
22
Operating Instructions – Explosion-Proof AC Motors DR63/eDR63, DVE250/280
4
Painting
Mechanical Installation
4.6.2
Tightening torques
The following table shows all the tightening torques required for this procedure:
4.7
Painting
WARNING
Possible damage to the motor outputs when turning the terminal board.
Possible damage to property.
• To make sure that the cables have not been damaged, carry out an insulation test
after re-assembly, see chapter "Extended storage of motors" (page 17).
Key num-
ber
Screw
Applies to
Tightening torque
in Nm
in lb-in
[2]
Terminal stud nut
M6 stud
3
26.6
M8 stud
6
53.1
M12 stud
15.5
137.2
[61]
Pan head screw option terminal
EDR.71 – 225
1.8
16.0
[113]
Pan head screw DIN rail connection
EDR.71 – 132
5
44.3
[117]
Hexagon screw grounding inside
EDR.71 – 132
4
35.4
EDR.160
25.5
225.7
EDR.180 – 225 (alumi-
num design)
25.5
225.7
EDR.180 – 225 (gray-
cast iron design)
50
442.5
[119]
Pan head screw of terminal box
EDR.71 – 132
5
44.3
EDR.160 – 225
25.5
225.7
[123]
Hexagon screw terminal box cover
EDR.71 – 132
4
35.4
EDR.160
10.3
91.2
EDR.180 – 225 (alumi-
num design)
10.3
91.2
EDR.180 – 225 (gray-
cast iron design)
25.5
225.7
[140]
Hexagon screw grounding outside
EDR.71 – 225
4
35.4
[a1]
Screw of option terminal / rectifier
EDR.71 – 225
1.8
16.0
[a2]
Flat head screw option terminal
EDR.71 – 225
1
8.9
NOTE ON EXPLOSION PROTECTION
SEW-EURODRIVE delivers the drives with a painting that complies with the require-
ments for preventing electrostatic charging according to EN / IEC 60079-0. If you re-
paint the motors or gearmotors, observe the requirements for preventing electrostatic
charging according to EN 60079-0.