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111710-01B 9
FAN
1 Remove motor, motor mount and fan (see
Motor, steps 1 through 8, page 8).
2. Clean fan using soft cloth moistened with
kerosene or solvent.
3. Dry fan thoroughly.
4. Replace fan on motor shaft. Make sure set
-
screw is touching back of flat surface on motor
shaft (see Figure 8).
5. Place setscrew on flat of shaft. Tighten set
-
screw 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
Motor, steps 14
through 18, page 8).
SERVICE PROCEDURES
Continued
Motor Shaft
Fan
Setscrew
Figure 8 - Fan, Motor Shaft and Setscrew
Location
Figure 9 - Fan Cross Section
Fan
Hub
Setscrew
Motor
Shaft
Figure 10 - Removing Ignitor Wire from
Spark Transformer
SPARK TRANSFORMER
1. Remove base tray.
2. Locate and disconnect white, black and orange
wires from spark transformer.
3. Remove two screws holding spark trans
-
former 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.
Bushing
Ignitor Wire