Siemens vacuum circuit breaker 38-3AH3 38 kV - Manual (Page 57)

Figure 47: Illustration showing required technique for fastening terminal-clamp hardware
Position of torque wrench to avoid undue stressing of moving contact (36.1)
Holding wrench
Terminal clamp (29.2)
Vacuum interrupter
Torque wrench
Direction of force (P)
Spacer (shoulder) (29.3)
Moving contact (36.1)
Overhaul
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