting. The winding is often isolated by a centrifugal switch. If the grinder is little used it would not be unusual to find the bob-weights and linkage to be seized. It would seem time to dismantle the grinder and carry out some maintenance.

Call the Sears Craftsman help line they will have the parts you need

On a bench grinder the wheels turn towards you. This means the grinding wheel on the right side, has a right and nut, and the left side has a left handed nut. If you're trying to remove the left side turn the nut counter-clockwise

Hi edward, looks like you posted the same question twice. I already answered the other one. good luck.