8999145EN: v1 26/02/2020
35
Original instructions (ENGLISH)
Website: www.spearheadmachinery.com
loads into the mainframe which is rigidly attached to the tractor. Spearhead Machinery will not warrant damage
bought about by abuse of the machines intended use or neglectful handling.
6.4
Cutting Guidelines
6.4.1
The Work Area
Examine the piece of work to be cut. It is very important that the work site is inspected before cutting
and all hidden obstructions removed or their position clearly marked so that they may be avoided.
Check hedges for wire and fencing stakes, and ditches for tree stumps, drain pipes, large stones, etc.
Stalling the cutting attachment in heavy growth is likely to cause damage to the machine.
Do not operate the machine with the cutting attachment slewed more than 40° backwards and ensure
sufficient stability ballast is used when cutting in a slewed position. (Twiga Carrier CF30 only)
WARNING!
Do not allow personnel near the machine while it is operating.
6.4.2
General Cutting Hints
DO NOT
angle the cutting attachment in such a way as to throw cut material towards the tractor.
Avoid rushing into the work.
Always give the cutting attachment enough material to 'bite' into, particularly when a hedge has a lot of
leaf and very flexible thin stems.
6.4.3
Hedge Cutting Hints
Consider how the job should be done before commencing work, as every hedge has a different height,
width, thickness and density of growth. Hedges that have previously been cut by machine tend to
have denser growth, and although they can be cut to any desired shape, it is advisable to trim to the
same shape and height as before.
Cutting causes the new growth to 'tiller' (spread out) and thicken up the hedge. Therefore it is
advisable to cut the hedge side at a slight angle rather than straight, otherwise the hedge may
eventually die at the bottom due to lack of light. The following information gives a few hints on how to
tackle a hedge.
First trim the top down to the height of the previous year's trim in one cut, but do not cut into it as the
old growth will be very thick and strong and can cause premature wear to the blades.
Next trim the sides to the previous trim but not into it.
WARNING!
Do not angle the cutting attachment so that debris is thrown through the hedge when
trimming the far side of the hedge. Always ensure that cut material is directed away from you or
on to the ground.
6.5
Hydraulic Breakout
– Operation And Servicing - Twiga Carrier CF30
only
The Twiga Carrier CF30 is fitted with a sealed-circuit hydraulic ram and hydra-cushion. The circuit is pre-
charged at the factory to create the correct breakout force, which has been calculated to ensure the arm and the
attachment are not damaged when the user collides with an immovable object, or if the user tries to drive too fast
whilst cutting.
Over time this circuit may leak some hydraulic pressure through operational wear on the ram seals, or may need
to be serviced if a hose is damaged during work. This means that the circuit will need to be recharged to the
correct pressure, after any remedial work has taken place to rectify a fault.
