Twose Opticut 220, Руководство оператора и каталог запасных частей

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OPTICUT 220/260/300
Rotary Disc Mowers
10
PTO Driveshaft
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.
Always secure the PTO guards with torque chains to prevent them from rotating with the
shaft. Check to ensure the shaft does not contact or foul tractor or machine components
during normal operation - failure to observe this can result in damage to the tractor and/or
machine.
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”).
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.