Eastey ET1608-30, User Manual

Page: 28 / 55

28 Maintenance
For the second option (to replace entire controller and receptacle), first take note of wire
locations (make a sketch and label the wires with tape, if necessary), and then
disconnect wires from the temperature controller and thermocouple. Slide the controller
and receptacle out of the front of the panel. Replace with a new controller and
reconnect wires to the temperature controller and thermocouple. (Refer to notes made
during disassembly or the electrical schematic if necessary.)
Warning: If there is no control over heat, interchange the thermocouple wires.
Caution: Do not exceed 500 degrees.
Blower motor replacement
Shut off power to the machine. Remove the top lid on the hood of the tunnel.
Disconnect the wires on the blower motor(s). (Note: there may be more than one blower
motor.) Remove four (4) 5/16-18 bolts on the motor mount(s). Once the blower housing
is out and on the bench, loosen the two (2) set screws holding the blower wheel in
place. The blower wheel shaft set screws are installed with thread-locking compound
and may require a torch to remove the blower wheel
— if force is necessary, apply it
between the motor and blower wheel hub. Remove the motor mount bolts and remove
and replace the motor. Rotation on the blower motor needs to be counter-clockwise as
viewed from the electrical inlet and hub side. Reassemble the new motor and blower
wheel housing and reassemble components in the same manner in which they were
disassembled.
PV
SV