Allen-Bradley PowerFlex 755T

18 Rockwell Automation Publication 750-IN100B-EN-P - July 2017
Chapter 1 Product Overview
Fastener Torque Sequences
The following illustrates initial and final tightening sequences for components
that are fastened to a heat sink by using two, four, and six screws. Initial torque
is 1/3 (33%) of final torque, except six-point mountings, which require
0.7 N
•m (6 lb•in) initial torque. The numeric illustration labels are for your
assistance. Drive components do not contain these labels.
Figure 1 - Two-Point Mounting
Figure 2 - Four-Point Mounting
Figure 3 - Six-Point Mounting
ATTENTION: Components can be damaged if initial tightening procedure is
not performed to specification.
1 2
1 2
2 1
Initial Sequence
Final Sequence
1 2 43
4 3 12
1 3
4 2
Initial Sequence
Final Sequence
4 65
4 65
1 2 3
1 2 3
2 4
1 5
6
3
Initial Sequence
Final Sequence
Do not exceed 0.7 N
•m (6 lb•in) on initial torque of all six screws.