Driving and Operating
79
.
Vehicle Speed exceeds Max
Vehicle Speed. Factory default
setting = 94 km/h (58 mph). PTO
relay will re-engage and
advance to the last engine
speed stored in memory when
both the Vehicle Speed is
reduced below 94 km/h (58 mph)
and the engine speed ramps
down below the maximum PTO
engagement speed (1500 rpm
factory default setting).
.
Engine Speed exceeds Max
Engine Speed for more than
15 seconds. Factory default
setting = 2100 rpm.
.
5
on the cruise control is
pressed.
.
The parking brake is applied.
.
The shift lever is moved out of
manual shift selection, M1,
M2, or M3.
Resume memory speed is cleared
for the above actions.
Although the PTO system attempts
to limit accelerator and PTO switch
inputs to comply with maximum
speed and/or rpm parameters, some
vehicle operating conditions such as
downhill acceleration can cause the
vehicle speed or engine rpm to
exceed these limits. In those cases,
the PTO system may disengage.
Operator Selectable In-Cab
Mode (OSIM)
To disable OSIM Stationary PTO:
.
Press and release the PTO
in-cab switch.
To disable OSIM Mobile PTO:
.
Press and release the PTO
in-cab switch.
Prolonged or Extended PTO
Operation
When operating the vehicle in
stationary PTO mode, the Diesel
Particulate Filter (DPF) will continue
to filter the exhaust and accumulate
soot. The engine control system,
depending on the speed and load
being applied by the PTO, may not
be able to generate enough energy
or adequate heat needed to clean or
regenerate the DPF. Continued
operation under conditions that do
not allow effective regeneration or
cleaning will eventually plug the
DPF and result in reduced power.
The ENGINE POWER IS
REDUCED Driver Information
Center (DIC) message and
malfunction indicator lamp will be
displayed, and dealer service will be
required to return the vehicle to
normal, full power operation. To
prevent this from occurring,
frequently monitor the vehicle during
PTO operation, paying particular
attention to the CLEAN EXHAUST
FILTER SEE OWNER MANUAL
NOW DIC warning message. If the
DIC message is displayed during
PTO operation, see Diesel
Particulate Filter 0 38 for information
on how to clean or regenerate
the DPF.