changing the print ring bearing the various type characters to that end the dovetail arrangement shown at 58 permits the disconnection of the printing assembly 10 from the lead screw follower 50 the manner in which the type rings of the printwheel assembly are disassembled is the subject of my co pending application ser no 407 841 filed aug 13 1982 in order to slide the rotary printing assembly 10 off the driven shaft 28 it is necessary to free one end of the shaft 28 the present invention teaches a pull down assembly shown generally at 70 in fig1 and 3 that permits the end of the shaft 28 to become free the movable pull down assembly 70 includes a vertically arranged plate member 72 that is pivotally mounted at its base by tabs 74 76 to the main frame of the assembly tabs 74 76 have holes formed therein through which pins formed on plate 72 protrude one of which is seen at 78 and thus provide the appropriate bearing surfaces the plate 72 has a bushing 80 arranged therein that provides a suitable bearing surface for the end of shaft 28 note that shaft 28 rotates at a relatively high speed as driven by the servo motor 30 in order to provide some damping to cut down excessive vibrations of the shaft 28 and to prevent any high frequency noise or squeal.