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- เผยแพร่เมื่อ 19 มิ.ย. 2017
- Ways to check your capacitor,ohms,diodes on a small portable gen end.
macletech.com
tyler@macletech.com
Our company only caries parts for the brands we support (LCT, Wuxi, Launtop) but I would be glad to answer any questions over e-mail.
Note:The reading stated in this video are not necessarily the reading's for your end, for the readings on the generator end that you have call manufacturer of your brand of generator. - แนวปฏิบัติและการใช้ชีวิต
Measuring between R1, R2, L1, L2 to ground or the chassis should never read "zero". It should read infinite (open circuit) to the chassis or frame. The flashing "4" on your meter indicates an open circuit.
Ahh yes you are correct, I have never noticed that is what i said. Thank you
Thank you,
Excuse me, isn't neutral connected to ground in generators? And so, considering that one among L1/L2/R1/R2 should be neutral, why should be open loop between these contacts and ground? Thank you
@@andrealanzolla1798 Not when the wire harness is disconnected. pretty sure he said that.
@@integr8er66 Correct. I have a larger 8 kW brushless AVR generator and neutral is not bonded to the frame. Typically the panel will say "neutral bonded to frame" and as mentioned in the video, disconnecting the generator head from the control panel will disconnect the neutral from ground for testing.
Mr. Tyler, it was great to see you in live demonstration. Finally and late to get back to 5500 diesel generator repair. Installed the tank valve. Good information on troubleshooting my low voltage on generator. I will see to it and get back in touch. Hope I won't need any diodes.
Excellent informative video. Thanks so much.
Thanks so much for this video. The manufacturer sent a diagram with a brush holder so I knew trouble was coming. You are the man.
Glad I could help!
confronted by a salvaged, "Irma" submerged Aurora 6800sde, I wanted to attempt a rescue, and found this video, showing essentially the same gen-end! Am very grateful for your help, Tyler. I hope actually taking apart the gen will be straightforward; maybe you could show that as an add on for this GREAT learning video! dennis in jGoodland, Fl
,MACLE Tech, thanks a lot for this video which is really very helpful
I have a old Wen d6000 Diesel and it seems to have the same Diodes encased with the curve shape. any place to find replacements for these? I searched your website and many others. I'm just not finding them.
thank you.very good desde cancun México.gracias buen vídeo para conocer el generador sin escobillas
Hi. What about the "S" conector, two wires come from there, same like the capacitor but those cables goes to a black box to the main panel. Any idea of the fuction it has?
Great video.Thanks man
Great video my avr has four wires one green a white an two blue the other side has two blue 1white an a grey wire how do i connect them. The harness was missing when i brought it used...its a craftsman 10500 7000watt..
Hi there can you tell me how the power gets to the rotor winding and what those diodes do and what there connected to? and how its regulated from Fred in England
Thanks a lot for all this really useful information
Thanks, great info.
Thanks for this video. From philippines.
good information
Great video
What’s the purpose of the diode?
Wow sir nice video ..thanks
Hello MacleTech, If I understand this right, the rotating field in a brushless gen has 2 sets of
windings? one set sakes in a.c. sent to a fw rectifier bridge and sends d.c. to the other
winding? The capacitor is used to hold a charge on the stator windings so rotating field will
have a voltage induced in it when it starts to spin, that a.c. is turned to d..c to make a stronger
field for the generator to build up.
Hi guy very nicely done I have to go check a friends out tomorrow I learned a lot
thank you
Professionally laid out with the expected test values...very useful for the self repair person. Please comment on the expected life of these 178F diesel engines....? Ours lasted about 4 hours before splitting the case.
I have seen these engines last for thousands of hours and i have also seen a piston go through the cylinder wall after 30, most common they do last a very long time with proper maintenance, check valves periodically keep on top of the oil changes and never ever try to start them with starting fluid or any thing like , if anything use WD-40.
Good
How chek avr is working not working " yamamoto 43570
I've got a 10k watt unit I picked up on the cheap. One of the 120 legs works just fine, the other blows its breaker anytime a load is placed on it. I fired the parts cannon at it without investigating thinking it's just the breaker. However, a replacement breaker results in the same.
I guess I gotta start diving a little deeper into the issue. It's a capacitor-excited field coil setup.
Seems weird to me. and u r sure it is a 120 volt winding? as a brushless job would have 3 stator windings, ur two 120 volt windings, one side of each hookt to a white wire for neutral to get the 120 volts off each leg and an exciter winding which should go to the capacitor.
Thanks. Very helpful
My brother I have a generac ET 2400 generator and I need some help on how to connect the capacitor, I don’t want to just connect things that I don’t know much about. Can help me on that?
You could get a good shock and make u pay more attention, if one's heart is that fragile, they should not be messing with this sort of thing. Is R1 and R2 returns? for L1 and L2 is the neutral floating or bonded? If R is return, to get 240 would it be R1 toL2, getting neutral between R1 and L2 and 240 from L1 to R2? Going by Dan Burch any continuity between l1 R1 L2 R2 to ground would be a bonded neutral?
I have an 10 year old 3000 watt Chinese clone Generator that has an AVR in it. for some reason it just stop producing power and then will come on again 10 minute later. But I have also got a very old 7.4 watt Honda brush less welder/ generator that I also use I found that once I get it running right it will actually run the whole house. As in fridge freezer Even the Ltd TV washing machine etc. it will also run any electrical appliance that go's though a step down that is that converts 240 v AC current to say 12 DC current. And over the years It has broken down some times But because my Generator not under a great deal of load It wont massively burn out a huge hole in the wiring usually just a single wire the stator have found it so easy to repair as ever now and then I would burn out a a resistor And at one time when I burned out that wire in the stator I just soldered it back up again. and then epoxied the broken wire if you use one of these for the house make sure to use a power surge conector
Also..if you have a working generator it doesn't hurt to take the cap off and record the ohms of the stator with a sharpie on the generator housing for future reference.
Excellent, clear well presented video
Nice video except two places. At 6:11 you said resistance should always be zero, a zero reading is a short to ground (the case), which not the case here. At 8:42 you show symbol for a capacitor, not an "ohm" (resistor) symbol. Nice job otherwise.
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Very helpful video
Keep up the good work
Thanks a ton
I presume brushless gens do not have AVR units is that correct? I am not sure.
that is correct they run off a capacitor and diodes.
can i change the capacitor for a generic one of 35mf 'y have a problem with a generator egual than this a change by another an i do not have genaeration please help me and excuse my bad english
You should stay within the 5% range of your original capacitor rating, but we usually go up or down 2 µF if we do not have the exact cap in stock. ( example: if we need a 26 µF cap we usually replace it with a 28µF cap or a 24 µF) it does not cause a noticeable difference in the output.
I tried to email you but it wouldn't go through.
I have a problem I've been trying to figure out with my generator. On the end of the generator I only have 3 of the four nodes being used (R1,R2,L2) and L1 has nothing connected to it at all. Is this normal? I'm wondering why this is the case. With this configuration, how would I test it for problems? It was made to produce 120 and 240 volts. Any help would be appreciated!
I have seen that setup b4 on some launtop brand gens, mostly they just use the 1 neutral wire coming from the panel with 2 mains (witch is not good because it causes back feed but still works) . As far as coming out of your end are there still 4 wires with 2 on 1 node? If so the testing should be the same, your hot to the neutral node would still show the 120 and 240 between the 2 main hots.
OK TANKS
Exellent but i need litle help .. My generator is brush typ I want make it brushless ..its possibl or no..just ansr..sir
E-mail me and i might have something that can help you out tyler@macletech.com
I have tahoe industries ti7000lxr diesel generator. It runs 10 to 20 seconds then shuts down. Voltage is 10 volts or so low. Runs fine until flip breaker with no load. Replaced capacitor with cheap on with no change. Any ideas for me.
the engine shuts down when you flip the breaker?
Excitel router ka connection bataiye
WHAT IF THE REPLACEMENT CAP IS 10uF LOWER?
Then you will most likely see a low voltage output. You should stay in the 5% range of your original l cap and if you cant only go up or down 2 µF or so.
I have 8000 ridged generator it run but no power what’s seem to be the problem
I need a little more info than that..Is it brush or brushless, what are your rpms, your ohms readings?
Can i know the model this generator? Im looking for wiring diagram..tq in advance
this is a Titan 7500D with a LCT engine and gen end
Great video. where the video to test a brush generator or avr?
We currently do not have one. AVR ends are....not so direct. We are working on a step by step but it most likely will not be a (do this to fix it video). I have some documents i could e-mail over if wanted. tyler@macletech.com
Except you don't want Zero ohms to ground when you check the windings for a short to ground you want infinity , no connection at all. An OPEN.
I can't find the capacitor value in my generator!! In my case Generator can generate 600v electricity of 2.3A, it is a brush less alternator...
what is your generator supposed to produce as far as power wise 7200watts 8000?
Thanks for the video. I bought the engine shown in this video from someone who said the generator he had broke and he had taken the engine off, given the electric start motor to a friend, and sold the engine (to me). I hear it's very common for these generator ends to fail, and knew there wasn't a lot involved with fixing them. Of course, I'm happy I got a reasonably priced engine. :D
Question -- is this unit really made by the LCT/Liquid Combustion Tech company, or is it just a Chinese knockoff using a well known company name? Reason is, I could not find any mention of this diesel engine on the LCT company website.
Also - does this engine come with a flywheel-mounted DC charging coil for the electric start battery, or is the engine-mounted voltage regulator powered from the generator end diodes? I can't see any wires coming from where the charge coil is normally installed, and have purchased a new charge coil and permanent magnet rotor to install to allow the engine to keep a starting battery charged since I've re-purposed the engine for use on a wood chipper. The engine has a DC voltage regulator attached to it, but the leads had been clipped and I didn't see the 2 leads coming from where the flywheel rotor is usually installed, so I'm going to have to pull the flywheel anyway, but was just curious if they normally tap off the exciter coil/diodes to avoid the need to install an engine-mounted coil. Thank you for showing how to fix the generator end. I have a gas powered Winco generator which is having trouble starting motors far below the rated power so think I may eventually troubleshoot that unit using the info you presented here. Much appreciated.
As far as LCT they no longer manufacture or import the diesel because of EPA regulations, the DC voltage regulator gets its power off of the two blue wires(there should be two sets) on the gen end, it should have a connector the same as your DC connection. Most of the units have a extension wire that goes from the gen end to the DC regulator.
What is the exact type,
of this type of generator ?
I think someone has fitted a brushless diesel generator to a brushed motor
This generator was Titan 7500D with the LCT engine on it. It was brand new and i know they aslo had a H2 model that did use brushes.
Oh ok i have a problem with mine its brushed on the rotor.
I cant get any voltage out of the main windings.
And no voltage from the rotor wingings.
It has no capacitor except for the rotor windings in the control module
i need a head gasket an manual model 8055 titan diesel generator
you can give us a call @ 1-800-845-4141 we support titan diesel parts
Good video! Are you still replying to comments????
I try to when I can, best way of contact is E-mail.
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