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  3. EXT 12PC4

Bilco EXT 12PC4 Operating instructions

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1. FirstassemblethesizeCBilcoDoorinaccordancewiththeinstallation
 instructionsintheDoorpackage.
2.Theextensionassemblyconsistsofthreeparts:leftsidepanel,rightsidepanel,
 andcoverpanel.Withthenon-angedportionoftheextensionsidepanelsfacing
 upwardandtheovalholesfacingthebasementdoorasshown,fastenthe
 extensionsidepanelstothebackangleoftheBilcoDoorsidepieceswiththe
 1/4“x1/2”boltsandnutsprovided.
3.Installcoverpanelsoanges overlapthesidepanelsandtheheaderange
 oftheBilcoDoor.Securethiswith1/4“x1/2”bolts,withnutsoninside.
4.FollowBasementDoorinstructionsforinstallationofextensionheaderagainst
 masonrybuildingortotitproperlyundertheshinglesorclapboardsona
 framebuilding.
5. Usingholesprovidedatbottomofeachsidepanel,fastenextensiontoconcrete
 usingtheslottedhex-headscrewsasdescribedinBasementDoorinstructions.
(note: 24” & 30” sides panels have two holes, 12” & 18” side panels have one hole
and 6” side panels have no holes as concrete anchorage is not required).
6. WhencaulkingaroundtheexterioroftheBilcoDoorandextensionbesureto
 caulkwheresidepiecesjoinextension.
7. Important:Extensionpanelsmustbepaintedwithinforty-vedaysofinstallationSeeClassicSeriesbasementdoor
 installationinstructionsforcompletepaintinginstructions.

Installation Instructions
Size C Bilco Basement Door Extensions
(Usedtoincreasethelengthwhenrequiredtotalongerstairwell)
Extension Shipping
Size Weight
6” 26lbs.
12” 41lbs.
18” 58lbs.
24” 73lbs.
30” 91lbs.
HardwareSupplied
withExtension
(13)1/4”x1/2“roundheadbolts
(13)1/4”nuts
(8)#12slottedhexheadscrews
(8)Plasticshields
(4)Springnuts
CoverPanel
LeftSidePanel
Caulkwhereupper
partofsidepiecejoins
extension(bothsides)
RightSidePanel
BasementDoor
HeaderFlange
PrintedinUSA©2010,TheBilcoCompany,NewHaven,CT06505
7/10
MSC38Rev.2
Imagine...
What Bilco can do for your basements
Customer Service
(800)854-9724
E-mail:[email protected]
www.bilco.com
Connectside
panelanges
withovalholesto
basementdoor
Anchor
angeon
bottom
/