Hypertherm HyIntensity Fiber Laser Rev.3 - Manual (Page 74)

InstallatIon
2-26 HyIntensity Fiber Laser Instruction Manual – 807090 Revision 3
General Precautions
The Beam delivery optical cable is placed in a protective foam tray on top of the fiber laser supply enclosure for
shipping. This cable is rugged and flexible, but it must be unpacked and handled carefully to prevent damage to the
delicate optical fiber inside.
The following precautions are recommended at all times:
• Do not remove the black protective cap from the end of the Beam delivery optical cable until instructed to do so
later in these instructions
• At least two people should be involved in handling the Beam delivery optical cable.
• The cable exits the fiber laser supply enclosure at the top through a strain relief block; do not attempt to push or
pull the cable at this point.
• The end of the beam delivery optical cable that attaches to the laser head is the “fiber bayonet”; when not
attached to the laser head, this end should have the protective cap installed and be supported by hand at all
times. Do not allow it to swing freely while handling the beam delivery optical cable as this component is heavy
and can cause the flexible cable to bend sharply and damage the optical fiber.
• Do not exceed the minimum short-term bend radius of the cable, 100 mm (4 in).
Unpacking Instructions
1. Carefully lift the entire coil of the beam delivery optical
cable out of and above the foam tray and slide the
tray out from under the beam delivery optical cable.
If the beam delivery optical cable enters the tray
through a hole instead of a slot, it will be necessary to
carefully uncoil the entire length of the beam delivery
optical cable in order to remove the foam tray. See
instructions in steps 3 and 4 for uncoiling the beam
delivery optical cable.
2. Place the beam delivery optical cable back on top
of the fiber laser supply enclosure inside the four
retaining brackets as shown in the picture to the right.
3. Uncoil the desired length of beam delivery optical
cable one loop at a time.
4. As each loop is uncoiled, make sure to relieve torsion in the beam delivery optical cable; if residual torsion is
allowed to build up, the beam delivery optical cable may twist unexpectedly. Usually, torsion can be relieved by
twisting the free end of the beam delivery optical cable 360 degrees for each loop uncoiled from the bundle.
5. For temporary, overhead installation of the beam delivery optical cable, support it every 1-2 m (3.3-6.6 feet)
6. Attach the beam delivery optical cable to the collimator at the laser head according to the beam delivery optical
cable installation instructions in this section.
7. Carefully inspect the entire beam delivery optical cable to ensure that all bends are maintained at a radius
greater than 100 mm (4 in).