FEC AFC1500 User Manual

Page 97

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FEC AFC1500 Operations Manual

Chapter 6: Fastening Instructions (Rev. 6: 10/09)

Page 6-11

NOTE: When performing multiple step Angle control fastening, the rotation Angle should be
performed as one continuous operation. There should be no intermediate stop / synchroniza-
tion points once Snug Torque has been sensed and rotation angle is being controlled.

Under special conditions multiple steps can be performed using intermediate Torque or Angle
stop/synchronization points as shown below.





FIG. 6-1-2d Angle Control Functions for Three-Step Fastening



1

st

Time

Final Time

Standard

Angle

Snug Torque

Threshold Torque

Speed Change Torque

1

st

Torque

Crossover Torque/Angle

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