HTP Micro Cut 380, Быстрый старт, Страница: 8 / 12

5. Connect the ground clamp to a clean surface on the vehicle
or the work piece that is as close as possible to the area to be
cut. Make sure the ground clamp comes in contact with
clean, freshly ground, bare metal. If you are working on an
automobile, make sure the ignition is off, and disconnect the
battery. Many auto manufacturers recommend the removal
of on-board computers - if you have any questions, check
with the vehicle manufacturer. Be sure not to connect the
ground clamp to the piece which is being cut off.
6. Place the cutting torch on the edge of the material to be cut.
Depress the trigger on the cutting torch. Pre-air flow will
occur for about 1/2 second. The pilot arc will start
immediately after that and will operate for 2 seconds. If the
pilot arc is not brought in contact with the work piece, it will
go out and post air flow will occur for 30 seconds. Once the
main arc is established, keep the plasma torch in contact with
the workpiece. Adjust the cutting speed based on the
thickness and type of material you are cutting. Hold the
plasma torch perpendicular to the work. Move the plasma
torch at a speed which keeps the plasma arc bent anywhere
from 5 to 15 degrees. (See Fig 5). When you release the
trigger, the arc will stop, but air will continue to flow for
about 30 seconds to cool the plasma torch
The highest cutting efficiency is achieved by keeping the
plasma cutting tip perpendicular and in contact with the work
surface putting very little downforce on the plasma torch. If
you move too fast, sparks will shoot up and you will not cut
all the way through the work. If you are cutting correctly all
the plasma sparks will go beneath the panel you are cutting.
7. When piercing a thicker sheet of steel (1/8" thick to 5/16"),
hold the torch at approximately a 45 degree angle and
gradually roll the torch until it is perpendicular to the work
piece (Fig. 6) If the torch is held perpendicular to the work
to start, there will be no where for the slag to flow, and it will
come straight up and damage the gas diffuser, cutting tip, and
electrode.
8. Familiarize yourself with the consumable parts and their
correct assembly onto the torch head (see page 10).
WARNING: Never disassemble the cutting torch unless the
machine has been disconnected from its power supply.
7
Maintenance and Service
Always disconnect the machine from the main power source
before performing any maintenance or service work.
1. Remove machine housing frequently and blow residual
material from inside of machine.
2. Check nozzle and electrode often for excessive wear due to
cutting. The electrode will develop a pit in the center of it.
When the pit reaches approximately 5/64" deep, the electrode
should be replaced. (Fig. 7)
Likewise, when the hole in the center of the cutting tip
becomes enlarged to approximately 1/16" in diameter, the
cutting efficiency will be reduced and the cutting tip should
be replaced.
3. Clean exposed torch consumables often. This will maintain
their life.
4. Check nozzle and electrode often for proper installation.
5. Frequently check the air supply quality. This is the single
most important factor in the maintenance of the plasma
system.
6. If any damage to the machine or torch is noticed, contact
your local distributor or HTP America, Inc. directly at
1-800-USA-WELD.
IF ANY SERVICE OTHER THAN THE AFOREMENTIONED
IS NECESSARY, IT SHOULD BE PERFORMED BY
AUTHORIZED PERSONNEL ONLY.
(Fig. 7) Electrode Wear
(Fig. 6) Piercing
(Fig. 8)
Cutting Tip Wear
5/64"