3M Fiber Optic Splice Closure 2178-LS Series with Gasket · 3M™ Fiber Optic Splice Closure...

April 201478-8130-1910-2-J

3M™ Fiber Optic Splice Closure 2178-LS Series with Gasket

Instructions for: 3M™ Fiber Optic Splice Closures 2178-LS Series 3M™ Flame Retardant Fiber Optic Splice Closures 2178-LS/FR 3M™ Cable Addition Kit 2181-LS 3M™ Flame Retardant Cable Addition Kit 2181-LS/FR

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Contents1.0 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.0 Specifications3M™FiberOpticSpliceClosurefor2178-LSSeries . . . . . . . . . . . . . . . . . . . . . . . 3

3.0 3M™FiberOpticSpliceClosureConfigurationsandCapacityfor2178-LSSeries . . . . . . . . . . . . 5

4.0 KitContents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

5.0 CablePreparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

6.0 RemovetheTraySupport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

7.0 CableInstallation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

8.0 Cable/PortSealAssembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

9.0 BufferTube/FiberManagement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

10.0 SpliceClosureAssembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

11.0 SpliceClosureReentry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

12.0 3M™CableAdditionKit2181-LSand2181-LS/FRInstallation . . . . . . . . . . . . . . . . . . . . . . . . . 19

14.0 ClosureAccessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

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1.0 General1.1 Thisinstructionbulletindetailstheinstallationofthe3M™FiberOpticSpliceClosures2178-LSSeries.

1.2 TheLclosuresconsistoftwoseries:the2178-LSSeriesclosureforoutsideplantapplicationsandthe2178-LS/FRSeriesclosureforinsidebuildingapplications(Seebelowforapplicationdetails).Theproductcanbeusedforbutt,inlineorbranchsplicingconfigurations.

2178-LS Series Closure Locations2178-S Smallfiberopticspliceclosure Black closures for outdoor

applications: underground (manhole, handhole), buried (pedestal), direct buried and aerial.

2178-LS Largefiberopticspliceclosure2178-LL Extralargefiberopticspliceclosure2178-SL Smallfiberopticclosurewithextrastoragearea2181-LS Cableadditionkit2178-LS/FR Series2178-S/FR Smallflame-retardantfiberopticspliceclosure Gray closures for indoor flame

retardant applications: vault and building ONLY.2178-LS/FR Largeflame-retardantfiberopticspliceclosure

2178-LL/FR Extra-largeflame-retardantfiberopticspliceclosure2181-LS/FR Flameretardantcableadditionkit

2.0 Specifications for 2178-LS Closures SeriesMaximumcablediameter 1.0"(25mm)Minimumcablediameter 0.2"(5mm)Closurelength 21.9"(55.7cm)2178-Sclosureheight 4.7"(11.9cm)2178-LSclosureheight 8.0"(20.3cm)2178-LLclosureheight 11.3"(28.7cm)2178-SLclosureheight 8.0"(20.3cm)Availablesplicechamberspace:length 16.4"(41.6cm)Availablesplicechamberspace:width 5.5"(14cm)2178-Sheight 1.2"(3cm)2178-LSand2178-LLheight 3.7"(9.4cm)2181-LSheight(1) 1.5"(3.8cm)2181-LSheight(2) 3.0"(7.6cm)2181-LSheight(3) 4.5"(11.4cm)2181-SLheight 1.2"(3cm)

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2.1 3M™ Fiber Optic Splice Tray Capacities2524SpliceTray2524-FTSpliceTray

243M™Fibrlok™Splices24FusionSplices(3.0mmx60mmHeatShrinkSleeves)

2523SpliceTray 24FibrlokSplices123M™Fibrlok™Multi-FiberSplices*(12fiberseach)48DiscreteFusionSplices(3.0mmx60mmHeatShrinkSleeves)12MassFusionSplices(12fiberseach)

2522SpliceTray 12FibrlokSplices8FibrlokMulti-FiberSplices*(12fiberseach)24DiscreteFusionSplices(3.0mmx60mmHeatShrinkSleeves)10MassFusionSplices(12fiberseach)

2543SpliceTray 24DiscreteFusionSplices(2.4mmx60mmHeatShrinkSleeves)24DiscreteFusionSplices(3.0mmx60mmHeatShrinkSleeves)18MassFusionSplices(12fiberseach)

2527-48-DFSpliceTray 48DiscreteFusionSplices(3.0mmx60mmHeatShrinkSleeves)2527SpliceTray 12FibrlokSplices

24DiscreteFusionSplices(3.0mmx60mmHeatShrinkSleeves)12MassFusionSplices(12fiberseach)

*Varieswithribbonsize

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3.0 3M™ Fiber Optic Splice Closure Configurations and Capacity for 2178-LS Series

3.1 PortConfigurations

Closure Size (L x W x H )

Splice Application

Max Cable Entry PortsMain Branch

2178-S 21.9"x8.5"x4.7" (556x216x119mm)

ButtorInline

2Butt/2Inline 0Butt/2Inline

2178-Swithone2181-LS

21.9"x8.5"x6.2" (556x216x157mm) 2Butt/2Inline 2Butt/6Inline

2178-Swithtwo2181-LS


2178-Swiththree2181-LS


2178-LS 21.9"x8.5"x8.0" (556x216x203mm) 2Butt/2Inline 0Butt/2Inline

2178-LSwithone2181-LS


2178-LSwithtwo2181-LS


2178-LSwiththree2181-LS


2178-LL 21.9"x8.5"x11.3" (556x216x287mm) 2Butt/2Inline 0Butt/2Inline

2178-LLwithone2181-LS


2178-LLwithtwo2181-LS


2178-LLwiththree2181-LS


2178-SL SameasLS 2Butt/2Inline 0Butt/2Inline

Note: 2181-LS cable addition kits may be added to increase cable entry ports OR splice capacity.

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4.0 Kit Contents Note: 3M™ Fiber Optic Splice Closure 2178 LS-FR

Series is gray in color.

4.1 3M™FiberOpticSpliceClosure2178-Sand2178-S/FRKitContents(Figure1):

4.2 3M™FiberOpticSpliceClosure2178-LSand2178-LS/FRKitContents(Figure2):

4.3 3M™FiberOpticSpliceClosure2178-LLand2178-LL/FRKitContents(Figure3):a) Closureassemblyincludestraysupport,gasket,air

valve,bolts,andcablestrainreliefb)Sealingwashertrees ............................6 ea.c) Plugs ....................................................2 ea.d)Cableties,blueandgreen ...................4 ea.e) Sheathscuff .........................................1f) Hoseclamp ..........................................3 ea.g)Scotch®LinerlessRubber

SplicingTape130C .............................1rollh)Siliconegrease(5cctube) ..................2 ea.i) Smallallenwrench ..............................1j) 3M™DualLock™ReclosableFasteners

(fortraysupport) ............................. ....4k)Brassnutandwasher ..........................2ea.(varies)l) Tapecollargauge ................................1m)Traystrap ............................................1n)Backcoverclip ...................................4 ea.o)K-connector(large) .............................3 ea.p)Screw(large) .......................................3 ea.q)K-connector(small) ............................3 ea.r) Screw(small) ......................................3 ea.Transitiontubetie-downbracket (notshown) ..............................................1

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4.4 3M™FiberOpticSpliceClosure2178-S+81KitContents(Figure4):

4.5 3M™FiberOpticSpliceClosure2178-LS+81and2178-LS/FR+81KitContents(Figure5):a)Closureassemblyincludestraysupport,gasket,air

valve,bolts,andcablestrainreliefb)Sealingwashertrees ............................6 ea.c) Plugs ....................................................6 ea.d)Cableties,blueandgreen ...................4 ea.e) Sheathscuff .........................................1f) Hoseclamp ..........................................3 ea.g)Scotch®LinerlessRubber

SplicingTape130C .............................1rollh)Siliconegrease(5cctube) ..................2 ea.i) Smallallenwrench ..............................1j) 3M™DualLock™ReclosableFasteners (fortraysupport) .................................4k)Brassnutandwasher ..........................2ea.(varies)l) Tapecollargauge ................................1m)Traystrap ............................................1n)Backcoverclip ...................................4 ea.o)K-connector(large) .............................3 ea.p)Screw(large) .......................................3 ea.q)K-connector(small) ............................3 ea.r) Screw(small) ......................................3 ea.s) 3M™CableAdditionKit2181 ............1Transitiontubetie-downbracket (notshown) ..............................................1

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4.6 3M™CableAdditionKit2181-LSand2181-LS/FRContents(Figure6):a) Adapterwithgasket ............................1b)Sealingwashertrees ............................6 ea.c) Plugs ....................................................4 ea.d)Cableties,blueandgreen ...................4 ea.e) Sheathscuff .........................................1g)Scotch®LinerlessRubber

SplicingTape130C .............................1rollg)Siliconegrease(5cctube) ..................2 ea.h)Smallallenwrench ..............................1i) Bolts ....................................................10 ea.j) Tapecollargauge ................................1k)K-connector(large) .............................2 ea.l) Screw(large) .......................................2 ea.m)K-connector(small) ............................2 ea.n)Screw(small) ......................................2 ea.o)Buffertuberetention ...........................2

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Note: 3M™ Fiber Optic Splice Closure LS/FR Series is gray in color.

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4.7 AdditionalMaterialsRequired:

• 3M™CableCleaner4415 • #6AWGgroundwireorequivalent • Splicetray/organizer

• 3M™Scotchlok™ShieldBondConnector 4460-Dor4460-D/FO,ifusingshieldedcables

• Cableties

4.8 ToolsRequiredforClosureAssembly

• 3/8"(10mm)hexdriver • 1/2"(13mm)hexdriver • 7/16"(12mm)hexdriver

• Snips• Torquewrench• Phillips-headscrewdriver

4.9 ToolsRequiredforCablePreparation

• Tapemeasure • Electrician’spliers

• Snips• Splicer’sknife

5.0 Cable PreparationNote: For clarity, the 3M™ Fiber Optic Splice Closure 2178-S has been shown. Installation procedures are the

same for all combinations of the 2178-LS series of splice closures.

Note: When removing cable sheathing, do not cut, kink or damage underlying layers. If damage occurs, cut back sheath to adequately inspect and repair.

5.1 Remove96"(244cm)ofoutercablesheath(andshieldorarmor,ifpresent).Removesuccessivesheathlayersandwrappingtoexposebuffertubesprotectingfibers.Staggerlayersasrecommendedbycablemanufacturerorperstandardpractice.

5.2 Removeallcablegrease.Cleanallbuffertubesanddielectricstrandswithapprovedcleaner.

Note: Carefully follow health, safety and environmental instructions as given on Material Safety Data Sheet or container label for cable cleaner solvent being used.

5.3 Trimoffanysolidfillertubesanddiscard.

Note: Strength member may be trimmed back to no less than 3" (76 mm).5.4 Scuff5"(127mm)ofeachcablesheathend

usingthesuppliedsheathscuff.

Note: All cables must be scuffed.

Figure 7

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6.0 Remove the Tray Support6.1 Removethetraysupportbylooseningthe

captivescrews,thenslidingthetrayforwardandliftingstraightupfromclosurebase.Thereisnoneedtofullyremovethescrews.

Figure 8

Figure 9 Tray support in 3M™ Fiber Optic Splice Closure

2178-S & 2178-SL

Figure 10 Tray support in 3M™ Fiber Optic Splice Closure

2178-LS & 2178-LL

7.0 Cable Installation7.1 Takethecableandplaceitintothecableport,

aligningtheendofthecablesheathwiththecablestrainreliefbracketasshown.Thecablesheathshouldendapproximately1/4"(6mm)beyondthehoseclamptied-down.

Figure 11

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7.2 Markboththecutoffsonthestrainreliefbracketandtheplacementofthewashers.

Figure 12

Figure 13

7.3 Cutthestrengthmembers.7.4 Selectthesealingwashers.Usethesmallest

insidediametersealingwasherthatwillfitontothecable.

Proper size washer

Figure 14

7.5 Formidspan,expressorloop-throughapplications,splitthewasherusingsnipsandplaceonthecable.

Figure 15

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7.6 Thesetscrewswhichholdthecabletiedownbracketsarefactoryinstalled.Onesetscrewmayberemoved.Removethecablestrainreliefbracketusingtheallenwrenchincludedinthekit.Itisrecommendedtotapetheallenwrenchtotheinsideoftheclosureforlateruse.

Figure 16

For Dielectric Cables:

7.7 For cables with no central strength member:Benddownorbreakoffthecenterlegandtietownoutsidestrengthmembersasshown.

Slidestrengthmembersunderretentionlugsandtightenboltsto40in./lbs.±5in./lbs.(4.6N•m±0.6N•m).

Installhoseclamparoundcableandthroughslotinstrainreliefbracket.Tightento40in./lbs.±5in./lbs.(4.6N•m±0.6N•m).

Note: Tighten first then remove prongs Figure 17

7.8 For cables with central strength member: Assemblestrengthmemberclampontostrainreliefbracketasshown.Markandcutthecentralstrengthmemberatendofstrengthmemberclamp.Benddownorbreakoffoutsidelegs.

Slidecentralstrengthmemberunderretentionlugandtightenboltto40in./lbs.±5in./lbs.(4.6N•m±0.6N•m).

Installhoseclamparoundcableandthroughslotinstrainreliefbracket.Tightento40in./lbs.±5in./lbs.(4.6N•m±0.6N•m).

Figure 18

Figure 19: Prongs being bent Figure 20: Prongs being broken off

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7.9 Ifsecuringthestrengthmemberisnotrequired,thefronthalfofthesheathretentioninsertcanberemovedasshown.

7.10 Reinstallsetscrews.

Note: SET SCREWS MUST NOT EXTEND ABOVE PLASTIC “U” CHANNEL. INSTALL ONLY UNTIL FLUSH WITH “U” CHANNEL.

Figure 21

Figure 22

For Armored Cables:

7.11 Installa3M™Scotchlok™ShieldBondConnector4460-Dundercableshieldpercompanypractice.Installgroundbraidpercompanypractice.

Note: Refer to vendor instructions for shield bond connector installation.

Figure 23

7.12 Installonegreencabletieonthe“FeederCable”andtrim.Installonebluecabletieoneach“DistributionCable”andtrim.

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8.0 Cable/Port Seal AssemblyNote: For installation into 3M™ Multiport Grommet, use the instructions provided in grommet kit.

8.1 Therubbergasketisfactoryinstalledinall3M™ FiberOpticSpliceClosures2178-LSSeries. Ifthegasketbecomesdamaged,replaceusingthe3M™GasketKit2178-LS/GSKT.

Figure 24

8.2 UsetheScotch®LinerlessRubberSplicingTape130Cincludedwiththeclosuretobuildthecableseals.Checktheplacementofthetapebypositioningthestrengthmemberclampwhereitwillbeanchored.

Figure 25

8.3 Wrapthetapearoundthecable,ensuringthattheedgesstayevenandflushwiththesealingwashers.

Figure 26

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8.4 Thetapeshouldbewrappedto1.00"(25mm)outsidediameter.Usethetapecollargaugetodeterminetapewrap.Tapewrapshouldnotbesmallerthantheleftsideofthegaugeandnotlargerthantherightsideofthegauge.

Figure 27

8.5 Applyathinlayerofthesuppliedsiliconegreasetothebottomsideofthegasketintheportarea.

Figure 28

8.6 Applysiliconegreasetotheoutsideoftheportareaonthegasket,theareabetweentheports,andtothetopofthegasketalongthesidesoftheclosure.

Note: Carefully follow health, safety and environmental instructions as given on Material Safety Data Sheet for the silicone grease.

Figure 29

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8.7 Applysiliconegreasetothesplitorcutedgeofthegasket.

Note: Re-install bracket with assembled cables using set screws.

Note: SET SCREWS MUST NOT EXTEND ABOVE PLASTIC “U” CHANNEL. INSTALL ONLY UNTIL FLUSH WITH “U” CHANNEL.


Figure 30

8.8 Applythesiliconegreasetothetapecollarbetweenthewashersandtotheoutsideofthesealingplugs,ifany. Plugsshouldbeplacedinsidegasketattheunusedentryports.

Note: The grease allows the cables and gasket to slide into place and helps seal the cable port area.


8.9 Placecablesinsidetheportareaonthegasket.Ensurethattherubbertapesealsareinsidethegasketports. Thetwowashersshouldbeplacedintheportgroovesontheclosurewithonewasheroneachsideofthegasket.

Note: Be sure that both washers are perpendicular (90°) to cable.

8.10 Applyathincoatofthegreasetothetopofthegasketaroundtheentireclosureperimeter.

Figure 31

8.11 Installbackcoverclipswithcableties(notprovided)untilsnug.

Figure 32

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9.0 Buffer Tube/Fiber Management 9.1 Gatherallbuffertubesfrom“FeederCable”and

installonegreencabletie.Installonebluecabletieonthe“DistributionCable”buffertubes.Installtwobluecabletieson“BranchCable”buffertubes.

9.2 Coilbuffertubebundlesinsideclosurebasepercompanystandard.

9.3 Forribbontransitiontotrayapplications,securethetransitiontubetothebracketmountedinthebaseasshown.

Figure 33

9.4 Installtraysupportintoslotsontheclosurebase,slideintoplace,andtightenscrewsuntilsnug.

9.5 Installsplicetraysandsplicespercompanystandardandinstallationinstructions.

Figure 34 9.6 Whenthetraysupportandtrayareinplace,

mounttheotherendofthetransitiontubetothetray.Ensurebuffersortransitiontubeskeepthelargestpossibebendradiuswhenroutedintheclosure.

Note: 3M™ Fiber Optic Splice Tray 2543 shown for illustration purposes. Refer to individual tray instructions for more information.

Figure 35

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10.0 Splice Closure Assembly10.1 Beforeplacingtheclosurecoveroneitherthe

closurebaseorthe3M™CableAdditionKit2181-LSor2181-LS/FR(topadapter),ensurethattheairvalvematchesupwith“AIR VALVE END”noteonthebaseortopadapter.

10.2 Screwallboltsuntiltheyhavebeenthreadedseveralcompleteturnsintothreadedinserts.

Note: If 3M™ Universal Aerial Hanger Bracket 2183 or 2197 is to be used, follow its practice prior to splice closure assembly.

Figure 36

10.3 Hand-tightentenboltsinsequenceshown.

Note: See numbers on splice closure.Finaltighteningshouldbedonewithatorquewrenchinsequenceto240in/lbs.(27.12N•m)torque.Closure leakage may occur if procedure is not followed.

10.4 Tocheckforleaks,flashtestthespliceclosurebyapplyingairto5psi(0.34bar)MAXIMUM, THEN RELEASE PRESSURE.

Note: Use only clean, dry air or nitrogen from your company-approved source.

Note: Use only E-pressure testing solution or diluted dish washing soap for flash testing.

9 6 2 4 8

3 1 5 710

Figure 37

3M™ Fiber Optic Splice Closure 2178-LS Series NotesNote: Information on accessories available for the 2178-LS and FR Series closures can be found in the back

of this instruction document.Note: If wall mount bracket is required for the 3M™

Fiber Optic Splice Closure 2178-S, 2178-S/FR, 2178-LS or 2178-LS/FR use the 3M™ Mounting Bracket Kit 2198. Attach brackets to base (as shown) prior to cable preparation.

Tighten bracket screws securely.

Figure 38

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Note: If wall mount bracket is required for the 3M™ Fiber Optic Splice Closure 2178-LL, 2178-LL/FR, 2178-S, 2178-S/FR, 2178-LS or 2178-LS/FR, use the 3M™ Mounting Bracket Kit 2199. Attach brackets to base (as shown) prior to cable preparation.

Figure 39

Tighten bracket screws securely.

Figure 40

Note: Proper sealing of the 3M™ Fiber Optic Splice Closure 2178-LS and 2178-LS-FR Series depends on strict adherence to these instructions and the use of specified materials. Deviations can cause leakage or closure damage. Maintain clean sealing surfaces to ensure proper sealing.

11.0 Splice Closure Reentry11.1 Removethetenboltsholdingthespliceclosurehalvestogether.Thecovercaneasilybeseparatedfrom

thebasebyhand.

11.2 Whenresealingtheclosure,reapplysiliconegreasetothegasket.

11.3 Followsteps10.3–10.4toresealclosure.

12.0 3M™ Cable Addition Kit 2181-LS and 2181-LS/FR Installation12.1 Installationproceduresforthe2181-LScableadditonkitarethesameasthe2178-LSseriessplice

closureswiththefollowingexceptions: ForSINGLEcableadditonkitinstallation,replacealltenboltsinsertedintheclosurecoverwiththetenboltssuppliedwiththe2181-LSor2181-LS/FRcableadditionkit. ForDOUBLEcableadditonkitinstallation,replacealltenboltsinsertedintheclosurecoverwiththetenlongerboltssuppliedwiththe3M™ Double Adapter Bolt Kit 2181-B. ForTRIPLEcableadditonkitinstallation,replacealltenboltsinsertedintheclosurecoverwiththetenlongerboltssuppliedwiththe3M™ Triple Adapter Bolt Kit 2181-C.

Note: The 2181-B and the 2181-C kits contain only the longer bolts. These are needed for two and three cable addition kits repectively.

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12.2 Thetraysupportcanbeinstalledintheclosurebaseoranyofthecableadditionkits.Installthetraysupportontothedesiredlevelbyplacingitintotheslotsonclosurebaseoradapter,andtighteningthescrewsuntilsnug.

12.3 The following steps are for all adapters installed:

a. Topreventbuffertubesandfibersfrombeingdamagedorpinchedbetweenadaptersandtheclosure,theadaptersmustbepulleddownintoplacebeforetheclosurecoverisinstalled.

Figure 41

b. Addbuffertuberetentionintoeachadapterbeinginstalled.

c. Fordoubleandtripleapplications,removeallcornerinsertsonthelowerleveladapter(s).Ascrewdrivercanbeusedtotakeoutthecornerinserts.

Figure 42

d.Thethreadedinsertsshouldbeinthefourcornersonthetopportionofthetopadapteronly.

e. Priortoplacinganadapterontheclosurebase,ensurethatthenote“AIR VALVE END”ontheadapterisalignedwiththe“AIR VALVE END”noteonthegasketsandtheclosurebase.

f. Ifplacingoneadapteronanotheradapter,makecertainthenote“AIR VALVE END”linesupforalladapters,gasketandtheclosurebase.

g.Setadapter,withtheword“BOTTOM”facingdown,ontopoftheclosure.

Note: It is important to orient the gaskets correctly on each level of the assembly (see Section 6.2 and 6.3).h.Continueassemblyforeachlevel,followingtheinstructionsfromSection4.0to8.0.

Figure 43

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i. Aftercableshavebeeninstalledonthelowerlevelsandtopadapterisinplace,inserttheboltsfromunderneathintothefourcornerinserts.Screwthefourboltsuntiltheyhavebeenthreadedseveralcompleteturnsintothecornerinserts.

Figure 44

j. Slowlybringadaptersdownbyworkingfromcornertocorner(asshown)untilsnug.Ensurenobuffertubeshavebeenpinchedbetweentheadaptersandtheclosurebase. 1 3

4 2

Figure 45

12.4 Afterassemblyiscomplete,followtheinstructionsin9.0exceptonlytightenbolts1to6inthesequenceshown.Aftercoverhasbeeninstalledwithsixbolts,removethefourcornerbolts.Usethesefourboltsfortheremainingcoverbolts,usingthesequenceshown.Finaltighteningshouldbedonewithahandwrenchto240in.-lbs.(27.12N.m)torque.Torque -FR Closures to 50 in.-lbs. (5.6 N.m). Closure leakage may occur if procedure is not followed. Tocheckforleaks,flashtestspliceclosurebyapplyingairto5psi(0.34bar)MAXIMUM, THEN RELEASE PRESSURE.

Note: Use only clean, dry air or nitrogen from your company-approved source.

Note: Use only E-pressure testing solution or diluted dish washing soap for flash testing.

9 6 2 4 8

3 1 5 710

Figure 46

13.0 3M™ Fiber Optic Splice Closure Re-entry with Adapters13.1 Removebolts7,8,9and10.Installthesefour

boltsfromunderneathintothefourcornerinserts.Tightenuntilsnug.Removeremainingbolts.Thecovercanthenbeeasilyremovedbyhand.Thisprocedurewillkeeptheadaptersinplacewhilethecoverisremoved.

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14.0 Closure Accessories

3M™ Ground Isolation Kit 2178-EGI-External 3M™ Wall Mount Bracket 2199 3M™ Aerial Hanger Kit 2183

3M™ Cable Fanout Kit 2519 and 2519-X 3M™ Mounting Bracket Kit 2198 3M™ Aerial Hanger/Hinge Kit 2197

3M™ Adjustable Aerial Hanger Bracket Kit 2184 3M™ Multiport Grommet 1.0" O.D. 4-port flat drop

3M™ Gasket Kit 2178-LS/GSKT

3M™ Cable Cleaner 4415 3M™ Fiber Optic Splice Tray 2543 3M™ Scotchlok™ Shield Bond Connector 4460-D

3M™ Multiport Grommet 1.0" O.D. 2178-4PGR-0.28" dia.

4-port round drop

3M, Scotch, Dual Lock and Scotchlok are trademarks of 3M Company. Scotch is a registered trademark of 3M Company.

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3M Fiber Optic Splice Closure 2178-LS Series with Gasket · 3M™ Fiber Optic Splice Closure...

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