Welding mask and welder

[novocaine]

I can't read what it says on the relay but that all looks to be 12v to my eye and the load resistor on the right is 7w so the motor I linked to should be pretty damn close to correct.
measure the shaft diameter to make sure it will fit and for 5 quid get ordering.

of course, there is the chance that it isn't the motor that's buggered and it's a dirty contact in the switch at the gun. (reckon a bit of contact cleaner might be a good idea before you spend any money).

 

[novocaine]

https://www.google.com/search?q=telwin+ ... evLtGy6AvM

 

[woodstalker]

I can't read what it says on the relay but that all looks to be 12v to my eye and the load resistor on the right is 7w so the motor I linked to should be pretty damn close to correct.
measure the shaft diameter to make sure it will fit and for 5 quid get ordering.

of course, there is the chance that it isn't the motor that's buggered and it's a dirty contact in the switch at the gun. (reckon a bit of contact cleaner might be a good idea before you spend any money).

Cheers will get some contact cleaner in the gun but it was powering up the wire when the trigger was depressed. I’ll get confirmation of the writing on the relay and also get the multimeter into action too on the motor.

 

[woodstalker]

Relay text reads:

Made in Italy
FEME MZP
A 100 49 05

Meter reading:

Set to 2000m DC on my Gunsons pocket meter 1 reads 20.

 

[novocaine]

Suggests a 24v motor. Bugger i got it wrong.

 

[woodstalker]

Suggests a 24v motor. Bugger i got it wrong.

Unless I’m using my multimeter incorrectly. Wouldn’t be the first time!

 

[spb]

That '2000m' setting will be reading millivolts, on a scale of 0 to 2000 - i.e. up to 2V. To tell between 12 and 24V, you'll want the '250' scale.

 

[woodstalker]

That '2000m' setting will be reading millivolts, on a scale of 0 to 2000 - i.e. up to 2V. To tell between 12 and 24V, you'll want the '250' scale.

I thought that but when set to 200 there’s no reading at all and 200m it reads 24. I tried the connections in the PCB too and same readings. So maybe the PCB or a component in it is gone?

 

[spb]

That sounds odd. Have you got a fully charged battery to test it against to make sure?

 

[DaveL]

Also is the battery in the meter OK?

 

[woodstalker]

That sounds odd. Have you got a fully charged battery to test it against to make sure?

I’ll try it after tea, I’ve got a 12v car battery we use for the duck fence.

 

[woodstalker]

That sounds odd. Have you got a fully charged battery to test it against to make sure?

I’ll try it after tea, I’ve got a 12v car battery we use for the duck fence.

Right in the 200 DC setting a charged car battery reads 12.6V

Tried the feed motor again and nothing even with the speed variable resistor in max. Figured I’d use the multimeter to work back through the circuits and see what it said so used a clamp to depress and hold the trigger down and the motor suddenly fired up reading 11.1V. Took the clamp off and nothing just the click of the main switch as the feed wire goes live. Added clamp motor kicks in. I am now suspecting dodgy trigger switch so will take it apart and see what’s what!

 

[novocaine]

I refer the right honourable gentleman to my earlier post. :lol:

 

[woodstalker]

I refer the right honourable gentleman to my earlier post. :lol:

“I stand corrected” said the man after severe ankle surgery! So I assumed the switch in the torch was fine because when it was depressed ‘something’ happened. Anyway stripped it down and it looked like this:



Not much I could do to get further in but sprayed contact cleaner in and gave it a bit of a workout and this far it seems to have worked.

Thank you for your help; I’ll have a little go now and post my spattered bird poo attempts at joining two bits of steel!

 

[novocaine]

Remember,even a stopped clock is right twice a day.

Note: its got a better strike rate than me. :lol:

 

[woodstalker]

Remember,even a stopped clock is right twice a day.

Note: its got a better strike rate than me. :lol:

I refer you to my earlier post that I need all the help I can get...

Best of the bunch:

 

[spb]

Grinder and paint will sort that out in no time.

 

[9fingers]

Grinder and paint will sort that out in no time.

+1

Bob

 

[novocaine]

Bit tall but completly passable. Nothing to be ashamed of there.
Let the puddle lead to and move from one bit to thw other to clear any undercut.

 

[woodstalker]

Cheers again for all the help from everyone.

It was the best of the bunch but then I have never really welded before, the rest were atrocious but as mentioned above the grinder sorted them out. Its only a stand for my oil drum garden incinerator.

Practise before i start anything more substantial!