ArcGlide THC Replacement Parts Field Service Bulletin 806560 15
2 – Replacing ArcGlide parts
228578 – THC processor board
Follow the steps in Accessing control module parts on
page 12 to open the rear panel. Set aside all screws and
other hardware for reuse.
To access the THC processor board, you must use the
following
procedure to remove additional parts:
428081 – Servo amplifier module on page 36
To remove the THC processor board:
1. Remove the
two screws that attach the THC
processor board to the top of the enclosure.
2. Use a 1/4-inch socket wrench with an extension to
remove the 6 standoffs from the inside of the front of
the enclosure.
3. Remove the enclosure from the front panel assembly.
4. Disconnect the Ethernet cable from J8, the ribbon
cables from J2 and J5, and the LCD cable from J4.
5. Remove the 2 screws that secure the board to the top of the enclosure.
6. Ease the board from the 100-pin connector on the THC control board.
To replace the THC processor board:
1. Car
efully align J3 on the THC processor board with J1 on the THC control board. Gently press the connectors
together to avoid bending the pins.
2. Fasten the two screws that secure the board to the top of the enclosure. Tighten the screws to 1.13 N·m (10 lb·in.).
3. Connect the Ethernet cable into J8, the ribbon cables into J2 and J5, and the LCD cable into J4.
4. Replace the enclosure on the front panel assembly, with the opening for the heatsink on the left, and the tabs that
hold the control board on top.
5. Replace the 6 standoffs inside the front of the enclosure. Tighten the standoffs to 0.90 N·m (8 lb·in.).
Use the following procedures to repl
ace additional parts:
428081 – Servo amplifier module on page 36
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