instructions for
MPORTANT:
PLEASE READ THESE INSTRUCTIONS CAREFULLY. NOTE THE SAFE OPERATIONAL REQUIREMENTS, WARNINGS & CAUTIONS. USE
THE PRODUCT CORRECTLY AND WITH CARE FOR THE PURPOSE FOR WHICH IT IS INTENDED. FAILURE TO DO SO MAY CAUSE DAMAGE AND/OR
PERSONAL INJURY AND WILL INVALIDATE THE WARRANTY. KEEP THESE INSTRUCTIONS SAFE FOR FUTURE USE.
oxyacetylene welding & cutting set
model no: sga1.V4
thank you for purchasing a sealey product. Manufactured to a high standard, this product will, if used according to these instructions,
and properly maintained, give you years of trouble free performance.
refer to
instructions
Wear opaque
Goggles
Wear gloves
Wear protective
clothing
Wear safety
footwear
1. safety
Always have a fire extinguisher nearby.
never use oxygen or fuel gas to blow soot or dirt from your clothes.
do not wear ragged clothes, as sparks can ignite the ragged or loose ends.
Always wear goggles or a helmet with the appropriate shade lens.
do not use shaded safety spectacles or unshaded face shield visors for cutting or welding. they do not stop the harmful rays which cause
eye damage.
use gauntlet type gloves made from heat resistant material.
secure cylinders to a trolley, wall or post to prevent them from falling.
All cylinders should be used and stored in an upright position.
never drop or strike a cylinder. do not use cylinders that have been dented.
cylinder caps should be used when storing or moving cylinders.
empty cylinders should be kept in specified areas and clearly marked ‘eMPty’.
never use oil or grease on any inlet connections, outlet connections or cylinder valves.
examine hoses for cuts, burns or worn areas before each use. Also inspect fittings for damage. if any damage is found, replace immediately.
do not repair hose with tape.
Always use reverse flow check valves on torch and flashback arrestors on the regulator. this greatly reduces the possibility of mixing gases in
the regulator or hoses. reverse flow check valves are an important safety precaution.
Working pressure on the acetylene regulator should neVeR be set above 15psi (1bar).
Keep all threads and unions clean and free from oil, dirt or grease.
never apply oil or grease to any thread.
these instructions cover the use of the kit on mild steel. if used on any other materials, extra precautions will have to be taken.
make sure that there is a good flow of air to the user and the tip, at all times. use a welding fume extractor if conditions are poor or space is confined.
never leave the gun alight and unattended.
for safety advice regarding gas bottles (oxygen and acetylene) refer to the supplier of the bottles.
make sure bottle keys are in place at all times so that in the event of an emergency the valves can be turned off quickly.
Keep hoses away from flame at all times. make sure that hoses are laid flat where possible and not in a position where they can be run over by
vehicles, which would result in permanent damage.
leaKing Hoses can Kill. leak test all connections and valves prior to each use of the equipment.
if hoses are not long enough, join them together with the manufacturer’s couplings only.
do not join damaged hoses, they must be replaced immediately .
remember at all times Blue = oXYGen ‘o’
Red = AcetYlene ‘A’
At no time may you interchange parts contained in this kit with those of other manufacturers. only sealey replacement items should be used.
Acetylene fittings have a left-handed thread and notches on hose unions to indicate this.
the regulators in this kit have no user-serviceable parts. All repairs/calibrations must only be undertaken by a BcGA approved service agent.
2. intRoduction
A complete set of regulators and torches for oxyacetylene gas welding. single stage gas regulators with two gauges to show bottle pressure
and working pressure. 4.5mtr twin gas hose set with hose check valves (to torch) and EN 730 compliant pressure activated ash arrestors (to
regulators). Welding torch with three lightweight nozzles. cutting torch attachment with three Anms cutting nozzles. spark lighter. supplied in
carry case.
© Jack sealey limited
Original Language Version
sGA1.V4 | issue 1 29/04/16
3. contents
1 torch handle
2 Hose check valves
3 goggles
4 Mixer nozzle
5 cutting attachment
6 cutting nozzles
7 welding nozzles
8 nozzle cleaning tools
9 spark lighter
10 flash arrestors
11 Regulator acetylene
12 Regulator oxygen
13 Hoses
4. asseMBly
waRning! danger of explosion. All parts which come into contact with acetylene or oxygen, including hands and tools, must be free
from oil or grease. if grease or oil is found on a cylinder, discontinue its use immediately and contact your gas supplier.
4.1. PRePaRing tHe cylindeR
4.1.1. make sure that the cylinder to be used is safe and properly secured as noted in the safety precautions.
4.1.2. Whilst standing on one side ‘crack’ each cylinder valve. ‘cracking’ is to quickly open and close the valve allowing gas to escape and clear
the valve of any foreign bodies.
4.2. connecting tHe gas RegulatoRs to tHe cylindeRs.
note: Pressure regulators should be treated as precision instruments and should not be jarred or knocked.
4.2.1. function of the regulators.
fitted to the outlets of the gas cylinder valves, the pressure regulators reduce the pressure of the gas from cylinder pressure to the
constant lower pressure required for the operation of the equipment. the left hand gauge indicates the pressure in the cylinder.
the right hand gauge indicates the pressure of the gas being delivered to the torch. Pressure reduction within the regulator occurs in
two stages.
4.2.2. Attach oxygen and acetylene regulators to the appropriate cylinders. on each gauge ensure the inlet filter is in place and is not blocked
or contaminated. if an ‘0’ ring is fitted to the inlet, check for damage and replace if necessary with an ‘0’ ring recommended by the
regulator manufacturer. do not use any form of jointing paste or tape between regulators and cylinder valves.
4.2.3. Before attaching the gauges wipe the fittings with a clean dry cloth. screw the union at the base of each regulator to the appropriate
cylinder by hand. ensure that the gauge is correctly orientated so as to be seen properly by the operator in use.
4.2.4. to tighten, turn clocKwise for oxygen, and anti-clocKwise for acetylene. A wrench should be used to ensure tight
connections.
4.2.5. close the regulators by turning the adjusting screws anti-clockwise to relieve the pressure on the diaphragm before opening the cylinder
valve. if this is not done, pressure from the cylinder can damage the diaphragm and render the regulator inoperative.
4.2.6. the cylinder valve-to-regulator connection should be checked for leaks using an approved leak detection spray or soap and water
solution.
© Jack sealey limited
Original Language Version
sGA1.V4 | issue 1 29/04/16
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