Fan
IMPORTANT: Remove fan from motor shaft before removing motor from heater. The weight of the motor resting on the fan could damage the fan pitch.
1.Remove upper shell (see page 10).
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 (see Figure 22).
7.Place setscrew on flat of shaft. Tighten setscrew firmly
8.Replace fan guard and upper shell.
Setscrew | Fan |
Motor
Shaft
Figure 21 - Fan, Motor Shaft, and Setscrew Location
Fan
Flush
Motor Shaft
Setscrew
Figure 22 - Fan Cross Section
17
