The   MCI   JH 16 Sync Relay....

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    Note: the original PB relay   R10D-E1-L4-V700   is NO LONGER MANUFACTURED
This was used ONLY in the MCI JH16 Mid and Later version machines.
There is NO DIRECT REPLACEMENT made today

This was a FORM "D" relay... a 'Make-Before-Break' relay... that in itself isn't the problem....
for some reason the POLES of the relay are not the standard R10 Poles...
thus a standard R10 relay will NOT work as a replacement....


as of November 2015
There may be BRAND NEW OLD STOCK   R10D relays   available from :

http://www.onlinecomponents.com/te-connectivity-p-b-brand-r10de1y4v700.html?p=12112368


These are slightly different from the original relay but should work fine...
if they are actually real R10D pin out relays !!

But be aware there have been reports some few R10D relays are really R10 pinout relays...
meaning they will be worthless as a direct replacement....
so you need to check that these are real R10D relays.

I have NOT checked that these relays are actual R10D pin outs.

Also Note that all   R10   4 pole relays LOOK THE SAME   !!!

Here are pictures of the shell of a R10D and a R10 relay... indicating the poles and contacts


   
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