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Inspection and Maintenance
8-10
750-368
CBEX Elite 100-1200 HP
If at any time the burner flame appears “stringy” or “lazy,” it is possible that the nozzle tip or swirler has become
partially clogged or worn. Any blockage within the tip will cause the air pressure gauge to increase above its nor-
mal value.
FIGURE 8-7.
Standard and High Turndown Oil Nozzle Components
Disassemble with the power off by unlatching and withdrawing the burner gun. Insert the nozzle body into the
hanger vice and use the spanner wrench to remove the tip. Remove the swirler and seating spring being careful
not to drop or damage any parts.
Perform any necessary cleaning with a suitable solvent. Use a soft fiber brush or pointed piece of soft wood for
cleaning. Do not use wire or a sharp metallic object, which could scratch or deform the orifices as well as the
precision ground surfaces of the swirler and tip. Inspect for scratches or signs of wear or erosion, which may
make the nozzle unfit for further use. Take the necessary precautions in working with solvents.
The tip and swirler are a matched set, which are precision lapped at the time of assembly. The close fit of the
lapped surfaces must be maintained in order to provide optimum performance. Additional lapping may be
required to provide better atomization for more efficient combustion. Do not interchange parts if a spare is kept.
In reassembling, be certain that the seating spring is in place and that it is holding the swirler tightly against the
tip. The swirler is stationary and does not rotate, but rather imparts a swirling motion to the oil.
See that the plugged hole is at the bottom of the nozzle body when the gun is installed.
8.7.3 — Cleaning the Back Pressure Orifice Nozzle
Clean the strainer screen carefully to remove any foreign matter. Use suitable solvents in cleaning. Hot water at
high velocity is also helpful in cleaning. Replace strainer by screwing it into the nozzle body only finger tight. Do
not use an orifice of a size other than originally installed.
FIGURE 8-8.
Back Pressure Orifice
Содержание CBEX Elite
Страница 1: ...Manual Part No 750 368 11 2013 CBEX Elite Packaged Boiler 100 1200 HP Operation and Maintenance...
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Страница 14: ...Basics 1 8 750 368 CBEX Elite 100 1200 HP...
Страница 68: ...Adjustment Procedures 6 14 750 368 CBEX Elite 100 1200 HP...
Страница 72: ...Troubleshooting 7 4 750 368 CBEX Elite 100 1200 HP...
Страница 131: ...750 368 CBEX Elite 100 1200 HP 9 29 Fireside Gaskets 9 18 Fireside Gaskets...
Страница 132: ...Parts 9 30 750 368 CBEX Elite 100 1200 HP Fireside Gaskets cont d...
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Страница 134: ...e mail info cleaverbrooks com Web Address http www cleaverbrooks com...