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Engine speeddoes not raise when put under load but produces power

Engine speed change

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First verify that the breaker for the outlets is not tripped and make sure that the generator is running at full operating speed. let it run for 5-10 minutes and check for output power. If there is nothing, there are two possible problems. One could be that the automatic voltage regulator is bad. The other is that the field needs to be flashed - a high possibility if the generator has not been run in a long time. There are many videos on the internet that show you how to solve both of these problems. Just do a search for No output from a portable power generator.

Posted on Jun 24, 2014

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Posted on Jan 02, 2017

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SOURCE: Low voltage

Most generators use a flyball type governor within the engine to control rpm; also there is a voltage regulator that tries to maintain voltage at about 115v. The voltage regulator varies the voltage to the armature increasing /adjusting magnetic force. Use a meter with htz or freq setting to adjust engine governor to 60 cycles. When the generator is producing 60 cycles, the engine should be turning 3600 rpm, max power range. At 3600 rpm the voltage should be 115 to 120 volts. Loading the generator will cause governor to try to maintain 3600 rpm. Check engine manual for proper adjustment of gonvernor and linkage. The governor mech should last the life of the engine, however governor system does wear out. Expensive repair. enjoy

Posted on Nov 30, 2008

  • 211 Answers

SOURCE: coleman 5000 generator will not idle up under load

Hi

You have to find the governor linkage.There is a spring adjusting by a screw to increese speed to get more power.Try to locate it.

best regards savumihai71

Posted on Feb 03, 2009

  • 5603 Answers

SOURCE: i have a 3500 watt vantage that does not seem to

Speed, unless VERY low will not cause your problem.

You likely have a failure in the generator section.

You need to determine if the unit is a permanent magnet rotor or a brushless type. IF it is a brushlesss type with rotating diodes on the rotor, it is likely one of the diodes has shorted. Also the capacitor across the regulating winding may have gone bad. either shorted or open.

You need to check the voltage.you are getting out. Unfortunately, mist meters will not read correctely unless the wave is sinusoidal and if a diode is out, the waveform will not be.

If the unit is a permanent magnet type, you may have a shorted field winding.

Posted on Oct 22, 2009

Testimonial: "Thanks for the quick response and help! I will definitely have the unit checked out and now know that I wasn't just doing something wrong."

  • 1388 Answers

SOURCE: I have a Briggs &

Depending on the engine, you will find an arm attached to a small shaft coming out of the engine block. This governor arm is where there is attached a governor spring and the linkage going to the carb. The governor spring is attached to the arm on one end and to either a bolt or a tab of metal on the other end. If attached to a bolt, you will find a lock nut and enables you to increase tension on the spring (pull harder) thus increasing engine speed. If you have a metal tab, by bending the tab away from the spring, you will be applying more tension. You will not be bending carb linkage. Before you make any changes, find a meter that can measure Hz . Plug the meter into house plug and notice that hz reading will be 60 cycles. Then read voltage at house plug, could be 115 thru 120 or higher. Your generator produces 60 cycles when it turns 3600 rpm. Before you make any adjustments, plug meter into outlet and check hz. If reading is at 60hz, the engine is already running at max indicating problem with actual generator parts and not engine running slow. If cycles low, adjust by bending tab pulling harder on the gov. spring, or adjust screw to pull on he spring. In either case, adjust a little and re-test. With engine running to produce 60 cycles, the voltage should be between 115 thru 120. Some generators have an adjustment screw to increase voltage on the voltage regulator inside the gen set. Look for Good luck

Posted on Sep 01, 2011

  • 1 Answer

SOURCE: gnerator not producing ac power

I recently had a similar problem during "Sandy". I forgot to turn off the hot tub before starting the generator and the house lightswhere barely lit, dim, and flickering under the load. I quickly shut itoff andthe hot tub, but not before frying half of my generator. It will only produce 110now, not the 220 usual adn I need to get it fixed. I imaging you may be experienceing the same thing if you can't reset it. My generator has two reset buttons right next to the outlets on the unit itself.

Posted on Nov 03, 2012

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HOW TO SWITCH 6260 TO 60HZ


6260 isn't a model number for any Ingersoll Rand generator.

Generally, though, if you have a generator that generates 50Hz and you want it to produce 60Hz instead, you adjust the governor to increase engine running speed by 20%... if the engine will tolerate that speed. The first thing you need to do is find out what speed the engine runs when it's under normal load. If that speed can't safely be increased 20%, then the generator head has been built strictly for 50Hz and there's nothing you can do about it except run a UPS between the generator and your load.

If the engine speed IS low enough to safely increase by 20%, then that's what you do.

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That is pretty much normal. When the AC engages it's compressor it triggers the idle sensor to increase idle to compensate for the huge load that an AC unit puts on a vehicle. If your AC is producing cold air, approx. 40 degrees on high, then it should be ok. Power loss is all part of the program with AC. It takes much more noticeable power to run an AC unit on a vehicle, and especially a 4 cylinder. Ever see your house lights dim a bit when you turn on the Home AC central air? :.) Every item under your hood connected to your engine steals power from the engine. The AC is the king of all takers of power.

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I have a 1997 lumina with 3.1L. the problem started with loss of power under load and p0300 code. check coils and vacuum leaks both OK.change spark plugs and wires.[same problem] check compression OK.


Since you changed the sensor we will assume it is working. When you disconnect it you put the computer in limp mode which stops it from using sensor values. If code 300 is the only code we will assume the coolant temp sensor and others are ok.
I would check fuel pressure with a gauge next.

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1 Answer

I have a coleman 6000. It runs for a whileand when I load it up it trips off.


Make sure the governor is working properly. When you put a load on it the engine should increase in speed slightly. Make sure the engine is running at the correct speed 3600 rpm. Try plugging in an item that draws less power such as a electric drill and see how the generator behaves. Also make sure the engine runs smooth while not under any load. Check the voltage from the outlet to make sure it is putting out 132 volts not under load.

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I have caterpillar disel genretor of 456kva capacity,when i switch on generator within halfhour of running it's EXHAUST MANIFOLD AND TURBINE GETS RED HOT. i am not able to understand why gets red...


It is quite normal for the exhaust manifold and turbo to get very hot, especially when the engine is working hard running at high speed under load. Every time the mixture in the cylinder is ignited there is a small explosion producing a BIG flame and a lot of heat to push the piston down. A lot of this heat goes out the exhaust. During daylight it is usually not noticeable, but at night it will visibly glow up to a bright red.

In relation to the oil pressure dropping, providing the oil level is at the correct level, there may be a restriction in the gauze filter on the input of the oil pump due to sludge buildup. Once the engine warms up and the oil thins out, the oil pump can't work at maximum capacity. The drop in RPM could be caused by the turbo getting insufficient lubrication and cooling due to the low oil pressure reducing oil flow to the turbo causing it to not work at its optimum speed and efficiency and therefore through reduced air flow into the cylinders the engine would tend to loose speed especially when under high load. The drop in RPM could also be caused by a problem with fuel flow to the injector pump causing the engine to run lean which would not allow the engine to produce maximum power and also contribute to higher exhaust temperatures because the governor would have the throttle wide open to try and maintain the engine speed when the generator is required to produce maximum output.

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I purchased a Coleman Powermate 5000 6 years ago: Ser: 94411583. Never really used it for any length of time. Kept for emergency. An electrician checked it for voltage output a short time ago. 240V...


Voltage is adjusted by raising or lowering the engine speed (governor adjustment), however one must also pay attention to the rpm because your generator was designed to produce 120 volts at 60 cycles while turning 3600 rpm. Your electrician should have tested for htz while testing for voltage. I would recommend re-testing under load and adjust governor to turn 60 cycles to see resulting voltage.

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1 Answer

I have a coleman 5000 that won't hold voltage at 110 volts under load. It fluctuates up and down. The motor is running steady. What could be the cause of this?


govenor problem maybe does the engine sound slower when a load is on.
you will need something to read the power frequency

3000 rpm produces 50hz uk
3600 rpm produces 60hz

so if you have a meter to measure frequency you will also know what speed the engine is running at

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I have a honda engine gx620 coupled with my generator and in tern connected through a power center to charge batteries and sync with my inverter. It's showing only 60hz dropping to 59hz and I need to know...


You did not mention how many amps your system is producing/drawing, however I don't think that you need to adjust the governor. Your engine can produce 18 hp at 3600 rpm. At 3600 rpm your generator is producing 60hz or cycles. As the load increases /decreases it has an effect on the governor thus the change in cycles. If the load increases past the capacity of the engine, the cycles will drop. To stabilize, reduce the load. 59hz is produced when the engine is turning about 3550 rpm. If you increase the speed of the engine to compensate cycles may increase past 60hz. 3650rpm will probably produce 61hz. Engine speed could be fluctuating due to other reasons (vacuum leak, dirty air filter, plug, etc ) if there is only a small load on the engine/generator. If you would still like to adjust the governor please email the load on the generator and I will help with instructions. Good Luck with your generator it is a very nice unit and built to last.

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1 Answer

Coleman 5000 generator will not idle up under load


Hi

You have to find the governor linkage.There is a spring adjusting by a screw to increese speed to get more power.Try to locate it.

best regards savumihai71

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3 Answers

Low voltage


Most generators use a flyball type governor within the engine to control rpm; also there is a voltage regulator that tries to maintain voltage at about 115v. The voltage regulator varies the voltage to the armature increasing /adjusting magnetic force. Use a meter with htz or freq setting to adjust engine governor to 60 cycles. When the generator is producing 60 cycles, the engine should be turning 3600 rpm, max power range. At 3600 rpm the voltage should be 115 to 120 volts. Loading the generator will cause governor to try to maintain 3600 rpm. Check engine manual for proper adjustment of gonvernor and linkage. The governor mech should last the life of the engine, however governor system does wear out. Expensive repair. enjoy

Nov 26, 2008 | Yamaha Electrical Supplies

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