Tweco PAK 200i - Manual (Page 41)

PAK 200i
Manual 0-5335 OPERATION 4-3
4.03 Operating Set-up
Follow this set-up procedure each time the system is operated:
WARNING
Disconnect primary power at the source before assembling or disassembling power supply, torch parts, torch and
leads assemblies or adding coolant.
A. Coolant Level Inspection
Check the coolant level in the coolant tank at the front of the unit. If the tank is below 3/4 full, add coolant.
B. Torch Parts Selection
Check the torch for proper assembly. Install proper torch parts for the application per the Torch section of the
manual..
C. Input Power
Check the power source for proper input voltage. Close main disconnect switch or plug unit in to supply pri-
mary power to the system.
D. Work Cable Connection
Check for a solid and clean work cable connection to the workpiece or cutting table. The connection area must
be free from paint and rust.
E. Torch Connection
Check that the torch is properly connected.
F. Gas Supplies
Connect desired plasma and shield gases. Make sure gas sources meet requirements. Check connections and
turn gas supply on. Set Gas Selection Switch on rear panel to the correct plasma gas being used.
G. Plasma Gas Purge
Move the Power Supply ON/OFF switch to the ON position.
An automatic gas purge will remove any condensation that may have accumulated in the torch and leads while
the system was shut down. After the purge is complete, if the RUN/SET switch is in SET position, gases will flow.
H. Amperage Selection
Select the desired current output amperage.
I. Pressure Settings
1. Refer to the cut charts in section 4.08 for pressure details according to the material being cut. Move the RUN/
SET switch to SET position. (Gas will flow through the torch). Set gas pressures and flows as follows:
�. To set the Plasma Gas pressure:
a. Pull out the knob on the Plasma Gas pressure control knob.
c. Turn the knob to adjust gas pressure.
d. Push the knob back in to lock the pressure setting.