Generator Not Cranking - Onan Microlite 4000
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Oct-31-2014 12:40 PM
-Tested batteries, showing 12.8+ and I've got 3 deep cycles.
-Ran the engine and tried starting with engine running.
-Half a tank of gas.
-Found that the 30 amp breaker switch was off. Turned it on but still doing same thing.
-The last couple times out, it was having a hard time starting, and I usually had to run the engine to get it started.
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Nov-04-2014 04:11 PM
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Nov-04-2014 02:25 PM
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Nov-04-2014 12:52 PM
The crazy solenoid uses the generator as the starter motor, then when it's spinning I release the start button. That converts it back into a generator. At first I pushed the button to start the genny and heard the fuel pump running, but there was no cranking. I tested all the electrical and narrowed it down the starter solenoid. I found a NOS part for $25 dollars and the genny started on the second try.
Jose
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Nov-04-2014 10:01 AM
2006 Jeep Liberty 4x4
Blue ox Tow Bar
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Nov-03-2014 03:44 AM
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Nov-02-2014 04:27 PM
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Nov-01-2014 04:45 PM
Remove starter and put on bench
Scrape a distinct line on the starter body and over onto the end cap. You need to replace the cap exactly like it came off.
Remove the two l-o-n-g bolts holding the cap to the starter body. Removing the cap may mean prying it off with a couple of screwdrivers.
Look inside. Can you see the brushes (or what's left of them)? Use a pair of needle nose pliers. CAREFULLY lift each brush against the brush spring. Are the brushes sticky? Clean out using brake clean so you can see better.
Are the brushes worn down so far that their braided copper wire leads very near to the steel brush holder frame? That means the brushes are worn way down. If you seemingly un-stuck the brushes with movement and brake clean, reassemble the starter and test the motor in your bench with a set of jumper cables. The motor will jump with torque so if you have a vise, use it, if you have a vice, use that too. No joy with the jumper cables? Time for the yeller pages.
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Nov-01-2014 03:13 PM
Try to get the starter motor to move a bit the brushes might be not making a good contact - My Honda lawn tractor does that every now and then turn the motor a bit and all is good for another season
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Nov-01-2014 02:50 PM
If your referring to moving the flywheel, I've tried that a few times and it is spinning freely and doesn't seem to change anything regarding cranking.
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Nov-01-2014 02:43 PM
Get a long flat blade screw driver and crank over the engine a few degrees
Seen the starter motor get "frozen up" and this cured the issues for many years
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Nov-01-2014 12:10 PM
So now I should look at starter replacement?
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Nov-01-2014 05:02 AM
If you need a service manual. Go to smokstak Onan section post a full model and serial number. With an email address. You will receive a manual for free.
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Oct-31-2014 09:56 PM
Texas, can you give instructions on a simple test to determine if power is getting through to the starter? I assume it's fairly easy with a volt meter but electrical testing doesn't come easy for me.
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Oct-31-2014 05:51 PM