General Machine Products 89910 Whisper Micro Fiber Cable Blowing Machine - Manual (Page 27)

Page 27 General Machine Products Co., Inc.
APPENDIX 2
Determining the correct drill torque setting
Select a sample of the cable to be used. Pass the cable through the machine as described in
the manual. Feed the cable into the beginning of a length of sample tube (say 15’ long). Seal
the open end of the tube.
Set the drill’s clutch to its lowest value (normally 0 or 1). Drive the cable hard into the sealed
end of the sample length of tube. The roller will stop turning, this is because the torque limit
has been reached. Repeat this procedure, each time turning the clutch up by one position.
Eventually, the cable will buckle. The setting of the torque is now a little too far. Turn it back 1
position. This is the optimum setting.