Our replacement board for the mac 104 door operator board is superior to others heres why. I am looking for any adjustment procedures prints or manuals for a mac pmssc sl door operator and any info or prints on the mac p 31471 003 scan guard door is stalling when in the final closing 4quot when the beam is broken but doesnt stall on dob press im leaning toward replac. Looking for mac elevator door operator manual here you can find the latest products in different kinds of mac elevator door operator manual we provide 19 for you about mac elevator door operator manual page 1. The adjusting is the same with the different versions but need to know if you have the 104 board or earlier version i have manuals for both 11911 08 28 14 0240 pm re mac pmssc door operator re boa