Eaton Freedom 2100 Installation And Maintenance Manual

Contents

- Page 21 - I.B. 8926-1DOOR REMOVAL AND INSTALLATIONAll doors on the control center are mounted on pin hingesto facilitate removal for installation and maintenance op-erations. With the operating handle in the OFF position,rotate the quarter-turn latches, open the door, removethe hinge pins as shown in Figure 26, partially close thedoor and lift it from the structure. Reverse this proce-dure for installation.UNIT REMOVAL AND INSTALLATIONAfter opening and/or removing the unit door, the controlunit is exposed. With a screwdriver, push in on the latchat the top center of the unit and rotate 1/4 turncounterclockwise. CAUTION - Units 18" or more highhave a retaining brace at the lower edge of each side ofthe unit frame to add stability in shipping. The shippingbraces may be retained or removed after installation;unscrew prior to unit withdrawal. Pull-apart terminalblocks in the vertical wireway must be disengaged (seeFigure 27 and page 10) and wiring from the unit to otherunits, to master terminal blocks or to load devices mustbe disconnected before the unit is removed. Grasp theunit as shown in Figure 28 and pull it outward. The firstinch of travel pulls the stabs free from the vertical bus,and the grounding clip on the side of the unit frame isalso disengaged.To replace a control unit, position the mounting pointson the unit frame with the mating guide rails. Slide theunit inward until all four mounting points are engaged,then move it inward with a quick push. This movementeasily overcomes the compression of the stabs as theyengage the vertical bus. With the unit in its correct posi-tion, the quarter-turn latch is easily engaged by pushinginward and rotating 1/4 turn clockwise.PART 9UNIT INSTALLATION AND ADJUSTMENTFig. 26 Hinge Pin RemovalFig. 27 Disengaging Pull-Apart Terminal Blocks