Tweco Merlin 6000 Master PS User Manual
Page 26
INSTALLATION PROCEDURES
3-8
Manual 0-2568
A-01337
Hose Assembly
Filter to Plasma
Gas Input
1/4 NPT
Elbow
Filter
Assembly
Air Filter
Mounting Bracket
Plasma Gas
Input Fitting
Figure 3-8 Two Stage Air Line Filter Installation
6. Using the Filter to Plasma Gas Hose Assembly con-
nect the output port (OUT) of the Air Line Filter As-
sembly to the Plasma Gas Input Fitting.
7. Place thread sealer on the threads of the Street Elbow
on a Y-Hose Assembly (see NOTES).
NOTES
Do Not use teflon tape as a thread sealer as small
particles of the tape may break off and cause the
small gas passage to be blocked in the torch.
The Y-Hose Assembly is customer supplied and is
shown to illustrate one method of connecting the
customer's air supply.
8. Connect the air supply hose from a Y-Hose Assembly
to the street elbow on the Air Line Filter input port
(IN). The Y-Hose Assembly should have already been
installed, if shop air was being used as the plasma
and secondary gases.
A-01338
Shop Air
Gas Input
Air Filter
Assembly
Secondary Air
Gas Fitting
Y-Hose
Assembly
From Supply
Figure 3-9 Supply Hose Connections Witout Gas
Control Option
9. Apply thread sealer (see NOTE) to the other elbow of
the Y-Hose Assembly.
NOTE
Do Not use teflon tape as a thread sealer as small
particles of the tape may break off and cause the
small gas passage to be blocked in the torch.
10. Connect the elbow fitting to the SECONDARY (Air)
1/4 NPT fitting.
11. Connect the supply line from the air supply source to
the Y-hose assembly. The supply hose must be 3/8 in
(10 mm) minimum inside diameter to provide ad-
equate air flow.
B. Using High-Pressure Gas Cylinders
NOTES
Refer to the regulator manufacturer’s specifications
for installation and maintenance procedures. Re-
fer to Section 6.05, System Options and Accesso-
ries, or a listing of available high-pressure regula-
tors.
Do not use an air line filter with high pressure gas
cylinders.
Examine the cylinder valves to be sure they are clean and
free of oil, grease or any foreign material. Momentarily
open each cylinder valve to blow out any dust which may
be present.