FTx/ITx-SH-e-0720 49
6 Repair of terminals
6.1 Important information
When performing repairs please refer to the exploded view drawings and lists of spare parts in Chapter 4 of this manual.
Important: After replacing components, a functional check of the terminal must always be carried out.
6.1.1 Safety and environment
Whenever repairs are carried out, the following safety precautions must always be taken:
– The terminal must be disconnected from the power supply before repair
work is started!
– The terminal and the OptionPac contain electronic components which can be
damaged by electrostatic discharges. You must therefore always wear a
grounded wriststrap when performing repair work. Grounded wriststraps
can be purchased from specialist electronics dealers.
– Defective components must be disposed of according to the instructions in
Chapter 1!
6.1.2 Tools and working aids
– Torx screwdrivers T10, T20, and T30
– Phillips screwdrivers size 2
– Insulated slotted-head screwdriver (with plastic-covered shaft), size 4
– Grounded wriststrap (to protect against electrostatic discharges)
6.1.3 Work instructions
Take great care when inserting and tightening screws into holes tapped directly into the aluminum casting: After inserting
the screw, always turn it first about 1 turn counterclockwise until it engages in the existing thread, and only then screw it
tight! Do not tighten the screw too much, since this may damage the thread in the aluminum casting!
6.2 Disassembling/reassembling the terminal
• Remove base plate from terminal or OptionPac (8 screws, Torx T20).
• If OptionPac is installed: Disconnect all cable connections between OptionPac and terminal in OptionPac.
Tip: Note where cables are connected. Unfasten OptionPac from terminal (4 Phillips screws) and lift off.
• Reassemble in reverse order.
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