Siemens SION - Page 57

Installation
9229 0025 176 0E 57
2021-11-15
Mounting contact arms with Ø 60 mm and contact systems
Contact systems without a contact arm adapter are only mountable on contact arms
with Ø 60 mm. These contact arms already have an integrated contact arm adapter
(see Fig. 89).
• Place the contact arms (22) on the threaded rod (22.1) (see Fig. 89).
• Grease contact systems without contact arm adapter for contact arms with
Ø 60 mm on the rear side on the contact fingers with Molykote Longterm 2 (see
1.).
• Attach the contact system to the threaded rod up to the contact arm. Note the
position of the contact system (round outer edge towards the contact arm) (see
2.)
• Tighten the contact system with the washer and hexagon nut (see 3.)
Tightening torques for greased threads:
- M12: 40 ±4 Nm
- M16: 100 ±10 Nm
• After installing the contact system, grease the contact fingers with Molykote
Longterm 2 (see 4.)
Fig. 89 Attaching contact arms – example with
Ø60mm
Fig. 90 Example with contact arms Ø 60 mm – attach-
ing the contact system without the contact arm
adapter
0025-74
22
22.1
0025-73
1.
2.
3.
4.