P/N 840259
16
Rev. C 7-29-05
5. Cut the fiber.
Note
This is the most critical step for a successful installation.
a. Screw the Cutting Shield onto the seal nut until it bottoms out. At this point, only fiber should be sticking
out past the edge of the cutting shield. If jacket or grommet is sticking out, disassemble seal nut assembly
and adjust the grommet position.
b. Hold the cable at the seal nut, keeping the cable straight.
CAUTION
DO NOT use too much force - you will only damage the FiberKnife and/or your cut. Let the heat of the knife do the cutting.
DO NOT saw, wiggle or rotate the blade back and forth.
On the larger cables, it may help to rotate the handle side of the blade downward slightly.
•
Place the blade against the cutting shield at a 10-15 degree angle; see Figure 6.
•
Press with a light to moderate constant pressure using the cutting shield ring as a guide.
•
Ease up towards the end of the cut to keep the last few fibers from folding over.
6. Remove the Cutting Shield.
WARNING
Shield may be hot. Exercise caution when removing it. Failure to do so could cause burns.
7. Inspect the cut.
a. The cut should be smooth and flat, with no visible lines or surface bubbles. When training and performing
your first cuts, using a small magnifying glass can help see imperfections that may be difficult to see with the
naked eye.
b. A good professional cut is critical to the performance of the fiber optic system.
c. There are several things which can cause a bad cut:
•
The cable jacket was not completely stripped back.
•
Sawing or wiggling the blade during cutting, or incorrect blade angle.
•
Burrs on the edge of the cutting shield.
•
The FiberKnife is not warmed up enough. Allow enough time between cuts for the knife to reheat, and
keep it out of the wind while it is heating.
•
The blade needs replacing about every 15 - 20 cuts; replacement pack of 3 blades, P/N 21005600.
C. Installing lenses
1. Wipe the fiber face with an Optic Prep Pad or a clean cloth to remove any
residual powder.
2. If using the Standard Lens, fill the entire gel cup located on the inside of the
lens with OptiFusion gel until it crests above the gel cup edge. If using the
Wide Angle Lens,
NO GEL IS REQUIRED,
see Picture 6 on pg. 14.
3. Assemble the lens to the seal nut.
a. Make sure the lens and seal nut O-rings are clean and in place.
b. Hold the compression nut with a wrench and hand tighten the lens onto
the seal nut until lens bottoms out. Keep the end of the cable straight
during this step.
Fiber Knife
Blade
Cutting Shield
Figure 6.
