How do you time the locks? Follow Answer Refer to the instructions on page 3-22 to 3-23 of the 9K service manual. Timing the 9K Applies To 9K Additional Information This only applies to the double keyed function. Related articles Lubricant for key combinator? 30H to 40H Function Conversion Chart 40H FAQ's E Series Mortise and Rim Cylinders Can we do a 2 3/8" backset?