8999118EN: v1.1 21/12/2020
24
Original instructions (ENGLISH)
Website: www.spearheadmachinery.com
4.5.1
Shortening The PTO Length
Both machinery and tractor must be parallel to one another.
Pre-assemble the PTO shaft and check that the drive tube overlap is not less than 150mm, see Figure
4.2 and Figure 4.3 a.
Check that the minimum overlap of the shaft guards is not less than 50mm, see Figure 4.2.
If the overall PTO length is likely to reduce during operation then ensure that at its minimum there is at
least 40mm movement left between the guards, see dimension ‘A’ in Figure 4.2.
If the PTO needs to be shortened, cut both tubes as both halves must be shortened equally, see
Remove burrs with a file and clean any residual cutting debris from the tubes.
Before fitting the PTO shaft to the tractor, grease the sliding drive shafts and bearing units.
Fit the PTO to the tractor ensuring that the locking peg and collar on the spline-coupling is fully
engaged.
Attach the PTO guard check chains to the tractor and to the machine to prevent guard rotation.
Figure 4.3
(a)
(b)
(c)
