The LCN 4041/4040XP and the Glynn Johnson 90 series can be mounted in conjunction with each other without a special template. The 4040 door closer is on the pull side of the door and the GJ 90 is on the push side of the door.
A conflict may occur between the Glynn Johnson 90 thru bolts and the door closer cylinder. If this occurs, the 4040-18 drop plate would be used and the plate drilled out to provide clearance for the thru bolt heads.
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