INSTRUCTIONS for
F-4644-M
October, 2000
W-17 Welding Torch
P/N 4250
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 welding torch covered by these instructions is listed by Underwriters Laboratories only when used in combina-
tion with welding tips and parts manufactured by ESAB Welding & Cutting Products to the specifications on file with
Underwriters Laboratories, Inc., and when they are used in the gas services for which they are designed and listed.
The use of other parts that cause damage or failure to the equipment will void the manufacturers warranty.
SPECIFICATIONS
Welding Range ........................ This gauge to over 1-in.
Heating Range .......................... 1 to 250 cfh acetylene*
Length ............................................................... 7-1/2-in.
Weight ..................................................................... 1 lb.
Torch-Hose Connections ................ Oxy - 9/16 - 18 fem.
F.G. - 9/16 - 18 LH fem.
* Equivalent to approximately 1400 to 370,000 Btu/hr.
Acetylene and other fuel gases may be used.
OPERATING INSTRUCTIONS
CONNECTING
1. Attach regulators to the oxygen and acetylene cyl-
inders. Follow all instructions supplied with your
regulators.
2. Attach oxygen and acetylene hoses to the regula-
tors and to the torch handle, after making sure all
metal seating surfaces are clean. Tighten all con-
nection nuts with a wrench.
3. Attach welding or heating head to the torch handle.
Tighten the connection nut with a wrench, but use
only slight force, since the threads have a low pitch
and excessive force may distort them.
4. Check throttle valve packing nuts for tightness.
Flashbacks can cause serious burns.
Be sure gas flow is sufficient for head or nozzle size.
Adjust regulators for proper psig pressures.
Adjust throttle valves properly.
Keep torch in good repair.
DO NOT throttle back gases to use large head or nozzle
on thin material.
LIGHTING AND FLAME ADJUSTMENT
1. Open the torch oxygen valve one-quarter of a turn.
2. Open the torch fuel gas valve one-half turn (two full
turns if low-pressure acetylene is being used) and
light the gas at the tip with a friction lighter. DO NOT
USE A MATCH. Use of a match can seriously burn
your hand.
3. Open the oxygen valve wide and adjust the fuel gas
valve to secure the desired flame. If a softer flame
is desired, reduce the oxygen flow by throttling the
oxygen valve and then readjust the fuel gas valve.
NOTE: When operating with a very soft flame, the
welding head will tend to heat up and transfer
some of this heat to the torch handle. This may
create some discomfort to the operator.
Be sure this information reaches the operator.
You can get extra copies through your supplier.
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