7
4.0 Cable Preparation
Note:
When removing cable sheathing, do not cut, kink, or damage underlying layers. If damage occurs,
cut back sheath to adequately inspect and repair.
4.1
Remove 96" (244 cm) of outer cable sheath (and shield or armor, if present). Remove successive sheath
layers and wrapping to expose primary tubes protecting fibers. Stagger layers as recommended by cable
manufacturer or per standard practice.
4.2
Remove all cable grease. Clean all primary tubes and dielectric strands with approved cleaner. Cover all
sharp edges with vinyl tape.
Note:
Carefully follow health, safety and environmental instructions as given on Material Safety Data
Sheet or container label for cable cleaner solvent being used.
4.3
Trim any solid filler tubes and discard.
Note:
Do not trim strength members at this time.
4.4
Scuff 5" (127 mm) of each cable end using supplied sheath scuff.
Note:
Do not use a carding brush to scuff sheaths.
Note:
If wall mount bracket is required for the
3M
™
2178-LL Splice Case, use the 3M
™
2199
Mounting Bracket Kit. Attach brackets to base
(as shown) prior to cable preparation.
Torque bolts to 25 in-lbs
±
5
in-lbs (2.8 N
•
m
±
0.6 N
•
m).
Note:
Proper sealing of the 3M
™
2178-L/S Series Fiber Optic Splice Case depends on strict adherence to
these instructions and the use of specified materials. Deviations can cause leakage or case damage.
Maintain clean sealing surfaces to ensure proper sealing. DO NOT USE any release agents or other
unspecified materials. These types of materials may lead to loss of sealing effectiveness.
Note:
Installation procedures are the same for all combinations of the 2178-S, 2178-LS, and 2178-LL Splice
Cases.
