Televes 232301 Fiber Optic Cleaver User Manual

Ref. 232301
Art.Nr.OSMN
User manual

Safety warnings

To handle this product safely it is necessary to read and comply with the following safety warnings.

1. Do not grease the blade, this could cause damage to the fiber opticcleaver.

2. This is a precission tool, if it falls to the ground it is likely to be damaged, not making the cuts correctly from that moment.

3. Do not ever touch the blade with your hands ot other body parts, its blade edge could make harm to yourself.

4. The fiber optic cleaver should be stored in its protective case when it is not in use (avoid storing in humid places).

5. Do not ever use the fiber optic cleaver in unsafe positions.

6. Fiber optic and its wastes are extremely dangerous because of their thin thickness. This situation must be taken into account when handling the cleaver to avoid harm in hands, eyes, … Thus, the workers handling this cleaver must always take precautions such as: Always handle the device wearing safety glasses.
   Collect leftover fibers (after cutting) in a special container.
   Do not ever touch the head of a fiber optic cable with your bare hands.
   Do not ever touch the blade directly.

7. Do not strike the work lever, it could lead the fiber optic cleaver to lose cutting quality.

Basic specifications

Suitable fiber: SM y MM.
Fiber diameter to work with: Fibers with coating of 250, 900microns
and fibers with 3mm protection.
Diameter of the fiber to be cut: 125μm.
Uncoated fiber length: 5-20 mm.
Blade cutting life: 23 positions x 1000 uses in each position.
Fiber optic cleaver dimensions: 95mm (Width) x 77mm (Height) x
59mm (Depth).
Fiber optic cleaver weight: 350g.

Tool components
– Work lever.
– Rubber mounts for the fiber.
– Container for fibers.
– Blade slider.
– Guide slot 250 microns.
– Guide slot 900 microns.
– Guide slot 3 mm.
– Fiber holding flange.
– Cutting blade.
– Closing magnet.

Usage procedure

1. Push the work lever (the fiber optic cleaver will open).
2. Open the fiber holding flange.
3. Peel from 30 to 40mm of the fiber that is going to be cut (leave a fiber thickness around 125 microns). Clean the peeled fiber with an isopropyl alcohol wipe.
4. Place the peeled fiber over the guide slot (choose one of the 3, based on the type of fiber used). The fiber length that must remain after the cut will depend on the requirements of the fusion splicer or other equipment of fiber used. The usual value is 16mm, but it can be adjusted between 5 and 20mm.
5. Close the fiber holding flange.
6. Make sure that the fiber is perpendicular to the cutting blade.
7. Close the work lever.
8. Move the blade slider up to the limit. The fiber will now be cut.
9. Push the work lever (the fiber optic cleaver will open). At this point the leftover fiber should be pushed into the fiber storage container.
10. Grab the fiber and open the fiber holding flange.
11. Remove the fiber.
12. After several operations, it is recommended to empty the fiber storage container.

Procedure, in case of cut problems

If you can not cut the fiber, check:

1. Both fiber protections (900 and 250 microns) are correctly removed by the stripping tool.
2. The blade is not worn or marked (it is possible to have control over the number of cuts, based on the splice counter available in the splicer).
3. The height of the blade is correct (the blade must protrude minimally on the fiber supporting rubbers).

If the fiber is shattered in the cutting process, check:
The blade height. If it excedes too much the fiber supporting rubbers, it will cause the mentioned anomaly. To control that the height is not excessive, place an element that forms a straight line between both rubbers. The correct height of the blade will be the one which rubs this element, being this element placed over the rubbers.
If the cut has an excessive angle, check:
The fiber placed on the cleaver does not make an angle with the rubber mounts. The said angle could lead to problems when splicing (greater cutting angle). The fiber must be placed over both rubber mounts forming a straight line between them. The picture shown below is a sample of how the fiber should NOT be placed.

To correct this, rotate the fiber over itself until the natural curve of the fiber is down and, therefore, the fiber maintains a straight line betweenboth rubber mounts:

Maintenance and adjustment

1. Fiber optic cleaver maintenance
   To mantain an excellent quality of cut cleaning, it is advisable to clean (regularly with a cotton swab moistened in isopropyl alcohol):
   – The edge of the cutting blade.
   – The 4 rubber protection pads located on the blade sides.
   – The diverse support guides for the fiber.

2. Blade height adjustment

Using a cross-head screwdriver (select the adequate thickness, avoiding to damage the cover), act on the screw located at the bottom of the container for fibers.

1. Remove the container for fibers.

2. Loosen phillips screws (A) (do not remove these screws).

3. Push the blade slider to leave in sight the allen screws (seen from above).

4. The screw (B) is the one that has to be used to set the blade height.
   If the screw (B) is tighten, it will go up. If the screw (B) is loose, the blade will go down (make use of a flat screwdriver when pushing the whole element down to ease this opperation).

5. The screw (C) is the one that acts as a position blocker (once the height is adjusted, tighten this screw to fix the whole element).
   To start the adjustment, the screw (C) has to be, to some extent, loosen (without reaching the point of the removing of this screw).

6. Tighten phillip screws (A).

A Phillip screws
B 1.5 allen screw
C 2.5 allen screw

Bear in mind the following indications:
An insufficient blade height will lead to the lack of the cut.
An excesive blade height will lead to a shattered cut or the lack of the cut.
The wear of the blade will lead to the lack of the cut, an inadequate cut or the break of the fiber.
To regulate the blade height it is recommeded to use an external element as reference. The blade should rub the external element, without this one leaving a distance from the rubber mounts.

In case that the blade position (1-23) is modified, usually the height would need to be readjusted.

3. Blade position adjustment
The fiber optic cleaver has a blade with 23 positions. Each position allows to perform 1000 cuts as minimum value, which represent a total of 23000 cuts per blade as minimum value.

While the cleaver performs its function correctly, do not modify the position of the blade even if it has exceed 1000 cuts. Do only modify the position of the blade after verifying that the height of the blade is the adequate, even though the cut not being the adequate or the cut not being performed.

1. Loosen the screw placed on the center of the blade.
2. Rotate the blade over itself. To carry out this process:
   – Access from the upper of the blade.
   – Rotate the blade by the side (not by the edge) using a wimper, avoiding in this way to cut yourself.

4. Blade replacement.
After 23000 cuts, the blade could need to be replaced. To replace the blade follow these steps:

1. Remove the container for fibers.
2. Remove the central screw that fastens the blade.
3. Replace the blade for a new one and mount all the elements again,reversing the steps carried out.

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