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Need help with meddling pillar drill.

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terry callaghan15/09/2019 10:57:21
186 forum posts
5 photos

I made a bad mistake last night and now my pillar drill as stopped working. I overlooked that my battery charger was still plugged into the extension lead along with pillar drill when I turned on the power. The charger clamps had made contact. The fuse was blown on the extension lead which I replaced. But now the pillar drill will not work. I have checked with a electrical wire tester and power is going to the drill motor and the switch. Is there a fuse inside the meddling drill, or have I blown the motor. If it’s the motor who supplies replacement ones. Thanks, michael

3404615/09/2019 11:25:04
735 forum posts
8 photos

Meddings Machine Tools are now offering a refurbishment service for the majority of their drilling machines post 1975

May be worth giving them a call if a new motor is needed on 01752-313323.

Bill

Pete Rimmer15/09/2019 11:40:47
417 forum posts
18 photos

I would suspect the extension lead first even given the test results.Several times at work I have tested leads which showed voltage at the socket but only had a few whiskers of conductor connected at the plug or socket so could not run the machine they were supplying.

Plug something else into the lead which has a fairly heavy draw, like a vacuum cleaner or heavy portable tool.
That will confirm for sure that the lead is not at fault.

JohnF15/09/2019 11:47:58
avatar
864 forum posts
102 photos

Is the motor a capacitor start? Does the motor buzz when power is supplied -- if so it may be the capacitor, I am no electrician and there will be others with the expertise along soon I guess !

Also why not plug the drill direct into a wall socket the cutting out the extension.

John

Edited By JohnF on 15/09/2019 11:49:01

Mike Poole15/09/2019 12:08:45
avatar
2106 forum posts
51 photos

The motors are a standard item, you will pay a premium rate to Meddings. There are plenty of motor suppliers around on the Internet. I would be very surprised if it is the motor at fault though. Some logical methodical fault finding as mentioned above should get you to the trouble source. Even if you end up at the motor then get it tested before buying another. The scenario you describe will not have burnt the motor out so is most likely repairable. Don’t jump to conclusions, you must test and prove things.

Mike

larry phelan 115/09/2019 13:16:24
497 forum posts
11 photos

As advised, bypass the extension lead and plug in direct to a socket.

You might be surprised ! I find that leads are a mixed blessing, always get into knots and under your feet.

All my machines are plugged into their own sockets, so I use leads only when I have to

Like other Members , I doubt if the motor is dead.

Brian Sweeting15/09/2019 15:34:06
378 forum posts
1 photos

A lot of extension leads have trip switches attached to the socket outlet, check the lead on something else.

A wire tester will not tell you if you have a circuit, the neutral may be broken.

Clive Foster15/09/2019 17:31:18
1835 forum posts
59 photos

Love those plug in ring mains testers for quick diagnostics with this sort of issue.

Prefer the uber cheap three LEDs on means all OK, like this one **LINK** .

Check in known good socket first.

Then all on means the suspicious one OK, the one or more off shows where the fault is.

Its pretty hard to get wrong.

With the clever ones where you have to read the list of light combinations to figure out exactly whats wrong its easy to make a mistake decoding things. I've been told by "one who ought to know" that there are some, theoretically never found, weird issues that can confuse them too.

Clive

Frances IoM15/09/2019 18:32:46
639 forum posts
24 photos
assuming that one side of the charger output was already connected to ground and the other side made contact with the usually grounded metal work of the the drill then the damage assuming a high current charger is likely to be a damaged earth lead that found itself completing a low voltage high current loop and any connectors it goes thru (there was a case some time ago when someone welding on a lathe burnt out the earth wire which burning damaged nearby wires - it is possible this has happened in your case.

Edited By Frances IoM on 15/09/2019 18:33:05

Edited By Frances IoM on 15/09/2019 18:33:50

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