Eaton Freedom 2100 Installation And Maintenance Manual

Contents

- Page 22 -I.B. 8926-1DETENT POSITIONFor maintenance and test purposes, the unit can be par-tially withdrawn (approximately 1 inches) until the stabsare free of the bus. In this position, the quarter-turn latchcan be rotated clockwise to engage the detent positionslot; this will secure the unit to ensure the stabs remaindisengaged during maintenance. See Figure 29. Thelatch can be padlocked in this position.OPERATING HANDLE LINKAGE ADJUSTMENTMovement of the operating handle in the vertical planeshould not be restricted by the handle cavity at eitherthe top or bottom to its travel. Should restriction occur,eliminate it adjusting the length of the operating linkageas shown in Figure 30. Depending on the type of pri-mary disconnect device contained in the control unit, itmay be necessary to lengthen or shorten the linkage.AUTOMATIC SHUTTER TRAVEL ADJUSTMENTWhen the optional labyrinth vertical bus barrier is installedin the control center, a shutter is provided to automati-cally cover the stab openings when a control unit is with-drawn. The shutter is opened by engagement of theleft-hand side of the control unit with the shutter arm link-age attached to the left-hand vertical structural mem-bers. When the unit is withdrawn free of the linkage, aspring automatically moves the shutter to its closed po-sition. See Figure 31 and Figure 4.With the control unit removed, the shutter should com-pletely cover the stab openings. If it does not cover theopenings, use an adjustable wrench to bend the link armto the right until the shutter covers the stab openings.If, on re-insertion of the control unit, interference is feltbetween the stab assembly at the rear of the unit andthe shutter, the engagement of the control unit with theshutter arm linkage is insufficient to fully open the shut-ter. Use an adjustable wrench to bend the linkage arminward toward the unit to increase its engagement withthe unit. An inward bend of approximately 1/4 inch willprovide sufficient additional shutter travel.INSTALLING PILOT DEVICESThe device panel can accommodate up to six pilot de-vices such as oil-tight pushbuttons, indicating lights, se-lector switches and miniature meters. If unused spaceis available and the addition of other devices is desired,observe the following procedure.After opening the unit door, loosen the two screws at thetop of the device panel. Slide the panel 1/2inch left topermit it to swing down for access. See Figure 32. Withthe peen end of a ball-peen hammer or with a drift orchisel, remove the desired knockout.Fig. 29 Unit Locked in Detent PositionFig. 30 Operating Handle Linkage Adjustment