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Tractor Talk Discussion Forum

Growler??

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AWB

02-08-2005 15:30:40




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What is a growler used for? How does it work? Where can I locate one?




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Iowan

02-09-2005 07:02:10




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 Re: Growler?? in reply to AWB, 02-08-2005 15:30:40  
I have a growler that I will part with if you are interested. It is quite heavy and has a couple of leads on it to check the starters and generators. I dont know where you live, but it can be shipped. I am closing up shop and most everything is for sale. 712 882 2258 Iowa



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greenbeanman in Kansas

02-08-2005 20:10:47




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 Re: Growler?? in reply to AWB, 02-08-2005 15:30:40  
Another use is to magnetize a screwdriver with them in order to hold a screw until you can get it into one of those fun hard to reach spots.

Lay the screwdriver across the V and turn the growler on, then back off. It has been a long time since I have done this, so you may need to place the screwdriver, turn the growler on, then pick up the tip and lift the screwdriver. At any rate, one way magnetizes the screwdriver while the other demagnetizes it.

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dr.sportster

02-08-2005 18:32:04




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 Re: Growler?? in reply to AWB, 02-08-2005 15:30:40  
Snap-on still sells growlers.I have one and the instructions are painted on the face of the unit.I think I paid around $250 but cant exactly recall.There may be used available elsewhere if you take out a wanted ad or something like that.



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Jon H

02-08-2005 17:24:36




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 Re: Growler?? in reply to AWB, 02-08-2005 15:30:40  
A growler is a big 120 volt AC coil with a V shaped laminated frame with the V open to the top. It is used to check starter and generator armatures for shorted windings. To test an armature you lay it in the V of the growler with the coil energised. The 60 cycle AC will cause a growling noise as the armature vibrates in the V of the growler frame. With the armature contacting the growler frame at the 4 and 8 o clock position and a thin steel strip laid parallel on top of the armature at the 12 o clock position,a shorted armature winding will cause the steel strip to vibrate wildly when held lightly against the armature. You slowly rotate the armature in the growler while loosly holding the strip at the 12 o clock position. If you find a spot that causes vibration of the steel strip,then either the insulation on that winding is defective or brush dust has shorted the commutator bars together. Clean the spaces between the commutator bars and test again.
Most growlers also have a built in test light with prods that when connected to the armature shaft and individual commutator bars will light the light if any windings have bad insulation and are shorted to ground. I asked my friend at the local salvage yard if a useable growler ever came in with the grage scrap,he walked me back to a shelf and gave me my choice of 4. One note of caution is most older growlers have the test light wired directly to the 120V power supply,so touching the metal end of one or both of the test prods can give you a deadly shock. Even if you touch only the one prod connected to the hot side of the line and a good ground it will hit you with 120V.

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John M

02-08-2005 16:12:34




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 Re: Growler?? in reply to AWB, 02-08-2005 15:30:40  
Checking the armature of a starter,maybe generator too,I dont know much about them other than that.



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RustyFarmall

02-08-2005 16:58:34




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 Re: Growler?? in reply to John M, 02-08-2005 16:12:34  
John M, you are correct, it can be used for both. It will let you test for electrical shorts in the armature.



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Steve(OR)

02-08-2005 16:03:21




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 Re: Growler?? in reply to AWB, 02-08-2005 15:30:40  
Scaring burglars.

Growler hears burglar, he growls.

Dog pound.



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