Section D. BURNER DRAWER ASSEMBLY, NOZZLE,
AND ELECTRODES
56. General
The drawer assembly is the internals of the burner which combines the ignition spark with the proper fuel/air ratio for
combustion. One nozzle and two electrodes combined with fuel lines, ignition cables, and one air spinner make up the
drawer assembly. These are combined so they may be removed as one assembly.
a.
Assembly and Disassembly.
1.
With burner shut down, remove the drawer assembly by loosening long nuts on fuel line to drawer
assembly. (Ret Fig. 42, Item 17).
2.
Remove two screws from burner housing back plate, ref. Fig. 44, Item 34. Remove burner housing
back plate.
3.
Remove capscrew from oil gun mounting plate (Fig. 42, Item 2) and pull assembly from burner housing
after unhooking ignition cables from ignition transformer.
4.
Ref. Fig. 42 and disassemble the nozzle and electrodes
b.
Cleaning, Inspection and Repair.
1.
Clean all parts in an approved cleaning solvent and dry thoroughly.
2.
Remove any carbon deposits from the electrodes and nozzle.
Nozzle apertures and air and fuel
passages should be clear of obstruction.
3.
Inspect all parts for cracks, breaks, and other damage
4.
Inspect the ceramic portions of the electrodes for cracks, breaks, and loose mounting .
5.
Inspect the hardware for cracks, breaks, and damaged threads.
6.
Replace any defective parts as may be necessary.
c.
Reassembly and Installation.
1.
Refer to Fig. 42 and reassemble the nozzles and electrodes.
2.
Adjust the burner electrodes (Para 58), Fig. 42.
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