Modern Pantograph - Installing; Removing Track Roller on Pantograph

Installing/RemovingTrackRolleron
pantograph
-TakeModernPantographinitsshortenedform
asshownintheadjoiningdiagram.
-Taketrackroller.Thelowerpartoftrackrolleris
calledtrackrollerstud.
-Trackrollerstudcanbeinsertedintheupper
partofthepantographbodycalledtrackroller
socked.
-Asshownhere,openthetrackrollersocketbolt
andinsertthetrackrollerstudintotrackroller
socket.
-Inserttrackrollersocketboltwithitsnutinits
placeandtightenthenutinsuchamannerthat
trackrollercanrotatefreelyin360degreebut
cannotcomeoutoftrackrollersocket.
-Toremovethetrackroller,opentrackroller
socketboltandpulloutthetrackroller.
Mountinglightwirealongtheheightof
pantograph
-Oncetheslidingtrackisproperlyinstalledtake
thetrackwirehooksandslidethemintolower
trackoftheslidingtrackasshownhere.There
hastobeonetrackwirehookper2feetlengthof
slidingtrack.i.e.for8feetslidingtrack3or4track
wirehookscanbeused.
-TakeModernPantographandslideitatother
endoftheslidingtrack.
-Takelightwireandstartinstallingitfromthe
lowerendofthepantographasshownhere.
-Keeponpassingthelightwireonebyonefrom
eachwirehookalongtheheightofpantographin
zigzagpatternsothatwhenthepantographis
elongated,thewireisnotstretched.
-Oncethewirereachedthetopwirehookon
pantograph,stretchthewireandnowpassitone
byonefromeachtrackwirehookonthesliding
trackbymakingaringofabout1feetdiameterso
thatwhenthepantographisslideonthesliding
track,thewireisnotstretched.
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