Fig. 2 Silage Giraffe
Fig. 3 Straw Giraffe
Material can be delivered from two chutes
simultaneously or from one chute at a time. By fitting
the optional high level straw or silage Giraffe Chute,
material can be discharged over gates or barriers etc.
The extra discharge height is also useful when it is
necessary to spread over a greater distance.
Where equipped with a right hand silage chute (4040
and 5050 models only) and it is necessary to deliver
material over a substantial distance, the hinged plate
fitted in the chute base may be swung up into a
horizontal position to act as a deflector - as shown in
figure 3.
The machine must never be run with either of the two
chute blanking plates removed unless the correct
chute is fitted onto the aperture in question.
Unapproved chute modifications should not be carried
out, otherwise Safety Regulations may be infringed.
6.0 PREPARATION OF THE TOMAHAWK
If fitted with the booster fan kit, position the Tomahawk
on a level surface and check the hydraulic oil level
using the sight gauge on the right hand side of the
tank.
On the tank outlet pipe check that the tank isolation
valve is open allowing oil to flow into the pump. The
valve is open when the lever is in line with the pipe.
If fitted with the remote drum rotation kit, check that
the handheld drum rotation transmitter is fitted with 3 x
AAA batteries.
7.0 PREPARATION OF THE TRACTOR
The PTO power required to drive the Tomahawk is
typically about 45KW (60 HP). However, the suitability
of any particular tractor will depend upon, a) the
strength/capacity of the 3 point linkage, b) its stability
and c) operating conditions. Front end weights may
be
considered
necessary
depending
upon
circumstances. Castor wheels are available as an
optional extra where stability is a particular problem.
A Quick Hitch A-Frame built into the machine, so this
can be used as an option to the normal 3 point
linkage. In either case, stabilisers or adjustable check
chains must be fitted.
NOTE.
Do not use the A-Frame quick-hitch system if
the optional castor wheels are fitted. The normal 3-
point linkage system must be used if castor wheels
are attached to the machine.
The machine is designed to use the standard 540
R.P.M. PTO shaft. However speeds of up to 1000
R.P.M may be used if specific circumstances
necessitate this. The higher speed will cause an
increase in power consumption.
The Tomahawk uses the tractor hydraulic system to
power the drum rotation motor. A rotational speed of
approximately 7 - 10 R.P.M. is required for the
shredding of wet material (4040 and 5050 models
only). Where the tractor does not incorporate a
means controlling the hydraulic flow, it may be
necessary to fit a separate flow control valve to
achieve the correct drum speed. For dry materials,
drum speeds of up to 15 - 20 RPM may be used to
improve the feed rate if necessary.
The hydraulic motor requires a double acting spool
valve or a single acting valve with an unrestricted
return. Whichever is used, the hydraulic supply must
be independent of the 3 point linkage. Some tractors
may require a separate linkage isolating valve to
achieve this. If a hydraulic top link is used then an
additional valve will be required to operate it.
If fitted with the booster fan kit the electric power
supply cable for the oil cooler should be connected to
the tractor auxiliary 3 pin DIN9680 socket. Should a
socket not be available on the tractor then an
additional power supply cable with a 3 pin female
connector is available (part number EC2001) which
can be wired directly to the battery. The brown wire is
to be connected to the positive (+) battery terminal
and the blue wire to the negative terminal (-). There is
a 7.5 amp fuse fitted in the electric power supply cable
to protect against electrical overload. Under no
circumstances
should
the
electrical
overload
protection be bypassed or fuses with a rating
exceeding 7.5 amps be used.
Warranty will be
invalidated if this occurs.
If fitted with the remote drum rotation kit the electric
power supply cable for the remote drum rotation kit
should be connected to the tractor auxiliary 3 pin
DIN9680 socket. Should a socket not be available on
the tractor then an additional power supply cable with
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