Help with pump/electric motor

[99yam40]

Oh so you answer his questions, but not mine

[TownsendsFJR1300]

If I understand correctly, your trying to remove the armature from the crankshaft of the compressor)?

Like a gas powered generator? (separating both units from each other).

If so, the shaft is TAPERED. If there is a nut / bolt hold the end on, obviously remove it.

Then, rap the armature with a rubber mallet, (around different spots but on solid metal). It'll pop off with 2-3 wacks..

Had to to the same thing to an engine and generator I worked on (no place for a puller(and that was a 10 HP, 6500 watt generator


Yes Virginia, it's that simple....





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[boscoe99]

If you are trying to save the crank/counter balance part I would drill and tap to hook a puller to. if not saving I would drill bigger holes and split the part off the shaft. did both rods fit onto that one spot on crank? does not look big enough for both rods

I am not trying to save the crank shaft or the counter weight. Only want to be able to use the motor.

Both rods slide onto the crank shaft. They are only about half and inch wide and run very close together. Separated by what appears to be a stainless steel spacer.

Photos available upon request.

[boscoe99]

If I understand correctly, your trying to remove the armature from the crankshaft?

Like a gas powered generator? (separating both units from each other).

If so, the shaft is tapered. If there is a nut / bolt hold the end on, obviously remove it.

Then, rap the armature with a rubber mallet, (around different spots but on solid metal). It'll pop off with 2-3 wacks..

Had to to the same thing to an engine and generator I worked on. Easy pezzy.

.

Trying to remove the components that are attached to the end of the electric motor's shaft. What we are calling a counter weight and I suppose the connecting rod journal of a crank shaft.

How the journal is attached to the counter weight and how the counter weight is attached to the electric motor shaft are the questions I suppose. I am guessing they are press fit but that is all that it is, a guess.

[TownsendsFJR1300]

How the journal is attached to the counter weight and how the counter weight is attached to the electric motor shaft are the questions I suppose. I am guessing they are press fit but that is all that it is, a guess.

It's a simple tapered fit. Too simple for the factory to press it and not necessary.

Literally smack on armature (rubber mallet), it'll pop right off..



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[walleye1]

Set it in your lap and with 2 big screw drivers prying
under the counter wait prying up have a neighbor
with a brass punch and a hammer smack the crap
out of it.

[pstephens46]

Set it in your lap and with 2 big screw drivers prying
under the counter wait prying up have a neighbor
with a brass punch and a hammer smack the crap
out of it.

Might wear a protective cup also..

[dray0151]

Might wear a protective cup also..

I don't know the other day Boscoe was saying he had trouble peeing, maybe a swift swat with a slip of the hammer would break apart any obstructions thereby opening up the tube????

[boscoe99]

I don't know the other day Boscoe was saying he had trouble peeing, maybe a swift swat with a slip of the hammer would break apart any obstructions thereby opening up the tube????

My problem is peeing too much.

I never get in the car for a trip of any length without taking a good preventative pee before departure.

[pstephens46]

My problem is peeing too much.

I never get in the car for a trip of any length without taking a good preventative pee before departure.

Me too and still had to stop twice on the trip back from Atlanta today.

[99yam40]

It's a simple tapered fit. Too simple for the factory to press it and not necessary.

Literally smack on armature (rubber mallet), it'll pop right off..



.

did you not see the pics he posted? nothing holding the thing on the shaft, sits flush with end of shaft. I have a portable air compressor I am playing with right now that needs a bearing on the rotor and at least it has a bolt running thru the side of counter weight to lock it to rotor shaft. still does not move with it removed. But I will try some different things before giving up on it. his pics do not show anything holding it all together, and a 6 hp motor turning something like that with nothing holding it together I am sure it is not a just a tapered fit

[boscoe99]

did you not see the pics he posted? nothing holding the thing on the shaft, sits flush with end of shaft. I have a portable air compressor I am playing with right now that needs a bearing on the rotor and at least it has a bolt running thru the side of counter weight to lock it to rotor shaft. still does not move with it removed. But I will try some different things before giving up on it. his pics do not show anything holding it all together, and a 6 hp motor turning something like that with nothing holding it together I am sure it is not a just a tapered fit

The electric motor has a flat on the side of its rotor shaft. The crank shaft journal has a flat on it that interfaces with the rotor flat side. I was wondering if and when the journal is pressed into the counter weight it is used to lock all of the parts together. Going to borrow a slide hammer from the local auto store tomorrow and see if the journal will pull out freely.

I am now thinking I don't want to damage anything getting the motor separated from the pump housing. Because if the motor won't serve my purpose I will put it all back together and sell the air compressor for what I can get. Don't need another air compressor. I just need a darn 5/6 HP electric motor. Like many projects mine has gone over budget and over schedule.

[boscoe99]

Thanks to the inner web I found a parts diagram.

I see nothing holding the parts together.

[dray0151]

Break out the hammer and beat it off! Why haven't you taken those four bolts out of the cover that is under where the pistons go? Would the whole thing not start to come apart then?

[boscoe99]

Break out the hammer and beat it off! Why haven't you taken those four bolts out of the cover that is under where the pistons go? Would the whole thing not start to come apart then?

I have removed the four bolts. The pump housing is sandwiched between the crank journal/counter weight and the rotor of the electric motor. I can remove the housing with the rotor but I am still faced with the removal of the counter weight/journal from the rotor, so as to remove the pump housing.

I don't want to start beating on stuff that might need to be reused later.