The older model 4600 operators (product shipped prior to March 19 2019) had spacers that had to go behind the cylinder to bring the closer body out to properly align with the coupler on the motor/clutch. These spacers were 1-5/8 long x ½ inch wide and ¼” thick. We no longer have these spacers so they will need to find shims or washers that are ¼” thick to bring out the closer body so it aligns with the motor/clutch. The new 4600 units have these spacers built into the mounting plate
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