INSTRUCTIONS for
F-15-365-C
July, 2000
Be sure this information reaches the operator.
You can get extra copies through your supplier.
DO NOT use torch with any fuel gas except natural
gas or propane. Using other fuel gases can over-
heat and damage the torch which can cause per-
sonal injury.
The PM-GST Cutting Torch is a post mixed design per-
mitting the oxygen and fuel gas to be mixed externally
near the exit end of the torch. No internal mixing of the
combustibles occurs in the torch. Highly efficient mixing
occurs due to the distribution of preheat gases and
shielding gases around the cutting oxygen stream. This
produces an extraordinarily long high-heat zone permit-
ting high standoff of torch to workpiece, thus increasing
the life of the torch and nozzle.
The PM-GST was designed for manual cutting opera-
tions that require torch to be in the stand-by pilot flame
mode ready for immediate use, such as emergency hot
cast billet cutting. The PM-GST (Post-Mix-Gas Saving
Torch) provides substantial gas savings in pilot mode
but remains ready for cutting without the operator hav-
ing to light the torch.
The PM-GST Cutting Torch can be used on hot or cold
material and because of intense preheat capability pro-
vides extremely fast starts and cutting speeds.
DO NOT position the torch with the pilot flame ig-
nited close to any combustible materials. When pi-
lot flame is ignited torch must be held firmly by the
operator or in a stand-by holding fixture.
OPERATING INSTRUCTIONS
EQUIPMENT REQUIRED (See Fig. 1)
1. Hoses -
To obtain the best performance from the
PM-GST Torch, use 1/2 -in. (12.7 mm) I.D. hose for
oxygen and 3/8-in. (9.5 mm) I.D. hose for fuel gas.
Attach 1/2-in. oxygen hose, such as P/N 2120399
(50-ft.) with proper size fittings (7/8"-14 right hand
threads) to the oxygen supply regulator. Attach
3/8-in. fuel gas hose (9/16-18 left hand threads) to
fuel gas supply regulator. Heat protection of hoses
is recommended when working over hot cutting ar-
eas.
(Note: 3/8-in. I.D. oxygen hose may be used
but torch performance will be reduced. To use 3/8-
in. I. D. oxygen hose order P/N 18X19, “C” to “B”
adaptor.)
2. Regulation -
High-Flow Two Outlet Regulation
Panel, P/N 2119101. Panel is complete with R-52
Oxygen regulator, oxygen filter, R-6702 Fuel Gas
Regulator, and H-16 Fuel Gas Safety Valve. It is
OSHA approved, preassembled, and ready for per-
manent or portable wall or column mounting.
3. Cutting Nozzles -
Select desired nozzle from Cut-
ting Data table.
OPTIONAL ACCESSORIES
1. Riding Skid, P/N 22073.
CONNECTING
1. Before connecting, make sure all metal seating sur-
faces of hoses, torch, and regulators are not dam-
aged and cleaned free of grease and oil.
2. Connect hoses (1 oxygen; 1 fuel gas) to the proper
fitting on the torch and to the manual valves down-
PM-GST
POST-MIX HAND CUTTING TORCH
(See Fig. 2 for listing of available torch assemblies.)
These INSTRUCTIONS are for experienced operators. If you are not fully familiar with the principles of operation and safe practices for oxy-fuel
gas equipment, we urge you to read our booklet “Precautions and Safe Practices for Gas Welding, Cutting and Heating,” Form 2035. Do NOT
permit untrained persons to install, operate, or maintain this equipment. DO NOT attempt to install or operate this equipment until you have read
and fully understand these instructions. If you do not fully understand these instructions, contact your supplier for further information.
The cutting torches covered by these instructions are listed by Underwriter’s Laboratories only when using parts manufactured by ESAB Welding
& Cutting Products to the specifications on file with Underwriter’s Laboratories, Inc., and when they are used in the gas service for which they are
designed and listed. The use of other parts voids the manufacturer’s warranty.
Summary of Contents for PM-GST
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