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3.8

Closure Assembly:

a. Center lower closure half under protective

shell and assemble upper half (upper half has
fill ports) mating the tongue and groove.
Spacer Web strip ends will close, centering
protective shell.

b. Locate two hose clamps outboard from each

"3M" on the closure body and tighten.  Set
end caps in grooves on closure body ends and
secure with 2 other hose clamps.  Center clo-
sure over protective shell.  Seal end caps to
cable sheaths with 2 half-lapped layers of DR
Tape.  Start the half-lap layers on the cable
and tape up the cone.

d. Slightly incline one closure end about 1/2"

(13 mm).  Place supports under the closure
for encapsulant filling.

Groove

Tongue

1/2"

(13 mm)

c. Position closure for burial on firmly packed

earth.  Avoid sharp bends or kinks in the
cable.

e. Insert funnel into lower closure fill port.

(During filling, air will escape from higher
end.)

f. Two 3000 gram units of 3M 4442 High Gel

will be required to fill the closure.

g. Mix and pour encapsulant until closure is

completely filled and trapped air is removed.

Note:   Carefully follow safety, health and envi-

ronmental information on container label
or Material Safety Data Sheet for the
encapsulant being used.

h. Close fill ports with the snap-in caps.

i. Check for any leaks.  Tighten hose clamps or

retape as required.  If leaks are observed, add
encapsulant to remove air voids.

j. Closure can be buried immediately.

Summary of Contents for 2177

Page 1: ...2177 Fiber Optic Closure Instructions July 2002 78 8130 5297 0 B ...

Page 2: ...Contents 1 0 General 3 2 0 Kit Contents 3 3 0 Installation 4 ...

Page 3: ... contact with exposed optical fibers Reenterable encapsulant and a suitable splice organizer must be ordered separately Maximum closure capacity is 72 mechanical splices or 72 fusion splices using the 3M 2522 Splice Tray 2 0 Kit Contents Hose Clamps 4 Fill Cap 1 Double End Caps 2 Snap In Caps 2 Closure Top with Fill Ports 1 Closure Bottom with Spacer Web 1 Funnel 1 Protective Shell 6 152 mm Closur...

Page 4: ...ns or splicing b Overwrap scuffed cable sheath with plastic vinyl tape to prevent contamination during cable cleaning or splicing 3 5 Bonding and Grounding a Open sheath per instructions supplied with organizer Degrease buffer tubes if necessary b If cable shield is present bond across splice per splice organizer instructions c If external ground is required feed a 6 AWG solid ground wire through ...

Page 5: ...ble Diameter Required 4 5 10 13 mm 2 5 8 13 20 mm 1 8 1 0 20 25 mm 0 c Slide protective shell halves over splice area and sheath collars and external ground lead if applicable Push shell together until it snaps into place A 0 2 5 mm wide gap is present when halves are correctly assembled d Wrap center seam with foam tape and press into place Butt ends and trim excess e Center shell leaving approxi...

Page 6: ...3 mm Place supports under the closure for encapsulant filling Groove Tongue 1 2 13 mm c Position closure for burial on firmly packed earth Avoid sharp bends or kinks in the cable e Insert funnel into lower closure fill port During filling air will escape from higher end f Two 3000 gram units of 3M 4442 High Gel will be required to fill the closure g Mix and pour encapsulant until closure is comple...

Page 7: ... expose protective shell e Remove tape and sealant from protective shell ends and center section Separate protective shell halves to expose splices f After completion of repair reassemble as outlined in Sections 3 4 to 3 7 The protective shell can be reused g Place new 3M 4430 Spacer Web 3 W x 19 L inside closure and reassemble closure as outlined in Section 3 8 End caps and sleeves can be reused ...

Page 8: ...ILITY OR FITNESS FOR A PARTICULAR PURPOSE If this product is defective within the warranty period stated above your exclusive remedy shall be at 3M s option to replace or repair the 3M product or refund the purchase price of the 3M product Except where prohibited by law 3M will not be liable for any loss or damage arising from this 3M product whether direct indirect special incidental or conse que...

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