Eastey ET1608-30, User Manual

Page: 27 / 55

Maintenance 27
Replacing Tunnel Components
Caution! Disconnect main power source before performing any
procedure to replace any tunnel component(s).
Fuse replacement or electrical component replacement
Major electrical components, except the conveyor motor (whose replacement procedure
is provided on the previous page) and the heater bank and blower motor (whose
replacement procedures are provided separately below), are located behind the fold-
down electrical control panel for easy maintenance. See the Panel Layout in Appendix
A for description and approximate location of electrical components.
Heater bank replacement
Shut off the machine and disconnect main power. Remove the side panel cover. Pull
insulation out. Marking the wire positions so they can be reconnected in the same
positions, remove the wires on the heater bank with a 3/8-inch nut driver, and then set
the wires off to the side. Noting the heater bank position so it can be replaced in the
same position, remove the heater bank. Reassemble components in the same manner
in which they were disassembled.
Important! Ensure that the heater bank frames are pushed completely
in. The end of the frame should be flush with the housing.
Temperature controller replacement
Note: Shut off power to the machine before opening the panel door
on the side of the machine to access internal electronics and
temperature controller.
There are two options for removing the temperature controller.
1. The first and easiest option is to remove and replace only the controller, which
reuses the receptacle sleeve and leaves all wiring intact.
2. The second option is to disconnect all wiring and replace the controller and sleeve
together.
To reuse the housing and replace only the interior components of the controller, use a
flat screwdriver to carefully press down on the tab, inside on top of the controller. (Take
care to not break or deform the tab permanently. See the following illustration.) While
the tab is depressed, pull on the front face of the controller to slide it out of the housing.