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TrackDrive (TD) Series
Operating & Safety Instructions
4.1.7
BOOM CONTROLS
As soon as all four outriggers are making contact with the ground, the four sensing switches will
activate allowing the Booms to be elevated. Releasing the Hydraulic Duty Selector automatically re-
sets the circuit to permit this. If the Ground Station Key Switch is turned to the 'On' position, the
adjacent green button will allow the Booms to be moved, using the Ground control levers. At the same
time, the Foot Switch in the platform would be inoperable. Turning the Ground control Key Switch to
the 'Off' position allows the Platform footswitch to be used to elevate the Boom using the platform
controls. As soon as the Booms are raised sufficiently to clear the 'booms-down' switch, the outrigger
controls are isolated, preventing any ground personnel from taking control of the outriggers, when
elevated. At the same time, the drive control levers also become isolated.
The machine can now be manoeuvred through its entire working envelope, allowing both operators to
ascend to a working height of 12.2 metres and an outreach of 6.1 metres. The slew control gives an
effective slew angle of 406 degrees (203 each way from rest.) allowing the machine to project further
over the nose of the machine. It is necessary to return back the opposite way to stow the machine
before raising the outriggers.
When the machine is fully stowed, with the booms in-line with the major axis of the machine, the four
outriggers can be raised, reversing the controls used previously and gripping the Hydraulic Duty
Selector. If the machine is being moved a short distance over a level surface, or for fine positioning of
the outriggers themselves, the legs can be left down and the Drive function used at the same time.
This imposes a greater level of responsibility on the operator to ensure that all areas are clear and
particularly that any ground personnel are aware of the movement of the machine. Ideally the operating
area should be coned off whilst this is achieved.
26
*Always follow manufacturer instructions*
*AAA Rent-All 225-291-1356*
English/USA – 01/10
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