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18 Operator’s Manual
MAINTENANCE (CONTINUED):
(Fig. 7)
(Fig. 6)
(Fig. 8)
FAN:
1 Remove motor, motor mount and fan (see "Maintenance:
Motor", steps 1 through 8.).
2. Clean fan using soft cloth moistened with kerosene or
solvent.
3. Dry fan thoroughly.
4. Replace fan on motor shaft. Make sure setscrew is
touching back of flat surface on motor shaft (Fig. 6 and
7).
5. Place setscrew on flat of shaft. Tighten setscrew
firmly (40-50 inch-pounds / 46.08-57.60 kilogram-
centimeters).
6. Place motor, motor mount and fan guard into rear of heater
shell (see "Maintenance: Motor", steps 14 through 18).
SPARK TRANSFORMER:
1. Remove base tray.
2. Locate and disconnect white, black and orange wires
from spark transformer. (Fig. 8)
3. Remove two screws holding spark transformer to base.
Remove sheet metal nuts on transformer and install on
new transformer. Discard spark transformer.
4. Install new spark transformer. Position new spark
transformer in same manner as old transformer.
5. Connect white, black and orange wires to new spark
transformer. Connect wires to correct terminals as noted
in step 2.
6. Replace base tray.
Motor
Shaft
Fan
Setscrew
Fan
Hub
Setscrew
Motor
Shaft
Bushing
Ignitor Wire