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PTO DRIVESHAFT INSTALLATION
The PTO driveshaft attaches between the tractor and the machine gearbox to transfer the
power required to the run and operate the machine – it is important to achieve the correct
shaft length to avoid risk of it 'bottoming out' when raising or lowering the machine.
The procedure for measuring and
cutting the shaft is as follows:
Measuring the PTO Shaft
With the machine attached to the
tractor in the working position measure
the horizontal distance 'A' from the
tractor's PTO to the input shaft on the
machines gearbox and subtract 75mm
(3") – this figure is the required shaft
length.
Place the fully closed PTO shaft on
the ground and measure its overall
length, if the shaft is shorter than the
required length you can use it without
the need to shorten - providing it
allows for a minimum 150mm (6")
overlap when fitted.
If the shaft is longer subtract the
required shaft length plus an additional
75mm (3") - the resulting figure is the
excess length that will need to be
removed from each half of the shaft.
Cutting the PTO Shaft
Separate the two halves and using the
measurement obtained above shorten
both the plastic guarding and the inner
steel profile tubes of each shaft by this
same amount. De-burr the cut tubes
with a file to remove rough or sharp
edges and thoroughly clean to remove
swarf before greasing, assembling and
fitting the shaft.
For subsequent use with different tractors the shaft should be measured again to check
suitability – there must be a minimum shaft overlap of 150mm (6").
Maintenance
To increase the working life of the PTO shaft it should be periodically checked, cleaned
and lubricated – refer to the PTO maintenance section for further details on this subject.
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