Technical information

562600-000, Issue1.0, March 2014
9 of 57
4 Operating and Hazard Situation Recommendations
4.1 RCC - MEC Override
The system is fitted with a key operated master override switch. To access
the master override switch, a tamper detection device must be broken and
the operation of this switch will be automatically logged. Turning the switch to
the override position will allow normal operation of any of the hydraulic ser-
vices controlled by PMERAIL regardless of safety status. When the system is
in override, the external alarms will stay active, the amber and blue lamps will
be off and the red LED will flash along with an ‘In Override’ message will on
the display.
The override key switch should only be used if the system is not operational
due to a fault and the machine needs to be moved due to its location present-
ing a hazard.
The override status will be recorded in the system data logger.
Operating Recommendations
When using envelope monitoring:
 When setting height or slew restrictions,
make sure any implement/tool attached
is in its least favourable position
 Check for correct operation once the
restriction has been set
 Reduce operating speed
 Do not move the equipment quickly
when close to a restriction
 Do not operate the machine in a
reckless manor
 Do not travel with a restriction set
 Reset the slew restriction if the
machine is relocated
Hazard Situation Recommendations
In a limit hazard state:
 Return the control levers to neutral once
a limit has been reached if appropriate
 Operate the machine at a slow speed
 Do not travel
When operating the machine as a crane:
 Ensure Lift Mode is selected during
lifting operations
 Operate the machine at a sensible
speed
 Take extra care when travelling with
a load attached
 Do not operate the machine in a
reckless manner