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\ The Wet Chemieal Syste � �jE G�� <br />C-5 <br />Mechanical Control Box <br />Meehanical Control Box <br />The mechanical contrai box is used to directty discharge a <br />single Range Guard cylinder regardless of cylinder size. It <br />consists of the i;ems shown below. The tension created bythe <br />40 Ib. spring is reduced to 20 Ibs. by the load reducing lever. <br />The mechanieal control box discharges the cylindar when <br />(1) a fusible link operates, (?) the pull pin is removed from the <br />control box or (3) the pull pin is removed trom the remotc <br />manualrelease. <br />The mechanical contral hox can oF�: rate a mechanical gas <br />valve and al�o is designed to accommodate single and double <br />switches (f,PDT or DPDT). <br />The res>t tool is designedto set the control head leverto fts <br />proper oositica with a minimum ot eBort. The keeper pin is 6" <br />long and is inserted in the control head so that the cabletension <br />can be applied to the detection line while the control head lever <br />is locked in place. The keeper pin will not allow the door on the <br />mechanical control boz to close while it is in position. IT HAS <br />BEEN DESIGNED IN THIS MANNERTO INSURETHATYOU <br />WONT LEAVE THE JOB SITE WI7H THE KEEPEA PIN <br />INSTALLED IN THE CO�;TROL HEAD. THE SYSTEM IS <br />INOPERATIVE WITH THE KEEPER PIN INSTALLED IN <br />THE MECHANICAL CONTROL HEAD. <br />U.L EX 2458 <br />r��.n =-^:r�,^ <br />eo�r <br />Assembly of Mechanieal Control Box <br />Assembly of the Mechanicai Control Eox is simple <br />and easy. Reter to page M-10 & M-11 for a detailed <br />iliustration of the control box and its' components. Assem- <br />bly instructions are provided with each Mechanical Cantrol <br />Box. The tollowing is a general outline af assembly <br />requirements: <br />1. Begin by insuring that ail necessary compo- <br />nents are enciosed with your control box unit. <br />2. Affuc the Knob wRh screw supplied to the frant <br />cover af the control box. Apply the supplied Iabeis to the <br />outside and inside of the controi box enclosure as in�cated. <br />3. Remove the flat washer and lock nut'.rom the <br />control head assembly hody. Insert the ihreaded portion of <br />the control head body through the 1.33 Dia. hole in the <br />enclosure. Insure that the control head is oriented as <br />shown in the illustretion. Fastened in piace with the flat <br />washer and lock nut. NOTE: insure that the washer is on <br />the outside of the enclasure. <br />4. Instzll actuating spring as shown on M-10. <br />5. Install p�vot bolt so that it passes through the <br />load reducing lever, then the spacer and then threads into <br />the stud provided in the bottom of the box. See M-10. <br />NOTE: Care is to be taken to insure that the bolt is not <br />cross threaded. <br />6. This completes the assembly of the Meclianical <br />Control Box, See I-5 for Setting Procedure. <br />RlDOI MI IIdOYED'/ �� 10-t� IQ]! NIIT fRlLI <br />tweuont ewr <br />++o-:� �us rur tuu <br />— . �o-xs rreewen <br />E}lIOLT ILJI] <br />� <br />j2-1M-uME7� <br />� <br />NOLC TME �[uT ' <br />lEVl111N T11! <br />MONT Nu1D ArN10L <br />/1.f f1101MN <br />MECHANICAL CONTAOL BOX ASSEMBLY 99470 <br />FlGURE 6e <br />r-wwo� <br />01988.1990 Figgie Intenational. Ine., All rights �esarvad. (11/94) <br />