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Question Product: Coleman Powermate Powermate 5000W Generator Question ... it would crank for a second, then i open the choke, it would die, would not stay ...
I am assuming that you mean the generator head from the engine. If this is so, 1st remove the end cover from the gen. head. You will see a bolt that goes through the rotor shaft to the engine shaft. The engine his a tapered shaft, that the gen head bolts to. 2) Remove the long bolt from the rotor shaft. 3) Remove the 4 long bolts that hold the housing ends together. 4) cut a length of rod that is smaller in diameter than the rotor shaft bolt and about 1/2 inch shorter. This will be used as a push rod to separate the engine shaft from the rotor shaft. 5) There are threads at the beginning(inside) of the rotor shaft. Most likely metric. Find the right size bolt, approx. 1" long. Screw in until contact with the push rod. (If possible, use an impact wrench to make it easy.) Tighten til the shafts "pop loose." One suggestion to keep the engine from rotating while doing this is to remove the spark plug, stick a length of small rope down the hole, leaving some hanging out, rotate engine until piston packs against the rope and stops the rotation. 6)now that the gen head is removed, the engine mounting end can be removed. Good luck.
Unbolt and slide the stator over the rotor exposing it. Then simply unscrew the one bolt holding it to the crank. In my experience you need an impact to get the bolt out with spinning the engine and the rotor may need some negotiation to get off. Try a rubber mallet or a sledge with a block of wood, also may need to use a puller as well. Some come off easy but remember you can only hit a magnet so many times before it begins to lose magnetism.
In any power generator installation it is always advisable to have a ground/earth rod (minimum 3 ft/1 metre long) attached to the frame of the generator, especially when connecting ancilliaries such as yuor transfer switch. The Earth and Neutral pins of the output sockets on the generator should also be interconnected. They are usually linked at the factory on assembly.
aramature must be removed to get to the mounting plate it will slide out off case loosen long bolt in center of armature hold armature and hit bolt briskley will pop off be careful putting arm back may be 2 brushes inside have a helper hold brushes back
Here is how I did it. First unscrew the bolt holding the armature to the crank. Measure the bolt length and thread sizing(mine was 5/16-24) Go to menard's or any hardware store and buy a piece of un-threaded rod the same diameter. Buy a die so you can thread the end of the rod. cut the rod one inch shorter than the bolt length and make a kerf in the end for a screw driver blade. Now measure the inside diameter of the armeture hole( mine was 3/8) I then took a 7/16 tap and threaded the end of the armeture. Now screw in the rod you made, then screw a bolt into the end of the armeture and this will push the armeture off the crank without damaging it.