Figure 4-54.Steam-atomizing burner.
Before attempting to start or to service oi I burners,
see that you have the proper maintenance equipment
available. One item of equipment needed is a pressure
gauge set. This should consist of a 150 psi pressure
gauge, fittings to connect it, and a petcock for
removing the air from the oil line when starting the
burner. You will need a full set of Allen setscrew
wrenches for bypass plugs and for adjusting the nozzle
holder and electrodes. Make sure you have a socket
wrench of proper size for removing or replacing the
Figure 4-55.Mechanical-atomizing burner.
nozzle, an open-end wrench as required for the nozzle
holders, and a small thermostat wrench. This wrench
comes packed with the thermostat and is used for
adjusting the differential. A small screwdriver is
required for adjusting pressure at the regulator and
installing and servicing the thermostat. Another
important item is pipe dope, and if available, use the
oil-line type only. If in doubt, order a can of special
oil-pipe dope for use on all pipe threads requiring dope.
A nozzle assortment should also be kept on hand. It is
cheaper to make a change, time considered, than to
clean the nozzle on the job. When a few nozzles have
accumulated, clean them in the shop.
When installing a nozzle, use a socket wrench for
turning the nozzle. Be sure the nozzle seat is clean.
Screw it on until it reaches the bottom, then back it off
and retighten it several times to make sure of a tight oil
seal. Do not overtighten the nozzle or the brass threads
will become deformed, making it difficult to remove