Big Jimmy wrote: asking about adjustments on the coach side latch not the door side.
For future reference, there is no such thing as coach side and door side. There is ROADSIDE and CURBSIDE. OR Drivers side and Passenger side. What are you trying to do? Adjust the tightness of the door when closed? Or trying to adjust the doors up or down to clear a Slide room or make them appear even from front to rear? Be advised that Tiffin door latches have a primary and a secondary latch like a Car door. A common problem is the door engages the primary but not the secondary and then appears(it is) loose and will move in and out slightly. If this is the case, you adjust the L bolt out slightly to allow the secondary latch to engage and hold the door tight. Doug