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 (see Figure 6).
1. Remove upper shell (see Figure 5, page 9).
2. The fan is located with the set screw in
contact with the back of flat on motor as
shown in Figure 7.
3. Use 1/8" Allen wrench to loosen setscrew
which holds fan to motor shaft (see Fig-
ure 6).
4. Slip fan off motor shaft.
5. Clean fan using a soft cloth moistened
with kerosene or solvent.
6. Dry fan thoroughly.
7. P l a c e s e t s c r e w o n f l a t o f s h a f t .
Tighten setscrew firmly (40-50 inch-
pounds/4.5-5.6 n-m).
8. Replace fan guard and upper shell.
Setscrew
Motor
Shaft
Figure 6 - Fan, Motor Shaft, and
Setscrew Location
Fan
Setscrew
Motor
Touching
Shaft
Back of Flat
on Motor
Shaft
Motor
Figure 7 - Fan Cross Section
10
SERVICE PROCEDURES
FAN
Fan
Motor
Shaft
Length
Back of Flat on
Motor Shaft
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AIR OUTPUT, AIR INTAKE AND
1. Remove upper shell (see Figure 5, page 9).
2. Remove filter end cover screws using
5/16" nut-driver (see Figure 8).
3. Remove filter end cover.
4. Replace air output and lint filters.
5. Wash or replace air intake filter.
6. Replace filter end cover.
7. Replace fan guard and upper shell.
IMPORTANT: Do not oil filters.
Lint Filter
Figure 8 - Air Output, Air Intake, and Lint
1.82"
LINT FILTERS
Air Intake
Filter
Air Output
Filter
Filters
Filter
End
Cover
160930-01A