General Machine Products 89000 Cable Blowing Machine(Previous) - Manual (Page 17)

Page 17 of 64 General Machine Products Co., Inc.
12. Ensure all air has exhausted from the air chamber
and sub-duct. Open the air chamber and sub-duct
clamp and withdraw the sub-duct. Add GMP’s Air-
Glide lubricant to the sub-duct at the rate of 1
quart (.95 liters) of lubricant per 2000 ft (600 m) of
sub-duct assuming a 1 1/4 bore. Adjust quantity
for different bore sizes. Note: Never open the air
chamber until the air pressure gauge reads
zero.
13. Insert a suitable foam plug into the sub-duct and
re-fit the sub-duct into the air chamber and secure
with the sub-duct clamp as already described. The
foam plug should be sized so as to be a snug fit in the
sub-duct. By blowing this plug down the sub-duct the
lubricant will be evenly distributed along the length of
the sub-duct. Before blowing the plug through the sub-
duct, ensure the sub-duct cable exit retaining device is
fitted at the end of the run, to prevent the plug flying
out of the open end of the sub-duct causing injury.
14. Re-fit the air chamber lid ensuring correct location on the dowels and tighten down the 4
retaining screws.