General Machine Products 89000 Cable Blowing Machine(Previous) - Manual (Page 21)

Page 21 of 64 General Machine Products Co., Inc.
12. Release the adjusting screw locking ring, turn the adjusting knob until the mark on the air
chamber support bracket aligns with the size of the cable to be installed on the increment
gauge. Tighten the locking ring to prevent any movement during installation. (Refer to sec-
tion 11 for details).
13. Ensure that the sub-duct is fully prepared for use, i.e.
▪ Fully connected
▪ Pressure tested
▪ Cable exit retaining device fitted
▪ Lubricated
For further details on sub-duct lubrication refer to Section 5
14. Open the collet retaining bracket on the pivot bolt.