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4.3.4. Module mounting
•
Mason's lacing cord
•
Measuring tape
•
Possibly distance template for distances between the modules
•
Cordless screw driver
•
Size 8 socket for cordless screwdriver
•
Size 6 hexagon socket wrench / 40TX key
•
Torque wrench (< 8 Nm)
•
Size 6 hexagon socket wrench / 40TX bit for torque wrench
4.4. Torque specifi cations
4.4.1. Bolted connections in the substructure
Name
Tightening torque (MA-Nm)
Hexagon head bolt DIN933 M12x30
A2 GMB
Hexagon nut DIN6923 M12 A4
Washer, large DIN9021 M12 A2
56 Nm
4.4.2. Fastening of the module clamps
Name
Tightening
torque (MA-Nm)
Module
arrangement
Hexagon socket screw DIN4762 M8
(20 - 35 mm)
KlickIn click component for nut M8
Square nut DIN557 M8 A4
15 Nm
H and V in com-
bination with
module clamp
adapter
Hexagon socket screw DIN912
M8 A2 (25 - 45 mm)
8 Nm
V
TX stud screw M8 A2 GMB
(42.5 - 55 mm)
15 Nm
H and V in com-
bination with
module clamp
adapter
Always fasten the bolted connection by turning the bolt head! When checking
the pre-stress of the bolts, it has to be considered that constraints and frictional
forces can lead to a loss of clamping force. This was taken into consideration when
the tightening torques were determined. When a bolted connection is checked, it
must not loosen when 50% of the specifi ed tightening torque is applied.
Fig. 4.4.1.-1 (screw connection M12)
Fig. 4.4.2.-1 (Standard module clamp)
Fig. 4.4.2.-2 (steel module clamp)
Fig. 4.4.2.-2 (Rapid 2+ module clamp)
Schletter Solar GmbH – Alustraße 1 – 83527 Kirchdorf
Mounting instruction
FS UNO
with SRF Foundation Posts
| 2016.09 V.00
4
