Textron PT-3500, Руководство оператора

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Revolution Series PT-3500 / PT-7500 Puller Tensioner Page 64
Operation
Tensioning Operations

Begin tensioning 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 it is all the way back. The joystick
can then be released.
I n tension mode, t he
joystick trigger should always be released
once the hydraulic brake is released-
(see
BRAKE ON/BRAKE OFF section).

Continue to monitor the line speed and
tension, and the footage counter.

During operations, the tension limits can be
adjusted by rotating the control knob at the
top of the display- (CW to increase; CCW to
decrease). Once the tension is adjusted, press
the knob in to lock in the new tension setting.
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.
NOTE: To stop the reel rotation at any time, return
the joystick control to the center neutral position,
and the hydraulic drum brake will set.
CAUTION: Never payout all of the conductor off of
the reel. Leave at least one layer of conductor
wrapped on the reel; otherwise, the conductor end
could be pulled from its anchor point.
NOTE: If the knob is not pushed in, the new tension
setting will not be applied. The operator must push
the knob in to lock in the new setting.