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Other Vintage Household Electrical or Electromechanical Items For discussions about other vintage (over 25 years old) electrical and electromechanical household items. See the sticky thread for details. |
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Thread Tools |
27th Oct 2019, 3:42 pm | #1 |
Retired Dormant Member
Join Date: Oct 2019
Location: Durham, County Durham, UK.
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Wolf Cub Drill Restoration Question
Hello
I was just wondering if anyone could help me identify a small electrical part from my Wolf Cub Drill? I am pretty much a novice but I suppose we have to start somewhere. The bit was just detached from one of the brush wires. Thanks |
27th Oct 2019, 5:09 pm | #2 |
Dekatron
Join Date: Apr 2012
Location: Wiltshire, UK.
Posts: 13,951
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Re: Wolf Cub Drill Restoration Question
That's a suppression choke, designed to control the interference caused by sparking between the brushes and the commutator as it rotates. In times-past, this interference - if unsuppressed - could wipe out TV/radio reception over a wide area.
Yours looks like it's come to the end of its useful life - I'd suggest maybe something like this: https://uk.rs-online.com/web/p/leade...ctors/8807161/ as a replacement? |
27th Oct 2019, 10:01 pm | #3 |
Dekatron
Join Date: Jan 2004
Location: Newcastle upon Tyne, Tyne & Wear, UK.
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Re: Wolf Cub Drill Restoration Question
Hi John, it should work witout it but may give radio and TV interference.
Spare brushes are still available, if you get over this way I may be able to find you something suitable. These drills, if serviced occasionally will go on forever. I also have its bigger brother, a real "gut buster" that has done a very serious amount of work over the yeas and is still going strong. Ed |
28th Oct 2019, 12:56 am | #4 |
Retired Dormant Member
Join Date: Oct 2019
Location: Durham, County Durham, UK.
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Re: Wolf Cub Drill Restoration Question
Many thanks for your replies. I have ordered some of these chokes.
As we speak I am putting it back together so when it's done I'll post a pic and results. Got 2 B&D drills to look at after this, both absolutely filthy, quite enjoying this new hobby. Thanks guys, keep you updated. |
28th Oct 2019, 11:09 am | #5 |
Octode
Join Date: Nov 2011
Location: Manchester, UK.
Posts: 1,872
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Re: Wolf Cub Drill Restoration Question
You might find you want to build a speed-controller next, which greatly increases the range of things these can do in metal (otherwise they go a bit, or a lot, too fast). Then the folks on here will really get their electronic teeth into you
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28th Oct 2019, 7:20 pm | #6 |
Dekatron
Join Date: Nov 2009
Location: Lincolnshire, UK.
Posts: 4,985
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Re: Wolf Cub Drill Restoration Question
If you like old drills then I suggest you have a good look through all the pages of this thread - you might be surprised, then add your drills, with pictures, to that thread:-
https://www.vintage-radio.net/forum/...d.php?t=148750 |
30th Oct 2019, 8:56 am | #7 |
Heptode
Join Date: Jul 2009
Location: Newcastle upon Tyne, Tyne & Wear, UK.
Posts: 722
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Re: Wolf Cub Drill Restoration Question
That brings back memories - my dad had one in his tool cupboard - didn't work and it weighed a ton! Hmm, or was I just small and weedy?
I have a big SDS drill now and walls simply tremble at its approach! James |
30th Oct 2019, 5:29 pm | #8 |
Dekatron
Join Date: May 2010
Location: Greater Manchester, UK.
Posts: 18,675
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Re: Wolf Cub Drill Restoration Question
Personally I would not want to use a metal-clad power tool like that.
At the very least, fit an RCD plug .
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30th Oct 2019, 8:27 pm | #9 |
Dekatron
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Location: Warnham, West Sussex. 10 miles south of DORKING.
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Re: Wolf Cub Drill Restoration Question
Agree. Many of these old tools required an earth and were lethal when used outdoors or on damp surfaces. The earth wire could be cut, pulled from the plug or come into contact with the live wire due to cuts etc. It was the same problem with early electric lawn mowers. They are all double insulated these days or run from a 110v isolation transformers for safe use for outdoor applications such as building contractors.
Enjoy your old tools but only use them through an RCD. |
31st Oct 2019, 2:24 pm | #10 |
No Longer a Member
Join Date: Oct 2016
Location: Maroochydore, Queensland, Australia.
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Re: Wolf Cub Drill Restoration Question
Wow, I haven't seen a Wolf Cub drill like that for over 45 years. Well worth restoring, very cool drill. I remember trying one out after I graduated from a push/telescopic style hand drill and thought all my Christmases had come at once.
The modern world of plastic double insulated drill enthusiasts would probably frown on that lovely metal body. I think its great, just make sure its properly earthed. |
31st Oct 2019, 4:15 pm | #11 |
Dekatron
Join Date: Nov 2009
Location: Lincolnshire, UK.
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Re: Wolf Cub Drill Restoration Question
If I'm worried I always run them via an isolation transformer.
Have you seen that other drill thread I linked to, Argus? |
6th Dec 2021, 10:24 pm | #12 |
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Re: Wolf Cub Drill Restoration Question
Thread reopened at member's request.
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Graham. Forum Moderator Reach for your meter before you reach for your soldering iron. |
6th Dec 2021, 11:08 pm | #13 |
Octode
Join Date: Nov 2011
Location: Manchester, UK.
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Re: Wolf Cub Drill Restoration Question
Thanks Graham
I have been playing with one of these - it works, but despite the (plain) armature bearings feeling and looking OK when pulled apart and turned by hand, it makes a racket like those bearings have had it, when under power. I wonder if anyone has ever tried to (for example) sit the bearings one one of these in hot oil - not sure if they are plain plain, or sintered. Cleaning and re-greasing made it a little better, but it still sounds fairly horrible. Just for fun - I don't really need it to work. But it's a nice little thing. M
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6th Dec 2021, 11:15 pm | #14 |
Dekatron
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Location: Colchester, Essex, UK.
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Re: Wolf Cub Drill Restoration Question
It's the sort of vintage that could well have sintered bushes....even if they're not an oil bath won't do them any harm. Sintered brass has a slightly speckly finish when new but not sure if they become shiny with wear.
It's not gear chatter is it? Dave |
6th Dec 2021, 11:47 pm | #15 |
Octode
Join Date: Nov 2011
Location: Manchester, UK.
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Re: Wolf Cub Drill Restoration Question
That's an interesting suggestion. I could try to run it with the gearbox detached - though with no load on the armature at all perhaps I should do so powered through a variac, in case it really spins away!
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6th Dec 2021, 11:55 pm | #16 |
Dekatron
Join Date: Jun 2009
Location: Staffordshire Moorlands, UK.
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Re: Wolf Cub Drill Restoration Question
I would prefer to use a metal drill with a good earth rather than through an isolation transformer. The case could soon become live again when you drill through a hidden ring main cable.
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Kevin |
7th Dec 2021, 2:06 am | #17 |
Heptode
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Location: Warminster, Wiltshire, UK.
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Re: Wolf Cub Drill Restoration Question
I remember during the 70s there was a public information program of a man using a metal drill and the wires held in a cooker socket with matches. As he’s working the earth wire pulled out and touches the live wire ,thus making his drill live and electrocutes him.
I believe as there was quite a few round pin plugs about people couldn’t be bothered to keep changing plugs to suit the socket. Also no 30ma RCDs in them days Andy
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I bet that car doesn't have a suppressor. |
7th Dec 2021, 11:12 am | #18 | |
Octode
Join Date: Jul 2004
Location: Dundee, UK.
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Re: Wolf Cub Drill Restoration Question
Quote:
The body casting has a tapped hole for an earth connection so it is quite possible that the same casting was adapted to make the insulation double, or possibly reinforced. That insulation is a dark green polymer coating and looks quite thick. It is one of a few types of Class II appliance which can be tested as well as inspected. PMM |
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7th Dec 2021, 11:29 am | #19 |
Octode
Join Date: Dec 2017
Location: Morden, Surrey, UK.
Posts: 1,552
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Re: Wolf Cub Drill Restoration Question
I seem to remember that the Wolf Safetymaster was the first or at least one of the first double insulated drills back in the early sixties.
I have been using earthed metal cased drills for sixty years - still here..... |
7th Dec 2021, 7:28 pm | #20 |
Octode
Join Date: Nov 2011
Location: Manchester, UK.
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Re: Wolf Cub Drill Restoration Question
Things have moved on - I found an ebay seller who seemed to have done one of these up for sale (there were useful 'in bits' photos in the listing), who has been very helpful and turns out to hold some spares and lots of knowledge - his father worked for the firm in the '70s. I have suggested he might enjoy this thread, and the 'show us your drills' one linked above.
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"The best dBs, come in 3s" - Woody Brown |