| Author | Message | ||
     Nickon51 Tinkerer Username: Nickon51 Post Number: 41 Registered: 05-2008 Rating: N/A |
Meters are notoriously difficult to repair, but there are a few things that you can check. Have a look at the pointer itself and check that its not binding on anywhere in its swing. There may well be a 90 deg bend or two in the pointer for the trap needle mechanism. If that looks all clear then have a look at the armature mounting pivots at the top and bottom. the armature can sometimes jump out of the pivots and still partially work. The armature should be in the end pivots but there should be plenty of end play. Check the magnet gap that the armature turns in. A common problem is dirt or grit in that gap. Use a blower brush or a squirt of canned air to clear any debris. Final check is that the armature itself is not binding in the gap. If thats misaligned, then you may as well toss it out. Its impossible to get that right without the special jigs used in manufacture. Use care when moving the meter manually. Toothpicks are good, nothing metallic. Cheers Greg |