Coach Batts overcharging
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11-22-2010, 07:39
Post: #11
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Coach Batts overcharging
Agree completely about meters. Over years damage to the meter, wiring, and
terminals can happen. When a meter gives unexpected readings, verify the values with another instrument and then proceed with looking for the reason. Checking the shunt was the quick way to suggest looking at the physical condition of the end terminals, cables, insulation, etc. As mentioned earlier, the shunt bar itself is unlikely to fail. Bob Griesel '84 FC31 WLII WA --- In WanderlodgeForum@yahoogroups.com, GARY MINKER > > Most shunts are ten millivolts (.1V) at rated current.à The wiring to the meter is likely messed up or the meteris bad.à Shunts are just calibrated shorts that actually have a use. > gary > 85pt40 > > --- On Mon, 11/22/10, freewill2008 > > From: freewill2008 > Subject: [WanderlodgeForum] Re: Coach Batts overcharging > To: WanderlodgeForum@yahoogroups.com > Date: Monday, November 22, 2010, 12:47 PM > > > > > > > > à > > > > > > > > > > Gary - That is exactly what I would think, but I have a bum shunt that gives bad readings at the meter and does not pass current reliably. Hard to visually inspect this one and I have not removed it to find out. Possibly there has been physical damage at one of the end terminals. For now it is bypassed. > > > > Agree 300% about the meter! > > > > Bob Griesel '84 FC31 WLII > > > > --- In WanderlodgeForum@yahoogroups.com, GARY MINKER > > > > > > The likelyhood of a milled copper and brass shunt failing are near a negative number unless you run 300% current through it and melt the solder joints.Ãâà The wire crimps, and hardware are more likely problems.Ãâà If you need to measure DC in a line or branch, get one of these less than $100 DC clamp on ammeters.Ãâà They tell you the current and the direction of flow.Ãâà Don't leave home without one. > > > gary > > > 85pt40 > > > > > > --- On Sat, 11/20/10, freewill2008 > > > > > > From: freewill2008 > > > Subject: [WanderlodgeForum] Re: Coach Batts overcharging > > > To: WanderlodgeForum@yahoogroups.com > > > Date: Saturday, November 20, 2010, 1:14 PM > > > > > > > > > > > > > > > > > > > > > > > > Ãâà > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Fred - In that case the instruments could be giving you a faulty reading. The ammeter uses a shunt which could have failed. That might lead to a faulty voltage reading as well. > > > > > > > > > > > > Another possiblity is a relay (solenoid) failure that is causing the charging system to max out, although I would expect that to show up on both house and engine systems. This leads to the controls mentioned in the other reply, so that is a good place to start. In any case check the shunt on that house ammeter so you know the reading is accurate. > > > > > > > > > > > > Good luck with it. > > > > > > > > > > > > Bob Griesel '84 FC31 WLII WA > > > > > > > > > > > > --- In WanderlodgeForum@yahoogroups.com, "Fred Hulse" > > > > > > > > > > > > > > Hi Bob > > > > > > > I have only one 300 amp alternator and have tested the regulator with another it's ok > > > > > > > Thanks. > > > > > > > Fred & Jeanne Hulse > > > > > > > Morristown,Arizona > > > > > > > 97 WLWB41 > > > > > > > > > > > |
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Messages In This Thread |
Coach Batts overcharging - Fred Hulse - 11-19-2010, 14:43
Coach Batts overcharging - freewill2008 - 11-19-2010, 17:12
Coach Batts overcharging - Wayne Kotila - 11-19-2010, 18:56
Coach Batts overcharging - Fred Hulse - 11-19-2010, 20:29
Coach Batts overcharging - freewill2008 - 11-20-2010, 06:14
Coach Batts overcharging - Fred Hulse - 11-20-2010, 08:20
Coach Batts overcharging - Ron Thompson - 11-20-2010, 08:29
Coach Batts overcharging - GARY MINKER - 11-22-2010, 04:58
Coach Batts overcharging - freewill2008 - 11-22-2010, 05:47
Coach Batts overcharging - GARY MINKER - 11-22-2010, 07:00
Coach Batts overcharging - freewill2008 - 11-22-2010 07:39
Coach Batts overcharging - Ron Thompson - 11-22-2010, 11:50
Coach Batts overcharging - Fred Hulse - 11-22-2010, 12:40
Coach Batts overcharging - Ernie Ekberg - 11-22-2010, 12:45
Coach Batts overcharging - Fred Hulse - 11-22-2010, 13:15
Coach Batts overcharging - Ralph - 11-22-2010, 13:36
Coach Batts overcharging - Fred Hulse - 11-22-2010, 13:40
Coach Batts overcharging - Fred Hulse - 11-22-2010, 13:58
Coach Batts overcharging - Ralph - 11-22-2010, 14:18
Coach Batts overcharging - Fred Hulse - 11-22-2010, 15:01
Coach Batts overcharging - freewill2008 - 11-22-2010, 15:04
Coach Batts overcharging - Fred Hulse - 11-22-2010, 15:22
Coach Batts overcharging - freewill2008 - 11-22-2010, 18:04
Coach Batts overcharging - Ron Thompson - 11-23-2010, 02:33
Coach Batts overcharging - Ron Thompson - 11-23-2010, 02:41
Coach Batts overcharging - Fred Hulse - 11-23-2010, 03:32
Coach Batts overcharging - Wayne Kotila - 11-23-2010, 18:02
Coach Batts overcharging - Ralph L. Fullenwider - 11-24-2010, 06:48
Coach Batts overcharging - Fred Hulse - 11-24-2010, 16:44
Coach Batts overcharging - Fred Hulse - 11-25-2010, 01:09
Coach Batts overcharging - Ralph L. Fullenwider - 11-25-2010, 03:26
Coach Batts overcharging - Ron Thompson - 11-25-2010, 03:35
Coach Batts overcharging - Fred Hulse - 11-25-2010, 03:38
Coach Batts overcharging - Fred Hulse - 11-25-2010, 04:04
Coach Batts overcharging - freewill2008 - 11-26-2010, 05:50
Coach Batts overcharging - freewill2008 - 11-26-2010, 05:58
Coach Batts overcharging - freewill2008 - 11-26-2010, 06:01
Coach Batts overcharging - Fred Hulse - 11-26-2010, 08:01
Coach Batts overcharging - Ernie Ekberg - 11-26-2010, 10:24
Coach Batts overcharging - Fred Hulse - 11-26-2010, 11:51
Coach Batts overcharging - Ernie Ekberg - 11-26-2010, 12:28
Coach Batts overcharging - Fred Hulse - 11-26-2010, 13:05
Coach Batts overcharging - Ernie Ekberg - 11-26-2010, 14:08
Coach Batts overcharging - Robert Johannesen - 11-26-2010, 14:21
Coach Batts overcharging - Fred Hulse - 11-26-2010, 14:44
Coach Batts overcharging - Fred Hulse - 11-26-2010, 14:46
Coach Batts overcharging - Robert Johannesen - 11-26-2010, 14:52
Coach Batts overcharging - Fred Hulse - 11-26-2010, 15:40
Coach Batts overcharging - GARY MINKER - 11-27-2010, 04:35
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