HTP MicroCut 875S, Руководство пользователя

Страница: 10 / 20

10
Operation
1. Be sure your Micro Cut 875S is connected to a clean, dry
source of compressed air with a line pressure of at least 80
but not more than 140 psi.
2. Connect your Micro Cut 875S to a 230 volt power supply.
(see electrical connection). Turn the On-Off switch on. The
green 230 V light and the green air pressure light will turn on.
The fan will begin to run. The red trouble light will be on.
Press the reset switch to turn the trouble light off.
3. Refer to the safety suggestions to be sure the operator has
the correct eye protection, gloves, clothing, and that all of the
safety precautions have been followed.
4. Place the cutting torch on the edge of the material to be
cut. Depress the trigger on the cutting torch. Pre-air flowwill
occur for about 1/2 second. The pilot arc will start
immediately after that. Once themain arc is established,
KEEPTHE PLASMA TORCH IN CONTACT WITH THE
WORKPIECE if you are using the drag cutting tip. 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 4).
When you release the trigger, the arc will stop, but air will
continue to flow for about 30 seconds to cool the plasma
torch. When using the drag cutting tip, 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.
Fig. 4
5. When piercing a thicker sheet of steel (1/4” and greater)
hold the torch at approximately a 45 degree angle and
gradually roll the torch until it is perpendicular to the work
piece (See Fig. 5) 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.
Fig. 5
WARNING: Never disassemble the cutting torch unless the
machine has been disconnected from its power supply.
Maintenance and Service
Always disconnect the machine from the main power source
before performing any maintenance or service work.
Consumable Parts:
1. 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 1/16" deep, the electrode should
be replaced. (See Fig. 6)
Fig. 6
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. (See Fig. 7)