Thermo Scientific TRACE 1600 Hardware Manual page 260

5
GC Main Frame Advanced Maintenance
Replacing the Oven Heater Baffle
228 TRACE 1600/1610 Hardware Manual
Figure 204. Pipes
a. Unplug the heater and temperature sensor wires from the relevant connector on the
backplane board.
b. Loosen and remove the four Torx screws that secure the tabs to the oven heater baffle.
See Figure 203.
8. Pull out the oven heater baffle from the oven, paying attention to guide the heater and
temperature sensor wires through the three pipes on the back oven wall.
IMPORTANT During this operation, parts of the insulation material drops down into the
oven. This material is reused later when a new Oven Heater Baffle is installed.
9. Replace the oven heater baffle in the reverse order in which it was removed.
a. Guide the heater and temperature sensor wires through the pipes provided on the
oven back wall.
b. Reconnect the temperature sensor and heater wires to the relevant connector J4, J23,
J24, and J25 on the backplane board.
c. Plug the pipes with the insulation material.
d. Secure the oven heater baffle to the oven wall with the four Torx screws in the tabs.
The tab adjustment screws should be loose. Carefully center the oven heater baffle
inside of the oven. Be sure that the center hole in the oven heater baffle screen is
centered over the blower motor shaft. The tolerance is very small.
The oven heater baffle will not move left or right, nor up or down more than a couple
of millimeters. However, be sure that it is centered in the oven over the blower wheel.
This will ensure that whenever the GC is turned on, the blower wheel will not be
touching the heater element mounted to the oven heater baffle.
Backplane Board
Pipes
Oven Motor
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