Form 465, Page 30
Maintenance
Procedures
Continued
Electrode Adjustment
Check the placement of the electrodes according to the illustration below. If adjustments are required,
loosen the 1/4” screw. Make adjustments in the order listed below. Recheck, and if necessary, re-adjust
until electrodes are in proper position.
Sizes 140 and 235
1) From center of nozzle orifice to electrode
-
up 3/8”
2) Electrode Gap (distance between elec-
trodes -
3/32”
3) Relationship of the end of the electrodes
to the tip of the nozzle -
1/16” ahead
4) Relationship of the tip of the nozzle to the
inside radius of the end cone --
Flush to
1/16” ahead
-
NEVER BEHIND
Servicing/Replacing Spark Electrodes
To service or replace the Spark Electrodes
Remove any carbon formation on the spark electrodes.
•
Check the electrodes for deterioration and the insulators for
cracks or damage.
•
Replace the electrode assemblies if any damage or deterioration
exists.
•
After service or replacement, check the position of the elec-
trodes.
•
Adjust the electrode location precisely.
Removing Fuel
Line Assembly
to Service
Continued
Sizes 350 and 500
1) From center of nozzle orifice to electrode
-
up 5/16”
2) Electrode Gap (distance between elec-
trodes -
1/8”
3) Relationship of the end of the electrodes
to the tip of the nozzle -
1/8” ahead
4) Relationship of the tip of the nozzle to the
inside radius of the end cone --
Flush to
1/16” ahead
-
NEVER BEHIND