Textron PT-3500, Руководство оператора

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Revolution Series PT-3500 / PT-7500 Puller Tensioner Page 58
Operation
Pulling Operations

Set the levelwind starting direction by
pressing and holding the [LEV WIND DIR]
button for three seconds. The
arrow indicators will toggle on
the
center
screen showing which
way the levelwind is
programmed to move.

Ensure that the system is set to PULL MODE. If
not, select PULL MODE on the system control
display by pressing and holding
the [SELECT MODE] button for
three
seconds to
toggle modes.
Repeat the
depressions until
the PULL MODE information bar displays.

Set the line tension limit for
the pull using the rotating
control knob at the top of the
display. Turn the knob CW to
increase the
line tension
limit and CCW to decrease the
line tension limit. After the
knob is rotated to the desired
tension limit setting,
the operator must
push the knob
in to lock in
the
new
tension limit.

Begin pulling in the rope/old conductor by
depressing the joystick trigger then pull back
slightly on the joystick, bringing it out of
neutral, and then pause for about three
seconds for the brake to release. Once the
brake is released, release the joystick trigger
and continue to pull backward on the joystick
until the desired rotation speed is reached.
Once the speed is at the desired level, the
joystick can be released.
NOTE: The tension limits can be changed without
halting operations by using the rotating control
knob at the top of the display.
NOTE: The three second pause allows the hydraulic
system time to build enough pressure to sustain
any pre-existing line tension before releasing the
brake. This is a safety feature of the system that
prevents the drum from rapidly paying out or
jolting as soon as the brake is released.
NOTE: The reason the joystick must first be pulled
back slightly out of neutral is that this motion
triggers the release of the hydraulic brake and
begins the hydraulic pressure building sequence.
As soon as the brake releases, the operator will
notice the drum beginning to rotate very slowly
backward toward the operator. This is also
designed to pull any slack out of the line.