Question about Makita 9005B 5" Electric Angle Grinder

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Can't get grinder to turn on. Checked brushes, cord, trigger/switch. Any suggestions?

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  • taryna Feb 26, 2009

    Yes I had, I talked to Makita themselves and they said it is probably the armature which can burn out if they used too high of voltage in the cord.

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  • Master
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Did you check continuity to the field/brush holders. They have a garter spring that sometimes became overheated and broke. It seems like you have done everything else. Let me know

Posted on Feb 25, 2009

  • David Ford
    David Ford Feb 26, 2009

    I would still look at the continuity to the brush holders. That armature is pretty durable.

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Krups grinder 223


what problem do you have?
If the grinder does not run when turned on, make sure power is on to the outlet, then check the electrical cord.
If the grinder runs intermittently or doesn't stop, the switch may be clogged or damaged. Unplug the grinder and brush any grounds from the switch with a fine brush. Depress the switch several times with a toothpick. If the problem persists, disassemble the grinder to clean it and inspect the switch for breaks that you can fix.
If the grinder does not run, the motor shaft may be frozen. Disassemble the grinder, clean the shaft and lubricate each bearing point with one or two drops of lightweight machine oil. Rotate the shaft to evenly distribute the oil.
coffeegrinder1_1.jpgMost coffee grinders are accessed by removing fasteners on the base of the device.If the grinder still does not operate, the thermal limiter may be burned out. If you can't readily find a replacement thermal limiter, it may be more cost effective to replace the grinder.
If the grinder vibrates, the blade may be bent. Inspect the blade and replace if it is damaged or dull. Another cause of vibration could be a worn motor bearing. Unplug the grinder and remove the access plate. The bearing is bad if the motor shaft moves when pushed back and forth; replace the grinder.

Sep 25, 2012 | Krups Coffee Makers & Espresso Machines

1 Answer

Krups grinder mod 233


see this causes and proceed .God bless you
If the grinder does not run when turned on, make sure power is on to the outlet, then check the electrical cord.
If the grinder runs intermittently or doesn't stop, the switch may be clogged or damaged. Unplug the grinder and brush any grounds from the switch with a fine brush. Depress the switch several times with a toothpick. If the problem persists, disassemble the grinder to clean it and inspect the switch for breaks that you can fix.
If the grinder does not run, the motor shaft may be frozen. Disassemble the grinder, clean the shaft and lubricate each bearing point with one or two drops of lightweight machine oil. Rotate the shaft to evenly distribute the oil.
coffeegrinder1_1.jpgMost coffee grinders are accessed by removing fasteners on the base of the device.If the grinder still does not operate, the thermal limiter may be burned out. If you can't readily find a replacement thermal limiter, it may be more cost effective to replace the grinder.
If the grinder vibrates, the blade may be bent. Inspect the blade and replace if it is damaged or dull. Another cause of vibration could be a worn motor bearing. Unplug the grinder and remove the access plate. The bearing is bad if the motor shaft moves when pushed back and forth; replace the grinder.

Sep 25, 2012 | Krups Coffee Makers & Espresso Machines

1 Answer

I have a dewalt dw818 angle grinder when i press the trigger it starts spinning but if i tilt the grinder a little it stops spinning done the brushes already help please


Check your power cord. Turn the grinder on, then pull and twist the power cord, especially by the boot coming out of the grinder. If there's a break in the line, it's possible for it to work in some positions but it will die if you change the orientation of the cord to the tool.

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1 Answer

Circular saw that won't turn on ( the switch and cord are brand new )


Do you get a voltage reading from the brush holders? Have you checked the brushes, some of them have cut outs.

Jun 05, 2012 | Porter Cable Saws

1 Answer

No power


First thing to check is the brushes. They should be long enough and the springs should be strong enough to push the brushes firmly down on the armature. If not replace them. Next, check outlet with another tool; if no power fix outlet issue or use another outlet. If you have power at the outlet, plug in grinder and check voltage where cord goes in the grinder switch. If no power, replace the cord. If you have power coming in, check for power on out side of the switch with the switch on. If you don't have power replace the switch. If you have power out of the switch and the brushes are OK, you may have continuity problems in the field or armature. If you have the equipment to check them do so and replace what's damaged. If not I'd just replace the grinder, if you need an armature and/or field you would be better off with a new grinder.

Feb 02, 2012 | Saws

1 Answer

110v grinder just stopped what is wrong


could be quite a few tings. Is the power cord cut? If you have a volt/ohms meter I would recommend trouble shooting the tool. First unplug the cord and remove the cover to expose the switch area. Checking the blades on the cord first to their switch connections and then turn the switch on and go across the terminals to the brush leads. Check the condition of the brushes for wear and so forth. It is a process of elimination.

Jun 20, 2011 | Makita Angle Grinder 4.5" 9524NBX

1 Answer

Inboperative (no power)


Howdy, if you have checked the outlet, the cord, the cord connection to the motor the switch and the brushes, then you may just have a worn out motor or reset switch. Getting a motor rewound used to be a practical solution, but it has become difficult to find a service that will charge less than a new grinder would cost. If you have done all these checks, you can shop for a new one with a clear conscience:)

Regards, Farmerbear at FixYa.com

Sep 07, 2010 | Grinders

1 Answer

The grinder just stopped working


They are very simple inside, the only serviceable parts: if its not a switch/connection it is the motor brushes. Or the motor is defective.

It would only be the motor brushes if you had been using it for a longtime before and they wore down.

If it is new, return it for warranty exchange.

Hope this helps,

Kevin

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1 Answer

Dewalt dw474 grinder quit


you need new brushes. carbon is meant to be touching the armature not the contact from the spring. Its worn down

May 10, 2009 | Dewalt DW824 5" Electric Angle Grinder

1 Answer

Bosch angle grinder stopped cold when tapped lightly


Yes, if you have taken the handle halves apart (unplug tool first) check with your meter thru the blades on the cord to the switch contacts and then lock the switch in the on position and check across the switch and then remove the brush caps and brushes and check thru to the brush holders, if at any time you lose continuity then that would be your problem. Let me know if I can help further.

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