2
Burner Maintenance
housing.
3. Remove the blower.
4. Install the blower onto the shaft and place .030 feller gauge on
the motor as shown, sliding blower until it contacts feeler the
gauge. Rotate wheel until set screw is centered on the flat of
the motor shaft. Tighten set screws onto motor shaft.
5. Reinstall motor and blower assembly.
6. Reconnect wires and turn on power.
Transformer Test
1. Remove burner junction box cover.
2. Turn on burner and make sure ignition transformer is receiving
rated voltage.
3. Turn off burner.
4. Loosen screw and swing transformer away from burner gun
assembly.
5. Turn on burner.
6. Short the high voltage terminals.
7. Open gap by drawing screwdriver away from one electrode
while touching the other.
8. The spark should jump between 5/8 inches and ¾ inches, if it
doesn’t jump, replace the transformer.
9. Turn burner off.
10. Partially close transformer. Check if buss bars align and
contact transformer electrodes. If buss bars do not contact,
see Buss Bar Alignment.
11. Close transformer, reposition retainer clip and tighten screw.
Buss Bar Alignment
1. With burner off, loosen screw and swing the transformer away
from burner gun assembly.
2. Inspect the buss bars and transformer electrodes for pitting or
corrosion.
3. Partially close the transformer. Check if the buss bars contact
and are in alignment with transformer electrodes.
4. Proper adjustment is obtained by gently bending the buss
bars until they spring against, parallel, and are in full contact
with the transformer electrodes.
5. With buss bars aligned, carefully close and fasten the
transformer.
Burner Gun Removal & Installation
1. Disconnect the fuel line from the burner gun assembly oil line
fitting. Loosen the other end of the line and swing line out of
the way.
2. Remove the retaining nut.
3. Loosen screw and swing transformer away from burner gun
assembly.
4. Carefully remove the burner gun assembly.
WARNING
Use screwdriver
with a well insulated
handle to avoid
shock.
