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Operator’s Manual 19
WARNING: TO AVOID RISK OF BURN AND
ELECTRICAL SHOCK, NEVER ATTEMPT
TO SERVICE SPACE HEATER WHILE IT IS
PLUGGED IN, OPERATING, OR HOT.
UPPER SHELL REMOVAL:
1. Remove screws along each side of space heater using
5/16" nut-driver. These screws attach upper and lower
shells together. (Fig. 4 or 5)
2. Lift upper shell off.
3. Remove fan guard.
FAN:
IMPORTANT: Remove fan from motor shaft before
removing motor from space heater. The weight of the
motor resting on the fan could damage the fan pitch.
(Fig. 6)
1. Remove upper shell. (Fig. 4 or 5)
2. Use 1/8" allen wrench to loosen setscrew which holds
fan to motor shaft.
3. Slip fan off motor shaft.
4. Clean fan using a soft cloth moistened with kerosene
or solvent.
5. Dry fan thoroughly.
6. Replace fan on motor shaft. Place fan hub flush with
end of motor shaft. (Fig. 7)
7. Place setscrew on flat of shaft. Tighten setscrew firmly
(40-50 inch-pounds / 4.5-5.6 n-m).
8. Replace fan guard and upper shell.
MAINTENANCE (CONTINUED):
(Fig. 4)
(Fig. 5)
Upper Shell
Fan Guard
Screw
Model: AC-70
Fan
Guard
Upper Shell
Screw
Models: AC-115 / 165
Motor Shaft
Setscrew
Fan
Motor
Shaft
Fan
Setscrew
Flush
Motor
(Fig. 6)
(Fig. 7)