Tweco A40 CutMaster - Manual (Page 28)

CUTMASTER A40
3-4 INSTALLATION Manual 0-4978
3.06 GAS CONNECTIONS
Connecting Gas Supply to Unit
The connection is the same for compressed air or high pressure
cylinders. Refer to the following subsections if an optional air
line filter is to be installed.
1. Connect the air line to the inlet port. The illustration
shows typical fittings as an example.
NOTE
For a secure seal, apply thread sealant to the fitting
threads, according to manufacturer's instructions.
Do not use Teflon tape as a thread sealer, as small
particles of the tape may break off and block the
small air passages in the torch.
Art # A-08320
Inlet Port
Filter Assembly
Hose Clamp
Gas Supply
Hose
1/4 NPT or ISO-R
to 1/4” (6mm) Fitting
Air Connection to Inlet Port
Installing Optional Single - Stage Air Filter
An optional filter kit is recommended for improved filtering with
compressed air, to keep moisture and debris out of the torch.
1. Attach the Single - Stage Filter Hose to the Inlet Port.
2. Attach the Filter Assembly to the filter hose.
3. Connect the air line to the Filter. The illustration shows
typical fittings as an example.
NOTE
For a secure seal, apply thread sealant to the fitting
threads, according to the manufacturer's instruc-
tions. Do Not use Teflon tape as a thread sealer,
as small particles of the tape may break off and
block the small air passages in the torch. Connect
as follows:
Art # A-08319
Hose Clamp
1/4 NPT to 1/4"
(6mm) Fitting
Inlet Port
Gas Supply
Hose
Filter Assembly
Optional Single - Stage Filter Installation
Using High Pressure Air Cylinders
When using high pressure air cylinders as the air supply:
1. Refer to the manufacturer’s specifications for instal-
lation and maintenance procedures for high pressure
regulators.
2. Examine the cylinder valves to be sure they are clean
and free of oil, grease or any foreign material. Briefly
open each cylinder valve to blow out any dust which
may be present.
3. The cylinder must be equipped with an adjustable high
- pressure regulator capable of outlet pressures up to
100 psi (6.9 bar) maximum and flows of at least 300
scfh (141.5 lpm).
4. Connect supply hose to the cylinder.
NOTE
Pressure should be set at 100 psi (6.9 bar) at the
high pressure cylinder regulator.
Supply hose must be at least 1/4 inch (6 mm) I.D.
For a secure seal, apply thread sealant to the fitting
threads, according to manufacturer's instructions.
Do Not use Teflon tape as a thread sealer, as small
particles of the tape may break off and block the
small air passages in the torch.