Mack V-MAC IV, Руководство оператора

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V-MAC Co-Pilot Operator's Manual 69
Daytime Running Lights (DRL) Override Switch
(Optional)
Daytime Running Lights (DRL) come standard on all MACK vehicles and can be
optioned with or without an override switch. When the DRL override switch has been
specified, different conditions can be selected that cause the DRL to automatically
activate. DRL can be automatically turned on when the parking brake is released, the
engine is running or both. Only one of these choices may be selected. Using DRL
will illuminate the low beam headlamp bulbs at a slightly reduced intensity. The DRL
function will monitor high beams as well. If the high beams are activated, the DRL
will be temporarily turned off until high beam use ceases.
DRLs offer additional safety when driving in low light conditions when the operator
may not normally turn the headlights on. Having headlights on at all times makes the
vehicle easier to spot in bad weather, dusk or shade or when there is glare. DRL offer
the ability for drivers to give a courtesy flash as a signal when it is safe to merge
into another lane on the highway. Turning DRL off temporarily for slowly rolling
through weigh stations or when waiting in line to receive bill and weighing tickets
is convenient.
When the operator presses the DRL override switch, the headlamps will go out if
below the DRL speed threshold and flash if above the DRL speed threshold for a
designated period of time (customer programmable in VCADS). It is also possible to
toggle the headlamps back on if necessary.
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