Condux APS75 Underground Pulling Trailer - Manual (Page 17)

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IMPORTANT: Always keep tension on the winch line when paying it out to
prevent slack from developing in bull wheel.
In typical applications, the winch line will need to be paid out to reach the work
area first, i.e. manhole, duct bank, etc. The winch line can then either be pulled
through duct bank with a pulling rope or tape, or installed with a Condux Winch
Line Blower.
E. PREPARE FOR PULLBACK
Adjust the Maximum Tension Limit (if desired) to the desired maximum pulling
tension value (measure in lbs). See detailed instructions on page 13.
Turn on RECORD function (if desired) to record pull data. See detailed
instructions on page 14. Select from the following three options:
1. Record New - used when starting a new pull
2. Continue Prev. - used when a pull has been interupted and it is necessary to
restart the Record function
3. Stop Record - used at the end of a pull to shut off record function
G. PULLBACK
Increase engine speed to maximum - full down in the last detent. To start
pullback, pull the joystick down slowly towards the "pullback" label. The speed
of the pullback can be increased by increasing the pull on the joystick. During
pullback make sure to monitor pull force and distance. (Figures 6 & 7)
NOTE: An automatic system will optimize the horsepower required by the
hydraulic system for maximum pull speed and force. This is done to prevent
the engine from being overloaded or stalling. This will be noticeable when
the engine speed drops below 3300 rpm and the joystick is in the full
down position.
H. SHUT DOWN
At the end of the pull, relieve pulling rope tension using the joystick. Allow the
machine to cool down for five minutes before turning off the ignition key. The
hydraulic oil cooler is automatic, and will start and stop as required. It is normal
for it to run for a short period of time after the engine is turned off.
Figure 6. Monitor Pulling Tension
and Distance
Figure 7. Use joystick to Increase
the Pullback Speed