Pump Alignment/Install

You may or may not need shims between bed plate and motor mounts, you want to lay a straight edge across couplers on top bottom and both sidesmake sure it don't rock. You also want the gap between couples to b no less than I think 2mm
 
Thanks those helped! Well, my lock washers don't look anything like his, and are a bit smaller, but I presume they do a similar task?
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