Siemens GMSG Instruction Manual page 57

Overhaul
Figure 43: Illustration showing required technique for fastening terminal-clamp hardware
Position of torque wrench to avoid undue stressing of moving contact (36.1)
Vacuum interrupter
Moving contact (36.1)
Holding wrench
Spacer (shoulder) (29.3)
Terminal clamp (29.2)
Torque wrench
Direction of force (P)
57