Spearhead AGRICUT
240 Offset
22
PTO Driveshaft Installation
The PTO driveshaft attaches between the tractor and the machine gearbox to transfer
the power required to 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
–
proving 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 the 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 150mm (
6”).
PTO Maintenance
To increase the working life of the PTO shaft it should be periodically checked,
cleaned and lubricated
–
refer to the manufacturer’s manual provided with the shaft for
further details on this subject.
