Siemens SION 3AE Series Operating Instructions Manual page 19

Fig. 21 Preparing contact systems (120) (up to 24 kV,
1250 A)
Fig. 22 Securing contact systems (110) on contact arms
(120) with Ø 40 mm
9229 0002 401 0A
2016-03-03
For contact arms (120) (in the case of rated operat-
≤ 1250 A), insert them with Ø 40 mm
ing current I
r
contact arm adapters in the contact system (110):
1. Grease the contact finger in the contact sys-
tem (110) with Molykote Longterm 2
2. Adjust the contact arm adapter in the contact
system (110) with the screw, washers and nut
3. Tighten the contact arm adapter with an open-
ended wrench in the contact system (110)
4. Undo the screw with washers and nut.
Fit the contact system (110) onto the threaded rod
and contact arm (120), paying attention to the posi-
tion of the contact system (round outer edge to-
wards the contact arm).
Firmly screw down the contact system (110) with a
torque wrench.
Tightening torque for M12: 40 ±4 Nm
Tightening torques apply to greased threads only.
Grease the other side of the contact system (110)
with Molykote Longterm 2.
Installation accessories
17