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TrackDrive (TD) Series
Operating & Safety Instructions
4.1.8
EMERGENCY CONTROLS
Emergency descent and/or machine recovery is achieved by the use of the standby hand pump,
mounted on the base of Boom 1. This can accommodate all functions, although the drive system
would require more flow than would be apparent.
The Ground controls are located primarily to permit the machine to be recovered if the operator is
unable to manoeuvre the machine himself. The second key turns the ground station 'On' and the
Platform controls 'Off' allowing the machine to be moved using the ground controls.
The Emergency hand pump can be used to move the machine in all directions permitting recovery of
the elevated booms and personnel. Attention should be given to the direction of recovery of the work
platform, since the hand pump gives the ground operator the ability to manoeuvre the machine in all
planes, including slewing towards or lowering into a potentially unstable area.
recommended to evaluate the nature of the emergency before recovery is attempted, and if appropriate,
the machine can be moved to limit the projection of the booms in the prohibited direction.
Once stowed, the outriggers can be fully raised to enable the machine to be recovered for attention,
although it might be desirable to leave the front outriggers deployed to permit the canopies to be
removed. The over-ride levers, situated on the proportional control block are used in conjunction with
the hand pump to operate the outriggers manually. The Emergency hand pump does allow the drive
controls to be operated, although minimal flow would be available in any event.
If the diesel engine requires 'jump' starting, external connection points are provided adjacent to the
starter battery on the vehicle nearside. Connecting a separate 12V battery of adequate size to the
terminals provided, positive-to-positive, negative-to-negative, will allow the Diesel Key switch to turn
the engine over, even in the event of a dead on-board battery. Once started, the jump leads can be
removed, the engine giving sufficient feed to the starter battery to recover and also power the control
circuit. The diesel engine should not be allowed to stop until sufficient charge has been restored to the
battery, otherwise another 'jump' start would be needed.
Shutting down all functions is possible by depressing the Emergency stops, positioned at both platform
and ground control stations. The diesel engine can be stopped in a similar fashion, or by turning off
the selector key in the platform or the diesel Key switch. Selection of the power source is only possible
from the platform, effectively interlocking the two available options.
24
It is always
English/USA 12/09
Courtesy of Crane.Market
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