OF
Well-Known Member
How do you go about measuring the resistance OF? What tool would you need to do that.
The easiest way is with a digital multi meter (DMM), or 'meter' as found these days in hardware stores even. Like these:
http://www.amazon.com/Palm-Size-Han...1339767591&sr=8-3&keywords=digital+multimeter
http://www.sears.com/craftsman-mult...p-03482141000P?prdNo=2&blockNo=2&blockType=G2
http://www.lowes.com/pd_292768-1270...63&Ntt=multimeter&pl=1¤tURL=&facetInfo=
The key feature, available on all such meters I think I've ever seen, is a 200 Ohm range (you'll see it at about '6 o'clock' on the dial in most of these guys since they're pretty similar inside. Use that range.
Put the supplied probes in the 'com' and 'volt ohms' jacks (avoid the "10 Amp DC only" one), and turn it on. The display should go to 'over range', usually just the first 1 lit, with no zeros. Touching the probes together should read some very small number of Ohms (the resistance of the leads and connections). To be most accurate, note this reading and subtract it from the cart reading. In practice, hold one probe against the body of the cart with one hand while you use the other to probe the center pin on the screw connector. The answer, in Ohms (plus the lead resistances) will then be displayed. For 2.4 Ohm carts there are two five Ohm resistors in there in parallel to total 2.4, so failures will read 5 Ohms (about) for one coil missing, or 'full scale' for both.
You can also use the same meter to measure your batteries. Use the 20 DCV range instead. Lose batteries are easy to read. Power supplies we often call 'batteries' in error can also be easily read, hold one probe to the body as you press the button down and probe the contact in the center of the socket with the other hand. Although it should be protected, be careful not to short the probe to the socket wall.
HTH big guy? BTW, if you need help spending that windfall, let me know.....always happy to help out you know.....
OF