Volvo VNL 780 Operator's Manual page 119

Front Engine-Mounted PTO VHD
The switch legend shown denotes a front engine (crankshaft) driven PTO. This PTO is clutch
independent and may be used while the vehicle is in motion.
W3005505
PTO Speed Adjustment
Engage the PTO before adjusting the speed. For the PTO speed adjustment to function, the
Cruise Control or idle adjust cannot be active, brake and clutch pedals must be released, and
vehicle speed must be under approximately 8 km/h (5 mph).
To set engine speed:
1 Set the PTO/CC switch in the ON position.
2 Depending on configuration, the engine speed may automatically be selected when the
PTO dash switch is activated (Volvo engines only).
3 If NOT, then
•
Volvo engines: Press the RESUME button to achieve the preset PTO engine
speed. Alternatively, the accelerator pedal can be used to achieve the desired
engine speed, and press SET+ or SET- to hold that speed
•
.Cummins engines: Press either the RESUME, SET+, or the RESUME and SET+
buttons simultaneously to achieve one of three possible preset speeds.
INSTRUMENTS AND CONTROLS
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