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Mark 7 Motor
Posted: Sun Aug 07, 2011 4:20 pm
by iaokie
I'm getting ready to blow out and clean up the M 7 motor
Need advice as to what or more importantly what not to do
Posted: Sun Aug 07, 2011 5:19 pm
by wa2crk
When I take a motor apart I put a piece of masking tape on the outside of the field windings and the use a magic marker to make alignment marks on the winding set and the end castings. Put one slash mark on one end and and a double set on the other end. This makes the alignment a lot easier when you have to put the long bolts back in to hold everything together. Open the motor slowly and note where the centrifugal switch is and how it activates. If you have to remove the switch mark where the wires come off the assembly to make reassembly a lot easier.
Also when you order bearings make sure you remove and measure everything carefully. The Emerson motor that I just did for my son had two different bearings but they were the same number. I measured one end of the shaft and assumed that both ends would be the same but that was not the case. The bearing on one end had a 5/8 bore and the other end is 17mm bore.
Work slow and carefully
Bill V
Posted: Sun Aug 07, 2011 5:23 pm
by JPG
iaokie wrote:I'm getting ready to blow out and clean up the M 7 motor
Need advice as to what or more importantly what not to do
Do not force anything. There be wires and moving parts inside. Make sure you support it at all times(its heavy). The bearings may be stubborn about getting pulled out of their socket. Do not let them get cocked. Try to remove the rear end cap first(the vacuum blower end).
Advice from one who has never taken a
M VII motor apart!;)
P.S. mark the end caps and shell so that they can be reassembled in the same position. Some folks smack them with a small chisel(one mark on each end, but on both end and shell.
P.P.S. Looks like Bill already said that.
Posted: Sun Aug 07, 2011 6:27 pm
by iaokie
OK thanks guys
Nice and easy
Mark everything
Tight sheave
Posted: Sat Aug 13, 2011 10:03 pm
by iaokie
Needed a little help removing sheave
After about an inch it came off fairly smooth
Shaft looks good
Now will see what's inside
Wrinkle Paint
Posted: Sun Aug 14, 2011 10:06 pm
by iaokie
Started to paint using the black wrinkle
Didn't look so good yesterday but set it out in the direct sun light today and it started getting hot and curing
get the rest tomorrow
Haven't seen one painted black so don't know how ugly this is going to turn out
Found both preventive maintenance items @ good ol Ace hardware[ATTACH]14026[/ATTACH]
[ATTACH]14027[/ATTACH]
[ATTACH]14028[/ATTACH]
[ATTACH]14029[/ATTACH]
Posted: Mon Aug 15, 2011 5:04 am
by jayp413
I really dig the color! Nice work!
Posted: Mon Aug 15, 2011 11:52 am
by jcraigie
Looking good. You have the basic maintenance supplies now. I like the black, never seen a black one before.
Posted: Wed Aug 17, 2011 11:38 pm
by Shop_Smith_Poppi
Does anyone have a schematic drawing of this part.
http://www.shopsmith.net/forums/attachm ... 1309739029
I met someone today that has a machine that can carve the part out of plastic or nylon stock. but he needs a detail drawing of the part since I do not have one I don't know the exact size and details of this part.
Posted: Thu Aug 18, 2011 12:54 am
by damagi
Shop_Smith_Poppi wrote:Does anyone have a schematic drawing of this part.
http://www.shopsmith.net/forums/attachm ... 1309739029
I met someone today that has a machine that can carve the part out of plastic or nylon stock. but he needs a detail drawing of the part since I do not have one I don't know the exact size and details of this part.
If you promise to have him make me a few, I can send you one intact thats in perfect condition
