Wiper motor identification

[rock60joe]

Originally Posted by Bob C

Found this on Ebay http://www.ebay.com/itm/Ford-1949-63...p2047675.l2557

Trico Vacuum Wiper Motor
Ford
Parcel Delivery, 8J-85, 1949, 1950, HJ-104 1951, H2J-122 1953, P350-104", 122", P400-137", 122", P-500-130", 122", 1957, 1958, 1959, 1960, 1961
NOS New OEM Left Side Trico Vacuum Wiper Motor, CSM-110-1. This is a new Trico vacuum motor that has been on the shelf for a long time and should be taken apart and greased to make sure it runs great for a long time. We have a large selection of Trico motors and parts see our Ebay Store for other listings. Bid now on this original Trico Vacuum Motor.

I have a 1950 ford, F1....I hooked up the vacuum line and it turns the driver side.
I have no idea how to hook up the rider side as the bar has slots and fall off as it turns.
How the heck do I secure this bar to work??? do you have any sketch I can use...Then I can test it and see if I need a new motor?
Also...the motor has 2 vacuum fittings....I used one, the other???