Dayton Operating Instructions and Parts Manual | 4E769B |
Dayton® Propane
Construction Heater
Maintenance (Continued)
SERVICE PROCEDURES
Never attempt to service heater
while it is connected to propane supply, operating, or hot. Severe burns and electrical shock can occur.
ELECTRICAL SYSTEM
The entire electrical system for this heater is contained within the motor. If any part of the electrical system is damaged, you must replace motor.
MOTOR REPLACEMENT
1.Remove three screws that attach fan guard to heater shell.
2.Remove motor and fan guard from heater shell (See Figure 7).
Figure 7 - Removing Motor and Fan Guard from Heater
3.Use pliers to remove the fan nut from front of motor shaft (See Figure 8).
Fan Nut
Figure 8 - Removing Fan Nut from Motor Shaft
4.Remove fan. Be careful not to damage the fan blade pitch.
5.Remove three nuts that attach fan guard to motor using
Figure 9 - Removing or Attaching Fan Guard from Motor
6.Discard old motor.
7.Attach fan guard to new motor using three nuts. When attaching fan guard to motor, you must position power cord as shown in Figure 9. Tighten nuts firmly.
8.Place fan onto motor shaft of new motor.
IMPORTANT: When placing fan onto motor shaft, make sure part number stamped on fan is facing motor. Attach fan nut to end of motor shaft. Tighten fan nut firmly.
9.Place motor and fan guard into rear of heater shell. Make sure power cord is properly located (See Figure 10).
10.Insert three screws through heater shell and into fan guard. Tighten screws firmly.
Figure 10 - Replacing Motor and Fan Guard into Heater
FAN
1.Remove three screws that attach fan guard to heater shell.
2.Remove motor and fan guard from heater shell (See Figure 11).
Figure 11 - Removing Motor and Fan Guard from Heater
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