Desa RC40 Service Procedures, Upper Shell Removal, Fan, AIR OUTPUT, AIR Intake and Lint, Filters

SERVICE PROCEDURES

WARNING: To avoid risk of burn and electrical shock, never attempt to service heater while it is plugged in, operating or hot.

UPPER SHELL REMOVAL

1.Remove screws along each side of heater using 5/16" nut-driver. These screws attach upper and lower shells together. See Figure 11 or 12.

2.Lift upper shell off.

3.Remove fan guard.

Screw Upper Shell

Fan Guard

Figure 11 - Upper Shell Removal,

40/55/70 Models Only

Screw

Upper Shell

Fan Guard

Figure 12 - Upper Shell Removal,

115/165 Models Only

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 (see Figure 13).

1.Remove upper shell (see Figure 11 or 12).

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 14).

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.

Setscrew Fan

	Motor Shaft
Figure 13 - Fan, Motor Shaft, and
	Setscrew Location
Motor	Setscrew	Fan
		Flush
	Motor
	Shaft
Figure 14 - Fan Cross Section
AIR OUTPUT, AIR INTAKE AND LINT
FILTERS

1.Remove upper shell (see Figure 11 or 12).

2.Remove filter end cover screws using 5/16" nut- driver (see Figure 15 or Figure 16, page 11).

3.Remove filter end cover.

4.Replace air output and lint filters.

5.Wash or replace air intake filter (see Preventa- tive Maintenance Schedule, page 8).

	Air Intake Filter
	Filter End
	Cover
Lint Filter	Air Output Filter
Figure 15 - Air Output, Air Intake, and
Lint Filters, 40/55/70 Models Only

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