Technical Reference
Manual-XPM3m Revision Date: August 2014
BOTTOM HEATER REMOVAL
1
If the Oven is belt-only, disconnect the belt at the master link and unthread the belt from the tunnel. See the
procedure for disconnecting the conveyor belt.
2
If the Oven is rail-only, disconnect the conveyor chains at the master links and unthread them from the
tunnel. See the procedure for disconnecting rails and chains.
3
If the Oven has a combination rail/belt conveyor, disconnect and unthread the chains first and then the belt
from the tunnel. See the procedures for disconnecting rails and chains and disconnecting the conveyor belt.
4
Remove the screw(s) holding the thermocouple(s) in place on the cell face. Using a permanent black
marker, circle the hole that the thermocouple(s) pass through on the heater face. If the oven has the
Redundant Over Temperature Option (ROSCO) there will be two thermocouple probes. Be sure to identify
each thermocouple probe and the corresponding mounting hole. Carefully straighten the thermocouple wire
and cover it with a piece of 1.7mm vinyl tubing. This will aid in relocating the thermocouple when
reassembling the cell later.
5
Remove the support angle brackets on the left and right side of the heater panel.
6
Remove the Philips head screw holding the rear heater panel bracket. Remove the Philips head screw
holding the front heater panel bracket. Remove the brackets.
7
Using a hex head wrench, carefully insert the short end into a hole in the heater panel and gently pull up on
the heater panel. Use the 3" putty knife to push the insulation guard clear of the heater panel.
8
Tip the heater panel on its side far enough to expose the heater wires on the inside of the cell. Block the
panel in place to remove the heater wires.
9
SKETCH the wire placement on the connections on the inside of the heater panel. They will be replaced in
the same order.
10
Remove the four wires by using a 2.5 hex key and a 7mm open wrenche.
IF THE HEATER FOIL TEARS, IT CANNOT BE REPAIRED AND THE HEATER PANEL ASSEMBLY
MUST BE REPLACED.
Содержание XPM3m
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Страница 94: ...Technical Reference Manual XPM3m Revision Date August 2014 ENHANCED COOLING PACKAGE EC 3 FLOW DIAGRAM ...