Daily Maintenance of Optical Fiber Cleaver
Cleaning
1. To keep excellent cleaving quality, cleaning must be performed
after use.
2. Clean the blade edge, the rubber pad of the clamp and the anvil
with a cotton swab moistened with isopropyl alcohol.
3. Clean the fiber holder receptacle and the grooves of the single
fiber adapter, too.
Caution:
l Dust on the blade edge or the clamp might cause loss of cleaving
performance or poor quality of fiber end face.
l Do not clean them with any other kind of chemicals.
l If the top clamp lever is closed leaving an off-cut fiber on the
damp, the rubber pad of the clamp will have a trace of the fiber, causing loss
of cleaving performance or poor quality of fiber end face.
Blade position change
As the number of the cleaver's increases, a symptom that fiber cannot be
cleaved or cracks will occur. If such symptom continues to appear, the blade
position is worn out. Rotate the blade according to the following procedures
and use a new blade position.[Reference] 1,000 fibers per position.
1. Loosen the blade setscrew. Note that the blade setscrew is a
slotted screw.
2. Rotate the blade to the next position by pressing its side or edge
with a cotton swab. Rotate the blade in the direction indicated by the arrow.
Caution:
l Do not rotate the blade with hands.
l Do not rotate the blade with metallic tweezers. Doing so may
damage the blade.
3. Tighten the blade setscrew. [Reference] Optimum torque: Approx.
0.98N-m (10kgfem).
Caution:
l Do not over-tighten the blade setscrew. The screw will get worn
out.
4. Try and cleave the fiber. Make visual check of the fiber end face
with the splicer. If the fiber end face is poor, adjust the blade height.
(Refer to "Blade height adjustment.)
Blade height adjustment
1. Loosen the 2 cross head screws.
2. Loosen the blade height locking screw.
3. Place a mechanical pencil lead or a light stick on the clamps.
Slide the blade carriage back and forth and turn the blade height adjustment
screw.
Tips
l To make the blade higher, turn
the blade height adjustment screw clockwise.
l To make the blade lower, turn
the blade height adjustment screw anti-clockwise. (Turn the screw while pushing
the blade down with a cotton swab.)
l To make the blade lower, turn
the blade height adjustment screw anti-clockwise, while pushing the blade down
with a cotton swab.
4. Turn the blade height adjustment screw clockwise by more 4 to 6
marks from the reference point.
Caution:
l Do not make the blade too high. Doing so will damage the anvil
and increases the chipped fiber ends.
5. Tighten the blade height locking screw. [Reference] Optimum
torque: Approx. 0.59N・m (6kgf，cm)
6. Tighten the 2 cross head screws. [Reference] Optimum torque:
Approx. 0.98N,m (10kgf・cm)
Blade replacement
(0: If you have bought the fiber cleaver with off-cut collector, please
remove it first.)
1. Unscrew the blade setscrew.
2. Remove the blade with tweezers.
Caution:
l The edge of a blade is manufactured precisely. If the edge is
hit against metallic objects, it will crack, resulting in poor cleaving
performance. Handle with care.
l When using metallic tweezers, be careful not to damage the
blade.
l Do not touch the blade with hands. Use gloves.
l Dispose of the old blade properly.
3. Insert a new blade in the cleaver so that "1” of the number
sticker is in the top position. The hole of the blade should be aligned with
the hole of the blade receptacle.
4. Tighten the blade setscrew completely, while pressing the side of
the blade. [Reference] Optimum torque: Approx. 0.98N・m
(lOkgf-cm)
5. Adjust the blade height, referring to “Blade height adjustment”.
Troubleshooting
If the cleaving problem occurs, the
followings are possible causes.
Problem: The fiber
is placed obliquely in the cleaver.
Cause: Make sure
that the fiber is placed straight in the cleaver.
Problem: The blade
height is too high.
Cause: Adjust the
blade height.
Problem: Dust or
dirt remains on the clamp.
Cause: Clean the
clamp.
Problem: Dust or
dirt remains on the blade.
Cause:Clean the blade.
Problem: Dust or dirt
remains on the fiber.
Cause: Remove the
fiber coating and clean the bare fiber again.
If the problem still persists, please contact the
maintenance service center.