Modern Pantograph User manual

ModernPantograph
OperationandMaintenanceManual
Adjoiningdiagramshows
abriefsketchofallthe
componentsofModern
Pantograph
1.Track
2.Trackroller
3.Trackrollersocket
4.Trackrollersocketbolt
5.Tensionwire
6.Tensionwire
7.Tensionwire
12.Springcase
13.Lockinggear
14.Lockinglever
15.Lightstud
lock
stud
8.Bodycage
9.Bodystud
10.Bodyspacer
11.Lightwirehook
1

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.
2

ProperOrientation ImproperOrientation
Mounting/unmountingstudiolighton
pantograph
-Standardstudiolightmanufacturerprovidesa
socket(calledlightmountingsocket)attachedto
thebodyoflightwhichhelpstoattachthelight
withstands,pantographs,clampsandother
studio/outdooraccessories.
-Thissockethasastandardsizehole(5/8inches
or19mm)
-Modernpantographisprovidedwiththis(i.e.5/8
inchesor19mm)standardsizelightstudatits
lowermostendtohelpmountthestudiolightsonit
asshownintheadjoiningdiagram.
-Asshownhere,oncethepantographismounted
ontheslidingtrack,takethestudiolightaninsert
thelightstudonpantographintosocketonstudio
light.
-Fastentheboltgivenonthelightsocketaround
thelightstudsothatwhenthepantographis
operated,thelightdosenotgetdetachedfrom
pantographandfallontheground.
-Tounmountthelight,loosetheboldonthelight
socketandpulldownthelight.Thelightwillbe
free.
Lightorientationonpantograph
-Oncethelightismountedonthepantograph,theorientationoflightwithrespecttopantographbody
cageisveryimportantforsmoothfunctioningofthepantograph.
-Asshownintheabovediagram,rotatethelightalongthelightstudonpantographtohavethedesired
orientation.
3

Increasing/decreasingpantographspring
tension
Step1:Openingtensionwirelock
NOTE:
-Unmountthestudiolightattachedtolightstudof
pantographforsafety.
-Openthelowertrackendstopoftheslidingtrack
andunmountthepantographinshortenedform
asshownintheadjoiningdiagram
-Placethepantographfirmlyongroundinaway
thatthelightstudtouchedthegroundand
pantographstaysinuprightpositionasshown
here.
-Holdthespringcasefirmlysothatwhenthe
tensionwireisloosenthealreadyappliedtension
doesnotgetremoved.
-Oncethespringcaseisfirmlyheld,openthe
tensionwirestopwhichisattachedtoitsupper
endneartensionwirestudasshowninadjoining
diagram.
Keepthetensionwirefirmlystretched
aroundthespringcaseintheentireprocess.Ifthe
tensionwireisleftloose,itmightgetcoiled.Inthat
case,entiretensionwirewouldhavetobe
openedandrewoundaroundthespringcase.
Step2:Increasing/Decreasingtensionin
tensionwire
-Oncethetensionwirelockisremoved,loosen
thespringcaselightly(butstillkeeponholdingit)
andpulloutapproximately1feetoftensionwire.
-Thisstepwillstretchthespringinthespring
caseandasaresultextratensionwillbeaddedto
thetensionwireoutside.
-Fordecreasingthetension,oncethetension
wirelockisremoved,unwind1turnofthetension
wirefromaroundspringcasewhileholdingspring
casefirmly.
-Nowwhilethetensionwireisfirmlyheld,loosen
thespringcaselightly(butstillkeeponholdingit).
Asaresultthespringcasewillwinditself
(becauseofthetensioninitsspring)withthe
extralengthoftensionwirethatisjustunwound.
-Thisstepwilldecreasethetensioninspring
insidethespringcaseandconsecutivelyinthe
tensionwireoutside.
4

Step3:Windingextraroundoftensionwire
-Onceagainholdthespringcasefirmlysothatit
cannotremovethealreadyappliedtension.
-Now,whilespringcaseisfirmlyheld,takethe
extralengthoftensionwirethatisjuststretched,
andwindanextraroundaroundthespringcase.
-Makesurethatthetensionwireisfirmly
stretchedaroundthespringcaseasmentioned
earlier.
Step4:Restoringtensionwireanditslock
-Oncethetensioninthetensionwireisset,take
theendofthewireandpassitthoroughthe
tensionwirestudatupperpartofpantographas
shownintheadjoiningdiagram.
-Makesurethatthespringcaseisheldfirmly
whiledoingthisotherwiseitwillunwind(because
ofthetensioninitsspring)andthealready
appliedtensionwillberemoved.
-Afterpassingthetensionwirethroughthe
tensionwirestudandrestorethetensionwire
lockatitsend.
-Nowloosenthespringcaselightly(butstillkeep
onholdingit).Asaresultthespringcasewillwind
itself(becauseofthetensioninitsspring)withthe
extralengthoftensionwirethatisleft.
-Mountthepantographontheslidingtrackand
restorethelightonthepantograph.Pressthe
lockingleverandmovepantographup-down3-4
timestocheckthetension.
5

Handlingpantographtensionwirebreakage/
displacement
Step1:Openingtensionwirelock
-Unmountthestudiolightattachedtolightstudof
pantographforsafety.
-Openthelowertrackendstopoftheslidingtrack
andunmountthepantograph.
-Placethepantographfirmlyongroundinaway
thatthelightstudtouchedthegroundand
pantographstaysinuprightpositionasshownin
theadjoiningdiagram.
-Openthetensionwirestopwhichisattachedto
itsupperendneartensionwirestudasshownin
adjoiningdiagram.
Step2:Unwinding/replacingthetensionwire
NOTE:
-Oncethetensionwirelockisremoved,unwindit
fromaroundthespringcaseturnbyturn,untilthe
entiretensionwireisunwoundandonlyitsendis
attachedwiththespringcaseasshownhere.
-Incasethetensionwireisbrokenitwillhaveto
bereplacedwithanewwire.Sohereremovethe
wirecompletelyfromthespringcasebypassing
theentirewirethroughthesmallholeontheside
ofspringcase.
-Thiswire,called'Rearenginegearinner',is
easilyavailableatanylocalautomobileshop.
-Asshownheretakethenewwireandpassit
throughthesmallholeonthesideofspringcase
fromwheretheearlierwirewastakenout.
Careshouldbetakentomakesurethat
duringthisentireprocessthespringcaseshould
notbeturnedintoclockwisedirectionwhenthe
caseisbeingseenfromthesideofpantographas
shownintheadjoiningdiagram.
Unwindentirewireturnbyturnand
removeitbypassingthroughspringcasehole
Donotturnspringcaseinclockwisedirection
whenseenfromthisangle
Springcasehole
6

Step3:Rewindingentiretensionwirearound
springcase
NOTE:
-Nowthattheoldtensionwireisunwoundand
newtensionwireisattachedwiththespringcase
onlyatitsend,startwindingitaroundthespring
caseturnbyturnintheanti-clockwisedirection
whenthespringcaseisseenfromthesideof
pantographasshownintheadjoiningdiagram.
Keepthetensionwirefirmlystretched
aroundthespringcaseinthisprocess.Ifthe
tensionwireisleftloose,itmightgetcoiled.Inthat
case,entiretensionwirewouldhavetobe
openedandrewoundaroundthespringcase
again..
Step4:Restoringtensionwireanditslock
-Oncethetensionwireiscompletelywound
aroundthespringcaseadjustthetensionintothe
tensionwireasexplainedinthepreviouspages.
-Afterthetensioninthetensionwireisset,take
theendofthewireandpassitthoroughthe
tensionwirestudatupperpartofpantographas
shownintheadjoiningdiagram.
-Makesurethatthespringcaseisheldfirmly
whiledoingthisotherwiseitwillunwind(because
ofthetensioninitsspring)andthealready
appliedtensionwillberemoved.
-Afterpassingthetensionwirethroughthe
tensionwirestudandfastenthetensionwirelock
atitsend.
-Nowloosenthespringcaselightly(butstillkeep
onholdingit).Asaresultthespringcasewillwind
itself(becauseofthetensioninitsspring)withthe
extralengthoftensionwirethatisleft.
-Mountthepantographontheslidingtrackand
restorethelightonthepantograph.Pressthe
lockingleverandmovepantographup-down3-4
timestocheckthetension.
7

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Tel.[phone]
ManufacturedBy:
Pantographusageandhandlinggood
practices
Itisfoundthatfollowinggoodpractices,if
adapted,makesconsiderableeffecton
functioninganddurabilityofpantograph
-Followproperlightorientationwhilemounting
lightsonpantograph(asexplainedearlier)
-Keeppantographinshortenedformwhenlights
arenotinuse.
-Uselockingleverforshorteningthepantograph.
Ifthepantographisoftenshortenedwithoutlifting
thelockinglever,thelevermaygetdamagedover
longerperiodoftime.
-Neverpulldownpantographwithoutpressing
thelockinglever.Ifmoreloadisappliedwithout
pressinglockinglever,itmaydeform pantograph
structureandhamperitsfunctionality.
-Seethatwhileslidingthepantographitsbody
cageshouldnotbendonside-ways.Thisagain
mightdeformthepantographstructureand
hamperitsfunctionality.
-Whileslidingpantographontheslidingtrack,
push/pullitfrombottomandcenterpositionas
showninadjoiningdiagram.
-Cleanthepantographatleast2-3timesaweek.
8