Firepower MST 180i Operating Manual page 33

!
DO NOT use a regulator that delivers pressure
exceeding the pressure rating of the downstream
equipment unless pro visions are made to prevent
over-pressurization (i.e. system relief valve).
Make sure the pressure rating of the down stream
equipment is compatible with the maximum
delivery pressure of the regulator.
5. Be sure that the regulator has the correct pressure
rating and gas service for the cylinder used.
6. Carefully inspect the regulator for damaged threads,
dirt, dust, grease, oil, or other flammable substances.
Remove dust and dirt with a clean cloth. Be sure the
inlet swivel filter is clean and in place. Attach the
regulator (Figure 3-2) to the cylinder valve. Tighten
securely with a wrench.
!
DO NOT attach or use the regulator if oil, grease,
flamma ble substances or damage is present!
Have a qualified repair technician clean the
regulator or repair any damage.
Figure 3-2: Regulator to Cylinder Valve
7. Before opening the cylinder valve, turn the regulator
adjusting screw counterclockwise until there is no
pressure on the adjusting spring and the screw turns
freely.
8. Relief Valve (where provided): The relief valve is
designed to protect the low pressure side of the
regulator from high pres sures. Relief valves are not
intended to protect down stream equipment from high
pressures.
!
DO NOT tamper with the relief valve or remove it
from the regulator.
Manual 0-5339
WARNING
WARNING
Art # A-12436
WARNING
Stand to the side of the cylinder opposite the
regulator when opening the cylinder valve. Keep
the cylinder valve between you and the regulator.
For your safety, NEVER STAND IN FRONT OF OR
BEHIND A REGULATOR WHEN OPENING THE
CYLINDER VALVE!
9. Slowly and carefully open the cylinder valve (Figure
3-3) until the maximum pressure shows on the high
pressure gauge.
Figure 3-3: Open Cylinder Valve
10. On all cylinders, except acetylene, open the valve
completely to seal the valve packing. On gaugeless
regulators, the indicator will register the cylinder
contents open.
11. On acetylene cylinders, open the valve 3/4 of a turn
and no more than 1-1/2.
Acetylene delivery pressure must not exceed 15
PSIG (103 kPa) or 30 PSIG (207 kPa). Acetylene
can dissociate (decompose with explosive
violence) above these pressure limits.
Keep the cylinder valve wrench, if one is required,
on the cylinder valve to turn OFF the cylinder
quickly, if necessary.
12. Attach the desired downstream equipment.
3-5
Firepower MST 180i
!
WARNING
Art # A-09828
!
WARNING
CAUTION
INSTALLATION, OPERATION AND SETUP