GE Backend Motors

[LancerLanesMech]

I have a few of these running and ALL of them leak really bad where the armature goes into the gearbox and the windings are soaked with gear lube and run extremely hot. Is there a seal I can change? I took a look at one last year and it seemed difficult. Can someone give me a good procedure? I have a few seals, but no part numbers. Do they interchange or should I order some to be sure?

Charley

[Dutch]

Re: GE Backend Motors

I think the seal you need is 716-501-009 but I'm not positive. I can check & get back to you tomorrow.
To change that seal you'll need to completely dismantle the gearbox. It should only take a couple of hours from start to finish & I'd change all seals as long as you have it apart.
We changed every seal in every BE motor this summer. 1st time it has ever been done on these 25-30 yr old machines. Painted & repaired all wiring while we were at it. As projects go... I've done worse.

[Rizash]

Re: GE Backend Motors

heh, since we're on the toppic of gearboxes/back end motors... ours are old too, and never been rebuilt (motors, yes... gearboxes, I wish) Anyone got a good "manual" for various motors? or at least a parts diagram? Saw one on the AMF site, but thought I'd ask here if anyone has better ones [img]/content/btubb/images/%%GRAEMLIN_URL%%/smile.gif[/img] Might be nice to know some of this stuff ahead of time... instead of AFTER we have problems.

[TheGMan143]

Re: GE Backend Motors

After replacing the seals and such, it probably wouldn't be a bad idea to hit the auto parts store for some "electrical parts cleaner/degreaser" too. Wash out all the oil and grease in the windings. That stuff acts like insulation and they'll still run hot.

I've had good luck with Solder Seal/GUNK's "Electric Motor Contact Cleaner", and with CRC's "Lectra-Motive" cleaners.

[felix]

Re: GE Backend Motors

Wash out all the oil and grease in the windings. That stuff acts like insulation and they'll still run hot.

I've had good luck with Solder Seal/GUNK's "Electric Motor Contact Cleaner", and with CRC's "Lectra-Motive" cleaners.[/QB][/QUOTE]
G-Man only uses Kerosene? [img]/content/btubb/images/%%GRAEMLIN_URL%%/laugh.gif[/img] .. G-Must be running inspections Now! :p ..CRC's something or nother is what I Use... [img]/content/btubb/images/%%GRAEMLIN_URL%%/wink.gif[/img] Plus Gas,Kerosene and or Chloronite [img]/content/btubb/images/%%GRAEMLIN_URL%%/eek.gif[/img]

[TheGMan143]

Re: GE Backend Motors

Originally posted by felix:
Wash out all the oil and grease in the windings. That stuff acts like insulation and they'll still run hot.

I've had good luck with Solder Seal/GUNK's "Electric Motor Contact Cleaner", and with CRC's "Lectra-Motive" cleaners.
G-Man only uses Kerosene? [img]/content/btubb/images/%%GRAEMLIN_URL%%/laugh.gif[/img] .. G-Must be running inspections Now! :p ..CRC's something or nother is what I Use... [img]/content/btubb/images/%%GRAEMLIN_URL%%/wink.gif[/img] Plus Gas,Kerosene and or Chloronite [img]/content/btubb/images/%%GRAEMLIN_URL%%/eek.gif[/img]

<font size="2" face="Verdana, Helvetica, sans-serif">Somebody always hasta bust my stones about something... [img]/content/btubb/images/%%GRAEMLIN_URL%%/laugh.gif[/img]

True... we use straight K1 kero to flush out the gearboxes; the problem with kerosene, gas, naptha, chlorinite, etc... for motors is that it could damage or dissolve the laquer insulation on the motor windings and the rubber/plastic jackets of the connecting wires, turning a motor into an expensive doorstop. So far, no problem with SS/Gunk or CRC cleaners.

[BowlEquip]

Re: GE Backend Motors

I know you're all gonna thinks I'm nuts, but this works!!
After scraping the heavy crud off the inside of the stator's shell, and wiping or spraying with the solvent (now using ZEP's Brake Wash), I wash the darned thing in a tub of solution made up of 50% water-based cleaner/degreaser concentrate such as ST-21 or Don's Jet-Solv, and 50% HOT water. Using a good, long-bristled parts cleaning brush, I get in between the windings and the shell. A radiator cleaning brush gets the plates good and clean. If it's really wet-oily, I let it soak about 5 minutes MAX.
Next I do a quick rinse to get all the detergent out, and then I let it soak in clean REALLY HOT water for a minute. Out of the rinse, immediately start blowing it dry with conpressed air. The stator is hot, so I hold it with a rag. Hot water evaporates quickly, and the heat helps it dry thoroughly.
If grease blows out anywhere, I finish up with the spray solvent. Let it stand a few hours.
Great results!

[8270king]

Re: GE Backend Motors

I use my parts cleaning tank.....I use mineral spirits in the tank.

I set the greasy stator in.....use the parts cleaning brush down the middle.....and greasy end.....set it on paper towels........I dont use it for a couple days.

JK

[Dutch]

Re: GE Backend Motors

Sorry, I forgot to look up that P/N last night. I'll try again tonight. Wrote myself a note this time.

[felix]

Re: GE Backend Motors

Charley; Dutch was right. Worm shaft seal #716-501-009. Order a Worm shaft IB bearing #785-501-014 just in case you find too much wobble with the shaft... Offset shaft seal #716-503-023, Dist. shaft seal #716-503-022. [img]/content/btubb/images/%%GRAEMLIN_URL%%/wink.gif[/img]

[Dutch]

Re: GE Backend Motors

Thanks Felix

[LancerLanesMech]

Re: GE Backend Motors

Thanks guys, I would've never thought to soak it. Part numbers are helpful too. I had one that was almost empty when I checked it last week. I have about 14 of them that leak. Some GE, some National, some Westinghouse. The GE's are the ones that get the stator all greasy though, and the heat had me worried. Most of the others leak where the carpet drive and distributor shafts are. I'm getting tired of changing out the napkins in the drip pans, time to yank 'em off go through them. Once again, thanks!

Charley