Re: Carriage mount elevation screw.
Hand wheel rotates , but cannot elevate.
Threaded shaft has ball on end to engage the gun mount housing.
Just under ball are two flats on the threaded shaft that prevent the shaft from rotating. These flats fit into a slot of the previously mentioned gun mount housing.
Net result is as hand wheel rotates, threaded shaft elevates but cannot rotate.
The tripod mount is different.
Hand wheel and shaft are fixed together, Threaded shaft goes onto a lower fixed nut. ( still has ball on the end). As hand wheel ( and threaded shaft ) is rotated , both it and threaded shaft elevate. No need for the flats on threaded shaft.
Hope this helps.
« Back to index