Question about 1972 Aermacchi Sprint 350

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How do you get the generator armature off of the crankshaft.

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Hi Timothy, I am sorry you can't find the first and best tool you ever bought for your Aermacchi but despair not for a mere $0 you can download another one. For more information about your issue, please visit the websites below. Good luck and have a nice day.
Sprint 175 250 350

Btw, I’m available to help over the phone in case u need at

Posted on Oct 17, 2015


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Posted on Jan 02, 2017


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1 Answer

How do you split the engine from the armature on older Lincoln Red Face welders?

Remove the roof, front panel, exciter brush holders, exciter nut, centering collar, exciter armature, exciter frame, generator housing, then the main armature. Support the engine carefully while doing this. I am a certified Lincoln tech and I do this monthly. Cutting the bars in the bell housing to get to the flex plate bolts can lead to a broken crankshaft. I have a poor fellows broken crankshaft here to prove it. So, please do it correctly and carefully. Also, change the armature bearing. It's cheap insurance.

Feb 26, 2015 | Lincoln Welding Tools

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Have a newage stamford alternator c20a kva 15.625 bolted to a deutz model f2l912 engine and have tried to pull the 2 components apart but can only get the 2 parts about 1 inch apart anybody got the an

from what you are describing the generator is a 15 kva unit bolted to the back of a deutz engine
check the end of the alternator armature for a bolt head. it is possible that there is a long bolt going through the centre of the armature shaft and holding the armature to the crankshaft on a taper
some older units used 4 rubber blocks in the drive from the crank shaft and there is a plate to retain them in place ( They were a safety device to protect the unit from damage if the mains power come back on while the generator was running. The out of phasing would stop the armature and rip the rubber blocks up)

Dec 30, 2014 | Cars & Trucks

1 Answer

How to seperate the engine from the generator

Generators are getting more complicated due to the addition of solid state regulators and capacitors. In the old days, there was only brush pack and diode pack. If you would like to seperate the generator to repair the engine you must make sure not to damage wiring or brushes. You will need to remove the stator first so remove back cover to expose bolts holding stater to bell. Make note of all connections from stator to panel and remove all the wires. Remove brush pack if brush type. Pull stator out exposing the armature. Armature has center bolt to crankshaft (remove bolt). The armature is sitting on tapered engine shaft that may be rusty. Apply oil to shaft of engine directing oil to the tapered part (wd40 or similar) from the bell side and thru the bolt hole. Notice the two sides of the armature that are lamanated steel. Using small piece of hardwood against lamanated part rap solidly with heavy hammer once on each side being carefull not to damage metal or winding. Should pop loose with first or second hit. If no joy, re-apply oil but follow with a shot of carb cleaner. The carb cleaner will make the oil penetrate deeper /faster. Good luck

May 25, 2013 | Electrical Supplies

1 Answer

I'm fixing a coleman powermate 5000W and i need to know how to get the armature back on to the crankshaft

Best I can do is the IPB, at least it will show you where things are supposed to go. Make sure when you put it back on that it is as straight as you can get it or if possible, leave bolt loose and tighten after rest of housing is in place, but from IPB view this might be dreaming.

Oct 06, 2012 | Coleman Powermate Powermate 5000W...

3 Answers

Remove motor from generator

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

Jul 30, 2010 | Briggs & Stratton Briggs and Stratton...

2 Answers

Pull armature on generator from engine

Put the armature thru bolt in and back off about two turns. Smack the thru bolt hard with a hammer and the armature will release from the tapered crankshaft. You may damage the thru bolt. If so either get a new one or use a piece of all thread and a nut.

Apr 10, 2010 | Coleman Powermate Premium Plus 6250W...

1 Answer

Separate the Crankshaft and the generator armiture

Here is the secret.... Remove the end cap of the armature and the long bolt securing armature assy to the engine shaft.

Tip the generator vertical so that the bolt hole is UP.

Put several rags on the back of the engine that is facing up. (Important)

Find or purchase a bolt of exact size at least 3 inches long that will screw into the hole that is facing up.

(With bolt in hand)

Fill the hole all the way to the top with any OIL.

Thread the bolt into the hole and turn with a wrench.

When the aramture separates it most often will make a BANG and scare anyone nearby!

Lift armature away from the engine.

Use rags on the back of the engine to clean up oil mess.

That is it in a nutshell.

Thanks for using FixYa!


Feb 16, 2010 | Coleman Sport 1850 Generator

1 Answer

I have a coleman 5000W generator and it leaks oil where the engine is put together. I want to know how to seperate the armateur from the crankshaft.

unscrew the bolt from the end of the armature from there on it is just a friction fit try tapping it on the steel core with a copper mallet to work it free

Jan 29, 2010 | Coleman Powermate Powermate 5000W...

1 Answer


It maybe a crankshaft seal.
you will have to remove the genset from the engine.
Normally there is a Thru bolt aprox 12" long that is attached to the crankshaft.

1) remove the genset windings/housing from engine
2) remove the thru bolt
3) with a 2x4 block of wood laying on the metal of the armature (NOT the windings)
4) forcefully wrap with a large hammer, DO NOT hammer on the brushes/comutator bars. Only on the metal housing that has the windings around it.
*the shaft is tapered, and it will take a 'jar' to seperate the crank and the armature.

I’m happy to assist further over the phone at

Nov 23, 2009 | Coleman Powermate Premium Plus 6250W...

1 Answer

How is the armature attached to the crankshaft on a Coleman Powermate 54 series?

the rotor has one bolt that goes through the rotor shaft into the crankshaft. the rotor is tapered to fit the crankshaft. remove the bolt and use a brass drift pin on the rotor shaft and give it a hard rap with a hammer. the rotor should come right off the crankshaft.

Oct 24, 2009 | Coleman Electrical Supplies

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