CONTROLS AND DISPLAYS INSTRUMENTS AND CONTROLS
Regional Haul
(R05/10) Y53-6033 – 25 –
9. Cruise Control, Active
Illuminates when cruise control is active.
10.Dump Truck, Body Up
Illuminates when Truck Dump Body is up.
11.Dump Truck, Trailer Body Up
Illuminates when Trailer Dump Body is up.
12.Emissions, Diesel Particulate Filter
(DPF)
Illuminates when diesel particulate trap is
plugged. This warning will also illuminate
when regeneration operation is disabled.
13.Emissions, High Exhaust System Tem-
perture (HEST)
Illuminates when the exhaust gas tempera-
ture and exhaust components become
extremely hot.
WARNING!Temperatures of the exhaust
pipes and at the outlets of the exhaust sys-
tem during and shortly after a regeneration
event will be extremely hot. If the High
Exhaust System Temperature (HEST) warn-
ing lamp is on:
•Do not park in an area of combustible vapors
or materials. You must keep combustibles at
least five (5) feet away from the side and top
of the vehicle while the HEST light is illumi-
nated. Always park your vehicle outside. Fail-
ure to do so could ignite an explosion or harm
bystanders which could result in death or
serious injury.
•Do not park in an area where people are
close by. You must keep bystanders at least
five (5) feet away from the exhaust outlet
while the HEST light is illuminated. Failure to
do so could result in death or serious injury.
The exhaust piping, diesel particular filter
(DPF) or tail pipe become extremely hot dur-
ing engine operation or any regeneration
event and can cause death or serious burns
to the skin. Allow adequate cooling time
