Manual

Page 36 of 64 General Machine Products Co., Inc.
PROBLEM SOLUTION
Tractor feed does not pull the cable off the
drum
Assist the drum by turning it or pulling the ca-
ble off the drum by hand.
The Cable Blowing Machine stops.
Hydraulic pressure gauge reads zero.
Machine has tripped out on pressure switch,
cable has hit an obstruction or become
jammed. Turn hydraulic valve to off position.
Turn speed control knob to “MIN”. If cable is
jammed try restarting the Cable Blowing
Machine. If this fails it may be necessary to
pull the cable out a short distance and start
again. Investigate obstruction in duct. If all
else fails it may be necessary to remove the
sub-duct and remake the bad connection.
It is difficult to keep the cable moving near
the end of a duct run
Assist the Cable Blowing Machine by manu-
ally pushing the cable into the tractor drive.
DO NOT BEND OR CRIMP THE CABLE.
The cable is hard to re-start having
stopped
Put air to the system with the cable clamped
between the upper and lower drive chains.
The tractor feed can be restarted after the air
pressure has increased and stabilized. If the
cable cannot be restarted, this may be due to
the weight of cable in the sub-duct, it will be
necessary to pull the cable out and restart the
installation with the full air pressure applied.
7.2. TYPICAL PROBLEMS EXPERIENCED WHEN CABLE
BLOWING: