Spearhead Trident
4000/5000/6000
11
Attaching to the Tractor – Mounted Machine
It is advisable to remove the clevis drawbar from the tractor, so that it does not
contact the PTO shaft at any point.
Before coupling to the tractor, it is important to check that the tractor lift rods are set
to an equal length and that the lower link arms are set at the correct distance apart to
fit to the machine which is set at CAT 2 spacing.
Attach the lower links first, then fit the top link and finally connect the PTO and
hydraulic couplings. Care must be taken when lifting the machine for the first time
with the PTO connected otherwise the PTO shaft could bottom out and damage the
shaft, machine or tractor. (See below for Shortening of the PTO shaft).
Once connected to the tractor please ensure that the lower link arms do not slew
from side to side, by adjusting the stabilizer turn buckles on each side. This will
prevent the machine from moving from side to side when in transport, which can be
dangerous. See decal below for reference:
Shortening The Input PTO Shaft
Before fitting the PTO for the first time, it may be necessary to adjust the length.
There should be maximum engagement of the sliding tubes without bottoming at the
shortest operation position.
To check, first connect the mower to the tractor.
Pull the PTO shafts next to each other in the shortest working position. If necessary,
shorten the inner and outer guard tubes equally (
Fig 1
).
Shorten the inner and outer sliding profiles by the same length as the guard tubes.
File all sharp edges and remove burrs.
Grease sliding profiles.
To fit the PTO, first clean and grease. Press pins on the yoke and simultaneously
push the PTO drive shaft onto the PTO shaft of the tractor until the pins engage.
The PTO shaft is fitted with a non-rotating safety guard. It should be secured to the
machine and tractor with the two retaining chains provided.
Connect the two hydraulic pipes to the tractor’s hydraulics, thinner hose to pressure
and hose thicker to returns. It is important not to reverse the oil flow
