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Technical Information
4
Screw on the remaining nut(s) finger-tight, then tighten all nuts evenly to 250
inches-pounds of torque.
5
Check the heater alignment with the crush plate. The heater must be located
inside the crush plate tabs on all three sides.
6
Label the heater leads according to the schematic diagram.
7
Run the wires around the periphery of the pump, under the wire retaining clips,
into the conduit, and up into the junction box.
8
Connect the leads to the terminal strip then replace the elbow cover plate.
9
Replace the heater insulation (not shown in Figure 30) between the high
temperature nickel wires and the clamping plate.
10 Replace the heater cover.
Heater wiring and terminal lugs must not use copper or copper-plated wire
CAUTION
which could oxidize rapidly and fail due to the high temperatures near the
heaters.
Use #10 strand nickel wire with high temperature insulation.
High Throughput Diffusion Pumps User Manual
75
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