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Post by teegee777 on Jul 7, 2022 22:17:27 GMT
Hi, Is there anything special about the MO relay in a 106 580 Centrale for a NSM ES 160? I've never seen a relay like it (or it's broken/welded)
The carriage motors don't reverse when they reach the right hand end (or reverse after selection) The MO relay looks like it's permanently down or does it work back end?
Unfortunately the Forum won't let me upload a photo of it, the armature appears to be in the operated position all the time.
In the meantime I'll check the micro switches.
Cheers Tony
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Post by Ron Rich on Jul 8, 2022 16:02:14 GMT
Hi Tony,
The photo can be posted--read our FAQ's post, on how to do it.
Ron Rich
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Post by Hildegard on Jul 8, 2022 21:10:45 GMT
After a selection has been made the scan relay FA is energized and contact fa closes the circuit for the play motor (SMP) and - as the motor realy (MO) is energized too - the drive motor (ANM).
The carriage motors then moves from its rest postion (r.h.) and opens the end switches.
(Source: Service manual ES120/160)
When I uderstood your introduction well the Consul Classic ES160 might have sit for quite some time. In this case the carriage base could be sticky and hence both the end switch and the the reversing switches on both ends of the gear rack might not be able to move free. This grafic is from later ES II manual but it looks the same in ES.
Besides this I guess it is possible to test the relay if its opens/closes in general.
Sometimes they are sticky too.
Hildegard
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Post by teegee777 on Jul 9, 2022 8:39:39 GMT
 postimg.cc/4ngHdxrGThanks for the information on posting images, hopefully there will be a thumbnail and a link to the photo in this message. The MO relay appears to be a non conventional relay (or one I wasn't expecting ...perhaps a solenoid and pin?) There doesn't appear to be an armature/yoke arrangement visible. Thanks to Hildegard as well for the information. I have now discovered the problem to be the changeover switch (marked 3 in fig 10 from Hildegard). It was working intermittently whilst using a multi meter. Whilst waiting for the new one to arrive, I managed to take it apart, clean the contacts and got it working again. The symptoms was that the carriage would drive to the right, stop at the end but then continue to shake and the clutch would slip. The motors only turned in one direction. I'm now wondering whether that also affected an intermittent speed/non turning of the play (SPM) motor? |
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Post by jukenorman on Jul 9, 2022 14:42:41 GMT
Hi Tony,
It looks like the armature/yoke you're looking for is at the bottom of the coil. As Hildegard has pointed out, if your mechanism has been unused for some time, then things usually get gummy. It will be the same with the SPM motor - classic NSM problem, the pivot is probably sticky and maybe the turntable also? Checking switches for continuity with a (digital) multimeter is fraught with problems; that has been stated many times on this forum!
Norman.
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Post by Ron Rich on Jul 9, 2022 16:47:39 GMT
Hi Teegee,
That relay has a "pole piece", and an "armature" ! Relays do not get "sticky", unless someone puts something on the pole piece to "stick it" to the armature. What does happen is the armature becomes magnetized. My "solution" for this is to use a piece of "bird replant' Mylar tape-- glue it to the pole piece. As for "testing contacts" with a digital, meter --READ the FAQ's post on contacts, and over-center switches ! Ron Rich"
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