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Mike Murray
Hammond Synchronous Clock Motor (Rotor) for the Postal Telegraph Wall Clock Repair and Motor Repair Spin Start.

Copyright © 1995-2023 Michael P. Murray & Mike’s Clock Clinic Mike Murray Memberships: NAWCC P. O. Box 562 1151 D Street Fossil, OR 97830-0562 The P.O. Box is for the USPS only and should be removed for all other carriers.

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Hammond Clock Movement for the Postal Telegraph Wall clock

My business is rebuilding your original movement. Most, if not all, Postal Telegraph’s were made without a motor and the first section deals with those situations. The second section deals with customers sending in the Hammond motor or the clock movement with motor or the entire clock with a Hammond motor.

Postal Telegraph’s were mostly made with a movement that did not have a motor (as pictured directly above) and used a coil to generate an eletro-magnetic field that would drive an internal disk. This is considered a (Time Only) movement and an overhaul on a time only electric is $400.00 plus $30.00 shipping, assuming you only send in the movement. The movement overhaul does NOT include the coil ($150.00), so that would be added to the cost of the overhaul, if needed. Coils are not sold separately. If this is what you have and you send it in with the entire clock then it’s the same as above with shipping increasing to $175.00 in order to cover the additional labor and shipping costs ($575.00). Complete movement overhauls or if you send the entire clock takes 6 to 8 months. The confusion is that the picture above is the back of the clock and Postal Telegraph’s with the Hammond motor look identical. It is not until the backing is removed and any movement outer covering removed until we know if it has a motor or not. I can and do service both and if you’re sending the entire clock, then it’s my problem and not yours. You can send a picture of the back and sometimes I can tell if it has a motor or not to
UPS sells boxes but you can Google to find someplace to buy boxes. In my opinion there is no best when it comes to a carrier. I use UPS for convince not because I believe they are the best. The best insurance is to double box and pack each box well, even if it means an oversize final box causing an increase in shipping price. If you're a busy type, then you can use a UPS store to ship it and have them pack it but I have seen them do lousy packing as well. The goal is to have nothing negative happen shipping both to me and back to you and why I do my own packing and always double box and always have some packing material surrounding the clock and surrounding the 1st box. A little more time and a little more expense will save the large headache of trying to find someone who will work on the clock and have someone remove the movement, bezel, face and chime block before the case is worked on. This will fall on you because the carrier will have me return it to them and then they inspect it before they ship it back to you.

I'm not positive but I can't recall a Postal Telegraph having the above movement but I'd rather address it now, just in case. The picture above is the back of perhaps the first movement used in the Postal Telegraph and I DO NOT work on these but do work on all that were made after that because they contain either a clock motor or a magnetically driven disk. The above was only used in the first production in the late 1920’s and all others have a motor or disk and were make in the 1930’s. Hammond produced clocks from 1928 to 1941. Also this clock will say bichronous, which means that it has an auxiliary system with a mainspring that is suppose to "take over" once the power is off. Some of these have the type of mechanism that has leaf spring limiters to regular the time when the current is on and I do not work on these. If you or a local clock shop can take the back cover off and send a picture of what's underneath, then I can tell you if I work on it or not. The word bichronous can be on the front or back or both. Even with that word, I may still be able to work on it but need that picture to be sure.
Postal Telegraph's with a Hammond clock motor

The rest of this Web page concerns itself with other clocks that the Hammond motor is installed in or just the motor itself. Here the clock and/or back will state synchronous, which means that it runs on electricity and has no back up for a power failure. Rebuilding these motors cost $250.00 plus $20.00 priority mail (Canada is $45.00) and has a 2-year warranty, which brings your total cost to $270.00. I must have the old motor. If you don't have the motor then I must use one from inventory and that adds $100.00 to the total and it too would have to be rebuild, so the time frames would still be the same. For a total of $370.00 if I use and rebuild one from my inventory and that includes the $20.00 shipping and handling. In addition to the picture above, these motors are identified by their 15 tooth brass pinion (gear). I do not know of any substitute. My turnaround is 4 to 6 weeks for motor service, 6 to 8 months if the clock is sent with the motor, or if the movement is overhauled. I no longer offer expedited service. If you want to send in the clock for motor or rotor replacement, please be advised that your costs will increase by $140.00 with everything else staying the same. The increase covers the increase in return shipping and insurance and includes my labor charge of $100.00 for the replacement service. I can ship at that price for clocks up to 22" in diameter ($390.00). Overhaul Hammond clock motor $250.00 (A 2-year warranty) Labor and cleaning of movement $100.00 (No warranty because this is not an overhaul) Return shipping and handling $60.00 to $100.00 Total $410.00 to $450.00 The above assumes you ship the entire clock and does not include a warranty on the movement (mechanism) because that may need to be overhauled as well.  Most times the movement does not need to be overhauled but if it did then you're looking at an additional $400.00 for a possible total of $710.00, then the movement would have the same 2-year warranty as the motor. I’ll not ship until I received payment.  I ONLY accept money orders, certified checks, or company checks for payment but repeat customers may use personal checks. Normally shipping takes place one week or so after I receive payment and thanks ! All checks must be made out to Mike Murray because I gave up my business checking.
One thing you can do before you send in the motor is to take a Multimeter or Volt/Ohm meter, these are less than $20.00 at any hardware store, and with no current on the motor, set the meter to Ohms and touch the two leads to the end of the wires and see if you get a reading. Just about any reading is a good one and the lower the better. But if you get no reading what-so-ever then the motor’s coil is dead and you will need a coil as well. I do NOT sell these coils separately but do as part of a motor overhaul they are $150.00 each but do sell # 60 or # 14 Telechron coil for the same $150.00 plus shipping.
For return shipping I use USPS for all motor shipping and UPS for complete clock shipping. If you want to use another carrier then you will have to arrange everything for shipping, meaning I hand the box to the driver, get a receipt and nothing else. If, for any reason, I cannot rebuild your motor or I cannot salvage an exact substitute, then I’ll return your motor at no charge what-so-ever, unless you send the entire clock, then I charge for return shipping, which is usually $50.00 to $75.00.
All checks must be made out to Mike Murray because I gave up my business checking. Please do not send any money or check with the clock. However, if you are sending a Hammond motor only, prepayment is always welcomed because of the relatively short turn around time. I would like payment by, certified check, personal check, business check, or through Pay Pal or Square, which is the only way I take credit cards. I do prefer a check over Pay Pal or Square because Pay Pal and Square take 3%. The 3% is added to the total bill if you use a credit card. With either Pay Pal or Square, I will send an invoice to your E-mail address. Here you are dealing directly with either service and not me. You do not have to be a member of Pay Pal or Square in order to issue a payment but the 3% will be added to your total bill. All of the added fees are exactly what either service charges me for taking your credit card.

You should realize that a Telechron coil will effectively replace the Hammond coil, if the need should arise, with the same wattage considerations. A # 60 or # 14 Telechron coil work well and I do sell those for $150.00 plus shipping.
Respectfully, Michael P. Murray Memberships Include: National Association of Watch & Clock Collectors An Internet private E-mailing list called Clocksmiths N.A.W.C.C. National 400-day Clock Chapter # 168 A service from, E-mail address: Mike Murray Founder of Clocksmiths A specialist in Atmos and 400-day clock repair. Also, I overhaul most plug in electric clocks. In continuous service since 04/01/1982. Mike’s Clock Clinic Memberships: Clocksmiths & NAWCC P. O. Box 562 1151 D Street Fossil, OR 97830-0562 Phone: 541-370-2440 My main Web site is located at Main FTP site is located at Memberships: Clocksmiths & NAWCC N.A.W.C.C. International 400-day Clock Chapter # 168 Published in Chapter 168’s "Torsion Times" Published in AWCI’s "Horological Times" Formally AWCI’s 400-day (Anniversary) clock Bench Course Instructor!

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Copyright © 1995-2023 Michael P. Murray & Mike’s Clock Clinic

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Created in December of 1995 and last updated January 01, 2023.