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Low 5.5 volt output on my power boss 5500 generator set.. What is wrong?

Power Boss 5500 ith Briggs and Stratton engine. Lost 110 output.. When Measuring at receptacle when running the peak output is currently 5.5 volts. What can I do to fix it..

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: I have a Briggs & Stratton Generator 5550Watt model 030253 That is showing an output of only 4.6 V

Have the same generator. Shows only 3 Volts. I took the generator apart and found that the stator winding was burned. Can buy a replacement stator for about $250.00.

Posted on Sep 22, 2010

  • 185 Answers

SOURCE: I have a Briggs and Stratton 5500 watt Generator

Hello, I would not advise you to adjust the speed without a frequency meter. for 220 volt operation, you will have to use the twist - lock receptacles and not use the neutral in the receptacle. This means one of the generator's hot leads is going to be the neutral in your system. The frame of the generator may be connected to the neutral of the generator, so be careful so that you do not receive an electrical shock. The voltage is adjusted within the receptacle box. There might be a small hole on the right side of the receptacle box that you can insert a small blade screwdriver into to make the voltage adjustment. You do not need to change this much to change the voltage. Now, the frequency is adjusted by a self-locking nut located under the air cleaner right side, when facing the engine. There is a spring on this nut / bolt assembly. I think it is a 5/16 nutdriver or socket that you need for this. Turn counter clockwise 1/8 of a turn. This will slow down the generator to about 50 - 55 hz. This is okay if you are running at around 52 hz. As the generator loads, the rpm will drop down. A frequency meter would be great to use here, as a too low rpm could burn out electrical motors and other equipment that you are using. Feel free to contact me joeleier@gmail.com www.freelancemissions.com

Posted on Jan 22, 2011

Testimonial: "Thank you for the quick response. Great advice and outstanding instructions."

kel1guy2002
  • 3740 Answers

SOURCE: Hello, my Briggs &

Hi and welcome to FixYa. I am Kelly

Usually when you have a lower voltage output that is yet above 150 VAC the problem is as simple as the engine is no longer running at full speed. This could be caused by binding carb or governor linkages but more often than not the Governor adjustment screw has backed off over time causing the engine to gradually slow so the output voltage drops. The user does not notice it so much until the output drops more than 15% and you notice dim lights... slower running equipment etc.

Look for a circular plate / governor speed plate near the base of the governor lever but off to one side that has a spring that attaches to the governor lower end of the governor. There should be a screw with a locking nut. Loosen the nut and turn the adjusting screw clockwise to increase engine speed. (You may have to barely loosen the pivot nut on the governor speed control adjustment plate to make the speed adjustment.... tighten when done with speed adjusment) Watch your output voltage and adjust the voltage to 225 VAC with NO LOAD. The voltage will drop as loads are added. Make sure to tighten the lock nut on the adjusting screw or in a matter of an hour you will have low voltage again from engine speed dropping. What ever you do.... DO NOT adjust the governor arm base attach point where it attaches to the engine.

Just so you know a weakened governor spring can cause the speed drop also. If the speed keeps dropping with extended use, you may have to change the spring that goes from the lower end of the governor arm to the governor speed adjustment plate.

Thanks for choosing FixYa,
Kelly

Posted on Apr 20, 2011

Testimonial: "sound bright advice, excellent"

stewbison
  • 577 Answers

SOURCE: I have a briggs and

Hello, First figure out what the load per leg is on your generator. Are you using the 240 Volts because this is two 120 AC volts legs and they are 120 degrees out of phase with each other.

You will need to figure what the power factor is for each phase on this generator. To figure the power/wattage by using ohm's law. Voltage times Current will give you Watts. Example: If the generator is generator 240 volts the maximum current available is about 23 amps. The maximum current for 120 volts will 46 amps. Therefore, the maximum current per 120 volt circuit is 23 amps for one circuit and 23 amps for the second 120 circuit..

I would try replacing the circuit breaker with the same amperage breaker. Also, watch what the generator load is per circuit. You can install current meter for each circuit. This will give a good indication of which circuit is pulling more load than the other circuit. GB...stewbison

Posted on Sep 06, 2011

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