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#1
10-20-2009, 01:02 PM
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300SDL: Window Motor Disassembly?
OK, I got my 86' 300SDL's driver side window motor out and drilled out the rivets holding the motor's cover on but for the life of me I cannot figure how to get the worm gear out.
 I'm hoping the brushes are the culprit. I tried carefully (if that can actually be done  ) prying up the metal plate that's atop that black plastic/rubber piece that sits in/on the big pink gear but that's not working. I tried prying the small gear outside the motor housing but she aint' budging. I looked for set screws but don't see any. Can anyone tell me how to get this puppy apart? Thank you, thank you, and thanks again.
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Tony (Actually, a member since 2000) Last edited by TonySz; 10-20-2009 at 02:34 PM. 
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#2
10-20-2009, 03:00 PM
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Motor armature and shaft should just pull out....
Its prolly the internal heat-fuse thats O/C.... Brushes last a long time.... The fuse is in that small black square thing between one end of the supression coil and either a brush-lead or one of the power leads. I used a piece of 15A domestic fuse-wire to fix mine.... 
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http://i190.photobucket.com/albums/z...0TDnoplate.jpg Alastair AKA H.C.II South Wales, U.K. based member W123, 1985 300TD Wagon, 256K, -Most recent M.B. purchase, Cost-a-plenty, Gulps BioDiesel extravagantly, and I love it like an old dog. W114, 1975 280E Custard Yellow, -Great above decks needs chassis welding--Really will do it this year....
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#3
10-21-2009, 12:26 PM
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Thanks Alastair. I'll check into that. I'm good with soldering.... hopefully I can desolder, remove, and reinstall a fuse wire with my big ham hands.
 
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Tony (Actually, a member since 2000) Last edited by TonySz; 10-22-2009 at 06:27 AM.
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#4
10-22-2009, 06:26 AM
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The fuse has continuity so I don't believe that's my problem. I replaced both brushes last night. Just waiting for the glue to dry because I busted the "arms" of the little square caps that hold the brushes in the housing. If that doesn't work then I'll go for the fuse. After that I don't know what else it could be.
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Tony (Actually, a member since 2000)
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#5
10-22-2009, 11:59 AM
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You may know this already but the Electrical connections are only through the 2 Wires coming off of the Motor. The Motor Body does not act as a ground.
You can test the motor while it is out on your Battery.
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84 300D, 82 Volvo 244Gl Diesel
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#6
10-22-2009, 03:02 PM
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I have tried that already and it feels like she wants to go... I can feel a slight kick when I apply voltage to the leads. Still investigating.....guess it's gotta be the fuse, but methinks I wouldn't even feel the slight kick if it wasn't getting juice past the fuse. Or, I messed something up and something's getting grounded.
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Tony (Actually, a member since 2000)
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#7
10-24-2009, 11:27 AM
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After much putzing around I bought a used motor from a friend yesterday. What a major mofo PITA getting the whole regulator back in and installed properly. At least I can go to my favorite drive-in diner now.
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Tony (Actually, a member since 2000)
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