Manitowoc Grove GMK4100L-1 Operating Manual page 236

Driving
5.1 Before driving
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The different time groups are shown with the following symbols:
Driving times: As soon as the vehicle starts to move, the tachograph auto-
matically switches to the symbol for driver 1 driving time.
If there are two diagram sheets inserted, the tachograph automatically
switches to stand-by time for two-drivers operation.
Working hours: For all other work, the same activities apply as for stand-by
time.
When setting the working hours and stand-by time, observe the applicable
local regulations for the country in which you are working.
Stand-by time: Periods of presence at the truck crane, e.g. crane operation,
maintenance work, passenger time, etc.
Breaks and periods of rest: These times are prescribed by law and must be
observed.
If the drivers swap during two-driver operation, the diagram sheets in the
trip recorder also have to be changed. The driving time is always recorded
on the diagram sheet which is on the isolating plate (driver 1).
In single-driver operation, the symbol for resting must always be set for
driver 2 otherwise an error message will appear.
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GMK4100L-1