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Sessions/Mastercrafters Electric motor replacement?

ChrisBeattie

NAWCC Member
Dec 9, 2004
238
0
16
Canandaigua, NY
Country
Region
Hello all I posted this on the Early Electric Board several days ago and have not gotten a response and only 18 views so I thought I would try it here to see if I can get some help.

Thanks in advance.

I have an electric Sessions/Mastercrafters swinger (Boy & Girl) that I am looking at for a close friend. I normally tell people I dont work on electric clocks but want to try to help my friend.

When the clock is plugged in it does not run, not even a little noise can be heard like others I have run across. Can anyone tell me where to find a replacement motor for this clock? The motor is stamped "# MODEL #11 MASTERCRAFTERS CLOCK Co. CHICAGO US 115v A.C. 2.5W. 60CY". Is there a standard replacement motor that can be obtained at either Timesavers or Merritts?

If there is not a motor that can replace this motor does anyone here repair these clocks/motors?

Any help would be much appreciated.
Chris
 

ChrisBeattie

NAWCC Member
Dec 9, 2004
238
0
16
Canandaigua, NY
Country
Region
Hello all I posted this on the Early Electric Board several days ago and have not gotten a response and only 18 views so I thought I would try it here to see if I can get some help.

Thanks in advance.

I have an electric Sessions/Mastercrafters swinger (Boy & Girl) that I am looking at for a close friend. I normally tell people I dont work on electric clocks but want to try to help my friend.

When the clock is plugged in it does not run, not even a little noise can be heard like others I have run across. Can anyone tell me where to find a replacement motor for this clock? The motor is stamped "# MODEL #11 MASTERCRAFTERS CLOCK Co. CHICAGO US 115v A.C. 2.5W. 60CY". Is there a standard replacement motor that can be obtained at either Timesavers or Merritts?

If there is not a motor that can replace this motor does anyone here repair these clocks/motors?

Any help would be much appreciated.
Chris
 
P

Paul Faf

Chris I guess your not here.

If its the sunbeam wich I think it probably is.

The Achalies heal of these movements is the small red drive pinion above the Ferrite Armature. The substance that Sunbeam used to drive the train can only be compared to Childerns Play Dough. I am not kidding you can crush this pinion between your fingers. I would be willing to bet, when you crack your movement you will find dammage here.

I have had success repairing this type movement by hunting in my junk pile for a replacement brass gear mounted on a pinion of the same diameter and number of leafs. (TiP) Look to small junk German alarm clocks. I drove the alarm clocks pinion out with my staking set and held the tiny pinion just firm enough with pliers protected in a small piece of cardboard to broach the center to match the size of the armature. A small dab of red loctite holds the replacement gear in place.

This is an easy movement to work on. The exact gear/pinion that you need is the challenge.

These movements pop up on ebay but it doesn’t cure the Play Dough drive problem they are not new movements. New Old stock..

I hope this helps.
 

Tom Kloss

NAWCC Member
Donor
Dec 5, 2003
1,882
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38
N.E. Pennsylvania
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Chris

Please post a picyure of the motor. I'm going away for a few days. I'll be back Monday. I may be able to help you

Tom Kloss of Tom's Clocks
 

shutterbug

Moderator
Staff member
NAWCC Member
Oct 19, 2005
49,554
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North Carolina
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The thread is 6 years old, but I still don't know a good cure for these things. I have one here I'd love to fix, so yes, please share :)
 

Movementman

Registered User
Oct 30, 2012
62
0
6
A few months ago, I bought a little Sunbeam mini electric grandfather clock, from 1965. It was very noisy, and did not work right. The little red gear on the magnet, was completely falling apart, and was dried out. I replaced it with another gear from a minute counter from a cassette deck. It has been working fine ever since, and I oiled it, too. It runs quite, and like brand new.
 

doc_fields

Registered User
Sep 29, 2004
1,333
42
48
Greentop, MO
precisionclockandwatch.blogspot.com
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Most worm gears are simply a bolt or screw thread, minus the head and with a hole through the center. I have made several worm gears from common screws, or chased the threads myself on the lathe and drilling the center out. Also, if you have an electric motor that is noisy because of slop on the shaft, I have removed the shaft and rotor, reaming out either end of the sintered bearings in the motor and replacing with a bronze bush. There is a special oil I use for lubricating the inside wick of the motor, it is called either "Turbine Oil" or "Zoom Spout Oiler". The oil is about the color of urine, but it is excellent for removing old oil varnish and withstanding higher than normal temps without varnishing. It is used in the appliance repair industry........................doc
 

Movementman

Registered User
Oct 30, 2012
62
0
6
Most worm gears are simply a bolt or screw thread, minus the head and with a hole through the center. I have made several worm gears from common screws, or chased the threads myself on the lathe and drilling the center out. Also, if you have an electric motor that is noisy because of slop on the shaft, I have removed the shaft and rotor, reaming out either end of the sintered bearings in the motor and replacing with a bronze bush. There is a special oil I use for lubricating the inside wick of the motor, it is called either "Turbine Oil" or "Zoom Spout Oiler". The oil is about the color of urine, but it is excellent for removing old oil varnish and withstanding higher than normal temps without varnishing. It is used in the appliance repair industry........................doc
The Zoom Spout oil works well, but the Sunbeam movements have no oil wick at all, so the oil just kinda drips out after only a few months. My Sunbeam was fixed in November 2012 and was very noisy again in May 2013. The oil does work well in other clocks, though. In Sunbeams you need to used a thin grease or mix the oil in with grease to make it thinner.
 

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