Question about Electrical Supplies
Homelite generator, ut03781-b, model # lr 4400
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Posted on Jan 02, 2017
Some manufacturers tend to fudge the numbers and throw around the 'peak' output power as continuous and it isn't.
Peak (or surge) is the power a generator will handle as starting current (for example) for a motor and can be 120-140% of the actual continuous power.
Check you owner's manual, find the detailed specs which will normally contain the maximum continuous current rating. If it is listed separately for 120 and 220 (240) volts look for separate current ratings for each output.
By multiplying the current(s) times the output voltages you can find the total resistive output into a purely resistive load such as an electric heater.
For example: 120VAC X 20 A=2400 watts. If other outputs are available such as 220VAC, multiply its current rating: 10A. or 2200 watts Adding those two results 2400 2200=4600 watts will give you the rated power of a unit.
You can also recognize stupid power claims if the engine's horsepower is given. One (US) HP = ~746 watts. Since no generator is 100% efficient, its a fair rule of thumb to guesstimate the available electrical power at ~70% of the engine's rating (although, this is often also wildly optimistic). 10 HP X .7= ~746 X 7 or a bit over 5,000 watts.
Posted on Oct 03, 2010
SOURCE: How do I remove the
Here is a copy of the owners manual and it has an exploded diagram that you can follow to remove the generator part. When you take off the back mount and then you will see inside a coil that rotates, this is the rotor, and a coil that is stationary around the rotor, this is the stator. Make sure that you take good photos and mark all wires that you disconnect, this helps in re-assembly later. To remove the back support called the brush head, you need to remove 4 long bolts and one in the center that holds the rotor to the engine. Gently tap the brush head away from the stator with a small hammer. You might need a small blade screwdriver to pry, remember GENTLE is the word here. Now, you might have to block up the stator so that it is supported since the brush head is removed. The stator might need some gentle prying to remove it from the engine. When pulling the stator off, be careful that you do not drag it on the rotor, this might damage the rotor. With the long bolt that held the rotor to the engine, screw it in and leave about 1/8" of it out so that the head does not make contact with the rotor shaft. Now with a small hammer, strike the head of the bolt while at the same time pulling on the rotor towards the head of the bolt. The rotor should come loose and you remove the bolt and pull the rotor off gently. To install, you never need to use the hammer to mount the parts.
Posted on Dec 26, 2010
I have the same unit and same problem.
I have lost my owners manual. Did you figure out what needs to be done to correct the no output issue.
Posted on Jul 13, 2011
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