Desa BV125EDI owner manual Service Procedures, Upper Shell Removal, Fan

SERVICE PROCEDURES

Upper Shell Removal

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

2.Lift upper shell off.

3.Remove fan guard.

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 above).

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 fl ush with end of motor shaft (see Figure 8).

7.Place setscrew on fl at of shaft. Tighten setscrew

fi rmly (40-50 inch-pounds/ 4.5-5.6 n-m).

8.Replace fan guard and upper shell.

10

!WARNING

Never service heater while it is plugged in, operating, or hot. Severe burns and electrical shock can occur.

Upper

Shell

Fan Guard

125 SHELLFigureREMOVAL6 - Upper Shell RemovalPFA/P 050

Setscrew Fan

Motor

Shaft

Figure 7 - Fan, Motor Shaft, and Setscrew Location

Fan

Flush

Motor

Shaft

Setscrew

Figure 8 - Fan Cross Section