McCONNEL MULTIDRIVEM380‐4&M420‐4
53
Hydraulic Power Take Off (P.T.O)
SAFETY WARNING - ALWAYS DISENGAGE THE PTO BEFORE
DISMOUNTING FROM THE CAB. THE ENGINE MUST BE SWITCHED OFF
BEFORE CONNECTING THE PTO OR MAKING ADJUSTMENTS.
PTO system
Single PTO Powersaver pump
NEVER ENGAGE PTO ABOVE 1000 ENGINE RPM.
Operation
The PTO is hydraulically driven, is fully independent and may therefore be engaged at any
time providing the engine revs are not too high. The PTO is controlled by the main MCU
monitor. The standard option is for a POWERSAVER load sensing pump which only
delivers the amount of oil required, irrespective of engine rpm, (above initial setup speed).
Operating the PTO
The PTO is switched on/off by the PTO button on the switch panel (hold for ½ second). An
LED on the switch indicates when it is switched on. The current speed is shown on the
PTO information display along with the current status and operating mode.
Automatic mode – In automatic mode the speed is monitored by the electronic system
and adjustments are made to the hydraulic valve to maintain the preset PTO speed. This
will adjust the valve and make allowances for temperature, pressures and input flow.
Manual mode – This is a very simple control where the output of the valve is set to a
given percentage. This mode can be used when there is no speed signal input that can be
used to help govern the speed. This is often the case with centrifugal type spray pumps.
Remote mode – The PTO is controlled by a remote panel near the cab door. This is used
when filling a sprayer. Preset speeds for both the engine and PTO are activated when the
remote switch is switched on. It will use whichever PTO mode is active at the time (auto or
manual) on the MCU.
Setting the PTO speeds/outputs
The PTO speeds/outputs are controlled from the PTO screen on the MCU. To get to the
screen press the PTO key on the right hand side of the home screen.
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