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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 3" (75mm) – 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 6" (150mm)
overlap when fitted.
If the shaft is longer subtract the
required
shaft
length
plus
an
additional 3" (75mm) - 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.
NOTE: For subsequent use with different tractors the shaft should be measured again to
check suitability – there must be a minimum shaft overlap of 6" (150mm).
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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